SU464631A1 - The method of strengthening products - Google Patents
The method of strengthening productsInfo
- Publication number
- SU464631A1 SU464631A1 SU2009868A SU2009868A SU464631A1 SU 464631 A1 SU464631 A1 SU 464631A1 SU 2009868 A SU2009868 A SU 2009868A SU 2009868 A SU2009868 A SU 2009868A SU 464631 A1 SU464631 A1 SU 464631A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- strengthening
- hardening
- products
- aging
- strengthening products
- Prior art date
Links
Landscapes
- Heat Treatment Of Steel (AREA)
Description
(54) СПОСОБ УПРОЧНЕНИЯ ИЗДЕЛИЙ(54) METHOD OF PRODUCT IMPROVEMENT
Изобретение относитс к способам упрочн ющей обработки высокопрочных конструкционных сталей, в частности к изготовлению деталей, работающих па циклическое кручение .The invention relates to methods for the strengthening treatment of high-strength structural steels, in particular, to the manufacture of parts operating in cyclic torsion.
Известен способ упрочнени изделий, включающий термомеханическую обработку и поверхностный наклеп.There is a method of hardening products, including thermomechanical processing and surface work hardening.
Однако такой способ не может обеспечить достаточно высоких значений предела пропорциопальности материала, вл ющегос важной характеристикой упругих элементов.However, this method cannot provide sufficiently high values of the proportional to the proportion of the material, which is an important characteristic of elastic elements.
Целью изобретени вл етс повыщение упругих и усталостных свойств изделий.The aim of the invention is to increase the elastic and fatigue properties of the products.
Это достигаетс тем, что перед поверхностным наклепом и после него производ т пиз .котем :Юрату-р(нос старение.This is achieved by the fact that before the superficial work hardening, the vitus is produced: totem: Juratu-r (nose aging.
Описываемый способ упрочнени осуществл ют по следующей технологической с.кеме: термомеханическа обработка любым известным способом (низкотемпературна , высокоте .мпературна или термомеханическа поверхностна обработка); искусственное старение мартенсита при 100-200° С; финишна мехапическа обработка с использованием чистовой шлифовки; поверхиостиый наклеп любым известным способом (обкатка роликами , }1аклеп дробью, объемный наклеп); искусственное деформационное старение материала при 100-200° С.The described method of strengthening is carried out according to the following technological kemme: thermomechanical treatment by any known method (low temperature, high temperature or thermomechanical surface treatment); artificial aging of martensite at 100–200 ° C; finishing machining using fine polishing; surface hardening by any known method (rolling with rollers,} 1klep shot, volume hinge); artificial strain aging of the material at 100-200 ° C.
Способ упрочпени опробован на стали 45ХНМФА. Сталь подвергали операции ВТМО с деформацией кручени при 870- 880° С, пизкому двухчасовому отпуску при 100-200° С, поверхностному наклепу (одна парти обкатке роликами, друга - заневоливапию ), дефорл ационному двухчасовому старению при 200° С.The method of strengthening was tested on steel 45HNMFA. Steel was subjected to VTMO operation with torsion deformation at 870–880 ° C, tempering for two hours at 100–200 ° C, surface work-hardening (one batch was run-in with rollers, another - zanevolivapiya), for two-hour aging at 200 ° C.
Предел пропорциональности определ ли по стандартной методике при кручении образцов . Усталостные испытани проводили на машипах при циклическом кручении с симметричным циклом пагруже1П1 . Во всех случа хThe proportionality limit was determined by the standard method for torsion of samples. Fatigue tests were carried out on machines with cyclic torsion with a symmetric cycle Pagruzhe1P1. In all cases
использовали образцы диаметром рабочей части 6 мм.used samples with a diameter of 6 mm.
На образцах, упрочненных по пзвестному способу, получили предел пропорциопальпости 140 кг1мм, а предел усталости при спмметричном нагружении п базе испытатпн 10 циклов 115 кгм.ч-. Испытани образцов, упрочненных по описываемому способу, показали уровень предела пропорциональностиOn the samples, hardened by the well-known method, the proportional proportionality limit was 140 kg1 mm, and the fatigue limit under spheric loading on the base of the test was 10 cycles 115 kgm.h. Tests of specimens strengthened by the described method showed the level of proportionality
158 кг1мм, а предела усталости 125 кг/мм.158 kg1mm, and the fatigue limit is 125 kg / mm.
Предмет и з о б р е т е н И Subject and reference
Способ упрочнени изделий, включающий термомеханическую обработку и поверхностный наклеп, отличающийс тем, что, с целью повышени упругих и усталостных свойств, перед поверхностным наклепом и после него производ т низкотемпературное старение.A method of strengthening products, including thermomechanical treatment and surface hardening, characterized in that, in order to improve the elastic and fatigue properties, low-temperature aging is performed before and after the surface hardening.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2009868A SU464631A1 (en) | 1974-03-22 | 1974-03-22 | The method of strengthening products |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2009868A SU464631A1 (en) | 1974-03-22 | 1974-03-22 | The method of strengthening products |
Publications (1)
Publication Number | Publication Date |
---|---|
SU464631A1 true SU464631A1 (en) | 1975-03-25 |
Family
ID=20580041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2009868A SU464631A1 (en) | 1974-03-22 | 1974-03-22 | The method of strengthening products |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU464631A1 (en) |
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1974
- 1974-03-22 SU SU2009868A patent/SU464631A1/en active
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