SU169553A1 - WEAR RESISTANT CAST IRON - Google Patents

WEAR RESISTANT CAST IRON

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Publication number
SU169553A1
SU169553A1 SU894709A SU894709A SU169553A1 SU 169553 A1 SU169553 A1 SU 169553A1 SU 894709 A SU894709 A SU 894709A SU 894709 A SU894709 A SU 894709A SU 169553 A1 SU169553 A1 SU 169553A1
Authority
SU
USSR - Soviet Union
Prior art keywords
cast iron
resistant cast
wear resistant
wear
hour
Prior art date
Application number
SU894709A
Other languages
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.)
Filing date
Publication date
Application filed filed Critical
Priority to SU894709A priority Critical patent/SU169553A1/en
Application granted granted Critical
Publication of SU169553A1 publication Critical patent/SU169553A1/en

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Description

Износостойкий чугун дл  деталей машин, работающих в услови х гидроабразивного износа по авт. св. № 151366 имеет следующий состав, о/о: углерод 2,4-2,8; кремний 0,5- 0,7; марганец 1,8-3,5; хром 14-22; никель 1,8-3,5; сера не более 0,1 и фосфор не более 0,1. Использование такого чугуна ограничено ввиду трудности его обработки.Wear-resistant cast iron for machine parts operating under conditions of hydroabrasive wear auth. St. № 151366 has the following composition, o / o: carbon 2.4-2.8; silicon 0.5-0.7; manganese 1.8-3.5; chrome 14-22; nickel 1.8-3.5; sulfur is not more than 0.1 and phosphorus is not more than 0.1. The use of such cast iron is limited due to the difficulty of its processing.

Цель изобретени  - улучшить обрабатываемость чугуна. Дл  этого предложено снизить нижний предел по содерлсанию углерода до 1,6о/о, а по содержанию никел  до 0,8о/о и подвергать чугун термообработке по режиму; нагрев до 850-870°С со скоростью 80- OQ°C/4ac, выдержка 1 час на 25 мм толщины издели , охлаждение с печью.The purpose of the invention is to improve the workability of cast iron. To this end, it has been proposed to lower the lower limit on carbon content to 1.6 o / o, and on nickel content to 0.8 o / o and to heat the iron according to the mode; heating to 850-870 ° С at a rate of 80- OQ ° C / 4ac, holding for 1 hour per 25 mm of the thickness of the product, cooling with an oven.

После того как издели  обработаны до необходимой формы и размеров дл  повышени  износостойкости их подвергают термообработке . При закалке издели  нагревают до 910 - 930°С со скоростью 80-100°С час, выдерживают 1 час на 25 мм толщины издели  и охлаждают на воздухе. При отпуске нагрев ведетс  до 230-250°С, затем выдерживают в течение одного часа и охлаждают на воздухе.After the products have been processed to the required shape and size, they are subjected to heat treatment to increase wear resistance. During quenching, the product is heated to 910 - 930 ° C at a speed of 80-100 ° C hour, kept for 1 hour per 25 mm of the product thickness and cooled in air. During tempering, the heating is conducted to 230-250 ° C, then held for one hour and cooled in air.

Твердость чугуна после термообработки составл ет 600-650 Нв.The hardness of the cast iron after heat treatment is 600-650 Hv.

Предел прочности при раст л ении60 кг/ммStrength at stretching 60 kg / mm

Предел прочности при изгибе . 80 кг/ммFlexural Strength 80 kg / mm

Стрела прогиба4,5 мм.Boom deflection4.5 mm.

Предмет изобретени Subject invention

Износостойкий чугун по авт. св. № 151366, отличающийс  тем, что, с целью улучшени  его обработки, в нем изменен нилспий предел по углероду до 1,6%, а никел  до 0,8о/о при следующем соотношении компонентов (в о/о) Wear-resistant cast iron according to ed. St. No. 151366, characterized in that, in order to improve its processing, it changes the nil spi limit on carbon to 1.6%, and nickel to 0.8 o / o in the following ratio of components (o / o)

углерод1,6-2,8carbon1,6-2,8

кремний0,5-0,7silicon 0.5-0.7

марганец1,8-3,5manganese1.8-3.5

хром14-22chrome14-22

никель0,8-3,5nickel0.8-3.5

серадо 0,1serdo 0.1

фосфордо 0,1,phosphorus 0,1,

SU894709A 1964-04-13 1964-04-13 WEAR RESISTANT CAST IRON SU169553A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU894709A SU169553A1 (en) 1964-04-13 1964-04-13 WEAR RESISTANT CAST IRON

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU894709A SU169553A1 (en) 1964-04-13 1964-04-13 WEAR RESISTANT CAST IRON

Publications (1)

Publication Number Publication Date
SU169553A1 true SU169553A1 (en) 1965-03-17

Family

ID=39951486

Family Applications (1)

Application Number Title Priority Date Filing Date
SU894709A SU169553A1 (en) 1964-04-13 1964-04-13 WEAR RESISTANT CAST IRON

Country Status (1)

Country Link
SU (1) SU169553A1 (en)

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