SU396606A1 - THERMAL METHOD FOR MONITORING THE QUALITY OF WELDING JOINTS - Google Patents
THERMAL METHOD FOR MONITORING THE QUALITY OF WELDING JOINTSInfo
- Publication number
- SU396606A1 SU396606A1 SU1711135A SU1711135A SU396606A1 SU 396606 A1 SU396606 A1 SU 396606A1 SU 1711135 A SU1711135 A SU 1711135A SU 1711135 A SU1711135 A SU 1711135A SU 396606 A1 SU396606 A1 SU 396606A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- temperature
- welding
- quality
- monitoring
- thermal method
- Prior art date
Links
Description
1one
Изобретение относитс к области дефектоскопии , а именно к неразрушающим испытани м сварных швов.This invention relates to the field of flaw detection, namely non-destructive testing of welds.
Известны тепловые способы контрол качества швов сварпых соединений, заключающиес в том, что о качестве швов суд т по температуре, при которой производилась сварка.Thermal methods are known for controlling the quality of welds of welded joints, which consist in the fact that the quality of welds is judged by the temperature at which the welding was performed.
Однако эти способы осуществл ютс в пропессе сварки при высоких температурах и, как следствие этого, обладают недостаточно высокой точностью.However, these methods are carried out in a welding process at high temperatures and, as a result, have insufficient accuracy.
Предлагаемый способ отличаетс от известных тем, что шов нагревают до температуры пиже температуры сварки и по заранее построенной зависимости коэффициента излучени -материала шва от температуры сварки при данной температуре нагрева определ ют температуру сварки.The proposed method differs from the known ones in that the seam is heated to the temperature of the fluid temperature of the welding temperature and the temperature of the welding is determined from the pre-constructed dependence of the emissivity of the seam material on the welding temperature at a given heating temperature.
Это обеспечивает повышение точности контрол .This provides increased control accuracy.
При нагреве шва до температуры выше окружающей среды, но з-начительно более низкой , чем температура сварки, измерени коэффициента излучени могут быть осуществлены с высокой точностью. В соответствии с этим образцы щвов, сваренных при различных температурах (ъ том числе и при температурах , обеспечивающих дефектную сварку), нагревают (после их охлаждени до температуры окружающей среды) до температуры ниже сварочной и одинаковой дл всех образцов . Определ ют коэффициент излучени поверхности каждого сварного шва и стро тWhen the weld is heated to a temperature higher than the environment, but at a much lower temperature than the welding temperature, the emissivity measurements can be carried out with high accuracy. Accordingly, samples of welds welded at different temperatures (also at temperatures that provide defective welding) are heated (after cooling to ambient temperature) to a temperature below the welding and the same for all samples. Determine the emissivity of the surface of each weld and build
зависимость коэффициента излучени от температуры сварки.dependence of radiation coefficient on welding temperature.
Контролируемый шов, охлажденный после сварки до температуры окружающей среды, нагревают до температуры, при которой производилось построение зависимости коэффициента излучени от температуры сварки. Измер ют коэффициент излучени и по построенной зависимости определ ют температуру, при которой производилась сварка. По найденной температуре суд т о качестве шва.The controlled seam, cooled after welding to ambient temperature, is heated to the temperature at which the dependence of the emissivity on the welding temperature was made. The radiation coefficient is measured and the temperature at which the welding was carried out is determined by the constructed dependence. According to the temperature found, the quality of the seam is judged.
Предмет изобретени Subject invention
Тепловой способ контрол качества швов сварных соединений, заключающийс в том, что о качестве щвов суд т по температуре, при которой производилась сварка, отличающийс тем, что, с целью повышени точностиThe thermal method of controlling the quality of welds of welded joints, which consists in the fact that the quality of the welds is judged by the temperature at which the welding was performed, characterized in that, in order to improve the accuracy
контрол , шов нагревают до температуры ниже температуры сварки и по заранее построенной зависимостп коэффициента излучени материала шва от температуры сварки при данной температуре нагрева определ ют температуру сварки.control, the seam is heated to a temperature below the welding temperature, and the welding temperature is determined from a pre-built dependence of the radiation coefficient of the seam material on the welding temperature at a given heating temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1711135A SU396606A1 (en) | 1971-11-03 | 1971-11-03 | THERMAL METHOD FOR MONITORING THE QUALITY OF WELDING JOINTS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1711135A SU396606A1 (en) | 1971-11-03 | 1971-11-03 | THERMAL METHOD FOR MONITORING THE QUALITY OF WELDING JOINTS |
Publications (1)
Publication Number | Publication Date |
---|---|
SU396606A1 true SU396606A1 (en) | 1973-08-29 |
Family
ID=20491984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1711135A SU396606A1 (en) | 1971-11-03 | 1971-11-03 | THERMAL METHOD FOR MONITORING THE QUALITY OF WELDING JOINTS |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU396606A1 (en) |
-
1971
- 1971-11-03 SU SU1711135A patent/SU396606A1/en active
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