Cast heat treatment

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Cast heat treatment

Source: China Bearing Network Time: 2013-05-03
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As far as casting engineers and mechanical layout engineers are concerned, heat treatment is a very meaningful one; it is of great value to improve hardening treatment; heat treatment can modify or influence the arrangement and nature of cast iron; High strength, hardness; and improve its resistance to resistance and so on.
Because the intention is different; there are many varieties of heat treatment; there are two main categories of dividends; the first is to arrange the layout without changes through heat treatment, and perhaps it should not change; the second is the basic layout. Attack changer.
The first type of heat treatment procedure; firstly used to eliminate internal stress; and this internal stress S is caused by different cooling conditions and conditions during the casting process. Arrangement, strength and other mechanical properties; Variety.
For the second type of heat treatment; the base arrangement has undergone significant changes;
(1) Softening annealing: its intention is primarily to differentiate carbides; to reduce its hardness; and to improve the processing function; for spheroidal stone-milled cast iron; its intention is to obtain a ferrite arrangement with a high fertility.
(2) Normal disposal: Firstly, improve or make the casting properties of the cast iron arrangement completely uniform.
(3) Quenching: The first 榱嘶竦 enzyme 叩 捕 捕 捕 捕 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ 蚰ズ
(4) Appearance hardening treatment: Firstly, the hardened layer is obtained; together, the wear resistance of the surface is very high.
(5) Separation and hardening treatment: the first is the enzyme 咔慷榷 咔慷榷 ぢ 2 2. 2. 蚨 (5) 母 母 母.
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