Nonmetal filling medium for producing piping branch junctions and technique for squeezing the piping branch junctions

A technology of filling medium and manufacturing process, applied in metal extrusion forming tools, metal extrusion, manufacturing tools, etc., can solve the problems of lead pollution, high production cost, slow work efficiency, etc., achieve obvious technical advantages, avoid pollution, Efficient effect

Inactive Publication Date: 2008-10-22
佛山市南海飞鹏塑胶金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the known extrusion technologies, the lead-filled extrusion tee has the best geometric dimensions and the lowest cost, but there is a problem of lead pollution; the length of the oil-filled (or water)-extruded third-way is obviously insufficient (especially φ9. Thin-walled small tees with specifications below 53), it is difficult to reach the length of lead-filled extrusion and the work efficiency is slow, so the current technology is still the most wide

Method used

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  • Nonmetal filling medium for producing piping branch junctions and technique for squeezing the piping branch junctions
  • Nonmetal filling medium for producing piping branch junctions and technique for squeezing the piping branch junctions
  • Nonmetal filling medium for producing piping branch junctions and technique for squeezing the piping branch junctions

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Effect test

Embodiment 1

[0026] See attached figure 1 As shown, the main manufacturing process of T-shaped pipes (such as: outer diameter φ25.4) is: blanking → straight-through pipe filling with powder medium → cold extrusion → removing the filled powder medium → pickling → drying → packaging; Its non-metallic filling powder medium is composed of talc powder H 2 Mg 3 (sio 3 ) 4 and industrial salt NaCl two powders, which can be uniformly mixed according to the mass ratio of 25% and 75% respectively.

Embodiment 2

[0028] See attached Figure 4 As shown, the main manufacturing process of the trident tube (such as: outer diameter φ7) is: blanking→straight-through tube filling with powder medium→cold extrusion→annealing→mechanical forming→removing the filled powder medium→pickling→drying→ Packaging; its non-metallic filled powder medium consists of talc H 2 Mg 3 (sio 3 ) 4 , industrial salt NaCl and urea (NH 2 ) 2 The three powders of CO are composed of three kinds of powders, and they are uniformly mixed according to the mass ratio of 20%, 60% and 20%, respectively.

Embodiment 3

[0030] See attached Figure 6 As shown, the main manufacturing process of the four-way pipe (such as: outer diameter φ7.94) is: blanking → straight pipe filling with powder medium → cold extrusion → removing the filled powder medium → pickling → drying → packaging; Its non-metallic filling powder medium is composed of talc powder H 2 Mg 3 (sio 3 ) 4 It consists of two powders of industrial salt NaCl and can be uniformly mixed according to the mass ratio of 15% and 85% respectively.

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Abstract

The invention relates to a non-metal filling medium used for fabricating a three-way pipeline and a process for extruding the three-way pipeline. The filling medium is a non-metal power material which is uniformly mixed and consists of three powders: talcum powders H2Mg3(sio3)4, industrial salts NaCl and urease (NH4)2CO; the three powders are uniformly mixed respectively according to the mass proportion of 5-25%, 95-50% and 0-25%. The extrusion material range of the three-way pipeline of the invention is multiple high-plastic materials such as copper, iron, low carbon steel and cold extrusion stainless steel, etc.; therefore, the three-way pipeline can extrude and fabricate copper three-way pipeline, iron three-way pipeline, low carbon steel three-way pipeline and stainless steel three-way pipeline, etc. The non-metal filling medium and the process of the invention have obvious technical advantages of meeting the instruction requirement which is issued by European, Japan, etc. and contains that lead is not allowed to be added in the three-way pipeline production process, thereby completely avoiding the pollution of heavy metals such as lead, etc., having lower cost than the lead-pouring extrusion, having longer length and higher working efficiency than the oil (water) injection extrusion, and enlarging the ranging of extrusion material to the fields of multiple high-plastic material such as copper, iron, low carbon steel and stainless, etc.

Description

Technical field: [0001] The invention relates to a non-metallic filling medium for manufacturing pipeline tee fittings and a manufacturing process for extruding the tee with it, which can produce important pipeline fittings such as copper tees, steel tees and stainless steel tees, and can be widely used in refrigeration In the pipeline engineering system of industry, construction industry and chemical and food industries. Background technique: [0002] Tee is an important pipe fitting in pipeline engineering. It has been highly concerned by many manufacturers because of its wide application and wide range of industries. The manufacturing patents caused by tee are also particularly numerous; the technical methods are roughly divided into cold extrusion and hot extrusion. Two categories, of which the low-cost cold extrusion technology develops the fastest (hot extrusion develops slowly and is partially eliminated, so I won’t go into details here), and lead filling extrusion is...

Claims

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Application Information

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IPC IPC(8): B21C23/12B21C25/00
Inventor 甘应雷李顺安王正奇
Owner 佛山市南海飞鹏塑胶金属有限公司
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