?The physical properties of PVC particles
PVC particles are parent material PVC plastic molding (raw material),
In the actual forming time need to join the other auxiliary materials.
PVC (polyvinyl chloride) of chemical and physical properties of rigid PVC is used
One of the most widely used plastic materials. PVC material is a kind of non node
Crystalline material. PVC materials often join in practical use
Stabilizer, lubricant, auxiliary processing agent, pigment, impact
Hammer agent and other additives. PVC material is non combustible,
High strength, excellent resistance to climate variability and geometric stability.
PVC had strong resistance to oxidant, reductant and acid.
However, it can be strong oxidizing acids such as sulfuric acid, concentrated nitric acid the rot
Corrosion and does not apply and aromatic hydrocarbons, chlorinated hydrocarbons in contact situations.
PVC melting at the processing temperature is a very important process parameters, if this parameter will lead to improper material decomposition problem. The flow characteristics of PVC is rather poor, the process is very narrow. Especially the high molecular weight PVC material is more difficult to process (this material is often added into lubricant improved flow characteristics), we usually use are small molecular weight PVC material. PVC contraction rate is very low, typically 0.2~0.6%.
Injection molding processing conditions
Drying: usually does not require drying.
The melting temperature of mold temperature: 20~50C: 185~205C
Injection pressure: can be up to 1500bar
Holding pressure: can be up to 1000bar
Injection speed: in order to avoid material degradation, the general use of the injection speed is.
The runner and gate: all conventional gate can be used. If the processing of smaller components,
It is best to use the tip type gate or sneak into the gate; for the thicker parts,
It is best to use the fan gate. Needle type gate or sneak into the gate of the minimum
Diameter should be 1mm; fan gate thickness not less than 1mm.
Typical use water supply pipeline, domestic pipeline, the housing wall,
Commercial housing for machine, electronic products, medical equipment, food packaging.
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