墙板定型的工艺过程及注意事项 The process of forming the wall panel and the attention matters 首先是木塑墙板的定型与冷却。墙板在挤出机头口模后应立即进行冷却定型处理，防止型材因自身重力作用下而出现的变形、凹陷或扭曲现象。一般情形下，定型和冷却需要同时进行，挤出板材与片材。空心型材的定型还需配有真空定型装置，保证制品有精确的结构尺寸，对于生态木含量较大或厚度较薄的木塑制品和木质纤维含量少或厚度相对较大的生态木制品采用水冷却。 First of all, wood and plastic wall panels are set and cooled. The wall panel should be processed immediately after extruding the head of the machine, preventing the deformation, sag or distortion of the shape due to its own gravity. Normally, the design and cooling need to be done simultaneously, extruding the plank and the sheet. Hollow profile shape will need to be equipped with vacuum calibrating device, to ensure that the products have precise structure, size and for larger ecological wood content or thickness of thin wood plastic products and wooden fiber content or less thickness is relatively large ecological wood with water cooling. 然后是木塑墙板的牵引和切割。通常木塑复合材料在挤出口模后，会由于压力突然解除而发生离模膨胀现象，而冷却后又发生收缩现象，其离模膨胀和收缩作用在一定程度上比塑料制品作用小很多。因此对于生态木实心板材如不需要采用真空定型，则需要较小的牵引力，基本上靠螺杆挤出。牵引速度要与挤出速度相适应，一般是牵引速度稍大于挤出速度，以便消除塑件尺寸的变化，同时对制件进行适当的拉伸可提高产品性能，挤出的制品，根据实际需要的长度和规格进行切割，随后堆放及入库等。 Then it is the traction and cutting of wood and plastic wall panels. Usually after wood plastic composite extrusion die mold, may occur due to pressure suddenly lifted from inflation, and after cooling shrinkage occurs, the mode expansion and contraction than plastic products to a certain extent the role. Therefore, for the eco-wood material, such as no need to adopt a vacuum, it will require a smaller traction force, which is basically extruded by a screw. Drawing speed should be compatible with the extrusion speed, usually slightly greater than the extrusion speed, drawing speed in order to eliminate the dimension of plastic parts, at the same time on the proper stretching the product can improve product performance, extrusion products, according to the actual needs and specifications for the length of the cut, then pile up and put in storage, etc.