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Four quality inspection aspects of elbow welding

Four quality inspection aspects of elbow welding

1. Appearance inspection: Generally, it is mainly observed with the naked eye, and sometimes with a magnifying glass of 5-20 times. Through visual inspection, it can be found that the surface defects of the welded elbow, such as undercut, weld flash, surface crack, porosity, slag inclusion and welding penetration, etc. The outer dimensions of the weld can also be measured with a weld joint detector or a template.

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09

Characteristics of stainless steel stamping parts

Characteristics of stainless steel stamping parts

Stainless steel stamping parts are favored by people for their beautiful appearance, corrosion resistance, high temperature oxidation resistance, high and low temperature strength and other advantages, and are more and more widely used in various industries. So what are the characteristics of stainless steel stamping parts? With this question, let's take a look.

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2021

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09

Design principles of stainless steel stamping parts

Design principles of stainless steel stamping parts

The designed stamping should meet the product use and technical performance, and be easy to assemble and repair.

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2021

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Common problems and solutions in the stamping process of stainless steel stamping parts

Common problems and solutions in the stamping process of stainless steel stamping parts

The scratches on the surface of stainless steel stamping parts are mainly due to the relative movement between the workpiece and the surface of the mold. Under the action of a certain pressure, the blank and the local surface of the mold are directly rubbed, and the deformation heat of the blank causes the blank and metal chips to be deposited on the surface of the mold. , causing scratches on the surface of the workpiece.

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2021

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Evaluation criteria for 17 kinds of stamping parts defects

Evaluation criteria for 17 kinds of stamping parts defects

Class A defects: cracking that can be noticed by users without training. The stamping parts with such defects are not acceptable to users, and the stamping parts should be frozen immediately after discovery.

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Stamping parts: common test method

Stamping parts: common test method

Wipe the surface of the outer covering with a clean gauze. The inspector should wear a touch glove to touch the stamping surface along the longitudinal side of the stamping. This inspection method depends on the inspector's experience. If necessary, the suspected area can be polished with whetstone and verified, but this method can be regarded as an effective and rapid test method.

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