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Electric smelting steel frame pipe joint and making method thereof

A technology of steel skeleton and pipe joints, applied in the direction of pipes/pipe joints/fittings, pipe connection layout, mechanical equipment, etc., can solve the problems of positioning nails corrosion prevention, etc., to ensure integrity, reduce product costs, and improve corrosion resistance effect of ability

Inactive Publication Date: 2005-01-12
HUACHUANG TIANYUAN IND DEVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the positioning problem of the steel skeleton, at present, the electro-fused steel skeleton pipe joints generally use positioning nails on the steel skeleton, but this brings about the corrosion prevention problem of the positioning nails

Method used

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  • Electric smelting steel frame pipe joint and making method thereof
  • Electric smelting steel frame pipe joint and making method thereof
  • Electric smelting steel frame pipe joint and making method thereof

Examples

Experimental program
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Embodiment Construction

[0017] see figure 1 , figure 2 with image 3 , the electric fusion steel framework pipe joint of the present invention comprises a plastic cladding layer 2 and a steel framework 1, and at least four plastic block gaskets 4 are installed on the inner wall of the steel framework 1.

[0018] There are several circular holes 3 and a threaded hole 8 evenly distributed on the steel frame. The plastic block liner 4 that is installed on the steel skeleton 1, its quantity is determined according to the size of pipe diameter. Generally, the minimum diameter of the pipe is 50mm, and the number of plastic block liners is 4. If the pipe diameter is 500mm, the number of plastic block liners can reach 50 or more. to make sure. Said plastic block liner 4 is arranged symmetrically with respect to the diameter of the pipe connection passing through the threaded hole 8 .

[0019] see Figure 4 , the plastic block pad 4 has a base plate 5 and a circular platform 6 integrally connected with...

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PUM

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Abstract

The present invention relates to an electrocast steel skeleton pipe coupling and its production method. Said pipe coupling includes plastic covering layer and steel skeleton, on the steel skeleton at least four plastic block liners are mounted. The described production method includes the following steps: making steel skeleton, connecting positioning pin with threaded hole of steel skeleton by means of screw thread, mounting the plastic block liner into the hole of the steel skeleton, then press-injecting plastic covering layer, after formed, screwing thep ositioning pin off, using plastic welding gun to repair the hole formed by removing positioning pin firmly and planishing so as to obtain the invented pipe coupling with raised anticorrosion property.

Description

technical field [0001] The present invention relates to a pipe joint and its manufacturing method, in particular to an electric fusion steel framework pipe joint for connecting plastic pipes and its manufacturing method. Background technique [0002] Generally speaking, the joints of steel skeleton plastic composite pipes adopt electrofusion pipe joints. In order to maintain the same properties as the pipes in terms of tensile strength and shear strength, the steel skeleton is also used for the electrofusion pipe joints connecting the steel skeleton plastic composite pipes. In order to solve the positioning problem of the steel skeleton, at present, the electric fusion steel skeleton pipe joint generally adopts positioning nails on the steel skeleton, but this brings about the corrosion prevention problem of the positioning nails. The positioning nails exposed on the surface of the electrofusion product need to be polished, repaired and clad, which prolongs the production c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L47/02
Inventor 连军
Owner HUACHUANG TIANYUAN IND DEVING