CN106475416A - Production method of cold-rolled electrical steel with excellent punching performance - Google Patents
Production method of cold-rolled electrical steel with excellent punching performance Download PDFInfo
- Publication number
- CN106475416A CN106475416A CN201510523675.9A CN201510523675A CN106475416A CN 106475416 A CN106475416 A CN 106475416A CN 201510523675 A CN201510523675 A CN 201510523675A CN 106475416 A CN106475416 A CN 106475416A
- Authority
- CN
- China
- Prior art keywords
- coating
- cold
- rolled
- electrical steel
- organic matter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000004080 punching Methods 0.000 title claims abstract description 14
- 229910000976 Electrical steel Inorganic materials 0.000 title abstract 2
- 238000000576 coating method Methods 0.000 claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 239000005416 organic matter Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 claims abstract description 5
- 230000003746 surface roughness Effects 0.000 claims abstract description 4
- 238000005097 cold rolling Methods 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 4
- 239000000314 lubricant Substances 0.000 abstract description 2
- 239000012299 nitrogen atmosphere Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002436 steel type Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/02—Rolling special iron alloys, e.g. stainless steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention provides a production method of cold-rolled electrical steel with excellent punching performance, and for cold-rolled non-oriented electrical steel coating products with organic coatings and semi-organic coatings, a steel plate is rolled by adopting pitted surfaces, and the surface roughness index is controlled to be 0.60-3.00 mu m; the coating drying furnace and the sintering furnace adopt 100% nitrogen atmosphere, and the temperature is controlled to be reduced by 25-100 ℃ compared with the conventional temperature of the same steel type; the organic matter content of the sintered coating reaches 15-100 percent; the thickness of the single-sided film is increased by 0.10 to 2.00 mu m based on the roughness index. The coating of the cold-rolled non-oriented electrical steel coating product has excellent comprehensive performance, and a user can omit the use of a lubricant by using a high-speed punch press for production, thereby reducing the process links of oil removal and anticorrosion treatment in the subsequent process; the punching service life of the die is prolonged by 50-100 ten thousand times by one production cycle, the processing efficiency is improved, and the production cost is reduced; thereby directly improving the market competitiveness of the product.
Description
Technical field
The invention belongs to steel rolling process technical field, more particularly to a kind of cold rolling electrician of punching function admirable
The production method of steel coating product.
Background technology
Electrical sheet is wide variety of metal function soft magnetic materials, middle and small motor and household electrical appliances motor in downstream
High speed development process in, generally carry out the processing of stator-rotor iron core using high velocity ram machine, to cold rolling electrician
Product made from steel proposes higher and higher punching performance requirement.
Content of the invention
The present invention is intended to provide a kind of product coating high comprehensive performance, is suitable for high velocity ram machine and uses, can improve
User's production efficiency, the cold rolling electric production method of cost-effective punching function admirable.
For this purpose, the technical solution taken by the present invention is：
A kind of cold rolling electric production method of punching function admirable, it is characterised in that coat type is organic
Coating and half organic coating, i.e. original paint are that organic matter or organic matter mix composition with inorganic matter in constituting
The concrete production method of cold rolling non-oriented electrical steel coating product be：
1st, cold-rolled process light plate is rolled using pitted skin, steel surface roughness norm controlling 0.60～
3.00μm.
2nd, coated and dried stove and sintering furnace adopt 100% blanket of nitrogen, and control temperature ratio is dropped with steel grade ordinary temperature
Low 25～100 DEG C.
3rd, improve the content of organic matter that film forming is crosslinked during coating is constituted, make the content of organic matter of coating after sintering
Reach 15%～100%.
4th, coating layer thickness control：One side thickness increases by 0.10 on the basis of the roughness index of said method 1～
2.00μm.
Beneficial effects of the present invention are：
Cold rolling non-oriented electrical steel coating product properties of coating of the present invention is excellent, and user uses high velocity ram machine
Production can cancel the use of lubricant, reduce subsequent process oil removing and anticorrosion treatment technology link；Mould punching
One production cycle of life-span extends 50～1,000,000 times, improves working (machining) efficiency, reduces production cost；So as to straight
Connect the market competitiveness for improving product.
Specific embodiment
Below, by taking typical trade mark 50AW800 production as an example, 400～500 DEG C of drying oven ordinary temperature,
500～600 DEG C of sintering furnace ordinary temperature, in conjunction with comparative example, the invention will be further described with embodiment.
Comparative example：
Steel plate is rolled using light face, and roughness is 0.51 μm, and normal production coating layer thickness target control is
1.2 μm, 275 Ω mm of interface resistance2/ piece.Temperature Control of Drying Oven sinters furnace temperature control at 400 DEG C
, at 560 DEG C, drying oven and sintering furnace entrance and outlet are for opening wide fire door unprotect atmosphere for system.According to household electrical appliances electricity
Machine user's half organic coating use requirement, the easy holiday when shallow layer is produced, thick coating are easy to fall off when controlling,
After sintering, the coating content of organic matter is 12%.User's mould usual punching life-span 2,800,000 times, user's punching
During steel band spraying lubrication is carried out using steam coal oil mixture, the later stage need low-temperature sintering oil removing or not oil removing,
But need to be to prevent iron core corrosion from adopting preservative treatment.
Embodiment：
According to user's request and interface resistance index, steel plate is rolled using pitted skin, control surface roughness
Index is 1.1 μm, increases half organic coating organic matter proportioning, dries 380 DEG C of furnace temperature, sinters furnace temperature
510 DEG C of degree, during in stove in the middle of be passed through the protection of 100% nitrogen, coating control thickness targets are 1.85 μm,
Properties of coating detects excellent, 420 Ω mm of interface resistance2/ piece, after sintering, the coating content of organic matter is
25%, user's mould punching life-span 3,500,000 times, after user's punching, it is not required to oil removing and preservative treatment.
Claims (1)
1. a kind of cold rolling electric production method of punching function admirable, it is characterised in that coat type is for having
Organic coating and half organic coating, i.e. original paint are that organic matter or organic matter mix group with inorganic matter in constituting
The concrete production method of the cold rolling non-oriented electrical steel coating product for becoming is：
(1) cold-rolled process light plate is rolled using pitted skin, steel surface roughness norm controlling 0.60～
3.00μm；
(2) coated and dried stove and sintering furnace adopt 100% blanket of nitrogen, and control temperature ratio is with steel grade ordinary temperature
Reduce by 25～100 DEG C；
(3) content of organic matter for being crosslinked film forming during coating is constituted is improved, and after making sintering, the organic matter of coating contains
Amount reaches 15%～100%；
(4) coating layer thickness control：One side thickness increases by 0.10 on the basis of said method (1) roughness index～
2.00μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523675.9A CN106475416A (en) | 2015-08-24 | 2015-08-24 | Production method of cold-rolled electrical steel with excellent punching performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523675.9A CN106475416A (en) | 2015-08-24 | 2015-08-24 | Production method of cold-rolled electrical steel with excellent punching performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106475416A true CN106475416A (en) | 2017-03-08 |
Family
ID=58234485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510523675.9A Pending CN106475416A (en) | 2015-08-24 | 2015-08-24 | Production method of cold-rolled electrical steel with excellent punching performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106475416A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027196A (en) * | 2001-07-16 | 2003-01-29 | Nippon Steel Corp | Method of manufacturing ultra-high mangnetic flux density grain-oriented silicon steel sheet having high magnetic flerd iron loss and excellent film characteristic |
| CN1903498A (en) * | 2005-07-28 | 2007-01-31 | 宝山钢铁股份有限公司 | Method for producing non-orientation electric steel plates with insulation coatings |
| CN101713047A (en) * | 2009-12-22 | 2010-05-26 | 武汉钢铁(集团)公司 | Cr-contained non-oriented electrical steel and production method thereof |
| CN102615031A (en) * | 2011-01-30 | 2012-08-01 | 宝山钢铁股份有限公司 | Production method of environmental-friendly extremely-thick coating electric steel product |
| CN102989647A (en) * | 2012-12-14 | 2013-03-27 | 武汉钢铁(集团)公司 | Method for drying oriented silicon steel plate insulation coating in combined mode |
| CN103028531A (en) * | 2011-09-30 | 2013-04-10 | 宝山钢铁股份有限公司 | Production method for thickening type half organic coating non-oriented silicon steel |
| CN103692726A (en) * | 2013-12-19 | 2014-04-02 | 重庆万达薄板有限公司 | Chrome-free insulating coating electrical steel strip and production method thereof |
-
2015
- 2015-08-24 CN CN201510523675.9A patent/CN106475416A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027196A (en) * | 2001-07-16 | 2003-01-29 | Nippon Steel Corp | Method of manufacturing ultra-high mangnetic flux density grain-oriented silicon steel sheet having high magnetic flerd iron loss and excellent film characteristic |
| CN1903498A (en) * | 2005-07-28 | 2007-01-31 | 宝山钢铁股份有限公司 | Method for producing non-orientation electric steel plates with insulation coatings |
| CN101713047A (en) * | 2009-12-22 | 2010-05-26 | 武汉钢铁(集团)公司 | Cr-contained non-oriented electrical steel and production method thereof |
| CN102615031A (en) * | 2011-01-30 | 2012-08-01 | 宝山钢铁股份有限公司 | Production method of environmental-friendly extremely-thick coating electric steel product |
| CN103028531A (en) * | 2011-09-30 | 2013-04-10 | 宝山钢铁股份有限公司 | Production method for thickening type half organic coating non-oriented silicon steel |
| CN102989647A (en) * | 2012-12-14 | 2013-03-27 | 武汉钢铁(集团)公司 | Method for drying oriented silicon steel plate insulation coating in combined mode |
| CN103692726A (en) * | 2013-12-19 | 2014-04-02 | 重庆万达薄板有限公司 | Chrome-free insulating coating electrical steel strip and production method thereof |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170308 |
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