CN104789891A - First perforation guide plate for multifunctional piercing mill - Google Patents
First perforation guide plate for multifunctional piercing mill Download PDFInfo
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- CN104789891A CN104789891A CN201510109627.5A CN201510109627A CN104789891A CN 104789891 A CN104789891 A CN 104789891A CN 201510109627 A CN201510109627 A CN 201510109627A CN 104789891 A CN104789891 A CN 104789891A
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Abstract
The invention provides a first perforation guide plate for a multifunctional piercing mill. The first perforation guide plate comprises, by mass, 1.9-2.1% of C, 0.8-1.2% of Si, 0.3-0.6% of Mn, 25-27% of Cr, 8-10% of Ni, 0.5-0.7% of Mo, 0.3-0.5% of Ti, below 0.035% of P, below 0.035% of S, and the balance of Fe. The matrix structure of the guide plate is austenite, so the guide plate has good structure stability, good high temperature strength, toughness and good cold and hot fatigue resistance; and high chromium and high silicon guarantee that the guide plate have high oxidation resistance, high carbon content and the addition of chromium and molybdenum alloy guarantee that the matrix of the guide plate have enough carbide strengthening phase, improved strength and hardness, and good hot strength and wear resistance. A reasonable making technology guarantees that the guide plate have the characteristics of structure compactness, refined crystal grain and no casting defects; and the particles of the carbide strengthening phase are fine and are uniformly distributed, so the comprehensive performances of the guide plate are greatly improved.
Description
Technical field
The present invention relates to high alloy material technical field of heating, particularly relate to the one multi-functional roll piercing mill once perforated guide plate in seamless steel tube production field.
Background technology
Guide plate of perforating machine is warp tool main in seamless steel tube production, and it is for the very severe Working environment of condition, and work-ing life is low, and price is high, causes extreme influence to the normal production of weldless steel tube and production cost.Current pipe mill generally uses the nickelic guide plate of Cr32Ni5 height chromium guide plate and nickeliferous about 50%.High chromium guide plate is low for work-ing life, cannot meet service requirements; Nickelic guide plate is good for work-ing life, but expensive, and cost is high.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of multi-functional roll piercing mill once perforated guide plate, there is long service life, advantage that cost is low.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of multi-functional roll piercing mill once perforated guide plate, its material comprises according to mass percent: C:1.9%-2.1%, Si:0.8%-1.2%, Mn:0.3-0.6%, Cr:25%-27%, Ni; 8%-10%, Mo; 0.5%-0.7%, Ti:0.3%-0.5%, P<0.035%, S<0.035%, surplus is iron.
Preferably, the mass percent of described carbon is 2%
Preferably, the mass percent of described silicon is 0.9%-1.0%.
Preferably, the mass percent of described manganese is 0.5%.
Preferably, the mass percent of described chromium is 26%.
Preferably, the mass percent of described nickel is 9%.
Preferably, the mass percent of described molybdenum is 0.6.
Preferably, the mass percent of described titanium is 0.4%.
Beneficial effect: the guide plate adopting above-mentioned explained hereafter, matrix is austenite, and structure stability is good, and hot strength, toughness, thermal fatigue resistance can be good; High chromium height silicon ensures that guide plate has high oxidation-resistance, and higher carbon content and chromium, the adding of molybdenum alloy, ensure that guide plate matrix has enough carbide reinforced phases, intensity and hardness improve, and heat resistance, wear resistance are good.Rational manufacturing process ensure that guide plate dense structure, grain refining, without casting flaw; Carbide reinforced phase particle is tiny, and is uniformly distributed, and guide plate over-all properties significantly improves.Adopt the guide plate of above-mentioned manufacture technics, on multi-functional roll piercing mill, result of use is good, on average wears steel number more than 1000, is the twice in high chromium guide plate work-ing life, close to the work-ing life of nickelic guide plate.Guide plate manufacturing cost is only 1/3rd of nickelic guide plate.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The production technique of the once perforated guide plate in the technical program is:
1, smelt: 1 ton of intermediate frequency furnace is smelted to adopt and filled method altogether, tapping temperature 1550 DEG C, teeming temperature 1500-1520 DEG C, and bottom pour ladle is poured into a mould.
2, cast: adopt Moveable-combined type cast aluminium apperance, be equipped with special iron casting sandbox by guide plate die control gauge lattice, sandbox is provided with lifting mould rollover unit and venting hole.
3, adopt alkalescent phenol resin sand moulding, sand layer thickness 10-20mm (cold mould covers sand), artificial with the ramming of reinforcing bar bamboo clappers, molding after sclerosis, is coated with brush cast with alcohol zircon flour coating, after igniting drying, and mould assembling.After shake out card, oblique discharge (inclination angle 8-10 °), lay sprue cup, prosperous mouth is to be cast.
4, drawing cooling: after cast, monitor prosperous mouth temperature with infrared thermometer, prosperous mouth temperature reaches 850 DEG C, starts drawing by guide plate foundry goods air cooling.(guide plate casting temperature 850-900 DEG C)
Embodiment 1:
A kind of multi-functional roll piercing mill once perforated guide plate, its material comprises according to mass percent: C:2%, Si:1%, Mn:0.5%, Cr:26%, Ni; 9%, Mo; 0.6%, Ti0.4%, P0.02%, S<0.025%, surplus is iron, according to this ratio, the guide plate utilizing above-mentioned manufacture method to draw is relative to the high chromium guide plate of prior art and nickelic guide plate, and structure stability is good, and hot strength, toughness, thermal fatigue resistance can be good; Intensity and hardness improve, and heat resistance, wear resistance are good.Guide plate dense structure, grain refining, without casting flaw; Carbide reinforced phase particle is tiny, and is uniformly distributed, and guide plate over-all properties significantly improves.
Embodiment 2: a kind of multi-functional roll piercing mill once perforated guide plate, its material comprises according to mass percent:
C:1.9%, Si:0.8%, Mn:0.3, Cr:25%, Ni; 8%, Mo; 0.5%, Ti:0.3%, P<0.035%, S<0.035%, surplus is iron, according to this ratio, the guide plate utilizing above-mentioned manufacture method to draw is relative to the high chromium guide plate of prior art and nickelic guide plate, and structure stability is good, and hot strength, toughness, thermal fatigue resistance can be good; Intensity and hardness improve, and heat resistance, wear resistance are good.Guide plate dense structure, grain refining, without casting flaw; Carbide reinforced phase particle is tiny, and is uniformly distributed, and guide plate over-all properties significantly improves.
Embodiment 3: a kind of multi-functional roll piercing mill once perforated guide plate, its material comprises according to mass percent:
C:2.1%, Si:1.2%, Mn:0.6%, Cr:27%, Ni; 10%, Mo; 0.7%, Ti:0.5%, P<0.035%, S<0.035%, surplus is iron, according to this ratio, the guide plate utilizing above-mentioned manufacture method to draw is relative to the high chromium guide plate of prior art and nickelic guide plate, and structure stability is good, and hot strength, toughness, thermal fatigue resistance can be good; Intensity and hardness improve, and heat resistance, wear resistance are good.Guide plate dense structure, grain refining, without casting flaw; Carbide reinforced phase particle is tiny, and is uniformly distributed, and guide plate over-all properties significantly improves.
To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.
Claims (8)
1. a multi-functional roll piercing mill once perforated guide plate, it is characterized in that, its material comprises according to mass percent:
C:1.9%-2.1%, Si:0.8%-1.2%, Mn:0.3-0.6%, Cr:25%-27%, Ni; 8%-10%, Mo; 0.5%-0.7%, Ti:0.3%-0.5%, P<0.035%, S<0.035%, surplus is iron.
2. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described carbon is 2%.
3. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described silicon is 0.9%-1.0%.
4. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described manganese is 0.5%.
5. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described chromium is 26%.
6. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described nickel is 9%.
7. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described molybdenum is 0.6.
8. multi-functional roll piercing mill once perforated guide plate according to claim 1, is characterized in that, the mass percent of described titanium is 0.4%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109627.5A CN104789891B (en) | 2015-03-13 | 2015-03-13 | A kind of multi-functional roll piercing mill once perforated guide plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510109627.5A CN104789891B (en) | 2015-03-13 | 2015-03-13 | A kind of multi-functional roll piercing mill once perforated guide plate |
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| CN104789891A true CN104789891A (en) | 2015-07-22 |
| CN104789891B CN104789891B (en) | 2017-08-29 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088271A (en) * | 1992-12-16 | 1994-06-22 | 鞍山钢铁公司 | High temperature wear resistant alloy and manufacturing technology thereof |
| CN1180759A (en) * | 1997-09-18 | 1998-05-06 | 冶金工业部北京冶金设备研究院 | Assembly guide board for multiple high chromium caststeel mill and manufacture method thereof |
| CN101397639A (en) * | 2008-10-27 | 2009-04-01 | 袁厚之 | Guide plate for seamless steel pipe punching machine |
-
2015
- 2015-03-13 CN CN201510109627.5A patent/CN104789891B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088271A (en) * | 1992-12-16 | 1994-06-22 | 鞍山钢铁公司 | High temperature wear resistant alloy and manufacturing technology thereof |
| CN1180759A (en) * | 1997-09-18 | 1998-05-06 | 冶金工业部北京冶金设备研究院 | Assembly guide board for multiple high chromium caststeel mill and manufacture method thereof |
| CN101397639A (en) * | 2008-10-27 | 2009-04-01 | 袁厚之 | Guide plate for seamless steel pipe punching machine |
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| CN104789891B (en) | 2017-08-29 |
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Address after: 252000 Fenghuang Industrial Park, Liaocheng, Shandong Applicant after: XINPENGYUAN INTELLIGENT EQUIPMENT GROUP CO., LTD. Address before: 252000 Fenghuang Industrial Park, Liaocheng, Shandong Applicant before: Liaocheng Xin Pengyuan Metal Manufactures Ltd. |
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Effective date of registration: 20200319 Address after: 252000, No. three, 6 North Road, Fenghuang Industrial Park, Dongchangfu District, Shandong, Liaocheng, -3 Patentee after: Xinpengyuan (Liaocheng) Intelligent Technology Co., Ltd Address before: 252000 Phoenix Industrial Park, Shandong, Liaocheng Patentee before: XINPENGYUAN INTELLIGENT EQUIPMENT GROUP Co.,Ltd. |