CN103861896A - Method for cold leveling of friction surface sheet - Google Patents
Method for cold leveling of friction surface sheet Download PDFInfo
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- CN103861896A CN103861896A CN201410113036.0A CN201410113036A CN103861896A CN 103861896 A CN103861896 A CN 103861896A CN 201410113036 A CN201410113036 A CN 201410113036A CN 103861896 A CN103861896 A CN 103861896A
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Abstract
The invention relates to the technical field of the friction surface sheet production technology, in particular to a method for cold leveling of a friction surface sheet. The method comprises the following steps that a quenched steel sheet is used, and stamping is carried out; after stamping is accomplished, the steel sheet is flatly placed into a leveler to be rolled once; the steel sheet is taken out, and is horizontally rotated by 90 degrees, the steel sheet is flatly placed into the leveler to be rolled again; the steps are repeated, and rolling is carried out for 2-3 times; flatness inspection is carried out after rolling is accomplished. According to the method for cold leveling of the friction surface sheet, the out-of-round rate of steel can be reduced, the whole technological method is simple and convenient to operate, working efficiency is high, the cost is low, particularly, later-period stability of the steel manufactured through the method for cold leveling of the friction surface sheet is remarkably improved, and rebound cannot be easily caused.
Description
Technical field
The present invention relates to the technical field of producing of friction sheets, especially a kind of cold flattening method of friction sheets.
Background technology
Steel plate just, in its production process, often there will be the phenomenon such as wave, local bulge to cause steel out-of-flatness.In the situation that not smoothing, steel are carried out to paster, will cause product quality defective, and production efficiency is low.Existing flattening method has cold more gentle heat smoothing.Heat smoothing is more conventional at home, and the product flatness of its generation is more stable.But it needs repeatedly tempering, processing step complexity, efficiency is not high.Existing cold smoothing is punching press-quenching-smoothing, but steel are inadequate without quenching hardness, directly after punching press, quench again, lose circle rate very high, the relatively hot smoothing effect of existing cold smoothing is high, cost is low, but its stability is also smoothed not as heat, easily rebounds, and the domestic method that there is no solves well at present.
Summary of the invention
In order to overcome the deficiency of existing technology, the invention provides a kind of friction sheets; Cold flattening method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cold flattening method of friction sheets, and its step is as follows:
(1), use quenched steel disc, carry out punching press;
(2), after punching press, steel disc is entirely put into level(l)ing machine roll extrusion one time;
(3), take out steel disc, horizontally rotated 90 °, entirely put into level(l)ing machine and again carry out roll extrusion;
(4), repeat above-mentioned steps, roll extrusion 2 ~ 3 times;
(5), after roll extrusion, carry out flatness inspection.
According to another embodiment of the invention, further comprise that described level(l)ing machine is multiroller flattening machine, top and bottom all at least have 6 ~ 8 rollers.
According to another embodiment of the invention, further comprise that described inspection method is: steel disc is placed on infrared detection equipment, detects its flatness.
The invention has the beneficial effects as follows, the present invention can reduce the mistake circle rate of steel, and whole process is simple, convenient operation, operating efficiency is high, and cost is low, the steel stability at later stage of particularly finally preparing by this cold flattening method is significantly improved, no longer easily bounce-back.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is steel disc structural representation of the present invention.
Fig. 2 is that steel disc flatness of the present invention detects schematic diagram.
Fig. 3 is level(l)ing machine structural representation of the present invention.
The specific embodiment
A cold flattening method for friction sheets, its step is as follows:
(1), use quenched steel disc, carry out punching press;
(2), after punching press, steel disc is entirely put into level(l)ing machine roll extrusion one time;
(3), take out steel disc, horizontally rotated 90 °, entirely put into level(l)ing machine and again carry out roll extrusion;
(4), repeat above-mentioned steps, roll extrusion 2 ~ 3 times;
(5), after roll extrusion, carry out flatness inspection.
Below in conjunction with drawings and Examples 1, the present invention is further described.
As Fig. 1, be steel disc material of the present invention, No. 65 manganese steel of the present embodiment buying, as steel disc, carry out cold smoothing.Cold smoothing is the complete steel plate of quenching of buying, returns factory's punching press, and the punching press again of first quenching can greatly reduce and lose circle rate, and its cost is low, and efficiency is high.The pressing equipment of the present embodiment is common punching cylinder punching press,, carry out 150 tons of pure pressurizations, then smooth.
If Fig. 3 is the application's level(l)ing machine, it is multiple roll levelling machine, and its top and bottom are equipped with 6 ~ 8 rollers, and A is entrance, and B, for outlet, enters steel disc from A, carry out two-sided roll extrusion.After one time, steel disc is horizontally rotated to 90 °, again carry out two-sided roll extrusion, so circulate 2 ~ 3 times.
After smoothing, steel disc can adopt infrared equipment to carry out infrared smoothing, checks whether it has arrived smooth.Simply, multiple steel discs can be stacked, manual pressing detection, without rocking and rattling, illustrates that between sheet and sheet, laminating is tightr, and it is smooth, as shown in Figure 2.Common steel plate flatness need to be in 40 left and right.
The present invention can reduce the mistake circle rate of steel, and whole process is simple, convenient operation, and operating efficiency is high, and cost is low, and the steel stability at later stage of particularly finally preparing by this cold flattening method is significantly improved, no longer easily bounce-back.
Claims (3)
1. a cold flattening method for friction sheets, is characterized in that, its step is as follows:
(1), use quenched steel disc, carry out punching press;
(2), after punching press, steel disc is entirely put into level(l)ing machine roll extrusion one time;
(3), take out steel disc, horizontally rotated 90 °, entirely put into level(l)ing machine and again carry out roll extrusion;
(4), repeat above-mentioned steps, roll extrusion 2 ~ 3 times;
(5), after roll extrusion, carry out flatness inspection.
2. the cold flattening method of friction sheets according to claim 1, is characterized in that, described level(l)ing machine is multiroller flattening machine, and top and bottom all at least have 6 ~ 8 rollers.
3. the cold flattening method of friction sheets according to claim 1, is characterized in that, described inspection method is: steel disc is placed on infrared detection equipment, detects its flatness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113036.0A CN103861896A (en) | 2014-03-25 | 2014-03-25 | Method for cold leveling of friction surface sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113036.0A CN103861896A (en) | 2014-03-25 | 2014-03-25 | Method for cold leveling of friction surface sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103861896A true CN103861896A (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410113036.0A Pending CN103861896A (en) | 2014-03-25 | 2014-03-25 | Method for cold leveling of friction surface sheet |
Country Status (1)
| Country | Link |
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| CN (1) | CN103861896A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950176A (en) * | 2012-12-12 | 2013-03-06 | 西华大学 | Dual-roller full-automatic hydraulic rolling machine |
| CN202824254U (en) * | 2012-08-14 | 2013-03-27 | 苏州天原设备科技有限公司 | Fast-feeding bump-cutter machine |
| CN103212606A (en) * | 2013-05-02 | 2013-07-24 | 张家港市金邦铝业有限公司 | Continuous leveling device |
| CN103624169A (en) * | 2013-12-13 | 2014-03-12 | 吉林博仁科技股份有限公司 | Process for manufacturing stamping die and process for producing pedal bracket thereof |
-
2014
- 2014-03-25 CN CN201410113036.0A patent/CN103861896A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202824254U (en) * | 2012-08-14 | 2013-03-27 | 苏州天原设备科技有限公司 | Fast-feeding bump-cutter machine |
| CN102950176A (en) * | 2012-12-12 | 2013-03-06 | 西华大学 | Dual-roller full-automatic hydraulic rolling machine |
| CN103212606A (en) * | 2013-05-02 | 2013-07-24 | 张家港市金邦铝业有限公司 | Continuous leveling device |
| CN103624169A (en) * | 2013-12-13 | 2014-03-12 | 吉林博仁科技股份有限公司 | Process for manufacturing stamping die and process for producing pedal bracket thereof |
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Application publication date: 20140618 |