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Method for connecting semi-solid materials into whole

A semi-solid slurry and semi-solid technology, applied in chemical instruments and methods, welding equipment, lamination, etc., can solve problems such as difficulty in obtaining comprehensive performance of joints

Active Publication Date: 2012-08-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The present invention aims to solve the problem that it is difficult to obtain good joint comprehensive performance by the existing mechanical connection, adhesive bonding and conventional fusion welding methods, and provides an integrated method for connecting and forming semi-solid materials

Method used

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  • Method for connecting semi-solid materials into whole
  • Method for connecting semi-solid materials into whole
  • Method for connecting semi-solid materials into whole

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0035] Specific implementation mode 1: In this implementation mode, the semi-solid material connection and forming integration method is carried out according to the following steps:

[0036] 1. Prepare two or more pre-connected materials into semi-solid blanks or semi-solid slurries respectively, wherein the type of pre-connected materials prepared into semi-solid blanks is greater than or equal to the type of pre-connected materials prepared into semi-solid slurries type;

[0037] 2. If all pre-connected materials are prepared into semi-solid blanks in step 1, the semi-solid blanks of pre-connected materials prepared in step 1 are heated to a predetermined temperature range, and then the heated semi-solid blanks are placed in the mold cavity Or put it under the roll for thixotropic forming. After die forging or rolling is completed, take out the connected and formed parts to complete the integrated process of semi-solid connection and forming of the required parts;

[0038]...

specific Embodiment approach 2

[0042] Embodiment 2: This embodiment differs from Embodiment 1 in that the pre-connected material in step 1 is a metal material or a metal matrix composite material. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0043] Embodiment 3: This embodiment is different from Embodiment 2 in that: the metal material is a superalloy. Others are the same as in the second embodiment.

[0044] The metal material described in this embodiment is not limited to superalloys, as long as the metal material has semi-solid structure characteristics, the present invention can be realized.

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Abstract

A method for connecting semi-solid materials into a whole relates to the technical field of material connection and formation and solves the problem that an existing mechanical connection, glue joint and conventional fusion welding method is difficult to obtain good joint comprehensive performance. The method for connecting the semi-solid materials into the whole includes that 1 two kinds or more than two kinds of pre-connection materials are prepared into semi-solid blank or semi-solid slurry respectively; and 2 the semi-solid blank or the semi-solid slurry prepared in step one is put in a die cavity or below a roller to perform one-time composite formation under pressure. A material interface prepared by the method is good in combination, high in performance, small in product residual stress and high in production efficiency. Semi-solid formation is low in temperature, requirements on die materials are not high, and production environment is good. The semi-solid formation is high in mechanical property, requirements for the mechanical property can be satisfied, and the method for connecting the semi-solid materials into the whole is used in the field of material connection and formation.

Description

technical field [0001] The invention relates to the technical field of material connection and forming. Background technique [0002] Material connection is to connect two or more materials (including metals and non-metals, composite materials, compounds, etc.) together through certain process conditions to form a complete structure with certain performance. The material connection structure has the excellent properties of various materials, so it has been widely used in aerospace, space technology, nuclear industry, microelectronics, automobile, petrochemical and other fields. [0003] The progress of modern science and technology has increasingly increased the requirements for material science and engineering technology. The development of new high-performance structural parts and advanced connection technology has become an urgent problem for high-tech enterprises. areas are more evident. For example, the heat pipe structure in the aerospace field and the national produ...

Claims

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Application Information

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IPC IPC(8): B23K20/02B23K20/04B22D18/02B22D19/16B21J5/06B21B47/00B32B37/15
Inventor 程远胜马卓识姜巨福
Owner HARBIN INST OF TECH
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