CN100551608C - A kind of processing technology of support bar - Google Patents
A kind of processing technology of support bar Download PDFInfo
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- CN100551608C CN100551608C CNB2008100470707A CN200810047070A CN100551608C CN 100551608 C CN100551608 C CN 100551608C CN B2008100470707 A CNB2008100470707 A CN B2008100470707A CN 200810047070 A CN200810047070 A CN 200810047070A CN 100551608 C CN100551608 C CN 100551608C
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- support bar
- repeatedly
- cross sectional
- sectional shape
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Abstract
The invention discloses a kind of processing technology of support bar, it comprises following processing step: round steel or square steel blanking; Heating; Repeat-rolling arrives than the big monolateral 0.6～0.9mm of drawing cross sectional shape; Broaching repeatedly, non-oxidation annealing reaches the drawing cross sectional shape repeatedly; Crop, turning two head threads reach the drawing requirement.Technology of the present invention has remarkable result than traditional handicraft: the stock utilization height generally can reach 80～85%; The not processing repeatedly of main equipment, processing cost reduces by 40% approximately; The machining accuracy height is made all in batch in the margin of tolerance, and the tolerance basically identical.The product of all support bar classes all can be by explained hereafter of the present invention.
Description
Technical field
The present invention relates to a kind of processing technology of strip metalwork, specifically a kind of processing technology of support bar.
Background technology
Support bar is the strength member of large-size machine and generator, and use has a large capacity and a wide range.All be to use traditional processes manufacturing all the time.Its machining process is:
1., steel plate cutting;
2., annealing;
3., proofread and correct;
4., plane on the double housing planer repeatedly, reach cross sectional shape;
5., turning two head threads reach the drawing requirement.
There is following shortcoming in the processing technology of this support bar:
1., raw materials consumption is big, the utilization rate of material generally has only about 50%;
2., need main equipment to process repeatedly, the processing cost height;
3., machining accuracy is low.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of processing technology of support bar, it saves material, cuts down finished cost, and can guarantee machining accuracy.
In order to achieve the above object, technical scheme of the present invention is that a kind of processing technology of support bar is characterized in that: it comprises following processing step:
1., round steel or square steel blanking;
2., heating;
3., repeat-rolling arrives than the big monolateral 0.6～0.9mm of drawing cross sectional shape;
4., broaching repeatedly, non-oxidation annealing reaches the drawing cross sectional shape repeatedly;
5., crop, turning two head threads reach the drawing requirement.
Technology of the present invention has following remarkable result than traditional handicraft:
1., the stock utilization height, generally can reach 80～85%;
2., the not processing repeatedly of main equipment, processing cost reduces by 40% approximately;
3., the machining accuracy height, make in batch all in the margin of tolerance, and the tolerance basically identical.
Description of drawings
Fig. 1 is the support bar front view of processes of the present invention;
Fig. 2 is that the A of Fig. 1 is to diagrammatic sketch.
The specific embodiment
Below in conjunction with accompanying drawing technology of the present invention is further specified.The shape of support bar partly is of a size of the high 65mm of wide 50mm as rectangle in the middle of making support bar as depicted in figs. 1 and 2, when length overall is the 3430mm support bar, can finish by following processing step:
1., be the blanking of 80～85mm square steel with the Ф 90mm round steel or the length of side, length direction leaves surplus by the machining requirement;
2., use gas-fired furnace, be heated to about 1050～1100 ℃;
3., the milling train repeat-rolling with Ф 250 rolls arrives than the big monolateral 0.6～0.9mm of drawing cross sectional shape;
4., with 50 tons to 100 tons broaching machines broach repeatedly, with protective pot protection in cabinet-type electric furnace repeatedly non-oxidation annealing reach the drawing cross sectional shape;
5., crop, turning two head threads reach the drawing requirement.
According to process of the present invention, but the equal processing of the strip metal processing piece of similar support bar shape is come out.
Claims (1)
1, a kind of processing technology of support bar is characterized in that: it comprises following processing step:
1., round steel or square steel blanking;
2., heating;
3., repeat-rolling arrives than the big monolateral 0.6～0.9mm of drawing cross sectional shape;
4., broaching repeatedly, non-oxidation annealing reaches the drawing cross sectional shape repeatedly;
5., crop, turning two head threads reach the drawing requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100470707A CN100551608C (en) | 2008-03-11 | 2008-03-11 | A kind of processing technology of support bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100470707A CN100551608C (en) | 2008-03-11 | 2008-03-11 | A kind of processing technology of support bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101244510A CN101244510A (en) | 2008-08-20 |
| CN100551608C true CN100551608C (en) | 2009-10-21 |
Family
ID=39945307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100470707A Active CN100551608C (en) | 2008-03-11 | 2008-03-11 | A kind of processing technology of support bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100551608C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101854096B (en) * | 2009-03-31 | 2013-08-21 | 上海电气集团上海电机厂有限公司 | Method for manufacturing support bar for positioning stator core of large-size asynchronous motor |
-
2008
- 2008-03-11 CN CNB2008100470707A patent/CN100551608C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101244510A (en) | 2008-08-20 |
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