SU373318A1 - LIBRARY ?. - Google Patents

LIBRARY ?.

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Publication number
SU373318A1
SU373318A1 SU1419766A SU1419766A SU373318A1 SU 373318 A1 SU373318 A1 SU 373318A1 SU 1419766 A SU1419766 A SU 1419766A SU 1419766 A SU1419766 A SU 1419766A SU 373318 A1 SU373318 A1 SU 373318A1
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SU
USSR - Soviet Union
Prior art keywords
temperature
heated
heat treatment
weld
welded
Prior art date
Application number
SU1419766A
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Russian (ru)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SU1419766A priority Critical patent/SU373318A1/en
Application granted granted Critical
Publication of SU373318A1 publication Critical patent/SU373318A1/en

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Description

СПОСОБ ТЕРМИЧЕСКОЙ ОБРАБОТКИ СВАРНЫХ ИЗДЕЛИЙMETHOD OF THERMAL TREATMENT OF WELDING PRODUCTS

1one

Известен способ термической обработки сварных изделий, например рельсов, по которому головку рельса в зоне сварного шва подвергают индукционному нагреву до температуры 850-900° С, а затем охлаждают воздушно-вод ной смесью.The known method of heat treatment of welded products, for example rails, by which the rail head in the weld zone is subjected to induction heating to a temperature of 850–900 ° C, and then cooled with an air-water mixture.

Недостатком этого способа  вл етс  то, что термической обработке подвергают только головку рельса в зоне сварного шва-, а подошва и шейка имеют неудовлетворительную структуру .The disadvantage of this method is that only the rail head in the weld zone is heat-treated, and the sole and the neck have an unsatisfactory structure.

Дл  повышени  качества сварных рельсов предлагаетс  способ, по которому производ т нагрев всего сечени  издели  в зоне сварного шва до температуры 850-900° С с последуюшим ускоренным охлаждением головки рельса до температуры не ниже 300- 400° С.To improve the quality of the welded rails, a method is proposed by which the entire section of the product in the weld zone is heated to a temperature of 850-900 ° C with subsequent accelerated cooling of the rail head to a temperature not lower than 300-400 ° C.

Кроме того, одновременно с нагревом производ т охлаждение краев нагретой зоны, что позвол ет уменьшить возможные в процессе термической обработки сварного шва переходные участки.In addition, simultaneously with the heating, the edges of the heated zone are cooled, which makes it possible to reduce transition areas that are possible during the heat treatment of the weld.

Местную термическую о бра-ботку сварного издели , например рельса, осуп1,естБЛ ют следующим образом. Зону сварного шва по всему сечению рельса нагревают с помош;ью индуктора до температуры 850-900° С, затем нагрев выключают и охлаждают голоаку рельса ico скоростью 5-,10°/сек и большеLocal thermal scrapping of a welded product, e.g. a rail, OCU1, has been performed as follows. The weld zone over the entire rail section is heated with the aid of an inductor to a temperature of 850–900 ° C, then the heating is turned off and cooled by a holoak rail ico at a speed of 5–10 ° / sec and more

до температуры не ниже 300-400° С.to a temperature not lower than 300-400 ° C.

В результате теплоотдачи от шейки и подошвы рельса температура на его головкеиоднимаетС  до С. Охлаждение шейки и подошвы рельса может быть естественнымAs a result of heat transfer from the neck and foot of the rail, the temperature on its head is from C to C. Cooling of the neck and foot of the rail can be natural.

или принудительным.or forced.

Предмет изобретени Subject invention

Claims (2)

1.Способ термической обработки сварных изделий, например рельсов, включаюший нагрев и 0Хлал дение, отличающийс  тем, что, с целью повышени  качества сварных рельсов , производ т нагрев всего сечени  издели  в зоне сварного шва до температуры 850- 900° С с последуюшим ускоренным охлаждением головки рельса до температуры не ниже 300-400° С.1. A method of heat treatment of welded products, for example rails, including heating and cooling, characterized in that, in order to improve the quality of welded rails, the entire section of the product in the weld zone is heated to a temperature of 850–900 ° C with subsequent accelerated cooling rail heads to a temperature not lower than 300-400 ° C. 2.Способ по п. 1, отличающийс  тем, что, с целью уменьшени  возможных в процессе термической обработки сварного шва переходных участков, одновременно с нагревом производ т охлаждение краев нагретой зоны.2. A method according to claim 1, characterized in that, in order to reduce the transition sections that are possible during the heat treatment of the weld, simultaneously with the heating, the edges of the heated zone are cooled.
SU1419766A 1970-04-07 1970-04-07 LIBRARY ?. SU373318A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1419766A SU373318A1 (en) 1970-04-07 1970-04-07 LIBRARY ?.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1419766A SU373318A1 (en) 1970-04-07 1970-04-07 LIBRARY ?.

Publications (1)

Publication Number Publication Date
SU373318A1 true SU373318A1 (en) 1973-03-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1419766A SU373318A1 (en) 1970-04-07 1970-04-07 LIBRARY ?.

Country Status (1)

Country Link
SU (1) SU373318A1 (en)

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