SU668953A1 - Method of heat treatment of steel ingots and castings - Google Patents

Method of heat treatment of steel ingots and castings

Info

Publication number
SU668953A1
SU668953A1 SU721827122A SU1827122A SU668953A1 SU 668953 A1 SU668953 A1 SU 668953A1 SU 721827122 A SU721827122 A SU 721827122A SU 1827122 A SU1827122 A SU 1827122A SU 668953 A1 SU668953 A1 SU 668953A1
Authority
SU
USSR - Soviet Union
Prior art keywords
castings
heat treatment
steel ingots
temperature
steel
Prior art date
Application number
SU721827122A
Other languages
Russian (ru)
Inventor
Петр Егорович Алексеев
Виктор Александрович Соловьев
Татьяна Михайловна Леонтьева
Original Assignee
Alekseev Petr E
Solovev Viktor A
Leonteva Tatyana M
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 by Alekseev Petr E, Solovev Viktor A, Leonteva Tatyana M filed Critical Alekseev Petr E
Priority to SU721827122A priority Critical patent/SU668953A1/en
Application granted granted Critical
Publication of SU668953A1 publication Critical patent/SU668953A1/en

Links

Landscapes

  • Heat Treatment Of Steel (AREA)

Description

(54) СПОСОБ ТЕРМИЧЕСКОЙ ОБРАБОТКИ И ОТЛИВОК СТАЛЬНЫХ СЛИТКОВ(54) METHOD OF THERMAL TREATMENT AND CASTINGS OF STEEL INGOTS

Цель изобретени  - поььпиение механческих свойству уменьшение межкристалпитногч ) растрескивани  и фпокенообразовани  в спитках и отливках из угперодистой и пeгvфoйaнн.oй перлитного и мартенситного классов.The purpose of the invention is to reduce the mechanical properties of the reduction of intercrystalline cracking and formation in the spits and castings of the perperitious and pegly pearlite and martensitic classes.

Это достигаетс  тем, что, после кристаллизации слитков и отливок перед диффузионным отжигом провод т обеаво- дораживающую обработку при температуре « ЗО-6О С) с Выдержкой в течение 15-30 ч на 10О мм сечени .This is achieved by the fact that, after crystallization of the ingots and castings, before diffusion annealing, obstructive treatment is carried out at a temperature of “ZO-6O C) with a shutter speed of 15–30 hours per 10O mm of cross section.

Практическа  реализаци  способа заключаетс  в следующем. После кристаллизации отливки или слитки накапливаютс  в печи, при температуре бЮ670 С с Выдержкой в течение 6 ч. Затем провод т обезводораживающую термическую обработку, заключающуюс  в охлаждении отливок на спокойном воздухе до температуры 20О С на наружной поверхности или 250-ЗОО С на поверхности канала, нагреве до температуры 61О-67О Си Выдержке в течение 40 ч. После обезводораживающей обработки провод т диффузионный отжиг при температуре 1150 С в течение 12 ч с последующей нормализацией с температуры 9ОО С, высоким отпуском при 640-680 С, правкой в холодном состо нии, отпуском после правки и закалкой с 860 С.The practical implementation of the method is as follows. After crystallization, the castings or ingots accumulate in the furnace, at a temperature of 6,670 C with a holding time of 6 hours. Then a dehydrating heat treatment is carried out, consisting in cooling the castings in calm air to a temperature of 20 ° C on the outer surface or 250-ZOO C on the channel surface, heated to a temperature of 61 ° C-67 ° C. Exposure for 40 hours. After the dehydrating treatment, diffusion annealing is carried out at a temperature of 1150 ° C for 12 hours, followed by normalization from a temperature of 9OO C, high tempering at 640-680 C, minutes in the cold state, tempering after quenching and changes to 860 C.

Обработанные по данному способу отливки из стали марки 35ХНЗМФА ,имею следующие механические свойства:The 35KhNZMFA steel castings treated in this method have the following mechanical properties:

БB

127-132,5 кг/мм 118-124 кг/мм127-132.5 kg / mm 118-124 kg / mm

(FV(FV

105-115 кг/мм, 105-115 kg / mm

ff

8,5-15. % 49-48 %8.5-15. % 49-48%

ж. X v /uАg. X v / uA

Q(20°C)4-6 кгм/смQ (20 ° C) 4-6 kgm / cm

0(40 С) 3,2-6,0 KiWcM r Предлагаемое изобретение повысит комплекс механических свойств стальных слИтков и отливок, а также снизит межкристаллитное растрескивание и фло кенообразование и тем самьгм повьгсит выход годного до 95-10О%.0 (40 С) 3.2-6.0 KiWcM r The proposed invention will improve the complex of mechanical properties of steel plates and castings, as well as reduce intergranular cracking and flocking, and thus will yield a yield of up to 95-10%.

Claims (2)

1.С Клюев П. В. Водород и фпокены в крупных поко1бквх.. Машгиз ,1963,1.C Klyuev P.V. Hydrogen and phpoken in large pokolbkkh .. Mashgiz, 1963, с. 112.with. 112 2.Соколов К. Н. ТехнолоГ{   термической обработки стали. Машгиз , 1954,2. Sokolov K. N. TekhnoloG {heat treatment of steel. Mashgiz, 1954, с. 144.with. 144
SU721827122A 1972-09-11 1972-09-11 Method of heat treatment of steel ingots and castings SU668953A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU721827122A SU668953A1 (en) 1972-09-11 1972-09-11 Method of heat treatment of steel ingots and castings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU721827122A SU668953A1 (en) 1972-09-11 1972-09-11 Method of heat treatment of steel ingots and castings

Publications (1)

Publication Number Publication Date
SU668953A1 true SU668953A1 (en) 1979-06-25

Family

ID=20526642

Family Applications (1)

Application Number Title Priority Date Filing Date
SU721827122A SU668953A1 (en) 1972-09-11 1972-09-11 Method of heat treatment of steel ingots and castings

Country Status (1)

Country Link
SU (1) SU668953A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2567409C2 (en) * 2009-10-12 2015-11-10 Снекма Heat treatment of martensite stainless steel after electric slag remelting (esr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2567409C2 (en) * 2009-10-12 2015-11-10 Снекма Heat treatment of martensite stainless steel after electric slag remelting (esr)

Similar Documents

Publication Publication Date Title
US4021272A (en) Method of isothermal annealing of band steels for tools and razor blades
SE9903880L (en) Method for heat treatment of structural parts of steel or cast iron
ES475243A1 (en) Process for thermal treatment of thin 7000 series aluminum alloys and products obtained
SU668953A1 (en) Method of heat treatment of steel ingots and castings
SU436894A1 (en) The method of chemical-heat treatment of steel
GB1439071A (en) Thermal treatment of steel
SU836150A1 (en) Method of treatment of sheet rolled stock
SU415315A1 (en)
RU2082768C1 (en) Method for thermal treatment of low-carbon sheet steel
JPS5544584A (en) Production by continuous annealing of cold rolled steel plate of superior workability and age resistance
SU405960A1 (en) METHOD OF THERMAL TREATMENT OF LOW-CARBON STEEL
SU1188215A1 (en) Method of heat treatment of cold-rolled low-carbon steel
SU456004A1 (en) The method of thermo-mechanical processing of metals and alloys
SU460307A1 (en) The method of heat treatment of cast iron
RU2068449C1 (en) Method for thermal treatment of steel cast cores of frogs
SU749914A1 (en) Method of thermal treatment of high-streength corrosion-resistant martensite steels
US2469146A (en) Steel helmet
Ochi et al. A study of spheroidizing mechanism of cementite in annealing of medium carbon steel
SU423857A1 (en) METHOD OF HEAT TREATMENT OF STEEL PRODUCTS
SU1404534A1 (en) Method of treating steels
JPS5651530A (en) Continuous annealing method of cold rolled steel plate
SU396379A1 (en) METHOD OF THERMAL TREATMENT OF FRAMEWORK PURSES1)
SU850699A1 (en) Method of spheroidizing treatment of steel
SU945196A1 (en) Method for annealing high-speed steel
SU1693087A1 (en) Method of heat treatment of steels