SU392115A1 - METHOD OF THERMAL PROCESSING OF STEEL TOOLS - Google Patents

METHOD OF THERMAL PROCESSING OF STEEL TOOLS

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Publication number
SU392115A1
SU392115A1 SU1498636A SU1498636A SU392115A1 SU 392115 A1 SU392115 A1 SU 392115A1 SU 1498636 A SU1498636 A SU 1498636A SU 1498636 A SU1498636 A SU 1498636A SU 392115 A1 SU392115 A1 SU 392115A1
Authority
SU
USSR - Soviet Union
Prior art keywords
thermal processing
working part
steel tools
steel
temperature
Prior art date
Application number
SU1498636A
Other languages
Russian (ru)
Inventor
И. С. Галкин Б. В. Алешин
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.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1498636A priority Critical patent/SU392115A1/en
Application granted granted Critical
Publication of SU392115A1 publication Critical patent/SU392115A1/en

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Description

1one

Изобретение относнтс  к способам термической обработки инструментов из углеродистых cTa;ieiy.The invention relates to methods for the heat treatment of carbon tools cTa; ieiy.

Известен способ термической обработки стального инструмента, включающий нагрев иод закалку, закалку рабочей части и отпуск в сол ной ванне.A known method of heat treatment of a steel tool includes heating iodine quenching, quenching the working part and tempering in a salt bath.

Однако такой способ не обеспечивает высокой производительпости обработки и удовлетворительного качества шгструмеита.However, this method does not provide high proizvoditposti processing and satisfactory quality of Schgrmeite.

Целью нзобретенн   вл етс  сокращение цикла обработки и повышенне качества IHICTрумента на углеродистых сталей.The goal of the invention is to shorten the processing cycle and improve the quality of the IHIC tool on carbon steels.

Достигаетс  это тем, что отпуск производ т непосредствеппо по достнжении иоверхностыо рабочей части )П1Струмента темнературы 20-40°С.This is achieved by the fact that tempering is carried out directly on the completion of the working part and the surface of the temperature control of 20-40 ° C.

Предлагаемый снособ обработки стального инструмента включает нагрев инструмента до темиературы необходимой дл  закалки рабочей части, местиое охлаждение рабочей части в воде или других средах со скоростью выше критической до 20-40°С, ири котором сердцевина рабочей части приобретает аустенито-мартенситиую структуру, а хвостовик сохраи ет аустеннтиую структуру, и выдержку в иизкотемиературиой сол ной ваине всего инструмента, при которой происходит отпуск его рабочей части и неполна  закалка хвостовика.The proposed method of processing a steel tool includes heating the tool to the temperature required for quenching the working part, local cooling of the working part in water or other media with a speed higher than critical to 20-40 ° C, and the core of the working part acquires austenite-martensite structure There is an austenntia structure, and the salt vain of the entire instrument in the izkotemieeraturii salt wort, at which its working part is released and the shank is not fully quenched.

Сиособ опробован разлнчиых из сталн У12 (общее количество - более 250 штук), обрабатываемых на твсрдост рабочей частн 62-65 , хвостоинка HR,.The tool has been tested for various steel from U12 (the total number is more than 250 pieces), processed to a hardness of working part 62-65, HR tail,.

Режнм термической обработки метчиков состоит в нагреве в сол иой ванне до темнературы 780-800°С, охлаждении рабочей частн в воде до температуры на иоверхиости 20-30 С и отпуска в селитровой ваине при температуре 170°С в течение 1,5 час.Heat treatment of taps consists in heating in a salt bath to a temperature of 780-800 ° C, cooling the working part in water to a temperature on the surface of 20-30 C and tempering in saltpetre at 170 ° C for 1.5 hours.

Коитрольна  нроверка всех метчнков иодтверднла их полное соответствие техиическпм условн м на термообработку.Coitrol testing of all bins and their complete compliance with the technical conditions for heat treatment was confirmed.

Благодар  сокращению цикла термической обработки и исключеи1ио закалочиых трещин предлагаемый снособ обработки стальиого инструмента нозвол ет повысить качество ниструмента н снизить себестоимость обработки.By reducing the heat treatment cycle and eliminating hardened cracks, the proposed method of processing steel tools can improve the quality of the tool and reduce the cost of treatment.

Предмет н з о б р е т е и и  Subject matter

Снособ термической обработки стальиого инструмента, включаюи1,ий нагрев иод закалку , закалку рабочей части и иизкотемпературный отиуск в сол ной ванне, отличающийс  тем, что, с целью сокращени  цикла обработки и иовышеии  качества ииструмеита из 3 углеродистых сталей, отпуск производ т непосредственно по достижении поверхностью 4 рабочей части инструмента температуры 20-40°С.The method of heat treatment of steel tools, including 1, heating and quenching, quenching the working part and temperature temperature in a salt bath, characterized in that, in order to shorten the machining cycle and improve the quality of rubber from 3 carbon steels 4 working parts of the instrument temperature 20-40 ° C.

SU1498636A 1970-12-15 1970-12-15 METHOD OF THERMAL PROCESSING OF STEEL TOOLS SU392115A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1498636A SU392115A1 (en) 1970-12-15 1970-12-15 METHOD OF THERMAL PROCESSING OF STEEL TOOLS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1498636A SU392115A1 (en) 1970-12-15 1970-12-15 METHOD OF THERMAL PROCESSING OF STEEL TOOLS

Publications (1)

Publication Number Publication Date
SU392115A1 true SU392115A1 (en) 1973-07-27

Family

ID=20460962

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1498636A SU392115A1 (en) 1970-12-15 1970-12-15 METHOD OF THERMAL PROCESSING OF STEEL TOOLS

Country Status (1)

Country Link
SU (1) SU392115A1 (en)

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