High-temperature tensile test clamp suitable for steel wire with special-shaped section

A technology of tensile test and special-shaped section, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of inaccurate test results, large damage to the tested material, and errors, etc., to achieve reduction Small error, avoid damage, improve the effect of experimental results

Pending Publication Date: 2020-02-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problem that the existing clamps cannot clamp and fix the special-shaped cross-section steel wire, and when the high-temperature tensile test is performed on the special-shaped cross-section steel wire, the use of the existing clamp will cause great damage to the tested material, resulting in inaccurate test results , there is a problem of error, and a high-temperature tensile test fixture suitable for special-shaped cross-section steel wire is proposed

Method used

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  • High-temperature tensile test clamp suitable for steel wire with special-shaped section
  • High-temperature tensile test clamp suitable for steel wire with special-shaped section
  • High-temperature tensile test clamp suitable for steel wire with special-shaped section

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specific Embodiment approach 1

[0021] Specific implementation mode one: combine Figure 1 to Figure 4 To illustrate this embodiment, a high-temperature tensile test fixture suitable for special-shaped cross-section steel wires described in this embodiment includes a collar 1 and a chuck 2;

[0022] The chuck 2 is cylindrical, and the center of the lower surface of the chuck 2 is provided with a boss, and the center of the upper surface of the chuck 2 is provided with a square through hole, and the outer wall of the chuck 2 along the circumferential direction is uniformly provided with two pin holes, and the two pin holes are symmetrically arranged, the collar 1 is a cuboid with a cavity, and the top of the collar 1 is provided with n square bosses, n is a positive integer, and the two sides of the collar 1 are symmetrically arranged Multiple sets of through holes, the collet 2 passes through one end of the collar 1, and is fixedly connected by a pin;

[0023] In this specific embodiment, when in use, one e...

specific Embodiment approach 2

[0024] Specific implementation mode two: combination Figure 4 Describe this embodiment, this embodiment is a further limitation on the fixture described in the first specific embodiment, a high-temperature tensile test fixture suitable for special-shaped cross-section steel wire described in this embodiment, the collar 1 The number n of square bosses, 1≤n≤3.

specific Embodiment approach 3

[0025] Specific implementation mode three: combination figure 2 and Figure 4 Describe this embodiment, this embodiment is a further limitation on the fixture described in the second specific embodiment, a high temperature tensile test fixture suitable for special-shaped cross-section steel wire described in this embodiment, the collar 1 and The material of chuck 2 is high temperature alloy 4169;

[0026] In this specific embodiment, the collar 1 and chuck 2 are both made of superalloy 4169. Under high temperature (600-1000 degrees) conditions, ordinary steel has almost no strength due to the temperature softening effect, and high temperature resistant materials must be selected. High temperature alloy 4169 is cheaper than other materials (such as high-temperature alloy GH4049, etc.), and its melting point is about 1400 degrees, so it can be used to make high-temperature tensile fixtures.

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Abstract

The invention discloses a high-temperature tensile test clamp suitable for a steel wire with a special-shaped section, relates to the field of clamp design, and aims to solve the problems that an existing clamp cannot clamp and fix the steel wire with the special-shaped section, greatly damages a detected material during high-temperature tensile test, and further causes inaccurate test results anderrors. A chuck of the clamp is cylindrical, a boss is arranged in the center of the lower surface of the chuck, a square through hole is arranged in the center of the upper surface of the chuck, twopin holes are uniformly and symmetrically arranged along the circumferential outer wall of the chuck, a lantern ring is in a cuboid shape with a cavity, n square bosses are arranged in the top of thelantern ring, n represents a positive integer, groups of through holes are symmetrically arranged in the two side surfaces of the lantern ring, and the chuck penetrates one end of the lantern ring and is fixedly connected via the pins. The clamp is suitable for clamping the steel wire with the special-shaped section, and can be used for high-temperature tensile test.

Description

technical field [0001] The invention relates to the field of fixture design, in particular to a high-temperature tensile test fixture suitable for special-shaped cross-section steel wires. Background technique [0002] The closed steel wire rope is a new type of construction product with high tensile strength, fatigue resistance, smooth surface and good corrosion resistance. The special-shaped cross-section steel wire (including but not limited to Z-type, X-type, etc.) is the main reason for its excellent performance. . However, due to the late development of the product, the existing clamps on the market cannot clamp special-shaped steel wires, and there is no clamping method for such steel wires in the specifications. At present, the core of the larger-diameter special-shaped steel wire can be made into a round bar specimen, but the test results are often inaccurate due to the difficulty of processing and the large damage to the material, which greatly limits the applicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18G01N3/04
CPCG01N3/04G01N3/18G01N2203/0017G01N2203/0226G01N2203/0252G01N2203/028
Inventor 刘欣悦马会环范峰
Owner HARBIN INST OF TECH
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