小径管凹痕缺陷试块、制备模具及制备方法

By designing test blocks and preparing molds for small-diameter pipe dent defects, the problem of insufficient coverage of dent defects in small-diameter pipes was solved, enabling effective detection and quantitative analysis of dent defects of various shapes, thus meeting the needs of flaw detection.

CN121090188BActive Publication Date: 2026-07-17SHANDONG RUIXIANG MOLD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG RUIXIANG MOLD
Filing Date
2025-08-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing small-diameter pipe dent defect test blocks have limited dent defect coverage, making it difficult to effectively monitor dent defect signals of various shapes, thus hindering the differentiation and quantitative analysis of dent defects.

Method used

A test block and preparation mold for dent defects in small-diameter pipes were designed, including an inner support structure and an outer pressing structure. Through the cooperation of an expansion core, a fixed tie rod and an expansion core shaft, multiple dent defects of different shapes can be formed on small-diameter pipes. Combined with the adjustment of the mold's hardness and position, the accuracy and repeatability of the dent defects are ensured.

Benefits of technology

This invention enables the arrangement of multiple dent defects on small-diameter pipes, effectively detecting and distinguishing dent defect signals of various shapes. It solves the problem of signal inability to be effectively distinguished in existing technologies and meets the needs of flaw detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及无损检测领域,具体地涉及一种小径管凹痕缺陷试块、制备模具和制备方法。该小径管凹痕缺陷试块包括小径管,长度为300mm‑800mm;凹痕缺陷,形成在小径管的外圆表面,并且沿小径管的长度方向间隔设置有多个,相邻凹痕缺陷间隔30mm‑60mm。本发明小径管凹痕缺陷试块能够在小径管上布置多个不同形状的凹痕缺陷,能够有效检测对比各种形状的凹痕缺陷的信号,从而对凹痕缺陷进行区分和定量分析,解决类似信号无法有效分辨的问题。
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Citation Information

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