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PVC profile manufacturers talk about the causes of cracks
2020-12-17 320
PVC profile bubble. Cracks and pockmarks (1) the main reasons for the above are as follows: 1) the moisture and volatile substances contained in various materials are seriously overspended, and can not be fully swept out in the extrusion mixing process, and the volatiles are still retained in the material, and bubbles, cracks and pockmarks will appear inside or outside the profile after heating. Once this kind of phenomenon appears in production, the influence of raw materials should be eliminat
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Let PVC profile manufacturer answer profile and profile for you
2020-12-17 366
Can you distinguish PVC profiles from profiles? I believe that many people or people who have just come into contact with aluminum profiles are always confused about profile and profile, and can't make out the difference between the two. Today, Xiaobian explained the difference between the two profiles to the silly friends. Extrudate: it is an object with certain geometric shape made of iron or steel and materials with certain strength and durability (such as plastic, aluminum, glass fiber, etc.
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PVC profile manufacturers tell you the choice of formula
2020-12-17 317
In the production of SG-5 resin with low polymerization degree, the selection and formulation of PVC materials should be selected. The higher the degree of polymerization, the better the physical and mechanical properties and heat resistance. However, the poor fluidity of the resin leads to certain difficulties in processing. Therefore, SG-5 resin with viscosity of (1.7 ~ 1.8) × 10-3 Pa? S should be selected. Lead stabilizer is generally used for hard tube, which has good thermal stability and i
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Application and maintenance of plastic profile
2020-12-17 321
Application and maintenance: 1. Check the plastic profile extrusion mold after arrival, open the box to check, the package is intact: after unpacking, take out the packing list, use the manual and other skills documents, organize and count the whole mold, accessories and special tools according to the contents of the packing list. 2. Half skill requirements and status of plastic profile extrusion die, especially when the extrusion material is modified polyethylene, its molding parts are generall
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This paper introduces the manufacturers and uses of plastic profiles
2020-12-17 364
Introduction to plastic profiles: plastic profiles are listed as one of the building materials in China due to their excellent thermal insulation performance. In the production process of plastic profile, what problems should be paid attention to to to ensure the quality and process of profile. Application of plastic profile: plastic profile products are widely used: window frame, stair handrail, raceway, skirting board, special-shaped pipe, etc. The raw materials are mainly hard PVC, a few are
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Material advantages of plastic profile manufacturers
2020-12-17 351
Advantages of plastic profiles: 1. Thermal stabilizers: plastic profiles are thermosensitive plastics, so in the production and processing of plastic profiles, thermal stabilizers are essential. The metal salt in the thermal stability agent can absorb HCl decomposed from PVC, so it can delay the decomposition speed of plastics and extend the decomposition time. Compound lead salts are used in the production of plastic profiles, which have high thermal stability efficiency and low price. 2. Lubri
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Plastic profile manufacturers talk about crystallization reasons
2020-12-17 326
Plastic profile is a very common product in our production. Let's talk about the reasons that affect the crystallization of thermoplastic plastics. 1. According to the phenomenon of no crystallization when it condenses, thermoplastic plastics can be divided into crystalline plastics and amorphous (also known as amorphous) plastics. The so-called crystallization phenomenon refers to the phenomenon that the molecules move independently and are completely in a disordered state from the melting stat