CN105087887B - Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types - Google Patents
Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types Download PDFInfo
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- CN105087887B CN105087887B CN201510498484.1A CN201510498484A CN105087887B CN 105087887 B CN105087887 B CN 105087887B CN 201510498484 A CN201510498484 A CN 201510498484A CN 105087887 B CN105087887 B CN 105087887B
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Abstract
The present invention relates to cold rolling field, manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in specifically a kind of 430 type, technological process rolls → third time annealing → service check → finished product packing for second for the rolling for the first time of annealing → cold drawing for the first time → second annealing → cold drawing, the deformation rate that cold drawing rolling for the first time and cold drawing are rolled for second is 2/3～3/2, cold drawing rolling for the first time is rolled using the roll that roughness is 0.1 0.2 μm for second using the roll that roughness is 0.4 0.5 μm, cold drawing.The stainless steel cold drawing surface manufactured using the inventive method is visible by naked eyes rolling shading.
Description
Technical field
The present invention relates to cold rolling field, system of the carbon ferritic stainless steel without shading cold drawing in chromium in specifically a kind of 430 type
Make method.
Background technology
In 430 types, in carbon, chrome ferritic stainless steel is widely used in product, decoration and the industry such as household electrical appliances, but the type
Stainless-steel cold-rolling plate surface Jing often has the deep mixed longitudinal lines along rolling direction, affects the attractive in appearance of material so that such
Material could be used for high-grade incrustation field after having to pass through frosted or polishing.
The content of the invention
The technical problem to be solved is：How to eliminate in existing 430 type that chrome ferritic stainless steel is cold rolling in carbon
Plate shading so as to high-grade incrustation field can directly applied to.
The technical solution adopted in the present invention is：Manufacturer of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types
Method, technological process roll → are moved back for second for the third time for the rolling for the first time of annealing → cold drawing for the first time → second annealing → cold drawing
Fire → service check → finished product packing, the deformation rate that cold drawing rolling for the first time and cold drawing are rolled for second is 2/3～3/2, cold drawing
For the first time rolling is 0.4-0.5 μm of roll using roughness, and cold drawing is rolled for second and rolled for 0.1-0.2 μm using roughness
Roller.
As a kind of preferred embodiment：The annealing temperature of annealing is 360-400 DEG C for the first time, is annealed using air cooling, second
The annealing temperature of annealing is 330-340 DEG C, is annealed using oil cooling, and the annealing temperature of third time annealing is 340-350 DEG C, using sky
Cold annealing.
As a kind of preferred embodiment：Rolled using two milling trains, the mill speed of two milling trains is mutually all 3-5m/s,
For the first time rolling is rolled cold drawing in the first milling train, after the completion of the first milling train through 0.8-1 rice long 340 DEG C holding furnace,
Normal temperature oil cooling area is out passed through afterwards from holding furnace, out enters back into the second milling train afterwards from normal temperature oil cooling area.Holding furnace is flat by two pieces
Andante is constituted, and inner, constant temperature is 340 DEG C, carbon iron element in chromium in 430 types passed through with 3-5m/s speed through holding furnace
Body stainless steel temperature is between 330-340 DEG C.Oil cooling area refers to and carbon iron in chromium is flowed down in 430 types of cooling from above by the oil of normal temperature
Ferritic stainless steel.
The invention has the beneficial effects as follows：The stainless steel cold drawing surface manufactured using the inventive method is visible by naked eyes rolling bottom
Line, other performances are consistent or more excellent with carbon ferritic stainless steel cold drawing in chromium in 430 types commonly polished, can direct Ying Yu
The high-grade furnishing fields in part, in alternative 304 material in certain fields.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Wherein, the 1, first milling train, 2, holding furnace, 3, oil cooling area, the 4, second milling train, in 5,430 types, in chromium, carbon ferritic is not
Rust steel.
Specific embodiment
Embodiment 1
Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types, technological process for for the first time annealing →
Cold drawing rolling for the first time → second annealing → cold drawing rolls → third time annealing → service check → finished product packing, heat for second
Plate gauge lattice 6.0mm, the deformation rate that cold drawing rolling for the first time and cold drawing are rolled for second is 3/2, and cold drawing rolling for the first time is using thick
Rugosity is 0.5 μm of roll, and second rolling of cold drawing is using the roll that roughness is 0.1 μm.Rear specification cold rolling for the first time is
3.9mm, second cold rolling rear specification are 2.5mm.Cold rolling rear final finished cold drawing performance is as follows
| Yield strength | Tensile strength | Elongation percentage | Whether shading is had | Surface roughness | Surface brightness | |
| Present invention production cold drawing | 311MPa | 497MPa | 32% | Nothing | 0.034μm | 920（20º） |
| Common process cold drawing | 312MPa | 496MPa | 26% | Have | 0.066μm | 789（20º） |
Embodiment 2
Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types, technological process for for the first time annealing →
Cold drawing rolling for the first time → second annealing → cold drawing rolls → third time annealing → service check → finished product packing, heat for second
Plate gauge lattice 3.0mm, the deformation rate that cold drawing rolling for the first time and cold drawing are rolled for second is 2/3, and cold drawing rolling for the first time is using thick
Rugosity is 0.45 μm of roll, and second rolling of cold drawing is using the roll that roughness is 0.1 μm.Rear specification cold rolling for the first time is
1.5mm, second cold rolling rear specification are 0.5mm.Cold rolling rear final finished cold drawing performance is as follows
| Yield strength | Tensile strength | Elongation percentage | Whether shading is had | Surface roughness | Surface brightness | |
| Present invention production cold drawing | 318MPa | 497MPa | 29% | Nothing | 0.029μm | 980（20º） |
| Common process cold drawing | 312MPa | 496MPa | 26% | Have | 0.066μm | 789（20º） |
As shown in figure 1, this process carries out continuous rolling using two milling trains, the mill speed of two milling trains is mutually all 3-
5m/s, after advance 380 DEG C of annealing temperatures annealing air cooling, rolling is rolled cold drawing in the first milling train for the first time, and first rolls
After the completion of machine through 0.8-1 rice long 340 DEG C holding furnace, leave temperature for 336 DEG C, from holding furnace out afterwards through normal temperature oil
Cold-zone, out enters back into the second milling train afterwards from normal temperature oil cooling area.Holding furnace is made up of two blocks of parallel-plates, and inner, constant temperature is
340 DEG C, in 430 types passed through with 3-5m/s speed through holding furnace in chromium carbon ferritic stainless steel temperature at 336 DEG C.Roll
Obtain finished product after the completion of system after the anneal air cooling that annealing temperature is 348 DEG C, oil cooling area refer to oil by normal temperature from
Carbon ferritic stainless steel in chromium is flowed down in 430 types of cooling above.
Claims (2)
- Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 1.430 types, it is characterised in that：Technological process is first Secondary annealing → cold drawing rolling for the first time → second annealing → cold drawing, second rolling → third time annealing → service check → into Product are packed, and the deformation rate that cold drawing rolling for the first time and cold drawing are rolled for second is 2/3～3/2, and cold drawing rolling for the first time is using thick Rugosity is 0.4-0.5 μm of roll, and it is 0.1-0.2 μm of roll that cold drawing is rolled for second using roughness, annealing for the first time Annealing temperature is 360-400 DEG C, is annealed using air cooling, and the annealing temperature of second annealing is 330-340 DEG C, is moved back using oil cooling Fire, the annealing temperature of third time annealing is 340-350 DEG C, is annealed using air cooling.
- 2. manufacture method of the carbon ferritic stainless steel without shading cold drawing, its feature in chromium in 430 type according to claim 1 It is：Rolled using two milling trains, the mill speed of two milling trains is mutually all 3-5m/s, and cold drawing is rolled for the first time first Milling train is rolled, after the completion of the first milling train through 0.8-1 rice long 340 DEG C holding furnace, from holding furnace out afterwards through normal Warm oil cooling area, out enters back into the second milling train afterwards from normal temperature oil cooling area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510498484.1A CN105087887B (en) | 2015-08-14 | 2015-08-14 | Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510498484.1A CN105087887B (en) | 2015-08-14 | 2015-08-14 | Manufacture method of the carbon ferritic stainless steel without shading cold drawing in chromium in 430 types |
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| CN105087887A CN105087887A (en) | 2015-11-25 |
| CN105087887B true CN105087887B (en) | 2017-04-05 |
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| CN107891064A (en) * | 2017-10-23 | 2018-04-10 | 山西太钢不锈钢股份有限公司 | A kind of production method for improving stainless steel surfaces quality |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318438A (en) * | 2001-06-05 | 2001-10-24 | 宁波宝新不锈钢有限公司 | Cold rolling process of ferrite and martensitic stainless steel belt |
| JP2008208412A (en) * | 2007-02-26 | 2008-09-11 | Nippon Steel & Sumikin Stainless Steel Corp | Ferritic stainless steel sheet having reduced surface roughness after working and excellent formability, and its manufacturing method |
| CN103831627A (en) * | 2014-03-05 | 2014-06-04 | 山西太钢不锈钢股份有限公司 | Method for lowering surface roughness of cold-rolled nickel stainless steel bright plate |
| CN103966409A (en) * | 2013-01-31 | 2014-08-06 | 宝钢不锈钢有限公司 | Manufacturing method for medium chrome ferrite stainless steel |
-
2015
- 2015-08-14 CN CN201510498484.1A patent/CN105087887B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318438A (en) * | 2001-06-05 | 2001-10-24 | 宁波宝新不锈钢有限公司 | Cold rolling process of ferrite and martensitic stainless steel belt |
| JP2008208412A (en) * | 2007-02-26 | 2008-09-11 | Nippon Steel & Sumikin Stainless Steel Corp | Ferritic stainless steel sheet having reduced surface roughness after working and excellent formability, and its manufacturing method |
| CN103966409A (en) * | 2013-01-31 | 2014-08-06 | 宝钢不锈钢有限公司 | Manufacturing method for medium chrome ferrite stainless steel |
| CN103831627A (en) * | 2014-03-05 | 2014-06-04 | 山西太钢不锈钢股份有限公司 | Method for lowering surface roughness of cold-rolled nickel stainless steel bright plate |
Non-Patent Citations (1)
| Title |
|---|
| 冷轧 退火工艺对 SUS430 铁素体不锈钢深冲性能的影响;陈培敦等;《北京科学大学学报》;20111231;第33卷;第1节 * |
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