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PVC tubing production technology

A PVC pipe material and production process technology, which is applied in the direction of tubular objects, applications, household appliances, etc., can solve the problems of uneven quality of PVC pipe material and affect the use, and achieve the effect of standardized production process, guaranteed quality, and less waste

Inactive Publication Date: 2018-12-14
四川省海维塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are various production processes for PVC pipes on the market now, and the quality of the produced PVC pipes is also uneven, which seriously affects the later use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The PVC pipe material production technology that present embodiment provides comprises the following steps:

[0021] (1) Ingredients, choose 110 parts by weight of PVC resin, 10 parts of tungsten carbide, 12 parts of calcium carbonate, 1 part of stearic acid, 7 parts of stabilizer, 6 parts of lubricant, 4 parts of plasticizer, filler 3 parts, 1 part of antioxidant and 1 part of antistatic agent;

[0022] (2) Mixing, put PVC resin into a high-speed mixer for hot mixing, put in tungsten carbide and calcium carbonate when the temperature reaches 60-80°C, and put in stearic acid, stabilizer, Lubricants, plasticizers, fillers, antioxidants and antistatic agents, after hot mixing for 1-2 minutes, slowly and uniformly cool down to 30-40°C to obtain a mixed material;

[0023] (3) Extrusion, put the mixed material into the extruder for extrusion, wherein the temperature distribution of the barrel of the extruder is set in a saddle shape according to the direction of material mo...

Embodiment 2

[0029] This embodiment is basically the same as Example 1, except that the composition ratio of the ingredients in the step (1) and the composition ratio of the wear-resistant layer in the step (5) have been changed, and the ingredients in the step (1) are selected The following components by weight: 100 parts of PVC resin, 8 parts of tungsten carbide, 10 parts of calcium carbonate, 1 part of stearic acid, 3 parts of stabilizer, 3 parts of lubricant, 3 parts of plasticizer, 1 part of filler , 0.5 part of antioxidant and 0.5 part of antistatic agent; Wear-resistant layer selects the following components by weight in the described step (5): 25 parts of polypropylene, 10 parts of polyethylene, 2 parts of zinc stearate, graphene 1 part and 3 parts N-phenylbenzamide.

Embodiment 3

[0031] This embodiment is basically the same as Example 1, except that the composition ratio of the ingredients in the step (1) and the composition ratio of the wear-resistant layer in the step (5) have been changed, and the ingredients in the step (1) are selected The following components by weight: 130 parts of PVC resin, 12 parts of tungsten carbide, 15 parts of calcium carbonate, 3 parts of stearic acid, 8 parts of stabilizer, 7 parts of lubricant, 5 parts of plasticizer, and 5 parts of filler , 1.5 parts of antioxidant and 1.5 parts of antistatic agent; Wear-resistant layer in described step (5) selects the following components by weight: 30 parts of polypropylene, 15 parts of polyethylene, 5 parts of zinc stearate, graphene 2 parts and 6 parts of N-phenylbenzamide.

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Abstract

The invention discloses a PVC tubing production technology. The PVC tubing production technology comprises the following steps: (1) compounding; (2) mixing, putting PVC resin into a high-speed mixer for hot mixing, and inputting tungsten carbide, calcium carbonate, stearic acid, a stabilizer, a lubricant, a plasticizing agent, a filler, an antioxidant and an antistatic agent according to temperature change; (3) extrusion; (4) fixed cooling, fixing an extruded PVC pipe and cooling the PVC pipe under vacuum by a vacuum fixed cooling machine to obtain a base pipe; (5) preparing of a wear-resistant layer; (6) hot pressing, uniformly coating the obtained wear-resistant layer on the outer surface of the obtained base pipe to obtain the finished PVC tubing; and (7) tubing traction and cutting, performing traction on the finished PVC tubing to a cutting machine for cutting. The production process is standard, has the advantages of low production cost and less waste, and can ensure the qualityof the produced product, and the product has good wear resistance.

Description

technical field [0001] The invention belongs to the technical field of PVC pipe production, and in particular relates to a PVC pipe production process. Background technique [0002] PVC pipes are widely used in the market. Compared with traditional metal pipes and cement pipes, the finished PVC pipes after production have lower density, easy coloring, corrosion resistance, lower heat loss, good insulation performance, and flow resistance. It has the advantages of small size, no fouling on the inner wall, convenient installation and maintenance, etc. [0003] However, there are various production processes for PVC pipes on the market, and the quality of the produced PVC pipes is also uneven, which seriously affects the later use. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a PVC pipe production process for the above-mentioned deficiencies in the prior art. The production process is standardized, the productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K3/14C08K3/26C08K5/09C08L23/12C08L23/06C08K5/098C08K3/04C08K5/20B29D23/00
CPCB29D23/001C08K3/14C08K3/26C08K5/09C08K2003/265C08L23/12C08L2203/18C08L27/06C08L23/06C08K5/098C08K3/04C08K5/20
Inventor 宋亮才郑本祥
Owner 四川省海维塑胶有限公司