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Hot-pressing preparation method and performance testing method for heterogeneous metal composite block material test

A technology of heterogeneous metals and testing methods, applied in the preparation of test samples, testing material strength by applying stable tension/compression, testing material strength by applying stable shear force, etc., can solve the problem that process parameters cannot be accurately controlled Controlling and affecting the performance of the composite interface, etc., to achieve the effect of short test period, rapid preparation, and guaranteed interface performance

Active Publication Date: 2021-05-28
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved in the present invention is to provide a method for hot-pressing preparation and performance testing of heterogeneous metal composite blocks, that is, to realize hot-pressing process parameters such as heating rate, reduction amount, hot-pressing temperature, holding time, and cooling rate. Accurate control, so as to study the influence of various parameters on the formability of the composite plate and the interface reaction layer, and explore the production process that meets the production requirements; it can solve the problem that the process parameters of the existing metal composite plate preparation process cannot be accurately controlled and affect the performance of the composite interface question

Method used

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  • Hot-pressing preparation method and performance testing method for heterogeneous metal composite block material test
  • Hot-pressing preparation method and performance testing method for heterogeneous metal composite block material test
  • Hot-pressing preparation method and performance testing method for heterogeneous metal composite block material test

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preparation example Construction

[0047] Such as figure 1 , 2 As shown, a method for preparing a heterogeneous metal composite bulk material by hot pressing for testing, comprising the following steps:

[0048] Step 1, surface treatment: sand and polish the surfaces of the metal A bar 6, the metal B sleeve 3 with a circular step in the middle, the metal B bar 1 and the metal B bar 2 of the same size and size with sandpaper, and then Wipe clean with alcohol after cleaning with acetone;

[0049] The metal B sleeve 3 is the same metal as the bars of the metal B bar one 1 and the metal B bar two 2 .

[0050] The size of the metal A bar 6 matches the size of the circular step in the middle of the metal B sleeve 3; the diameters of the metal B bar one 1 and metal B bar two 2 match the metal B sleeve The inner diameter of the cylinder 3 is matched.

[0051] Step 2, assemble the sample: place the metal A bar 6 on the circular step in the middle of the metal B sleeve 3, and then place the metal B bar 1 and the metal ...

Embodiment

[0070] In this embodiment, two materials, TA2 and low-carbon steel with a C content of 0.18%, are selected for hot pressing.

[0071] The specific operation steps are as follows:

[0072] Step 1, surface treatment: use two low-carbon steel bars with a size of φ15×45mm, a low-carbon steel sleeve with a size of φ20×25 mm and a wall thickness of 2.5mm, and a TA2 bar with a size of φ12×5mm. Sand paper to polish, then clean with acetone and wipe clean with alcohol.

[0073] Step 2, assemble the sample: Assemble the TA2 bar stock at the circular step in the middle of the low-carbon steel sleeve, then assemble two low-carbon steel bars on both sides of the sleeve respectively, and the end faces are close to the two ends of the TA2 bar stock ; And the thermocouple wire is welded on the side of the TA2 bar stock through the sleeve through hole whose diameter φ is 2mm on the sleeve.

[0074] Step 3, isolation and anti-sticking: apply high-temperature lubricant to the other two ends of...

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Abstract

The invention discloses a hot-pressing preparation method and a performance testing method for a heterogeneous metal composite block material test, and belongs to the technical field of preparation of heterogeneous metal composites. The hot-pressing preparation method comprises the steps of surface treatment, sample assembly, isolation and adhesion prevention, hot pressing and cooling, and preparation completing. The performance testing method is an interface mechanical performance testing method and comprises a Z-direction tensile test method and a compression-shear test method. According to the invention, the structure design is carried out on a to-be-compounded metal material, and the hot pressing process parameters are controlled through the thermocouple wire, so that the hot pressing process of the composite material is accurately controlled, the preparation is rapid, the performance is detected, the influence of the process parameters on the interface performance of the dissimilar metal composite block is researched, the process window can be reduced while the interface performance is guaranteed, and technical support is provided for industrial production of metal composite materials; and the device is simple in structure, convenient to operate, short in test period and low in test cost.

Description

technical field [0001] The invention relates to the technical field of preparation of heterogeneous metal composite materials, in particular to a method for hot-pressing preparation and performance testing of heterogeneous metal composite block materials for testing. Background technique [0002] With the development of the economy and the advancement of science and technology, metal materials are more and more widely used in more harsh and complex working environments, but a single metal material is difficult to meet the comprehensive performance requirements of people at this stage. Therefore, metal composite materials emerged as the times require and become an important direction of material research at the present stage. Metal composite materials have been widely used in bridges, railways, natural gas storage tanks, ships and many other industries. The use of composite materials not only reduces the cost of materials, but also meets the high comprehensive performance req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N1/32G01N1/44G01N3/08G01N3/24
CPCG01N1/286G01N1/32G01N1/44G01N3/08G01N3/24G01N2001/2873G01N2203/0019G01N2203/0025G01N2203/0298
Inventor 王青峰杨啸雨郭凯高云哲吴炳南张栩源王秋鸣
Owner YANSHAN UNIV
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