CN106735996A - 一种无损检测培训用焊缝横向裂纹制备方法 - Google Patents

一种无损检测培训用焊缝横向裂纹制备方法 Download PDF

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Publication number
CN106735996A
CN106735996A CN201611227938.2A CN201611227938A CN106735996A CN 106735996 A CN106735996 A CN 106735996A CN 201611227938 A CN201611227938 A CN 201611227938A CN 106735996 A CN106735996 A CN 106735996A
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welding
weld seam
destructive testing
transversal crack
crack
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李大用
高恩双
蒋巍
苏荣
田隽
贺鸿飞
赵俊凯
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Bohai Shipyard Group Co Ltd
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Bohai Shipyard Group Co Ltd
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Priority to CN201611227938.2A priority Critical patent/CN106735996A/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
    • B23K31/125—Weld quality monitoring

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  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Mechanical Engineering (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

本发明提出的是一种无损检测培训用焊缝横向裂纹制备方法。通过对制作的低强度钢无损检测样块在预定横向裂纹位置进行熔敷设定厚度的超硬质钻基合金堆焊层，造成钴基堆焊层自然开裂，然后再填充普通焊接材料，成功的解决了无损检测样块只能通过钻孔或预埋缺陷代替横向冷裂纹的问题，保证了无损检测培训的质量，确保了无损检测人员对横向冷裂纹的判断的准确性，保证了焊接结构的安全。适宜作为无损检测培训用焊缝横向裂纹制备方法使用。

Description

一种无损检测培训用焊缝横向裂纹制备方法
技术领域
本发明涉及无损检测技术领域，具体地说是一种无损检测培训用焊缝横向裂纹制备方法。
背景技术
目前焊接结构低合金高强度钢越来越多的应用到压力容器行业当中，对材料的韧性和强度要求越来越高，焊接过程中焊缝经常出现横向冷裂纹，对无损检测人员对横向冷裂纹的检测提出了很高的要求。无损检测人员针对横向裂纹培训过程使用的模拟试块多为钻孔或预埋缺陷的方式制备的试样，钻孔或预埋缺陷试样很难在培训过程中获得良好的效果，但由于其缺陷位置可控，且容易制作，一直沿用。上述样块很难有针对性的对横向裂纹进行典型判定，在对实际产品无损检测过程中极易造成缺陷判定不准确或漏判的现象。严重影响了焊接结构的安全。
发明内容
为了解决上述问题，本发明提出了一种无损检测培训用焊缝横向裂纹制备方法。该方法通过对样块进行坡口加工并焊接，解决样块焊缝横向裂纹制备的技术问题。
本发明解决技术问题所采用的方案是：
(1)样块采用Q345R合金，厚度80mm，焊接坡口侧进行15°坡口加工，坡口形式为20mm间隙的梯形对接坡口，样块背面装配焊接垫板；
(2)首先使用J507焊条进行熔敷金属堆焊，堆焊厚度约37-38mm；
(3)从焊缝长度方向的中央位置偏左5cm位置向右进行超硬质钴基合金的金属熔敷焊接，长度10cm，宽4cm，厚度为6mm；
(4)超硬质钻基合金熔敷焊接完成后，继续使用J507焊条进行熔敷金属焊接，直至形成完整的焊缝；
(5)通过射线探伤确定焊缝内部没有其他类型缺陷，只有一条横向裂纹，横向裂纹位置在39-4lmm处。
积极效果，本发明确保了无损检测人员对横向冷裂纹检测的培训质量，保证了培训过程检测的横向冷裂纹特征进一步接近真实情况。解决了无损检测样块只能通过钻孔或预埋缺陷代替横向冷裂纹的问题。适宜作为无损检测培训用焊缝横向裂纹制备方法使用。
具体实施方式
以下结合技术方案叙述本发明准确制备横向冷裂纹样块的具体实施方案，其实施步骤如下：
(1)样块为Q345R，厚度为80mm，焊接坡口侧采用机械方法进行15°坡口加工，坡口形式为20mm间隙的梯形对接坡口，样块背面装配焊接垫板；
(2)首先使用J507焊条进行熔敷金属堆焊，堆焊厚度约37-38mm；
(3)从焊缝长度方向的中央位置偏左5cm位置向右进行超硬质钴基合金的金属熔敷焊接，长度10cm，宽4cm，厚度为6mm；
(4)超硬质钻基合金熔敷焊接完成后，继续使用J507焊条进行熔敷金属焊接，直至形成完整的焊缝；
(5)通过射线探伤确定焊缝内部没有其他类型缺陷，只有一条横向裂纹，横向裂纹位置在39-4lmm处。

Claims (1)

1.一种无损检测培训用焊缝横向裂纹制备方法，其特征在于：
(1)样块采用Q345R合金，厚度80mm，焊接坡口侧进行15°坡口加工，坡口形式为20mm间隙的梯形对接坡口，样块背面装配焊接垫板；
(2)首先使用J507焊条进行熔敷金属堆焊，堆焊厚度约37-38mm；
(3)从焊缝长度方向的中央位置偏左5cm位置向右进行超硬质钴基合金的金属熔敷焊接，长度10cm，宽4cm，厚度为6mm；
(4)超硬质钻基合金熔敷焊接完成后，继续使用J507焊条进行熔敷金属焊接，直至形成完整的焊缝；
(5)通过射线探伤确定焊缝内部没有其他类型缺陷，只有一条横向裂纹，横向裂纹位置在39-4lmm处。
CN201611227938.2A 2016-12-27 2016-12-27 一种无损检测培训用焊缝横向裂纹制备方法 Pending CN106735996A (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111195807A (zh) * 2020-01-20 2020-05-26 西安交通大学 一种无损探伤教学用内部裂纹缺陷试板的制作方法
CN113324165A (zh) * 2021-06-09 2021-08-31 中国特种设备检测研究院 一种含有缺陷的iv型储氢瓶样瓶及其制备方法
US11703497B1 (en) * 2022-01-20 2023-07-18 Tianjin University Quantitative evaluation method for sensitivity of welding transverse cold cracks in typical joint of jacket

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CN1979153A (zh) * 2005-11-29 2007-06-13 中国石油天然气管道局 焊缝相控阵超声横向裂纹检测方法
CN101576450A (zh) * 2009-06-11 2009-11-11 西安交通大学 一种无损探伤用表面裂纹缺陷试块的制作方法
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CN104729901A (zh) * 2015-03-18 2015-06-24 田国良 一种用于模拟试块焊缝中制作纵向裂纹的方法
CN105196002A (zh) * 2015-10-22 2015-12-30 安徽省特种设备检测院 一种磁粉检测用带涂覆层人工裂纹缺陷试块的制作方法
CN105842034A (zh) * 2016-05-17 2016-08-10 山东电力建设第工程公司 一种裂纹缺陷试件的制作方法

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Publication number Priority date Publication date Assignee Title
CN1979153A (zh) * 2005-11-29 2007-06-13 中国石油天然气管道局 焊缝相控阵超声横向裂纹检测方法
CN101576450A (zh) * 2009-06-11 2009-11-11 西安交通大学 一种无损探伤用表面裂纹缺陷试块的制作方法
US20130115092A1 (en) * 2011-11-03 2013-05-09 Kazim Ozbaysal Isothermal structural repair of superalloy components including turbine blades
CN103308354A (zh) * 2012-03-08 2013-09-18 上海振华重工(集团)股份有限公司 高强钢角接焊接横向裂纹预制方法
CN104729901A (zh) * 2015-03-18 2015-06-24 田国良 一种用于模拟试块焊缝中制作纵向裂纹的方法
CN105196002A (zh) * 2015-10-22 2015-12-30 安徽省特种设备检测院 一种磁粉检测用带涂覆层人工裂纹缺陷试块的制作方法
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111195807A (zh) * 2020-01-20 2020-05-26 西安交通大学 一种无损探伤教学用内部裂纹缺陷试板的制作方法
CN113324165A (zh) * 2021-06-09 2021-08-31 中国特种设备检测研究院 一种含有缺陷的iv型储氢瓶样瓶及其制备方法
CN113324165B (zh) * 2021-06-09 2022-12-13 中国特种设备检测研究院 一种含有缺陷的iv型储氢瓶样瓶及其制备方法
US11703497B1 (en) * 2022-01-20 2023-07-18 Tianjin University Quantitative evaluation method for sensitivity of welding transverse cold cracks in typical joint of jacket
US20230228728A1 (en) * 2022-01-20 2023-07-20 Tianjin University Quantitative evaluation method for sensitivity of welding transverse cold cracks in typical joint of jacket

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