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Exposed post-wire distribution type electric welding pipe fitting

A technology for electrofusion pipe fittings and wire cloth, which is applied in the direction of pipes/pipe joints/pipe fittings, pipeline connection layout, mechanical equipment, etc. The effect of increased distribution density, enhanced binding force, and increased fluidity

Inactive Publication Date: 2019-08-02
NINGBO HENGYUAN PRECISION VALVES TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to meet the above requirements, most of the existing electrofusion pipe fittings are made of PE (polyethylene) material, but this type of electrofusion pipe fittings has poor strength, cannot bear heavy pressure, is flammable and fragile, not heat-resistant, not aging-resistant, and has a long service life. short

Method used

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  • Exposed post-wire distribution type electric welding pipe fitting
  • Exposed post-wire distribution type electric welding pipe fitting
  • Exposed post-wire distribution type electric welding pipe fitting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] see figure 1 , a bare cloth wire electrofusion pipe fitting, comprising a pipe body 1, a heating wire 2 arranged on the inner wall of the pipe body 1, an observation hole 3 exposed from the pipe body 1 and located at both ends of the pipe body 1, and a terminal 4, each electrofusion Both ends of the pipe are provided with observation holes 3 and terminal 4, the terminal 4 is provided with a terminal 5, the terminal 5 is connected to the heating wire 2, and the pipe body 1 is provided with a non-conductor along the axial direction. A closed wire embedding groove 6, the heating wire 2 is clamped in the wire embedding groove 6, and a ring groove is opened in the inner middle part of the tube body 1, and the limit ring 8 is clamped in the ring groove.

[0030] Among them, the pipe body 1 is mainly made of the following raw materials in parts by weight: 90 parts of PE100 grade raw materials, 30 parts of PE high-pressure recycled materials, 2 parts of antioxidant diphenylamin...

Embodiment 2

[0036] see figure 1 , a bare cloth wire electrofusion pipe fitting, comprising a pipe body 1, a heating wire 2 arranged on the inner wall of the pipe body 1, an observation hole 3 exposed from the pipe body 1 and located at both ends of the pipe body 1, and a terminal 4, each electrofusion Both ends of the pipe are provided with observation holes 3 and terminal 4, the terminal 4 is provided with a terminal 5, the terminal 5 is connected with the heating wire 2, and the pipe body 1 is provided with a non-conductor along the axial direction. A closed wire embedding groove 6, the heating wire 2 is clamped in the wire embedding groove 6, and a ring groove is opened in the inner middle part of the tube body 1, and the limit ring 8 is clamped in the ring groove.

[0037]Wherein, the pipe body 1 is mainly made of the following raw materials in parts by weight: 120 parts of PE100 grade raw materials, 45 parts of PE high-pressure recycled materials, 4 parts of antioxidant p-phenylenedi...

Embodiment 3

[0043] see figure 1 , a bare cloth wire electrofusion pipe fitting, comprising a pipe body 1, a heating wire 2 arranged on the inner wall of the pipe body 1, an observation hole 3 exposed from the pipe body 1 and located at both ends of the pipe body 1, and a terminal 4, each electrofusion Both ends of the pipe are provided with observation holes 3 and terminal 4, the terminal 4 is provided with a terminal 5, the terminal 5 is connected to the heating wire 2, and the pipe body 1 is provided with a non-conductor along the axial direction. A closed wire embedding groove 6, the heating wire 2 is clamped in the wire embedding groove 6, and a ring groove is opened in the inner middle part of the tube body 1, and the limit ring 8 is clamped in the ring groove.

[0044] Wherein, the pipe body 1 is mainly made of the following raw materials in parts by weight: 100 parts of PE100 grade raw materials, 35 parts of PE high-pressure recycled materials, 3 parts of antioxidant dihydroquinoli...

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Abstract

An exposed post-wire distribution type electric welding pipe fitting comprises a pipe body, electric heating wires arranged on the inner wall of the pipe body as well as observation holes and terminals which are exposed out of the pipe body and located at two ends of the pipe body, binding posts are arranged in the terminals and connected with the electric heating wires, non-closed wire embeddinggrooves are axially formed in the pipe body, and the electric heating wires are clamped in the wire embedding grooves. The pipe fitting is prepared from raw materials in parts by weight as follows: 90-120 parts of a PE100 grade raw material, 30-45 parts of PE high-pressure reclaimed material, 2-4 parts of an antioxidant, 1.5-3 parts of a dispersant, 5-10 parts of mullite powder, 3-10 parts of glass beads, 10-25 parts of EPDM (ethylene-propylene-diene monomer) rubber, 10-15 parts of modified diatomite, 20-35 parts of a heat stabilizer, 20-30 parts of a heat-resistant modifier, 0.5-1.5 parts ofEVA wax, 4-6 parts of dicumyl peroxide, 0.02-0.2 parts of a crosslinking agent TAIC, 2-3 parts of full-vulcanized superfine powder nitrile rubber, 0.5-1.5 parts of full-vulcanized superfine powder natural rubber, 5-10 parts of a halogen-free flame retardant and 1-5 parts of a colorant.

Description

technical field [0001] The invention relates to the technical field of plastic pipe fittings, more specifically, it relates to an exposed cloth wire electrofusion pipe fitting. Background technique [0002] The construction of engineering plastic pipes usually uses electrofusion technology, which converts electrical energy into heat energy through heating with electric heating wires, so that the inner wall of the plastic pipe fittings and the outer wall of the pipe are fused together at high temperature to form a whole. [0003] Chinese Patent No. ZL200820050218.8 discloses a rapid electrofusion pipe fitting, including pipes, pipe sections, electrofusion joints, electric heating wires, limit rings and safety devices. The inner wall of the plastic pipe section is provided with electric heating wires, and the outer wall of the pipe section is provided with electrofusion joints. The heating wire is connected with the electric fusion welding machine through the electric fusion j...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/16C08L9/02C08L7/00C08K13/06C08K9/10C08K9/04C08K7/26C08K3/34C08K3/38C08K3/32C08K3/22C08K5/14C08K5/3477F16L47/03
CPCC08K2003/222C08K2003/323C08K2003/387C08L23/06C08L2201/02C08L2205/025C08L2205/035C08L2207/20F16L47/03C08L23/16C08L9/02C08L7/00C08K13/06C08K9/10C08K9/04C08K7/26C08K3/34C08K3/38C08K3/32C08K3/22C08K5/14C08K5/3477
Inventor 童津金
Owner NINGBO HENGYUAN PRECISION VALVES TECH
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