Process for the manufacture of alloy, ring forgings for bearing housings
A manufacturing method and technology for ring forgings, which are applied in the field of ring forgings manufacturing, can solve the problems of large size, mechanical properties of forgings that cannot meet the needs of flywheels, skin clipping and flaw detection exceeding the standard, etc.
Active Publication Date: 2018-05-22
ZHANGJIAGANG HAILU ANNULAR FORGINGS
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Due to the large size of traditional ring forgings used for flywheel bearing seats, problems such as skinning and flaw detection exceeding the standard are likely to occur during the manufacturing process, and the mechanical properties of the obtained forgings are difficult to meet the needs of flywheels
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[0031] The present invention is further illustrated by the following examples: According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the specific material ratios, process conditions and results described in the examples are only used to illustrate the present invention, and should not and will not limit the present invention described in the claims.
[0032] The target size of the ring forging is Φ4631mm×Φ3683mm×398mm.
[0033] A method for manufacturing ring forgings, including:
[0034] (1) Steel ingots smelted with the following ingredients. The smelting method of steel ingots is electric furnace + refining outside furnace + vacuum degassing. The size of the steel ingots is Φ1166mm / Φ1245mm×2240mm;
[0035] C: ≤0.18; Si: ≤0.5; Mn: 0.9~1.65; P≤0.025; S≤0.02; Cu: ≤0.55; Cr: ≤0.3; Ni≤0.5; Nb≤0.05; Ti≤0.05; V≤0.12; Al≥0.02; Mo≤0.1; N≤0.015; CEV≤0.43; the balance is Fe.
[0036] (2), bl...
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Abstract
The invention discloses a manufacturing method of an annular alloy forge piece applied to a bearing seat. The manufacturing method comprises the following steps: (1) smelting a steel ingot, wherein the dimension of the steel ingot is Phi1166mm / Phi1245mmX2240mm; (2) blanking; (3) feeding the steel ingot into a furnace; (4) heating before forging, namely controlling the feed temperature to be smaller than or equal to 400 DEG C, heating for 4h to reach the temperature of 850 DEG C for 4h and maintaining the temperature for 6h; heating for 3h to reach the temperature of 1050 DEG C and maintaining the temperature for 5h; heating for 3h to reach the temperature of 1250 DEG C and maintaining the temperature for 2h; (5) manufacturing a blank. When the method disclosed by the invention is used for manufacturing a forge piece, the problem of generation of skin crush and over-proof detected flows is avoided, and the mechanical properties of the obtained forge piece satisfy the requirements of the bearing seat.
Description
technical field [0001] The present application relates to the technical field of manufacturing ring forgings, in particular to an alloy used for bearing housings and a method for manufacturing ring forgings. Background technique [0002] As we all know, the maglev flywheel energy storage device, also known as the maglev flywheel battery, uses a high-speed rotating flywheel to store energy. It is being favored by various industries for its high specific power, high specific energy, fast charging and discharging, long life and no chemical pollution. The attention of various industries has been used in military industries such as automobiles, trains, aerospace, aviation, and civilian industries such as ports and docks abroad. my country's maglev flywheel energy storage business is also developing rapidly. When the maglev flywheel energy storage device is in use, it needs to be installed on mobile vehicles such as automobiles and trains. [0003] Due to the large size of the t...
Claims
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IPC IPC(8): C22C38/58C22C38/42C22C38/46C22C38/48C22C38/44C22C38/50C22C38/06C22C38/04C22C38/02C22C38/38C22C38/28C22C38/26C22C38/24C22C38/22C22C38/20C22C38/40C22C38/18C22C38/16C22C38/12C22C38/14B21K1/26
CPCB21K1/26C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14C22C38/16C22C38/18C22C38/20C22C38/22C22C38/24C22C38/26C22C38/28C22C38/38C22C38/40C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50C22C38/58
Inventor 范禹刘晔吴剑徐锋陈磊张斌
Owner ZHANGJIAGANG HAILU ANNULAR FORGINGS