CN109554612A - A kind of novel cold rolling working roll and preparation method thereof - Google Patents
A kind of novel cold rolling working roll and preparation method thereof Download PDFInfo
- Publication number
- CN109554612A CN109554612A CN201811506578.9A CN201811506578A CN109554612A CN 109554612 A CN109554612 A CN 109554612A CN 201811506578 A CN201811506578 A CN 201811506578A CN 109554612 A CN109554612 A CN 109554612A
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- Prior art keywords
- roll
- preparation
- heat treatment
- temperature
- cold rolling
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
Abstract
The invention discloses a kind of novel cold rolling working roll, the ingredients and its weight percentage of the cold roll are as follows: 0.70~1.0% C；0.80~1.50% Si；0.20~0.80% Mn；2.50~3.50% Cr；0.60~0.80% Mo；0.30~0.50% V；Remaining ingredient is Fe and inevitable impurity.The preparation method comprises the following steps: roller stock preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat treatment → finishing → finished product roller.The content that the present invention passes through cancellation Ni element and raising Si, Mn, Mo element, ultra-low temperature cold processing is carried out to material, it reduces costs and improves material property, the surface hardness 90-98HSD and uniformity≤1.5HSD, depth of hardening zone for making finished product roller obtained reach 30mm, tensile strength >=900MPa and metallographic structure grain size >=9 grade, meet requirement.
Description
Technical field
The present invention relates to material and technical field of heat treatment, it is specifically a kind of by cancel Ni element and improve Si,
The content of Mn, Mo element and the novel cold rolling work that ultra-low temperature cold processing is carried out to material to reduce cost, improve material property
Roller and preparation method thereof.
Background technique
In recent years, with the fast development of household electrical appliances, automobile, electronics industry, the cold rolling enterprise development impetus is very powerful.Very much
Private enterprise's cold-rolled products, which also enter such as household electrical appliances, high-grade material middle and high end industry, these industries, wants the quality of plate surface
It asks very high, equally the performance requirement of roll is also greatly improved.Most current cold mill complex is six rolling rollers, is one respectively
Group working roll, one group of intermediate calender rolls, one group of backing roll, working roll are directly contacted with stocking, it requires have high wearability, and in
Between roller simultaneously contacted with working roll, backing roll, it needs to have higher contacting fatigue resistance.User was using according to statistics
The roll of Cheng Zhongyue 60% can be caused mass loss due to contact fatigue property or be scrapped in advance.
Summary of the invention
In light of the defects in the prior art, the purpose of the invention is to provide one kind by cancel Ni element and improve Si,
The content of Mn, Mo element and the novel cold rolling work that ultra-low temperature cold processing is carried out to material to reduce cost, improve material property
Roller and preparation method thereof.
The purpose of the present invention is what is solved by the following technical programs:
A kind of novel cold rolling working roll, it is characterised in that: the ingredient and its weight percentage of the cold roll are as follows: 0.70~1.0%
C；0.80~1.50% Si；0.20~0.80% Mn；2.50~3.50% Cr；0.60~0.80% Mo；0.30~
0.50% V；Remaining ingredient is Fe and inevitable impurity.
A kind of preparation method of novel cold rolling working roll, it is characterised in that: the preparation method of the cold roll is by following
Step carries out: roller stock preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat treatment → finishing → finished product roller,
Wherein the body of roll heat treatment process process of the cold roll is as follows: first using 300~400 DEG C preheating, then carry out 900~
950 DEG C of double frequency induction heat treatment, carries out -130~-160 DEG C of deep-cool treatment, is finally sent into back after the completion of quenching
100~180 DEG C of low-temperature tempering heat treatment is carried out in stove.
The temperature of cold roll rises to 300~400 DEG C from room temperature with the heating rate of 8~9 DEG C/min when preheating, and protects
3~5h of temperature.
900~950 DEG C of double frequency induction is carried out when quenching heat treatment, after the completion of preheating to be heat-treated, and heat preservation 1~
1.5h。
The soaking time of deep-cool treatment is 8~9h.
The soaking time of low-temperature tempering heat treatment is 80~130h.
The surface hardness of finished product roller obtained be 90-98HSD and uniformity≤1.5HSD, depth of hardening zone reach 30mm,
Tensile strength >=900MPa and metallographic structure grain size >=9 grade.
The present invention has the following advantages compared with prior art:
The present invention can both optimize chemical component matching and can be by cancelling Ni element and improve the content of Si, Mn, Mo element
Certain production cost is generally reduced, Mo constituent content is improved, it being capable of further thinning microstructure, raising material property；It is logical
It crosses and ultra-low temperature cold processing is carried out to material, having reached not only reduces certain material cost, but also can improve material property, makes to make
Finished product roller surface hardness be 90-98HSD and uniformity≤1.5HSD, depth of hardening zone reach 30mm, tensile strength >=
900MPa and metallographic structure grain size >=9 grade, meet requirement.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
A kind of novel cold rolling working roll, the ingredient and its weight percentage of the cold roll are as follows: 0.70~1.0% C；
0.80~1.50% Si；0.20~0.80% Mn；2.50~3.50% Cr；0.60~0.80% Mo；0.30~0.50%
V；Remaining ingredient is Fe and inevitable impurity.
A kind of preparation method of novel cold rolling working roll, the preparation method of the cold roll carry out in the steps below: roller
Base preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat treatment → finishing → finished product roller, the wherein Cold-roller
The body of roll heat treatment process process for making roller is as follows: first using 300~400 DEG C of preheatings, when preheating the temperature of cold roll from
Room temperature rises to 300~400 DEG C with the heating rate of 8~9 DEG C/min, and keeps the temperature 3~5h；Then 900~950 DEG C of double frequency is carried out
Impewdance matching heat treatment, and keep the temperature 1~1.5h；- 130~-160 DEG C of deep-cool treatment is carried out after the completion of quenching, and is kept the temperature
Time is 8~9h；Finally be sent into tempering furnace and carry out 100~180 DEG C of low-temperature tempering heat treatment, and soaking time be 80~
130h.The surface hardness of finished product roller obtained is 90-98HSD and uniformity≤1.5HSD, depth of hardening zone reach 30mm, tension
Intensity >=900MPa and metallographic structure grain size >=9 grade.
Below by specific embodiment, the present invention is further illustrated.
Embodiment one
A kind of novel cold rolling working roll, the ingredient and its weight percentage of the cold roll are as follows: 0.85% C；1.48%
Si；0.62% Mn；2.93% Cr；0.69% Mo；0.32% V；Remaining ingredient is Fe and inevitable impurity.The cold rolling
The preparation method of working roll carries out in the steps below: roller stock preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat
Processing → finishing → finished product roller, wherein the body of roll heat treatment process process of the cold roll is as follows: pre- using 360 DEG C first
Heat, the temperature of cold roll rises to 360 DEG C from room temperature with the heating rate of 9 DEG C/min when preheating, and keeps the temperature 4h；Preheating is completed
900~950 DEG C of double frequency induction heat treatment is carried out afterwards, and keeps the temperature 1h；- 150 DEG C of low-temperature deep is carried out after the completion of quenching
Processing, and soaking time is 8h；It is finally sent into tempering furnace and carries out 170 DEG C of low-temperature tempering heat treatment, and soaking time is
80h.By cancel Ni element and improve Si, Mn, Mo element content, can both optimize chemical component matching and can be on the whole
Certain production cost is reduced, Mo constituent content is improved, it being capable of further thinning microstructure, raising material property；By to material
Material carries out ultra-low temperature cold processing, and having reached not only reduces certain material cost, but also can improve material property, make it is obtained at
The surface hardness of product roller is 93HSD and uniformity≤1.2HSD, depth of hardening zone reach 32mm, tensile strength >=900MPa and gold
Phase constitution grain size >=9 grade.
Embodiment two
A kind of novel cold rolling working roll, the ingredient and its weight percentage of the cold roll are as follows: 0.90% C；0.82%
Si；0.65% Mn；3.18% Cr；0.75% Mo；0.47% V；Remaining ingredient is Fe and inevitable impurity.The cold rolling
The preparation method of working roll carries out in the steps below: roller stock preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat
Processing → finishing → finished product roller, wherein the body of roll heat treatment process process of the cold roll is as follows: pre- using 320 DEG C first
Heat, the temperature of cold roll rises to 320 DEG C from room temperature with the heating rate of 8 DEG C/min when preheating, and keeps the temperature 5h；Preheating is completed
900~950 DEG C of double frequency induction heat treatment is carried out afterwards, and keeps the temperature 1.3h；- 130 low-temperature deep is carried out after the completion of quenching
Processing, and soaking time is 9h；It is finally sent into tempering furnace and carries out 140 DEG C of low-temperature tempering heat treatment, and soaking time is
100h.By cancel Ni element and improve Si, Mn, Mo element content, can both optimize chemical component matching and can be in totality
It is upper to reduce certain production cost, Mo constituent content is improved, it being capable of further thinning microstructure, raising material property；By right
Material carries out ultra-low temperature cold processing, and having reached not only reduces certain material cost, but also can improve material property, makes obtained
The surface hardness of finished product roller be 96HSD and uniformity≤1.4HSD, depth of hardening zone reach 31mm, tensile strength >=900MPa and
Metallographic structure grain size >=9 grade.
Embodiment three
A kind of novel cold rolling working roll, the ingredient and its weight percentage of the cold roll are as follows: 0.78% C；1.24%
Si；0.45% Mn；3.50% Cr；0.80% Mo；0.44% V；Remaining ingredient is Fe and inevitable impurity.The cold rolling
The preparation method of working roll carries out in the steps below: roller stock preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat
Processing → finishing → finished product roller, wherein the body of roll heat treatment process process of the cold roll is as follows: pre- using 380 DEG C first
Heat, the temperature of cold roll rises to 380 DEG C from room temperature with the heating rate of 9 DEG C/min when preheating, and keeps the temperature 4h；Preheating is completed
900~950 DEG C of double frequency induction heat treatment is carried out afterwards, and keeps the temperature 1h；- 160 DEG C of low-temperature deep is carried out after the completion of quenching
Processing, and soaking time is 8h；It is finally sent into tempering furnace and carries out 120 DEG C of low-temperature tempering heat treatment, and soaking time is
130h.By cancel Ni element and improve Si, Mn, Mo element content, can both optimize chemical component matching and can be in totality
It is upper to reduce certain production cost, Mo constituent content is improved, it being capable of further thinning microstructure, raising material property；By right
Material carries out ultra-low temperature cold processing, and having reached not only reduces certain material cost, but also can improve material property, makes obtained
The surface hardness of finished product roller be 97HSD and uniformity≤1.1HSD, depth of hardening zone reach 34mm, tensile strength >=900MPa and
Metallographic structure grain size >=9 grade.
The present invention can both optimize chemical component matching simultaneously by the content of cancellation Ni element and raising Si, Mn, Mo element
Certain production cost can be reduced on the whole, improve Mo constituent content, it being capable of further thinning microstructure, raising material
Energy；By carrying out ultra-low temperature cold processing to material, having reached not only reduces certain material cost, but also can improve material
Can, make the surface hardness 90-98HSD of finished product roller obtained and uniformity≤1.5HSD, depth of hardening zone reach 30mm, tension
Intensity >=900MPa and metallographic structure grain size >=9 grade, meet requirement.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within；The technology that the present invention is not directed to can be realized by the prior art.
Claims (7)
1. a kind of novel cold rolling working roll, it is characterised in that: the ingredient and its weight percentage of the cold roll are as follows: 0.70~
1.0% C；0.80~1.50% Si；0.20~0.80% Mn；2.50~3.50% Cr；0.60~0.80% Mo；0.30
~0.50% V；Remaining ingredient is Fe and inevitable impurity.
2. the preparation method of novel cold rolling working roll according to claim 1, it is characterised in that: the system of the cold roll
Preparation Method carries out in the steps below: roller stock preparation → roughing → Tempering and Quenching → semifinishing → body of roll heat treatment → finishing
Work → finished product roller, wherein the body of roll heat treatment process process of the cold roll is as follows: first using 300~400 DEG C of preheatings, so
The double frequency induction heat treatment for carrying out 900~950 DEG C afterwards, carries out after the completion of quenching at -130~-160 DEG C of low-temperature deep
Reason is finally sent into tempering furnace and carries out 100~180 DEG C of low-temperature tempering heat treatment.
3. the preparation method of novel cold rolling working roll according to claim 2, it is characterised in that: cold roll when preheating
Temperature rise to 300~400 DEG C from room temperature with the heating rate of 8~9 DEG C/min, and keep the temperature 3~5h.
4. the preparation method of novel cold rolling working roll according to claim 2, it is characterised in that:, will when quenching heat treatment
The roll that preheating is completed, which is sent directly into the glowing furnace that temperature is 900~950 DEG C, carries out quenching heat treatment, and keeps the temperature 1~1.5h.
5. the preparation method of novel cold rolling working roll according to claim 2, it is characterised in that: the guarantor of deep-cool treatment
The warm time is 8~9h.
6. the preparation method of novel cold rolling working roll according to claim 2, it is characterised in that: low-temperature tempering heat treatment
Soaking time is 80~130h.
7. according to the preparation method of any novel cold rolling working roll of claim 2-6, it is characterised in that: finished product obtained
The surface hardness of roller be 90-98HSD and uniformity≤1.5HSD, depth of hardening zone reach 30mm, tensile strength >=900MPa and
Metallographic structure grain size >=9 grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506578.9A CN109554612A (en) | 2018-12-10 | 2018-12-10 | A kind of novel cold rolling working roll and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811506578.9A CN109554612A (en) | 2018-12-10 | 2018-12-10 | A kind of novel cold rolling working roll and preparation method thereof |
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| CN109554612A true CN109554612A (en) | 2019-04-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524202A (en) * | 2019-09-18 | 2019-12-03 | 湖北三江航天江北机械工程有限公司 | The processing method of retro-rocket abnormity nozzle with scarfed exit plane shell |
| CN110643906A (en) * | 2019-10-31 | 2020-01-03 | 宝钢轧辊科技有限责任公司 | Manufacturing method of easily-ground forged steel cold roll |
| CN115058651A (en) * | 2022-06-23 | 2022-09-16 | 宝钢轧辊科技有限责任公司 | Forged steel cold-rolling working roll with roll mark resistance and manufacturing method thereof |
| CN115323276A (en) * | 2022-10-11 | 2022-11-11 | 联峰钢铁（张家港）有限公司 | Bearing steel with high strength and high plasticity and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115323276A (en) * | 2022-10-11 | 2022-11-11 | 联峰钢铁（张家港）有限公司 | Bearing steel with high strength and high plasticity and production process thereof |
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