Analysis and solution of the problem of the precipitation of flame retardant PP material

Analysis and solution of the problem of the precipitation of flame retardant PP material
Flame retardant PP material due to its light density, excellent weather resistance and low comprehensive price, more and more manufacturers of all of the favor, in many applications have successfully replaced the flame retardant PS, flame retardant ABS, etc.. Behind the rise of the flame retardant PP material, there is a problem may often encounter problems, that is, the precipitation of flame retardant materials, in the halogen free flame retardant materials, it is more obvious.
Flame retardant PP material due to its light density, excellent weather resistance and low comprehensive price, more and more manufacturers of all of the favor, in many applications have successfully replaced the flame retardant PS, flame retardant ABS, etc.. Behind the rise of the flame retardant PP material, there is a problem may often encounter problems, that is, the precipitation of flame retardant materials, in the halogen free flame retardant materials, it is more obvious.
Flame retardant precipitation not only often in injection molding process have to affect the normal production of model scale, powder caking and mold sticking, in finished parts often happen exhalation, produce white fog like material affect the appearance of the product and lead to decline in flame retardancy and.
Before solving the problem of flame retardant, we first discuss the two important factors that affect the precipitation:
The compatibility of flame retardant and PP base resin
Flame retardant in the PP resin in general in two states: in the form of similar filler filled in resin, and the other is a homogeneous dispersion of the melt in the resin. As the PP is a nonpolar material, the interfacial compatibility between the polar flame retardant and the PP will exist. The worse the compatibility of the interface is, the more easily it will produce precipitation.
Two. The effect of temperature on the precipitation of flame retardant
PP for semi crystalline material, has low glass transition temperature, when the ambient temperature above the glass transition temperature, with the increase of temperature, no amorphous chain segments thermal motion will be accelerated, making and PP resin compatibility poor small molecule flame retardant agent can be relatively easy to overcome the resistance of migration to the surface.
This is parts storage for a period of time after surface sometimes causes of precipitation and high temperature injection molding process is most obvious precipitation process, the precipitation often reflect the mode of scale, etc. in the mold, injection, the higher the temperature of precipitation is more severe. The relationship between the migration rate of the flame retardant and the temperature can be approximately expressed in Figure four. In the range of the decomposition temperature of the flame retardant, the precipitation rate of the flame retardant is significantly increased with the increase of the temperature. At a constant temperature, there is a certain relationship between the precipitation and the time.
After understanding the causes of precipitation, the improvement of the flame retardant precipitation problem can be more effective. There are two main ways:
Scheme:
1 the introduction of strong polar groups (such as amino groups, carboxyl groups, epoxy groups, etc.), to enhance the role of flame retardant and PP interface, can effectively reduce the problem of flame retardant precipitation.
2. Improve the flame retardant agent and resin transfer resistance, reduce the migration rate of flame retardant low molecular weight: reduce the temperature to weaken the chain segment movement or enhance the flame retardant molecular degree and lower molecular weight distribution width becomes effective measures for reducing the precipitation of flame retardant agent of polymerization.
It should be pointed out that: no precipitation of flame retardant PP is not completely without precipitation, which is only to greatly reduce the migration of flame retardant. The current non precipitation flame retardant PP is often based on the high technology cost, therefore, the low cost of anti precipitation is still the current flame retardant PP material needs to be improved.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.
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Advantages and disadvantages of PE pipe PVC pipe and PPR pipe--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Advantages and disadvantages of PE pipe PVC pipe and PPR pipe--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

UPVC pipe fittings should mainly consider the following aspects

How to choose and buy:
UPVC drainage pipe fittings should mainly consider the following aspects:
1 appearance. Good fitting outer wall is smooth, no thorns, no color, clear edges and neat, thick wall, feel thick.
2 heat resistance (standard). Pipe fittings in 150 DEG C oven according to the corresponding wall thickness and drying time, see Table 2, does not appear serious skin, burst, little color changes, especially near the injection point and seam line should not appear to penetrate the cracks.
3 low temperature brittleness (Standard Test). The sample in the refrigerator at 0 centigrade degree placed 30min out immediately after in the cement on the ground free fall, the outer diameter is not greater than 75mm tube attached to fall height of 2m, greater than 75mm tube height of 1m, and see no cracks on the surface of the tube, the intact products prove its performance meets the requirements.
4 and the pipe connecting parts (called standard socket) the length or depth of long enough. Informal enterprises in the production of pipe fittings, in order to reduce costs, deliberately cut corners, bell and spigot are generally shorter, so later in the use of easy to make joint leakage. If considered from the security point of view, socket depth as long as possible, the user can compare or actual measurement. But from the economic point of view, the minimum value of the depth of the mouth is given in the standard.
5 pay attention to the matching between the pipe and the pipe. First application of tube try inserting tube several times, should feel not difficult, but after insertion nor too loose as well; secondly, we should buy matching PVC plastic adhesive to firm adhesion.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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PVC pipe is poisonous?--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe is poisonous?--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Development of different types of pipes

Development of different types of pipes

Plastic pipe will have a greater development, PVC pipe fitting material properties will be improved, to avoid the use of heavy metals containing the stabilizer. A variety of new technologies on the new plastic, are constantly promoting the use of. But the stability of plastic pipe and the aging problem is still the worry.
In order to meet the requirements of safe and reliable operation of water supply pipe network, there are two directions of the development of pipe:
One is the selection of new pipes, phasing out restrictions and does not meet the requirements of the development of the old pipe. The development of excellent performance, good corrosion resistance of new pipe, according to the actual requirements, select the appropriate metal or non metal pipe;
The two is to take measures to protect the surface of the pipe, and the inner lining external anticorrosion coating, to ensure the safety of water quality.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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Plastic pipe fittings with excellent function--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Plastic pipe fittings with excellent function--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Performance characteristics of PVC materials

Performance characteristics of PVC materials

PVC material is completely non-toxic and tasteless, in the production and life now, PVC pipe fittings is also more widely used, the following is a professional manufacturer to introduce the relevant knowledge.
No irritation to the human skin or respiratory system, for those who are allergic to wood and paint, the use of PVC film packaging furniture or kitchen utensils is very appropriate. Through the use of PVC membrane as a decorative film, people can use density board, wood shavings, plywood and fiberboard, reduce the use of timber volume, thereby reducing the destruction of forest and environment. The use of PVC once in the western countries caused great controversy, many people try to use a variety of other materials instead of PVC. But the fact that the quality of PVC than other alternatives compared favorably in the cost than on these cheap materials.
The above is the professional manufacturer to introduce the related knowledge, in this welcome consumers to buy our products.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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The main performance of corrosion resistance of PVC pipe fittings--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

The main performance of corrosion resistance of PVC pipe fittings--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

You don't know the advantages of PVC pipe fittings

You don't know the advantages of PVC pipe fittings
As now the wide application of pipe fittings, on the market more and more types of pipe, when it comes to PVC pipe fittings, we thought it in the market by consumers keen, this is not hard to with its unique advantage of combining, what PVC pipes and fittings, have what advantages, the following for everyone to introduce.
PVC pipe fittings to light known since we are needless to say, corrosion resistance, high pressure is obvious, so you know it smooth inner wall greatly reduces the resistance of PVC pipe and fittings within the liquid flow velocity. In addition, often used in hydropower in PVC pipe fittings, reason by users interested in it has good insulation, effectively reducing the accident danger coefficient.
PVC pipe fittings with the deepening of chemical research into people's production and life, in the production and life play an irreplaceable role.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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Elimination of cold material spot of PVC pipe fittings--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Elimination of cold material spot of PVC pipe fittings--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Cause and method of bending of PVC pipe material--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Cause and method of bending of PVC pipe material--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe should be how to construction

PVC pipe should be how to construction
Before we use PVC pipe fittings, we should first understand how to construction, the following I will introduce you should pay attention to:
First, when the small caliber pipeline by solvent adhesive shall be the jack chamfering small fillet, to form a groove, and ensure the smooth fracture and vertical axis, so as to be bonded firmly to avoid leakage. Second, general diameter greater than or equal to 100 mm PVC tube with rubber gasket. Must arrange the chamfer pipe socket parts before installation, but also check whether the quality of qualified apron. The installation must be the socket and aprons clean. Third, the traditional pipeline installation of the pipe trench excavation only to be able to put the pipe into the pipe ditch and can be sealed. Fourth, general PVC pipe branch split three way stopcock available or vertical slit. At the time of construction can be added with a saddle shaped accessory half three and two links, and with U shaped bolt clamping, so that the thickening of the wall, and then directly in the above drill holes, and then out of the plastic part of the external thread.
Above is the PVC pipe construction matters, and I hope to help you.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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Analysis of bubbles in the section of PVC pipe fittings

Analysis of bubbles in the section of PVC pipe fittings
Some PVC pipe fittings of the section will be the phenomenon of bubbles, which is why? And how to solve it? Here is a small series for you to introduce:
First is probably because the moisture in the materials is too high, this time on the need for the material drying or change the nozzle; the second is probably because mixture low temperature, no discharge of water, this time on the need to raise the temperature of the mixed material; the third may is because exhaust hole vacuum low or pipe is blocked, this time the need to check the vacuum pump and pipeline; the fourth may is because the fuselage or die temperature is too high, the need to reduce the temperature; the fourth may because of the poor thermal stability of the mixed ingredients, this time on the need to check modified formula.
Above is about the PVC pipe fittings section will have the causes of bubbles and the solution, hope can help to solve your problem.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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PVC pipe fittings how to avoid the impact on the environment--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings how to avoid the impact on the environment--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Pvc fittings supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Pvc fittings supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

How to solve the PVC pipe and pipe fittings made brittle

Temperature control of the production of PVC pipe fittings
In the production of PVC pipe fittings, the temperature control is very important, the following for everyone to introduce about this aspect of knowledge:
The processability of PVC material is relatively narrow, and poor thermal stability, so the processing temperature range is also relatively narrow, machine and mold the poor adaptability, arranged between 160 and 210 DEG C, the temperature and the specific still need according to the different extrusion equipment, tooling and different specifications and decide. Because of different machine models and structure, it is a large gap between the capacity of plastic, so the same specifications, the same formula of the pipe processing temperature on different machines can be a difference of 10 degrees -40. Generally, the processing temperature of PVC pipe is smooth and smooth appearance, and the strength of the tube is suitable for the outlet of the tube

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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PVC pipe fittings with the knowledge of the Ming assembly and installation--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings with the knowledge of the Ming assembly and installation--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

On the thermal insulation performance of PPR pipe fittings

On the thermal insulation performance of PPR pipe fittings
PPR pipe thermal conductivity and thermal resistance is an important indicator to assess the performance of building insulation performance, the following will be the PPR pipe manufacturers to introduce our PPR pipe insulation performance knowledge:
First of all, PPR pipe material thermal conductivity is small, its thermal resistance is bigger; the worse the thermal conductivity of materials, its heat preservation heat insulation performance is better. Then it, in general, prevent indoor heat dissipation said heat, to prevent external heat into the person as heat insulation, heat preservation and insulation are collectively referred to as adiabatic. In addition, the PPR pipe fittings with good thermal properties are necessary for all kinds of heating systems. The good thermal performance of PPR pipeline is very important to maintain the temperature stability of the building.
Above is a simple introduction of the PPR pipe insulation performance, I believe we must have learned from the.
Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.
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Need to pay attention to what the process of PVC pipe fittings in storage and transportation--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Need to pay attention to what the process of PVC pipe fittings in storage and transportation--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Methods to test whether the Water Leakage PVC pipe fittings

Methods to test whether the Water Leakage PVC pipe fittings
PVC pipe is widely used in our production and life, but sometimes the Water Leakage, following small series to introduce what test method:
First, field observation, observe the signs of leakage from the ground, such as geographical part of the tube filled with wet traces or clear water seepage, local pipeline soil surface subsidence, the pipeline near low-lying have water exudation. Secondly, it can partition the leak detection method, it is by the meter to detect leakage location and amount of water leakage, this approach is generally carried out in the middle of the night. Again is to listen to the leak, which is effective method to determine the leaking part, it uses tools is a simple leakage listening bar, when in use will listen to leakage at one end of the rod is placed in the pipeline on the ground or gate, you can hear the sound of water leakage from the rod and the other end, so as to find out the position of the leakage point.
The test of PVC pipe fittings Water Leakage, I hope to help you check out the Water Leakage place.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.
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PPR pipes simple compilation of knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PPR pipes simple compilation of knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PPR pipes simple compilation of knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PPR pipes simple compilation of knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Machining knowledge of PVC pipe and pipe fittings--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Machining knowledge of PVC pipe and pipe fittings--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

The knowledge of sizing in the production of PVC pipe and pipe fittings

The knowledge of sizing in the production of PVC pipe and pipe fittings

In the production process of PVC tubing and pipe fittings, PVC pipe fittings, is due to the heat sensitive materials, even adding heat stabilizer can only be increase the decomposition temperature and increased the stability and impossible without decomposition, which requires the PVC to pipe processing temperature should be strictly controlled.
Tube blank of PVC pipe fittings is also very high temperature, in order to make the pipe to obtain a lower roughness, the correct size and geometry, when leaving the port die must be determined immediately and cooling. PVC tubing and pipe fittings are generally uses the internal pressure and external sizing method, the inner tube through compressed air to the outer surface of the pipe tightly contacted with the fixed sleeve diameter wall shape and keep a certain roundness, the general compression air pressure range in 0.02-0.05Mpa and pressure requirements stability, can set up a storage cylinder so that the compressed air pressure stable.
In addition, extrusion temperature should be determined according to the formula, the characteristics of the extruder, the nose structure, the screw speed, the temperature measuring point position, the temperature measuring instrument error and the temperature measuring point depth and so on.

Shijiazhuang Xing Yin import and export trading Co.,Ltd has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

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PE pipe manufacturers for you to introduce the advantages of PE pipe fittings

PE pipe manufacturers for you to introduce the advantages of PE pipe fittings
PE pipe is a kind of utility model patent products, high quality and low price, the following will be PE pipe fittings manufacturers to introduce it to us what is the advantage:
First, a locking hoop, ladder type annular seals and other components, in its internal scientific design, high fastness, good sealing performance. Second, the connection is convenient, easy to disassemble, flexible, easy to recycle, beautiful and practical. Third, complete specifications, divided from the type of straight, reducing straight, positive tee, tee reducer, 90 degree elbow, silk port connector, plug and so on. Fourth, in addition to connecting PE and other pipelines, but also can be used for U-PVC, steel pipe and other connections, the application is very wide.
Above is a simple introduction to the advantages of PE pipe, we welcome you to our company to negotiate business.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

 contact: david@pvcfittingssupplier.com

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PVC pipe fittings, rubber ring connection knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings, rubber ring connection knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

How to choose and buy:
UPVC drainage pipe fittings should mainly consider the following aspects:
1 appearance. Good fitting outer wall is smooth, no thorns, no color, clear edges and neat, thick wall, feel thick.
2 heat resistance (standard). Pipe fittings in 150 DEG C oven according to the corresponding wall thickness and drying time, see Table 2, does not appear serious skin, burst, little color changes, especially near the injection point and seam line should not appear to penetrate the cracks.
3 low temperature brittleness (Standard Test). The sample in the refrigerator at 0 centigrade degree placed 30min out immediately after in the cement on the ground free fall, the outer diameter is not greater than 75mm tube attached to fall height of 2m, greater than 75mm tube height of 1m, and see no cracks on the surface of the tube, the intact products prove its performance meets the requirements.
4 and the pipe connecting parts (called standard socket) the length or depth of long enough. Informal enterprises in the production of pipe fittings, in order to reduce costs, deliberately cut corners, bell and spigot are generally shorter, so later in the use of easy to make joint leakage. If considered from the security point of view, socket depth as long as possible, the user can compare or actual measurement. But from the economic point of view, the minimum value of the depth of the mouth is given in the standard.
5 pay attention to the matching between the pipe and the pipe. First application of tube try inserting tube several times, should feel not difficult, but after insertion nor too loose as well; secondly, we should buy matching PVC plastic adhesive to firm adhesion.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

 contact: david@pvcfittingssupplier.com

skype:  live:davidxingyin

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Advantages of PVC electrical pipe and steel pipe

Advantages of PVC electrical pipe and steel pipe
Steel pipe we all know what it is, and powerful PVC casing electrician is a joined with PVC flame retardant materials made of opaque white threading pipe, applicable to within the walls of threading, such as wires, audio cable, video cable, telephone lines and other. So compared with the steel pipe, what are the characteristics of it?
1, anti pressure is strong: PVC electrical casing can withstand strong pressure, can be bright or dark deposited in the concrete, do not worry about compression.
2, corrosion resistance, pest control: PVC bushing has corrosion resistance, while the tube does not contain plasticizers, therefore no pests.
3, flame retardant is good: PVC electrical casing on the flame burning away, can quickly self interest, can avoid the fire spread.
4, insulation performance is strong: PVC electrical casing can withstand high power and not be breakdown, can effectively avoid leakage, electric shock accident.
5, the construction is convenient: the quality of the PVC electric bushing is light, only the 1/5 of the steel tube; and easy to bend, insert a section of bending spring in the tube, can be bent at room temperature.
6, saving investment: compared with the steel tube, the cost of materials and construction and installation costs can be greatly reduced.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

 contact: david@pvcfittingssupplier.com

skype:  live:davidxingyin

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CPVC fittings water supply sch 80--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

CPVC fittings water supply sch 80--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings to change the quality of our lives--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings to change the quality of our lives--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

UPVC drainage pipe fittings should mainly consider the following aspects

How to choose and buy:
UPVC drainage pipe fittings should mainly consider the following aspects:
1 appearance. Good fitting outer wall is smooth, no thorns, no color, clear edges and neat, thick wall, feel thick.
2 heat resistance (standard). Pipe fittings in 150 DEG C oven according to the corresponding wall thickness and drying time, see Table 2, does not appear serious skin, burst, little color changes, especially near the injection point and seam line should not appear to penetrate the cracks.
3 low temperature brittleness (Standard Test). The sample in the refrigerator at 0 centigrade degree placed 30min out immediately after in the cement on the ground free fall, the outer diameter is not greater than 75mm tube attached to fall height of 2m, greater than 75mm tube height of 1m, and see no cracks on the surface of the tube, the intact products prove its performance meets the requirements.
4 and the pipe connecting parts (called standard socket) the length or depth of long enough. Informal enterprises in the production of pipe fittings, in order to reduce costs, deliberately cut corners, bell and spigot are generally shorter, so later in the use of easy to make joint leakage. If considered from the security point of view, socket depth as long as possible, the user can compare or actual measurement. But from the economic point of view, the minimum value of the depth of the mouth is given in the standard.
5 pay attention to the matching between the pipe and the pipe. First application of tube try inserting tube several times, should feel not difficult, but after insertion nor too loose as well; secondly, we should buy matching PVC plastic adhesive to firm adhesion.

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

 contact: david@pvcfittingssupplier.com

skype:  live:davidxingyin

www.pvcfittingssupplier.com

PVC pipe fittings installation and construction of matters needing attention--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings installation and construction of matters needing attention--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

The related properties of PVC fittings

PVC fittings is a PVC resin as the main raw material, to join the special auxiliary, through the extruder extrusion molding.
The pressure resistance performance of PVC pipe fittings is the main mechanical index, which is not only the mechanical and equipment factors, but also the raw materials and formulation factors. Such as extrusion screw and barrel clearance shoulds not be too big; feeding amount greater and greater compression ratio; design reasonable formula and corresponding reasonable process adjustment, plasticizing rate control in 60% - 70%.
Although PVC fittings, rigidity, cold crushing performance excellent, 20 DEG C pressure ring stress may be greater than 36Mpa, is currently appearing on the market building plastic water supply pipe in the amount of the largest, but the high temperature and pressure of very poor, it can only be used for 45 DEG C cold water or cold hot water pipeline system.

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PVC pipe and pvc fittings development countermeasures and suggestions
With the application of PVC pipe and pvc fittings production in China, pipe fittings market competition is intense, the need to increase the propaganda of the industry and product, expand the influence, positive introduction PVC-U pipes and lead salt stabilizer. China PVC pipe PVC pipe and pvc fittings industry should prepare early, active coping, establish conducive to environmental protection, put forward active commitment to all the PVC-U pipeline to ban lead, to strengthen the application of PVC-U pipeline user confidence.
Strengthen the PVC-U pipe scale, supporting the production, change some small scale of production, backward technology, low grade of products, quality is not stable, uneven regional development, unreasonable industrial structure situation..
To increase the promotion and application efforts, vigorously develop new markets. In various forms to promote the application of plastic pipe in the western region and small towns. At the same time, and actively explore the market application of plastic pipe in electric power, communication, railway, highway, industry, agriculture and other fields.
Strengthen technical training. Set up a professional training base, organize the preparation of teaching materials, plan on the production and construction personnel for technical training, strengthen the standard and specification of learning and publicizing.
Accelerate the development and production of special resin for plastic pipeline, and fundamentally reverse the situation of production and supply and demand imbalance of special resin

Shijiazhuang Xing Yin import and export trading Co.,Ltd  has become one of the leading international supplier and manufacturers of PVC fittings,Welcome to consult and purchase.

 contact: david@pvcfittingssupplier.com

skype:  live:davidxingyin

www.pvcfittingssupplier.com

PVC pipe fittings knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

PVC pipe fittings knowledge--Pvc fittings and pipe supplier and manufacturer - A best pvc fittings supplier and manufacturer in china

Shijiazhuang Xing Yin import and export trading
Co.,Ltd  has become one of the leading international supplier and
manufacturers of PVC fittings,Welcome to consult and purchase.

 contact:
david@pvcfittingssupplier.com

skype:  live:davidxingyin

www.pvcfittingssupplier.com