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Compound metal three-way pipe fitting and preparation method thereof

A technology of three-way pipe fittings and composite metal is applied in the field of composite metal three-way pipe fittings and its preparation, and can solve the problems of cracking, delamination, and difficulty in forming.

Inactive Publication Date: 2019-01-01
江苏亿超环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the bimetal tee pipe fittings are cold formed, due to the differences in the strength, hardness, structural state, melting point, expansion coefficient, and thermal conductivity of the two materials in the bimetallic pipe, it is required that the deformation speed of the pressure processing and the heat treatment system are also different. The same, so forming is very difficult, and defects such as cracking and even delamination often occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A composite metal tee pipe fitting, the raw materials include in parts by weight: 40 parts of titanium, 45 parts of aluminum, 0.5 parts of manganese, 1 part of nickel, 0.5 parts of chromium, 0.5-1 part of niobium, 1 part of zinc, 0.5 parts of nitrogen, magnesium 1 part, 0.1 part of lanthanum boride, 0.05 part of deoxidizer, and 0.1 part of recarburizer.

[0019] The preparation method of the above-mentioned composite metal tee pipe fitting comprises the following steps:

[0020] Step 1. Add titanium, aluminum, manganese, nickel, chromium, niobium, zinc, nitrogen, magnesium, lanthanum boride, deoxidizer and recarburizer into the melting furnace. The melting temperature is 800°C and the melting time is 2 hours. After high-temperature melting, the metal mixture is obtained;

[0021] Step 2, passing nitrogen gas into the metal mixture for refining and degassing, and casting the refined metal mixture into plates;

[0022] Step 3, cutting and blanking the obtained plate, ro...

Embodiment 2

[0028] A composite metal tee pipe fitting, the raw materials include in parts by weight: 48 parts of titanium, 47 parts of aluminum, 0.8 parts of manganese, 1.4 parts of nickel, 0.7 parts of chromium, 0.8 parts of niobium, 1.4 parts of zinc, 0.8 parts of nitrogen, and 1.4 parts of magnesium , 0.3 parts of lanthanum boride, 0.08 parts of deoxidizer, and 0.2 parts of recarburizer.

[0029] The preparation method of the above-mentioned composite metal tee pipe fitting comprises the following steps:

[0030] Step 1. Add titanium, aluminum, manganese, nickel, chromium, niobium, zinc, nitrogen, magnesium, lanthanum boride, deoxidizer and recarburizer into the melting furnace. The melting temperature is 850°C and the melting time is 2 hours. After high-temperature melting, the metal mixture is obtained;

[0031] Step 2, passing nitrogen gas into the metal mixture for refining and degassing, and casting the refined metal mixture into plates;

[0032] Step 3, cutting and blanking the...

Embodiment 3

[0038] A composite metal tee pipe fitting, the raw materials include in parts by weight: 55 parts of titanium, 50 parts of aluminum, 1 part of manganese, 2 parts of nickel, 1 part of chromium, 1 part of niobium, 2 parts of zinc, 1 part of nitrogen, and 2 parts of magnesium , 0.5 parts of lanthanum boride, 0.1 parts of deoxidizer, and 0.3 parts of recarburizer.

[0039] The preparation method of the above-mentioned composite metal tee pipe fitting comprises the following steps:

[0040] Step 1, adding titanium, aluminum, manganese, nickel, chromium, niobium, zinc, nitrogen, magnesium, lanthanum boride, deoxidizer and recarburizer into the melting furnace, the melting temperature is 900°C, and the melting time is 1h. After high-temperature melting, the metal mixture is obtained;

[0041] Step 2, passing nitrogen gas into the metal mixture for refining and degassing, and casting the refined metal mixture into plates;

[0042] Step 3, cutting and blanking the obtained plate, rol...

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PUM

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Abstract

The invention discloses a compound metal three-way pipe fitting and a preparation method thereof. Raw materials of the pipe include titanium, aluminium, manganese, nickel, chromium, niobium, zinc, nitrogen, magnesium, lanthanum boride, a desoxidant and a carburant. The preparation method of the compound metal three-way pipe fitting comprises the steps that firstly, after the raw materials are molten in high temperature, metal mixed liquid is prepared, after refining is conducted, casting is conducted to prepare a plate, then the plate is cut, rolled and welded to manufacture a three-way pipe blank, and after the three-way pipe blank is subjected to annealing, coping, acid pickling and polishing, the three-way pipe is obtained. By means of the preparation method of the compound metal three-way pipe, the metal three-way processing difficulty caused by difference in strength, hardness, texture, melting points, expansion coefficients and heat conductivity coefficients of titanium and aluminium are effectively resolved, and the height and wall thickness reduction rates of branch pipes of the prepared three-way pipe meet the requirements of GB / T12459-2005 steel butt-welding seamless pipefittings respectively.

Description

technical field [0001] The invention belongs to the technical field of metal pipe fittings, and in particular relates to a composite metal tee pipe fitting and a preparation method thereof. Background technique [0002] A pipe joint with three openings is called a tee. Tee pipes are widely used in pipe networks for conveying liquids and gases. The tee can be divided into metal material and non-metal material according to the material: the metal tee has carbon steel, stainless steel, alloy steel, etc., and the non-metal tee has PVC, UPVC, PPR, etc. [0003] In practical engineering applications, pipe fittings are an important part of the pipeline system, and composite metal tee pipe fittings are a special type of pipe fittings, which play an important role in key parts of the pipeline system. However, when the bimetal tee pipe fittings are cold formed, due to the differences in the strength, hardness, structural state, melting point, expansion coefficient, and thermal con...

Claims

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Application Information

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IPC IPC(8): C22C30/06C22C1/02C22C1/06C22C1/10C22F1/02C22F1/18C22F1/04
CPCC22C1/06C22C1/1036C22C14/00C22C21/003C22C30/06C22F1/02C22F1/04C22F1/183C22C1/1047
Inventor 杨兵
Owner 江苏亿超环境科技有限公司