CN102206792B - Novel low alloy material sink roll - Google Patents
Novel low alloy material sink roll Download PDFInfo
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- CN102206792B CN102206792B CN 201110114527 CN201110114527A CN102206792B CN 102206792 B CN102206792 B CN 102206792B CN 201110114527 CN201110114527 CN 201110114527 CN 201110114527 A CN201110114527 A CN 201110114527A CN 102206792 B CN102206792 B CN 102206792B
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Abstract
The invention provides a novel low alloy material sink roll, which comprises the following components in percentage by weight: less than or equal to 0.12 percent of C, less than or equal to 1.0 percent of Si, 3 to 4.5 percent of Mn, less than or equal to 0.04 percent of S, 11 to 14 percent of Cr, 0.5 to 1.0 percent of Ni, less than or equal to 1.5 percent of Mo, and the balance of Fe and inevitable impurities. The invention also provides a preparation method for the novel low alloy material sink roll. Compared with the sink roll made of the conventional material, the novel low alloy material sink roll has higher zinc-aluminum liquid corrosion resistance and mechanical properties; and the service cycle in a galvanizing line is greatly prolonged.
Description
Technical field
The present invention relates to a kind of novel sinking roller, relate in particular to a kind of novel low alloy material sinking roller, belong to the hot coating field of metallurgy industry.
Background technology
At present, producing household appliances with plate and automobile plate is at cold rolled sheet surface plating one deck zinc.Zinc-plated method has two kinds, and first kind is electro-galvanizing, and second kind is pot galvanize.The sinking roller is exactly the product that uses at galvanization production line.
The sinking roller material therefor that existing galvanization production line uses is 316L (00Cr17Ni14Mo2), and the weight percentage of its composition is C≤0.03, Si≤1.0, Mn≤2.0, P, S≤0.03, Cr 16-18, Ni 12-15, Mo 2-3.The mechanical property of this sinking roller is as follows: tensile strength sigma b (MPa) 〉=480; σ 0.2 (MPa) 〉=175; Hardness HB≤187; Unit elongation δ 〉=40%.Yet there is the liquid zinc corrosion resistant poor performance in it, and the shortcoming that life cycle is short generally must be taken out the sinking roller at 10-15 days from zinc liquid, repair again.Every replacing once needs 2 day time, so with every day every production line to go out the galvanized sheet amount be to calculate over 200/T/ days, reality went out galvanized sheet 400T (ton) less in 2 days, had restricted production efficiency greatly and had strengthened cost.
Chinese patent application CN200910159823.8 discloses a kind of sinking roller, comprise matrix and working surface layers, described working surface layers is for comprising the cobalt base alloy of following composition by weight percentage: the Nb of Mn, the 0.01-5% of Al, the 0.1-3% of Fe, the 0.01-5% of C, the 0.01-20% of Ti, the 0.01-1.5% of V, the 0.01-5% of Mo, the 0.01-5% of W, the 0.1-10% of the Cr of 10-40%, the Ni of 0.1-15%, 0.1-15%, the Si of 0.1%-3%, all the other are Co and unavoidable impurities.And this cobalt base alloy is unpractical for whole manufacturing sinking roller, and the manufacturing cost of its material is more than 200 times of the old branch of ferrous alloy material, is adopted by existing producer hardly.
Summary of the invention
For the corrosion of anti-zinc-aluminium property difference and the short shortcoming of life cycle that solves sinking roller in the prior art, the object of the present invention is to provide a kind of sinking roller of novel low alloy material, it has the advantages that good anti-corrosion, satisfactory mechanical property, life-span prolong greatly under hot coating working conditions.
In order to achieve the above object, the present invention adopts following technical scheme:
The invention provides a kind of sinking roller of novel low alloy material, the shared weight percent of the composition of its material therefor is C≤0.12, Si≤1.0, and Mn 3-4.5, P, S≤0.04, Cr 11-14, Ni 0.5-1.0, Mo≤1.5, all the other are Fe and unavoidable impurities.
Preferably, the invention provides a kind of sinking roller of novel low alloy material, the shared weight percent of the composition of its material therefor is C 0.04-0.06, Si 0.4-0.8, Mn 3.5-4, P, S≤0.02, Cr12-13, Ni 0.7-1.0, Mo 0.8-1.2, all the other are Fe and unavoidable impurities.
The present invention also provides the preparation method of the sinking roller of described novel low alloy material, carries out according to following steps:
1) with carbon-point, Pure Silicon Metal, manganese metal, nickel plate, ferrochrome, metal molybdenum and iron as raw material, put into medium-frequency induction furnace after the oven dry, the order that adds is to add a certain amount of iron and carbon-point earlier, the fusing back adds nickel plate, manganese metal, metal molybdenum, add a certain amount of ferrochrome at last, when smelting temperature reaches 1560-1580 ℃, add an amount of Pure Silicon Metal;
2) molten steel after melted takes out in ladle is poured the type tube that runs up into after cooling;
3) take out steel pipe and put into boiler tube insulation cooling taking-up below 100 ℃ rapidly, take out the back steel pipe and carry out normalizing, normalized conditions is 980-1000 ℃, the every 25mm insulation of steel pipe thickness 2 hours, air cooling; Require the machined steel cylinder size according to client's drawing, process steel cylinder and sinking roller two ends roll neck assembly welding; Carry out anneal after integral body welds, annealing conditions is 700 ℃, the every 25mm insulation of steel pipe thickness 3 hours;
4) after the sinking roller meets the drawing requirement by processing after the integrally annealed, liquid penetrant inspection is carried out on its surface, change the client after dynamicbalance test is qualified over to and use.
Wherein, the described proportion of raw materials of step 1) is in the 1000kg material, carbon-point 0.1-0.12kg, Pure Silicon Metal 2-10kg, manganese metal 30-45kg, nickel plate 5-10kg, ferrochrome 169-215kg, metal molybdenum 5-15kg, iron surplus.Wherein ferrochrome is the iron of chrome content 65%.
Step 2 wherein) the described type tube that runs up must preheating 200-250 ℃, sprays into high-temperature resistant coating.Described system component is silicon powder, zirconium English powder and wilkinite.Preferred its proportioning is silicon powder 10 weight parts, zirconium English powder 83 weight parts and wilkinite 7 weight parts.
Wherein the described assembly welding of step 3) must carry out weld preheating 200-250 ℃, and wlding adopts 410H, and the weight percent of its ingredient is C 0.017, and Si 0.3, Mn≤0.76, and Cr 11.66, and Ni 0.84, and Cu 0.71.
Novel low alloy material sinking roller provided by the invention, the mechanical property under its normal temperature is tensile strength sigma b (MPa) 790, surface hardness HB 262, unit elongation δ 〉=16%; High temperature (480 ℃) mechanical property is tensile strength sigma b (MPa) 565, unit elongation δ 〉=19%.Compare with existing 316L (00Cr17Ni14Mo2), original material is fast owing to what be corroded, the easily sticking zinc liquid in roller surface, and the corrosion of anti-zinc-aluminium of novel low alloy material provided by the invention performance and mechanical property improve greatly, and the life cycle on the galvanization production line improves greatly, brought up to 20-30 days by 10-15 days of original 316L material, a production line can save time 10-18 days in 1 year, had more approximately to produce zinc-plated sheet material 3000T (ton).This production line of the tentative calculation whole nation is about about 200 so, if use this product then can produce about 600,000 tons of zinc-plated sheet materials more.
Embodiment
The invention provides a kind of sinking roller of novel low alloy material, the shared weight percent of the composition of its material therefor is C≤0.12, Si≤1.0, and Mn 3-4.5, P, S≤0.04, Cr 11-14, Ni 0.5-1.0, Mo≤1.5, all the other are Fe and unavoidable impurities.
C: more low more good from the content of corrosion resistance nature carbon, but need to guarantee that there is certain wear resistance on the surface, so its weight percentage≤0.12, preferred range is 0.04-0.06.
Can significantly improve erosion resistance in the time of in the scope of the weight percentage of Si≤1.0, otherwise the corrosion resistance nature reduction, preferred range is 0.4-0.8.
The weight percentage of Mn can intensity up to specification and hardness when 3-4.5, otherwise intensity and hardness all reduces, and preferred range is 3.5-4.
Cr can improve antioxygen and intensity, too high then strength of materials height but easily embrittlement in the heat treatment process, and too low then antioxygen and intensity all reduce, so its weight percentage is advisable preferred 12-13 at 11-14.
Mo can guarantee C homogeneity and improve carbide stability in matrix, improves intensity, and all improve to the resistance to corrosion of reductant, can lower the temper brittleness that other alloying element causes, so its weight percentage≤1.5, preferred 0.8-1.2.
Ni can improve the corrosion fatigue resistant performance, and its weight percentage is advisable with 0.5-1.0, is preferably 0.7-1.0.
P, S are harmful element, and content is more low more good, and its weight percentage distinguishes≤0.04 in the present invention, preferred≤0.02.
In addition, the sinking roller of novel low alloy material provided by the invention can also contain Ti.Ti can crystal grain thinning, and erosion resistance is improved, and the too high then titanium oxide of content inclusion is many, and too low then thinning effect is not obvious, so its weight percentage is advisable with 0.05-0.08.
The invention will be further described below in conjunction with embodiment, it should be understood that these embodiment only are used for the purpose of illustration, never limit protection scope of the present invention.
Embodiment 1
1) with iron 185kg, the metal molybdenum 12kg of carbon-point 0.12kg, Pure Silicon Metal 10kg, manganese metal 40kg, nickel plate 8kg, chrome content 65%, iron 743.3kg (amounting to 1000kg) as raw material, put into medium-frequency induction furnace after the oven dry, the order that adds is to add a certain amount of iron and carbon-point earlier, the fusing back adds nickel plate, manganese metal, metal molybdenum, add a certain amount of ferrochrome at last, when smelting temperature reaches 1560-1580 ℃, add an amount of Pure Silicon Metal;
2) molten steel after melted takes out in ladle is poured the type tube that runs up into after cooling, and the type tube that wherein runs up must preheating 200-250 ℃, sprays into high-temperature resistant coating, and its weight proportion is silicon powder 10%, zirconium English powder 83% and wilkinite 7%;
3) take out steel pipe and put into boiler tube insulation cooling taking-up below 100 ℃ rapidly, take out the back steel pipe and carry out normalizing, normalized conditions is 980-1000 ℃, the every 25mm insulation of steel pipe thickness 2 hours, air cooling; Require the machined steel cylinder size according to client's drawing, process steel cylinder and sinking roller two ends roll neck assembly welding, weld preheating 200-250 ℃, wlding adopts 410H, and (weight percent of its ingredient is C 0.017, and Si 0.3, Mn≤0.76, Cr 11.66, and Ni 0.84, and Cu 0.71); Carry out anneal after integral body welds, annealing conditions is 700 ℃, the every 25mm insulation of steel pipe thickness 3 hours;
4) after the sinking roller meets the drawing requirement by processing after the integrally annealed, liquid penetrant inspection is carried out on its surface, change the client after dynamicbalance test is qualified over to and use.
Embodiment 2
1) with iron 169kg, the metal molybdenum 5kg of carbon-point 0.1kg, Pure Silicon Metal 3kg, manganese metal 30kg, nickel plate 5kg, chrome content 65%, iron 787.9kg (amounting to 1000kg) as raw material, put into medium-frequency induction furnace after the oven dry, the order that adds is to add a certain amount of iron and carbon-point earlier, the fusing back adds nickel plate, manganese metal, metal molybdenum, add a certain amount of ferrochrome at last, when smelting temperature reaches 1560-1580 ℃, add an amount of Pure Silicon Metal;
2) molten steel after melted takes out in ladle is poured the type tube that runs up into after cooling, and the type tube that wherein runs up must preheating 200-250 ℃, sprays into high-temperature resistant coating, and its weight proportion is silicon powder 10%, zirconium English powder 83% and wilkinite 7%;
3) take out steel pipe and put into boiler tube insulation cooling taking-up below 100 ℃ rapidly, take out the back steel pipe and carry out normalizing, normalized conditions is 980-1000 ℃, the every 25mm insulation of steel pipe thickness 2 hours, air cooling; Require the machined steel cylinder size according to client's drawing, process steel cylinder and sinking roller two ends roll neck assembly welding, weld preheating 200-250 ℃, wlding adopts 410H, and (weight percent of its ingredient is C 0.017, and Si 0.3, Mn≤0.76, Cr 11.66, and Ni 0.84, and Cu 0.71); Carry out anneal after integral body welds, annealing conditions is 700 ℃, the every 25mm insulation of steel pipe thickness 3 hours;
4) after the sinking roller meets the drawing requirement by processing after the integrally annealed, liquid penetrant inspection is carried out on its surface, change the client after dynamicbalance test is qualified over to and use.
Embodiment 3
1) with iron 215kg, the metal molybdenum 15kg of carbon-point 0.12kg, Pure Silicon Metal 10kg, manganese metal 45kg, nickel plate 10kg, chrome content 65%, iron 704.88kg (amounting to 1000kg) as raw material, put into medium-frequency induction furnace after the oven dry, the order that adds is to add a certain amount of iron and carbon-point earlier, the fusing back adds nickel plate, manganese metal, metal molybdenum, add a certain amount of ferrochrome at last, when smelting temperature reaches 1560-1580 ℃, add an amount of Pure Silicon Metal;
2) molten steel after melted takes out in ladle is poured the type tube that runs up into after cooling, and the type tube that wherein runs up must preheating 200-250 ℃, sprays into high-temperature resistant coating, and its weight proportion is silicon powder 10%, zirconium English powder 83% and wilkinite 7%;
3) take out steel pipe and put into boiler tube insulation cooling taking-up below 100 ℃ rapidly, take out the back steel pipe and carry out normalizing, normalized conditions is 980-1000 ℃, the every 25mm insulation of steel pipe thickness 2 hours, air cooling; Require the machined steel cylinder size according to client's drawing, process steel cylinder and sinking roller two ends roll neck assembly welding, weld preheating 200-250 ℃, wlding adopts 410H, and (weight percent of its ingredient is C 0.017, and Si 0.3, Mn≤0.76, Cr 11.66, and Ni 0.84, and Cu 0.71); Carry out anneal after integral body welds, annealing conditions is 700 ℃, the every 25mm insulation of steel pipe thickness 3 hours;
4) after the sinking roller meets the drawing requirement by processing after the integrally annealed, liquid penetrant inspection is carried out on its surface, change the client after dynamicbalance test is qualified over to and use.
Experimental example 1
Embodiment 1-3 gained sinking roller is carried out chemical ingredients to be detected: C 0.04-0.06, and Si 0.4-0.8, Mn 3.5-4, P, S≤0.02, Cr 12-13, Ni 0.7-1.0, Mo 0.8-1.2, all the other are Fe and unavoidable impurities.
Mechanical property under the normal temperature is tensile strength sigma b (MPa) 〉=790, and surface hardness HB 262, unit elongation δ 〉=16%; High temperature (480 ℃) mechanical property is tensile strength sigma b (MPa) 〉=565, unit elongation δ 〉=19%.
Compare with existing 316L (00Cr17Ni14Mo2), original material is fast owing to what be corroded, the easily sticking zinc liquid in roller surface, and the corrosion of anti-zinc-aluminium of novel low alloy material provided by the invention performance and mechanical property improve greatly, and the life cycle on the galvanization production line improves greatly, by 10-15 days of original 316L material having brought up to 20-30 days.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limits, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (4)
1. the sinking roller of a low alloy material, the shared weight percent of the composition of its material therefor is C0.04-0.06, Si0.4-0.8, Mn3.5-4, P, S≤0.02, Cr12-13, Ni0.7-1.0, Mo0.8-1.2, all the other are Fe and unavoidable impurities;
Described sinking roller prepares according to following steps:
1) with carbon-point, Pure Silicon Metal, manganese metal, nickel plate, ferrochrome, metal molybdenum and iron as raw material, put into medium-frequency induction furnace after the oven dry, the order that adds is to add a certain amount of iron and carbon-point earlier, the fusing back adds nickel plate, manganese metal, metal molybdenum, add a certain amount of ferrochrome at last, when smelting temperature reaches 1560-1580 ℃, add an amount of Pure Silicon Metal; Wherein said proportion of raw materials is in the 1000kg material, carbon-point 0.1-0.12kg, Pure Silicon Metal 2-10kg, manganese metal 30-45kg, nickel plate 5-10kg, ferrochrome 169-215kg, metal molybdenum 5-15kg, iron surplus, and wherein ferrochrome is the iron of chrome content 65%;
2) molten steel after melted takes out in ladle is poured the type tube that runs up into after cooling;
3) take out steel pipe and put into boiler tube insulation cooling taking-up below 100 ℃ rapidly, take out the back steel pipe and carry out normalizing, normalized conditions is 980-1000 ℃, the every 25mm insulation of steel pipe thickness 2 hours, air cooling; Require the machined steel cylinder size according to client's drawing, process steel cylinder and sinking roller two ends roll neck assembly welding, weld preheating 200-250 ℃, wlding adopts 410H; Carry out anneal after integral body welds, annealing conditions is 700 ℃, the every 25mm insulation of steel pipe thickness 3 hours;
4) after the sinking roller meets the drawing requirement by processing after the integrally annealed, liquid penetrant inspection is carried out on its surface, change the client after dynamicbalance test is qualified over to and use.
2. sinking roller according to claim 1, wherein, step 2) the described type tube that runs up must preheating 200-250 ℃, sprays into high-temperature resistant coating.
3. sinking roller according to claim 2, wherein, described system component is silicon powder, zirconium English powder and wilkinite.
4. sinking roller according to claim 3, wherein, described coating formula is silicon powder 10 weight parts, zirconium English powder 83 weight parts and wilkinite 7 weight parts.
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| CN 201110114527 CN102206792B (en) | 2011-05-04 | 2011-05-04 | Novel low alloy material sink roll |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110114527 CN102206792B (en) | 2011-05-04 | 2011-05-04 | Novel low alloy material sink roll |
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| CN102206792B true CN102206792B (en) | 2013-08-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103233173B (en) * | 2013-04-24 | 2014-12-31 | 北京工业大学 | Sink roller shaft sleeve and preparation method thereof |
| CN105648348B (en) * | 2016-02-03 | 2017-06-06 | 合肥工业大学 | A kind of middle carbon FeCrSiWMoAl sinking rollers steel and its manufacture method |
| CN106580579A (en) * | 2016-12-13 | 2017-04-26 | 重庆佐恩家具有限公司 | Seat for special group |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798394A1 (en) * | 1996-03-27 | 1997-10-01 | Kawasaki Steel Corporation | Martensitic steel for line pipe having excellent corrosion resistance and weldability |
| CN1488774A (en) * | 2002-07-01 | 2004-04-14 | 杰富意钢铁株式会社 | Iron-chromium alloy structure with excellent corrosion resisting and adhesion properties and manufacturing method thereof |
| CN101646788A (en) * | 2007-03-29 | 2010-02-10 | 住友金属工业株式会社 | Case-hardened steel pipe excellent in workability and process for production thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814004B2 (en) * | 1987-12-28 | 1996-02-14 | 日新製鋼株式会社 | Method for producing high-ductility and high-strength dual-phase chrome stainless steel strip with excellent corrosion resistance |
| JPH09195002A (en) * | 1995-11-16 | 1997-07-29 | Sumitomo Metal Ind Ltd | Plug for producing seamless tube and its production |
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2011
- 2011-05-04 CN CN 201110114527 patent/CN102206792B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798394A1 (en) * | 1996-03-27 | 1997-10-01 | Kawasaki Steel Corporation | Martensitic steel for line pipe having excellent corrosion resistance and weldability |
| CN1488774A (en) * | 2002-07-01 | 2004-04-14 | 杰富意钢铁株式会社 | Iron-chromium alloy structure with excellent corrosion resisting and adhesion properties and manufacturing method thereof |
| CN101646788A (en) * | 2007-03-29 | 2010-02-10 | 住友金属工业株式会社 | Case-hardened steel pipe excellent in workability and process for production thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP平1-172524A 1989.07.07 |
| JP特开平9-195002A 1997.07.29 |
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Address after: 214536 Jiangsu city of Taizhou province Jingjiang city new town Lishi No. 186 South Street Patentee after: JIANGSU BIAOXIN INDUSTRY CO., LTD. Address before: 214536 Jiangsu city of Taizhou province Jingjiang city new town Lishi No. 186 South Street Patentee before: Jiangsu Biaoxin Kubota Industrial Co., Ltd. |