Analysis Of The Production Knowledge Of Ultra-High Molecular Weight Polyethylene Sheets

Under the introduction of the relevant professional and technical articles, it can be understood that the ultra-high molecular weight polyethylene sheet is mainly produced with two high-pressure liquid phase process, in order to further promote the user's understanding of its basic production knowledge is introduced as follows:

1, crystalline material, moisture absorption is small, do not have to fully dry, excellent mobility fluidity is sensitive to pressure, moulding is appropriate to use high-pressure injection, material temperature uniformity, filling speed, holding pressure is sufficient, should not be used with direct sprues, in order to prevent uneven contraction, increased internal stress, pay attention to the selection of the location of the sprue, to prevent the production of shrinkage holes and deformation.

2、Shrinkage range and shrinkage value is large, the direction is obvious, easy to deformation and warping, cooling speed should be slow, the mould is set up with cold material cavity and cooling system.

3、Heating time should not be too long, otherwise decomposition will occur, burns.

4、Soft plastic parts with shallow side grooves can be forced to demould.

5、Melt rupture may occur, should not contact with organic solvents to prevent cracking.

The above points are our basic production knowledge of its ultra-high molecular weight polyethylene sheet introduction, if you have other questions or do not understand its narrative, you can directly consult our professional staff, we will do a good job for you to respond to the work of satisfaction.