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Ultra high molecular weight polyethylene board: high density polyethylene board need to pay attention to what details

2020-03-17

Application of polyethylene sheet, pay attention to what key points, you have mastered the characteristics of polyethylene plastic sheet? If you do not grasp its characteristics then you no doubt in the application of the whole process is not easy so smooth, the following people will be polyethylene board manufacturers of staff, the actual detailed introduction of it: polyethylene plastic sheet, a shallow side groove, can be forced demoulding. to answer for everyone.

Recommended high density polyethylene board need to pay attention to what details:

The heating time of high-density polyethylene board should not be too long, otherwise it will decompose and burn. High density polyethylene board may melt rupture, should not be in contact with organic solvents to prevent cracking. The shrinkage range and shrinkage value of high-density polyethylene board are large, the direction is obvious, and it is easy to deform and warp. The cooling speed should be slow, and the mold is provided with a cold material cavity and a cooling system.

High density polyethylene board crystalline material, moisture absorption is small, do not need to be fully dry, good fluidity, liquidity is sensitive to pressure, molding should be injected with high pressure, uniform material temperature, filling speed, full pressure. Direct gate should not be used to prevent uneven shrinkage and increased internal stress. Pay attention to select the gate location to prevent shrinkage and deformation.

Key words:

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Excellent properties of wear-resistant polyethylene sheet