CN109402509A - One kind producing molding mould steel for lithium battery - Google Patents

One kind producing molding mould steel for lithium battery Download PDF

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Publication number
CN109402509A
CN109402509A CN201811351938.2A CN201811351938A CN109402509A CN 109402509 A CN109402509 A CN 109402509A CN 201811351938 A CN201811351938 A CN 201811351938A CN 109402509 A CN109402509 A CN 109402509A
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mould steel
lithium battery
steel
surplus
molding mould
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CN201811351938.2A
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Chinese (zh)
Inventor
徐林
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Jiangsu Wanda New Energy Polytron Technologies Inc
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Jiangsu Wanda New Energy Polytron Technologies Inc
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Priority to CN201811351938.2A priority Critical patent/CN109402509A/en
Publication of CN109402509A publication Critical patent/CN109402509A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/007—Heat treatment of ferrous alloys containing Co
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

It is provided by the invention a kind of for the molding mould steel of lithium battery production, component including following percentage: C 1.70-2.00%, Si 0.76-0.89%, Cr 12.2-12.8%, Mn 0.44-0.58%, Mo 3.32-3.68%, V 2.45-2.86%, Ni 1.22-1.58%, Cu 1.21-1.46%, W 0.82-1.22%, Co 0.51-0.61%, Rh 0.26-0.38%, Zn 0.84-0.96%, Zr 0.32-0.38%, Pb 0.46-0.58%, Be 0.14-0.18%, Re 0.22-0.30%, Nd 0.44-0.52%, P≤0.02%, S≤0.02%, surplus are iron.The present invention also provides the preparation methods of the above-mentioned mould steel for lithium battery cutting machine.The mould steel wearability is good, hardness is high, elongation percentage is high, good toughness, impact resistance are good, heat-treatment distortion is small, long service life.

Description

One kind producing molding mould steel for lithium battery
Technical field
The present invention relates to field of new materials, in particular to a kind of to produce molding mould steel for lithium battery.
Background technique
Mold is machinery, electronics, the fundamental technology equipment industrial products such as automobile, communicate, add some points.Due to using mold into Row machine-shaping have high efficiency and economy, mold in material machine-shaping industry using very universal.Make in mold With in the process, quality is affected by various factors, such as shape design, processing quality, surface treatment situation, real work ginseng Number etc., wherein influencing maximum to be material used in mold body.
Alloy grinding tool steel can part be cold work die steel, hot die steel and plastic die steel, wherein cold work die steel is main For manufacturing the various molds by metal material compression moulding at room temperature.For cold mold material, wear-resisting property, punching Hit toughness, hardness is most important three performance parameters index.However, wear-resisting property, impact are tough generally for same steel grade Property and hardness cannot concurrently reach most preferably, and worst impact flexibility performance is often generally yielded when hardness reaches best, and resistance to Mill performance is influenced by hardness and impact flexibility simultaneously, and toughness properties then can guarantee the stability and safety of wear process Property.
Summary of the invention
Technical problem: in order to solve the defects of prior art, it is molding for lithium battery production that the present invention provides one kind Mould steel.
Technical solution: it is provided by the invention a kind of for the molding mould steel of lithium battery production, including following percentage Component: C 1.70-2.00%, Si 0.76-0.89%, Cr 12.2-12.8%, Mn 0.44-0.58%, Mo 3.32- 3.68%, V 2.45-2.86%, Ni 1.22-1.58%, Cu 1.21-1.46%, W 0.82-1.22%, Co 0.51- 0.61%, Rh 0.26-0.38%, Zn 0.84-0.96%, Zr 0.32-0.38%, Pb 0.46-0.58%, Be 0.14- 0.18%, Re 0.22-0.30%, Nd 0.44-0.52%, P≤0.02%, S≤0.02%, surplus is iron.
Preferably, molding mould steel is produced for lithium battery, the component including following percentage: C 1.82-1.88%, Si 0.80-0.84%, Cr 12.4-12.6%, Mn 0.48-0.50%, Mo 3.44-3.50%, V 2.60-2.68%, Ni 1.38-1.42%, Cu 1.29-1.36%, W 0.96-1.05%, Co 0.55-0.58%, Rh 0.30-0.34%, Zn 0.88-0.92%, Zr 0.34-0.36%, Pb 0.48-0.52%, Be 0.14-0.18%, Re 0.24-0.26%, Nd 0.46-0.50%, P≤0.02%, S≤0.02%, surplus are iron.
Preferably, molding mould steel, the component including following percentage: C 1.85%, Si are produced for lithium battery 0.82%, Cr 12.5%, Mn 0.49%, Mo 3.47%, V 2.64%, Ni 1.38-1.42%, Cu 1.32%, W 0.99%, Co 0.56%, Rh 0.32%, Zn 0.89%, Zr 0.35%, Pb 0.49%, Be 0.16%, Re 0.25%, Nd 0.48%, P≤0.02%, S≤0.02%, surplus are iron.
The present invention also provides the preparation methods of the above-mentioned mould steel for lithium battery cutting machine, comprising the following steps:
(1) it sorting: by each element parts by weight sorting of mould steel to be prepared, while controlling the harmful element in raw material and containing Amount, in which: Cu≤0.25%, P≤0.02%, S≤0.02%；
(2) it is heated to 1600-1700 DEG C from room temperature, melts each component as in medium-frequency induction furnace in each raw material, it is permanent Warm 5-10min, molten steel are come out of the stove, and are cast, cooling；
(3) it is heat-treated: by the mold steel heat treatment after step (2) casting: being first heated to 1180-1220 DEG C in salt bath furnace Quenching, oil are cooled to room temperature；It is placed in 550-600 DEG C of temperature of Muffle furnace and is tempered again, tempering time is 0.5-1.5 hours, is returned Fiery number be 2-5 times to get.
The utility model has the advantages that mould steel wearability provided by the invention is good, hardness is high, elongation percentage is high, good toughness, impact resistance It gets well, heat-treatment distortion is small, long service life.The mould steel is suitable for manufacturing cold-working mold, the cutlery of various high-precisions, long-life And measurer, such as thread rolling die, cold extrusion drift, complex-shaped punching concave die, cold extruding die, cylindrical die roll, thread rolling wheel, cold shearing Knife and fine measuring instrument etc. are produced especially suitable for lithium battery and are formed.
Specific embodiment
The present invention is further illustrated below.
Embodiment 1
Molding mould steel, the component including following percentage: C 1.70%, Si 0.89%, Cr are produced for lithium battery 12.2%, Mn 0.58%, Mo 3.32%, V 2.86%, Ni 1.22%, Cu 1.46%, W 0.82%, Co 0.61%, Rh 0.26%, Zn 0.96%, Zr 0.32%, Pb 0.58%, Be 0.14%, Re 0.30%, Nd 0.44%, P≤0.02%, S≤0.02%, surplus are iron.
Preparation method, comprising the following steps:
(1) it sorting: by each element parts by weight sorting of mould steel to be prepared, while controlling the harmful element in raw material and containing Amount, in which: Cu≤0.25%, P≤0.02%, S≤0.02%；
(2) 1650 DEG C are heated to from room temperature, melts each component, constant temperature as in medium-frequency induction furnace in each raw material 7min, molten steel are come out of the stove, and are cast, cooling；
(3) it is heat-treated: by the mold steel heat treatment after step (2) casting: 1200 DEG C of quenchings are first heated in salt bath furnace, Oil is cooled to room temperature；It is placed in 570 DEG C of temperature of Muffle furnace and is tempered again, tempering time is 1 hour, and times of tempering is 3 times, i.e., ?.
Embodiment 2
Molding mould steel, the component including following percentage: C 2.00%, Si 0.76%, Cr are produced for lithium battery 12.8%, Mn 0.44%, Mo 3.68%, V 2.45%, Ni 1.58%, Cu 1.21%, W 1.22%, Co 0.51%, Rh 0.38%, Zn 0.84%, Zr 0.38%, Pb 0.46%, Be 0.18%, Re 0.22%, Nd 0.52%, P≤0.02%, S≤0.02%, surplus are iron.
Preparation method, comprising the following steps:
(1) it sorting: by each element parts by weight sorting of mould steel to be prepared, while controlling the harmful element in raw material and containing Amount, in which: Cu≤0.25%, P≤0.02%, S≤0.02%；
(2) 1600 DEG C are heated to from room temperature, melts each component, constant temperature as in medium-frequency induction furnace in each raw material 10min, molten steel are come out of the stove, and are cast, cooling；
(3) it is heat-treated: by the mold steel heat treatment after step (2) casting: 1180 DEG C of quenchings are first heated in salt bath furnace, Oil is cooled to room temperature；It is placed in 550 DEG C of temperature of Muffle furnace and is tempered again, tempering time is 1.5 hours, and times of tempering is 5 times, i.e., ?.
Embodiment 3
Molding mould steel, the component including following percentage: C 1.82%, Si 0.84%, Cr are produced for lithium battery 12.4%, Mn 0.50%, Mo 3.44%, V 2.68%, Ni 1.38%, Cu 1.36%, W 0.96%, Co 0.58%, Rh 0.30%, Zn 0.92%, Zr 0.34%, Pb 0.52%, Be 0.14%, Re 0.26%, Nd 0.46%, P≤0.02%, S≤0.02%, surplus are iron.
Preparation method, comprising the following steps:
(1) it sorting: by each element parts by weight sorting of mould steel to be prepared, while controlling the harmful element in raw material and containing Amount, in which: Cu≤0.25%, P≤0.02%, S≤0.02%；
(2) 1700 DEG C are heated to from room temperature, melts each component, constant temperature as in medium-frequency induction furnace in each raw material 5min, molten steel are come out of the stove, and are cast, cooling；
(3) it is heat-treated: by the mold steel heat treatment after step (2) casting: 1220 DEG C of quenchings are first heated in salt bath furnace, Oil is cooled to room temperature；It is placed in 600 DEG C of temperature of Muffle furnace and is tempered again, tempering time is 0.5 hour, and times of tempering is 2 times, i.e., ?.
Embodiment 4
Molding mould steel, the component including following percentage: C 1.88%, Si 0.80%, Cr are produced for lithium battery 12.6%, Mn 0.48%, Mo 3.50%, V 2.60%, Ni 1.42%, Cu 1.29%, W 1.05%, Co 0.55%, Rh 0.34%, Zn 0.88%, Zr 0.36%, Pb 0.48%, Be 0.18%, Re 0.24%, Nd 0.50%, P≤0.02%, S≤0.02%, surplus are iron.
Preparation method is the same as embodiment 1.
Embodiment 5
Molding mould steel, the component including following percentage: C 1.85%, Si 0.82%, Cr are produced for lithium battery 12.5%, Mn 0.49%, Mo 3.47%, V 2.64%, Ni 1.38-1.42%, Cu 1.32%, W 0.99%, Co 0.56%, Rh 0.32%, Zn 0.89%, Zr 0.35%, Pb 0.49%, Be 0.16%, Re 0.25%, Nd 0.48%, P≤0.02%, S≤0.02%, surplus are iron.
Preparation method is the same as embodiment 1.
The mould steel of embodiment 1 to 5 is cast into coupon, measures its mechanical property.

Claims (4)

1. one kind produces molding mould steel for lithium battery, it is characterised in that: the component including following percentage: C 1.70- 2.00%, Si 0.76-0.89%, Cr 12.2-12.8%, Mn 0.44-0.58%, Mo 3.32-3.68%, V 2.45- 2.86%, Ni 1.22-1.58%, Cu 1.21-1.46%, W 0.82-1.22%, Co 0.51-0.61%, Rh 0.26- 0.38%, Zn 0.84-0.96%, Zr 0.32-0.38%, Pb 0.46-0.58%, Be 0.14-0.18%, Re 0.22- 0.30%, Nd 0.44-0.52%, P≤0.02%, S≤0.02%, surplus is iron.
2. according to claim 1 a kind of for the molding mould steel of lithium battery production, it is characterised in that: including following hundred Divide the component of ratio: C 1.82-1.88%, Si 0.80-0.84%, Cr 12.4-12.6%, Mn 0.48-0.50%, Mo 3.44-3.50%, V 2.60-2.68%, Ni 1.38-1.42%, Cu 1.29-1.36%, W 0.96-1.05%, Co 0.55-0.58%, Rh 0.30-0.34%, Zn 0.88-0.92%, Zr 0.34-0.36%, Pb 0.48-0.52%, Be 0.14-0.18%, Re 0.24-0.26%, Nd 0.46-0.50%, P≤0.02%, S≤0.02%, surplus is iron.
3. according to claim 1 a kind of for the molding mould steel of lithium battery production, it is characterised in that: including following hundred Divide the component of ratio: C 1.85%, Si 0.82%, Cr 12.5%, Mn 0.49%, Mo 3.47%, V 2.64%, Ni 1.38- 1.42%, Cu 1.32%, W 0.99%, Co 0.56%, Rh 0.32%, Zn 0.89%, Zr 0.35%, Pb 0.49%, Be 0.16%, Re 0.25%, Nd 0.48%, P≤0.02%, S≤0.02%, surplus are iron.
4. the preparation method of the described in any item mould steel for lithium battery cutting machine of claims 1 to 3, it is characterised in that: The following steps are included:
(1) sorting: by each element parts by weight sorting of mould steel to be prepared, while controlling the harmful element content in raw material, In: Cu≤0.25%, P≤0.02%, S≤0.02%；
(2) it is heated to 1600-1700 DEG C from room temperature, melts each component as in medium-frequency induction furnace in each raw material, constant temperature 5- 10min, molten steel are come out of the stove, and are cast, cooling；
(3) it is heat-treated: by the mold steel heat treatment after step (2) casting: being first heated to 1180-1220 DEG C in salt bath furnace and quench Fire, oil are cooled to room temperature；It is placed in 550-600 DEG C of temperature of Muffle furnace and is tempered again, tempering time is 0.5-1.5 hours, tempering Number be 2-5 times to get.
CN201811351938.2A 2018-11-14 2018-11-14 One kind producing molding mould steel for lithium battery Withdrawn CN109402509A (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5868875A (en) * 1997-12-19 1999-02-09 Armco Inc Non-ridging ferritic chromium alloyed steel and method of making
CN103014495A (en) * 2012-12-01 2013-04-03 滁州市成业机械制造有限公司 High-tenacity high-wear-resistance cold-work die steel and processing method thereof
CN107180928A (en) * 2017-06-09 2017-09-19 江苏万达新能源科技股份有限公司 A kind of novel lithium battery lamina tecti
WO2018024892A1 (en) * 2016-08-04 2018-02-08 Rovalma, S.A. Method for the construction of dies or moulds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5868875A (en) * 1997-12-19 1999-02-09 Armco Inc Non-ridging ferritic chromium alloyed steel and method of making
CN103014495A (en) * 2012-12-01 2013-04-03 滁州市成业机械制造有限公司 High-tenacity high-wear-resistance cold-work die steel and processing method thereof
WO2018024892A1 (en) * 2016-08-04 2018-02-08 Rovalma, S.A. Method for the construction of dies or moulds
CN107180928A (en) * 2017-06-09 2017-09-19 江苏万达新能源科技股份有限公司 A kind of novel lithium battery lamina tecti

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Application publication date: 20190301