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Automatic testing device for intergranular corrosion of metal material

An automatic test and intergranular corrosion technology, applied in the direction of measuring devices, analysis materials, weather resistance/light resistance/corrosion resistance, etc., can solve problems such as poor sealing, unreliable and automatic completion of intergranular corrosion tests, poor reliability, etc., to achieve It is convenient for maintenance, convenient for test records, and the effect of increasing the loading capacity

Pending Publication Date: 2020-06-23
CNNC JIANZHONG NUCLEAR FUEL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of the cover plate relies on the gravity sealing method, which has poor sealing performance, and the cover plate and the condenser, sensor, etc. on it must be lifted when taking it out, so the reliability is poor
[0005] Therefore, the existing intergranular corrosion test device has more or less problems, and cannot reliably and automatically complete the entire process of the intergranular corrosion test

Method used

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  • Automatic testing device for intergranular corrosion of metal material
  • Automatic testing device for intergranular corrosion of metal material
  • Automatic testing device for intergranular corrosion of metal material

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like figure 1 As shown, an automatic test device for intergranular corrosion consists of a transparent glass protective door 1, a cabinet 2, a PID regulator 3, a display alarm 4, an electronic recorder 5, a glass plug with holes 6, a condenser temperature sensor 7, and a condenser Tube 8, solution temperature sensor 9, steam pressure sensor 10, container top cover 11, container fixing ring and quick lock 12, heating container 13, electric heating jacket 14, lifting table 15, circulating cooling water device 16, tapered grinding mouth Interface 17, sealing gasket 18.

[0023] The outer side of the cabinet 2 uses an aluminum alloy frame and a plastic-sprayed panel, and is equipped with casters to move as a whole. The middle test area is hollow and equipped with a closeable tempered glass cabinet door 1, and the inner wall of th...

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Abstract

The invention discloses an automatic testing device for intergranular corrosion of a metal material. The device comprises a cabinet. The cabinet is provided with trundles which can move integrally. The middle test area is hollow and is provided with a closable toughened glass cabinet door. The lifting platform is fixed at the bottom of the cabinet test area. The electric heating sleeve and the glass container are placed on the lifting platform and can move up and down. The container top cover is fixed on the inner wall of the cabinet through the upper fixing ring, the solution temperature sensor, the steam pressure sensor and the condenser pipe are all fixed on the container top cover, and the PID regulator, the display alarm instrument and the electronic recorder are all installed in theclosed cabinets on the two sides to be isolated from a test area. The device has the advantages that automatic control is added, the intergranular corrosion test process can be completed in an unattended mode, the micro-boiling state of a corrosion solution can be accurately controlled, various abnormal states can be alarmed, and the automatic protection function is achieved. Circulating cooling water is used, so that water resources are saved, and the water consumption is reduced from 4 tons each time to almost no water consumption.

Description

technical field [0001] The invention belongs to a metal material performance test device, in particular to an automatic test device for metal material intergranular corrosion. Background technique [0002] Intergranular corrosion is a kind of local corrosion, which is a kind of corrosion that expands along the interface between metal grains to the inside. Intergranular corrosion destroys the bonding between grains and greatly reduces the strength of metallic materials. When the stainless steel with intergranular corrosion is subjected to stress, it will fracture along the grain boundary and its strength will be severely reduced. This is one of the most dangerous failure modes of stainless steel. Austenitic or stainless steel materials are widely used as structural materials in nuclear fuel assemblies. Therefore, investigating the intergranular corrosion resistance of stainless steel materials is one of the routine inspection items of metallography, and plays a vital role i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 袁野范绍华周希李至博
Owner CNNC JIANZHONG NUCLEAR FUEL
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