Vacuum pipe vacuum sizing sleeve setting zone basically vacuum chamber structure, the position near the entrance width is relatively small, usually 1 ~ 1.5mm, and the arrangement was more intensive, because this time the beginning of the cooling tube, high temperature, relatively soft, if the groove width is too large will sucked into the tube surface which affect the appearance. As the tube is gradually cooled to harden, width can be increased to 3 ~ 4mm, slot spacing can be increased. Vacuum tank cooling effect is better than the vacuum holes, because the water forms a film sizing sleeve through these slots to help slide the pipe sizing and cooling jacket enables cooling area increases. Therefore, the structure is good or bad vacuum forming region directly affect the cooling effect of the sizing sleeve, pipe sizing sleeve during this length, you must harden the outer surface of the tube when the tube leaving the sizing sleeve, wall hardening depth must enough to support the weight of the tube, not deformed or broken, otherwise it will affect the dimensional accuracy of the tube. While also improve sizing sleeve length to increase the cooling effect, but there is the difficulty of processing, high production cost, convenient operation, caused by excessive friction sizing sleeve manufacturers, increase the traction power calibration sleeve suppliers, the tube will produce internal stress, reduce the tube surface finish. Therefore, the sizing sleeve length should be appropriate, generally about 10 to 12 times the inner diameter. Sizing sleeve suitably good thermal conductivity metal, pipe sizing sleeve at home and abroad are working with a wear-resistant copper alloys. Two, PE tube die Specification: ф10-630 mold type; stent, spiral, blue type, co-extruded composite mold. Scope: water pipes, gas pipes, corrosion pipe insulation, heat pipes, three jacket pipe, PVC pipe mold Specification: ф10-630 PVC foam pipe spiral mold 50-160 (a machine). Replacing mouthpiece can produce bubble inner spiral mandrel, solid wall inside spiral tube, solid wall pipe, foam tubes. Price sizing sizing sleeve _ _ days Nobuyasu provided by Qingdao days Nobuyasu Plastic Machinery Co., Qingdao day letter Thai Plastic Machinery Co., Ltd. (www.qdtianxintai.com) (www.txt-extruder.com) strong, credible, in Qingdao, Shandong granulator industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Tition Taihe you hand into the brilliant, for a better future!