CN105200333A - Method for preparing cold roll of lithium battery protection plate - Google Patents
Method for preparing cold roll of lithium battery protection plate Download PDFInfo
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- CN105200333A CN105200333A CN201510544402.2A CN201510544402A CN105200333A CN 105200333 A CN105200333 A CN 105200333A CN 201510544402 A CN201510544402 A CN 201510544402A CN 105200333 A CN105200333 A CN 105200333A
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Abstract
The invention discloses a method for preparing a cold roll of a lithium battery protection plate. The cold roll is prepared from, by mass, 0.8%-0.9% of C, 0.4%-1.0% of Si, 0.3%-0.7% of Mn, 3.0%-4.5% of Cr, 0.3%-0.6% of Ni, 0.3%-0.8% of Mo, 0.2%-0.5% of V, 0.03% of P or less, 0.03% of S or less and the balance Fe. The cold roll prepared through the materials is high in rigidity and abrasion resistance, under the use condition of the same strength, the service life of the cold roll prepared through the method is 45%-55% longer than that of an original cold roll prepared through common chrome steel materials, and the rigidity of the surface layer of a roll body of the roll body can be 97 HSD to 105 HSD.
Description
Technical field
The present invention relates to a kind of cold roll making method of lithium battery protection board.
Background technology
Along with people to fast, the requirement of trip mode is easily more and more stronger, the use of this vehicles of electric bicycle is also more and more general.The Power output of electric bicycle mainly relies on store battery, and the store battery used on electric bicycle at present mainly contains lead acid cell and lithium cell.Traditional storage battery mostly is lead acid cell, but because lead acid cell weight is large, cause dismounting, carrying inconvenience, and easily cause environmental pollution, and when adopting this efficient, light, free of contamination energy storage material of lithium cell, electric bicycle quality is lightened, therefore more and more welcomed by the people.Lithium cell also replaces the status of lead acid cell gradually, and lithium cell is primarily of lithium cell core and lithium battery protection board composition.
The lithium battery protection board produced required for lithium cell needs work steady in a long-term under the environment of-20 ~ 60 DEG C, therefore higher to the specification of quality of lithium battery protection board, also more and more higher to the specification of quality of the cold roll used when producing lithium battery protection board, lithium battery protection board adopts two rolling systems to produce usually, current domestic and international market is used for manufacture material mainly Cr2, Cr3, Cr5 series of cold roll, in the operation of rolling, there will be the phenomenon occurring between cold roll and material to be rolled to skid; Putting into production use in the near future, the surfaceness of cold roll just sharply reduces, and affect surface quality and the conforming product rate of product, and mostly these phenomenons are to cause because the wearing no resistance of cold roll, surfaceness hold facility are poor.
Summary of the invention
The object of the invention is the problem solving cold roll high rigidity and high-wear resistance.
The technical solution used in the present invention is: the cold roll making method of lithium battery protection board; chemical composition in described cold roll and mass percentage thereof are: C0.8 ~ 0.9%; Si0.4 ~ 1.0%, Mn0.3 ~ 0.7%, Cr3.0 ~ 4.5%; Ni0.3 ~ 0.6%; Mo0.3 ~ 0.8%, V0.2 ~ 0.5%, P≤0.03%; S≤0.03%, all the other are Fe.
As a further improvement on the present invention, the manufacture method of cold roll comprises following processing step:
A, founding electroslag ingot: production desired raw material is smelted into molten steel in electric arc furnace, be placed in LF+VD refining furnace and complete refining by molten steel,
After liquid steel refining completes, be molded into electrode ingot, utilize electro-slag re-melting method to make electroslag ingot afterwards;
B, forging roller stock: by electroslag ingot after the forging process such as insulation, jumping-up and pulling make forging stock, carrying out roughing obtains roller stock;
C, modifier treatment: modifier treatment is carried out to the roller stock that step B obtains: quenching temperature is 850 ~ 950 DEG C; Carry out temper afterwards, tempering temperature 300 ~ 400 DEG C, then roller stock is carried out surface induction hardening process, quenching temperature is 950 ~ 1000 DEG C;
D, deepfreeze: the roller stock after surface induction hardening carries out deepfreeze after being cooled to envrionment temperature immediately, deepfreeze temperature is-80 ~-30 DEG C, soaking time 3 ~ 6h;
E, temper: by complete the roller stock after deepfreeze place slowly be warming up to envrionment temperature in atmosphere after, carry out temper in time: tempering temperature is 125 ~ 135 DEG C, soaking time is 80 ~ 110h.
The invention has the beneficial effects as follows: adopt the cold roll that material of the present invention is obtained, there is higher hardness and wear resistance, under the working conditions of same intensity, the work-ing life of the cold roll obtained than original common chromium steel series material in work-ing life of the cold roll that the present invention obtains improves 45 ~ 55%, and cold roll body of roll surface hardness can reach 97 ~ 105HSD.
Embodiment
Embodiment 1:
The cold roll making method of lithium battery protection board, the chemical composition in cold roll and mass percentage thereof are: C0.8 ~ 0.9%, Si0.4 ~ 1.0%, Mn0.3 ~ 0.7%; Cr3.0 ~ 4.5%, Ni0.3 ~ 0.6%, Mo0.3 ~ 0.8%, V0.2 ~ 0.5%; P≤0.03%, S≤0.03%, all the other are Fe.
The manufacture method of cold roll comprises following processing step:
A, founding electroslag ingot: production desired raw material is smelted into molten steel in electric arc furnace, be placed in LF+VD refining furnace and complete refining by molten steel,
After liquid steel refining completes, be molded into electrode ingot, utilize electro-slag re-melting method to make electroslag ingot afterwards;
B, forging roller stock: by electroslag ingot after the forging process such as insulation, jumping-up and pulling make forging stock, carrying out roughing obtains roller stock;
C, modifier treatment: modifier treatment is carried out to the roller stock that step B obtains: quenching temperature is 850 ~ 950 DEG C; Carry out temper afterwards, tempering temperature 300 ~ 400 DEG C, then roller stock is carried out surface induction hardening process, quenching temperature is 950 ~ 1000 DEG C;
D, deepfreeze: the roller stock after surface induction hardening carries out deepfreeze after being cooled to envrionment temperature immediately, deepfreeze temperature is-80 ~-30 DEG C, soaking time 3 ~ 6h;
E, temper: by complete the roller stock after deepfreeze place slowly be warming up to envrionment temperature in atmosphere after, carry out temper in time: tempering temperature is 125 ~ 135 DEG C, soaking time is 80 ~ 110h;
Chemical composition analysis is carried out to the electroslag ingot that steps A obtains, obtains chemical composition in electroslag ingot and mass percentage is: C0.8%, Si0.5%, Mn0.3%, Cr3.0%, Ni0.35%, Mo0.3%, V0.2%, P0.03%, S0.03%.
Embodiment 2:
The cold roll making method of lithium battery protection board, the chemical composition in cold roll and mass percentage thereof are: C0.8 ~ 0.9%, Si0.4 ~ 1.0%, Mn0.3 ~ 0.7%; Cr3.0 ~ 4.5%, Ni0.3 ~ 0.6%, Mo0.3 ~ 0.8%, V0.2 ~ 0.5%; P≤0.03%, S≤0.03%, all the other are Fe.
The manufacture method of cold roll comprises following processing step:
A, founding electroslag ingot: production desired raw material is smelted into molten steel in electric arc furnace, be placed in LF+VD refining furnace and complete refining by molten steel,
After liquid steel refining completes, be molded into electrode ingot, utilize electro-slag re-melting method to make electroslag ingot afterwards;
B, forging roller stock: by electroslag ingot after the forging process such as insulation, jumping-up and pulling make forging stock, carrying out roughing obtains roller stock;
C, modifier treatment: modifier treatment is carried out to the roller stock that step B obtains: quenching temperature is 850 ~ 950 DEG C; Carry out temper afterwards, tempering temperature 300 ~ 400 DEG C, then roller stock is carried out surface induction hardening process, quenching temperature is 950 ~ 1000 DEG C;
D, deepfreeze: the roller stock after surface induction hardening carries out deepfreeze after being cooled to envrionment temperature immediately, deepfreeze temperature is-80 ~-30 DEG C, soaking time 3 ~ 6h;
E, temper: by complete the roller stock after deepfreeze place slowly be warming up to envrionment temperature in atmosphere after, carry out temper in time: tempering temperature is 125 ~ 135 DEG C, soaking time is 80 ~ 110h;
Chemical composition analysis is carried out to the electroslag ingot that steps A obtains, obtains chemical composition in electroslag ingot and mass percentage is: C0.9%, Si0.9%, Mn0.6%, Cr3.5%, Ni0.6%, Mo0.7%, V0.4%, P0.03%, S0.03%.
Above embodiments of the present invention are described, but the invention is not restricted to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Claims (2)
1. the cold roll making method of lithium battery protection board; it is characterized in that: the chemical composition in described cold roll and mass percentage thereof are: C0.8 ~ 0.9%; Si0.4 ~ 1.0%, Mn0.3 ~ 0.7%, Cr3.0 ~ 4.5%; Ni0.3 ~ 0.6%; Mo0.3 ~ 0.8%, V0.2 ~ 0.5%, P≤0.03%; S≤0.03%, all the other are Fe.
2. the cold roll making method of lithium battery protection board according to claim 1, is characterized in that the manufacture method of described cold roll comprises following processing step:
A, founding electroslag ingot: production desired raw material is smelted into molten steel in electric arc furnace, be placed in LF+VD refining furnace and complete refining by molten steel,
After liquid steel refining completes, be molded into electrode ingot, utilize electro-slag re-melting method to make electroslag ingot afterwards;
B, forging roller stock: by electroslag ingot after the forging process such as insulation, jumping-up and pulling make forging stock, carrying out roughing obtains roller stock;
C, modifier treatment: modifier treatment is carried out to the roller stock that step B obtains: quenching temperature is 850 ~ 950 DEG C; Carry out temper afterwards, tempering temperature 300 ~ 400 DEG C, then roller stock is carried out surface induction hardening process, quenching temperature is 950 ~ 1000 DEG C;
D, deepfreeze: the roller stock after surface induction hardening carries out deepfreeze after being cooled to envrionment temperature immediately, deepfreeze temperature is-80 ~-30 DEG C, soaking time 3 ~ 6h;
E, temper: by complete the roller stock after deepfreeze place slowly be warming up to envrionment temperature in atmosphere after, carry out temper in time: tempering temperature is 125 ~ 135 DEG C, soaking time is 80 ~ 110h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544402.2A CN105200333A (en) | 2015-08-31 | 2015-08-31 | Method for preparing cold roll of lithium battery protection plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510544402.2A CN105200333A (en) | 2015-08-31 | 2015-08-31 | Method for preparing cold roll of lithium battery protection plate |
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| CN105200333A true CN105200333A (en) | 2015-12-30 |
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| CN201510544402.2A Pending CN105200333A (en) | 2015-08-31 | 2015-08-31 | Method for preparing cold roll of lithium battery protection plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220775A (en) * | 2017-12-29 | 2018-06-29 | 中钢集团邢台机械轧辊有限公司 | A kind of copper foil operation roll of mill |
| CN110656294A (en) * | 2019-10-31 | 2020-01-07 | 宝钢轧辊科技有限责任公司 | Working roll special for tin-plating finisher and manufacturing method thereof |
| CN114318138A (en) * | 2021-11-26 | 2022-04-12 | 中钢集团邢台机械轧辊有限公司 | High-hardness large-scale pole piece roller material and pole piece roller preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104669A (en) * | 1985-07-08 | 1987-02-18 | 查瓦尼·凯丁 | Forged roll for cold rolling |
| CN1840730A (en) * | 2005-03-29 | 2006-10-04 | 宝钢集团常州轧辊制造公司 | Alloy for producing cold rolled working roll and method for producing same |
| CN103397267A (en) * | 2013-07-12 | 2013-11-20 | 中钢集团邢台机械轧辊有限公司 | Cold roll for rolling lithium battery guard plate and manufacturing method thereof |
-
2015
- 2015-08-31 CN CN201510544402.2A patent/CN105200333A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104669A (en) * | 1985-07-08 | 1987-02-18 | 查瓦尼·凯丁 | Forged roll for cold rolling |
| CN1840730A (en) * | 2005-03-29 | 2006-10-04 | 宝钢集团常州轧辊制造公司 | Alloy for producing cold rolled working roll and method for producing same |
| CN103397267A (en) * | 2013-07-12 | 2013-11-20 | 中钢集团邢台机械轧辊有限公司 | Cold roll for rolling lithium battery guard plate and manufacturing method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220775A (en) * | 2017-12-29 | 2018-06-29 | 中钢集团邢台机械轧辊有限公司 | A kind of copper foil operation roll of mill |
| CN110656294A (en) * | 2019-10-31 | 2020-01-07 | 宝钢轧辊科技有限责任公司 | Working roll special for tin-plating finisher and manufacturing method thereof |
| CN110656294B (en) * | 2019-10-31 | 2021-08-03 | 宝钢轧辊科技有限责任公司 | Working roll special for tin-plating finisher and manufacturing method thereof |
| CN114318138A (en) * | 2021-11-26 | 2022-04-12 | 中钢集团邢台机械轧辊有限公司 | High-hardness large-scale pole piece roller material and pole piece roller preparation method |
| CN114318138B (en) * | 2021-11-26 | 2023-12-12 | 中钢集团邢台机械轧辊有限公司 | High-hardness large-scale pole piece roller material and pole piece roller preparation method |
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