CN1146497C - Wear resistant composite alloy parts and its producing method - Google Patents
Wear resistant composite alloy parts and its producing method Download PDFInfo
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- CN1146497C CN1146497C CNB001311239A CN00131123A CN1146497C CN 1146497 C CN1146497 C CN 1146497C CN B001311239 A CNB001311239 A CN B001311239A CN 00131123 A CN00131123 A CN 00131123A CN 1146497 C CN1146497 C CN 1146497C
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Abstract
The present invention provides a wearproof workpiece and a production method thereof, the wearproof workpiece is formed by remelting a layer of high chromium and carbon alloy on the working surface with common carbon steel as base materials, the high chromium and carbon alloy has the ingredients and the content of 45 to 65 % of Cr and 4.5 to 6.0 % of C, the total content of Si, Ni, Mn, B, W, etc. is from 0.5 to 6.5%, the content of S and P is larger than and equal to 0.04 %, and the rest is Fe. In the production method, carbon steel is processed into a workpiece according to the requirements for drawing paper, and the, an alloy layer having the thickness of 3 to 8mm is directly remelted on the working surface of the workpiece to form the wearproof workpiece. The workpiece manufactured by the method has the advantages of wearproof performance, shock resistance and low manufacturing cost, and the work efficiency and the economic benefit are increased.
Description
Technical field
The present invention relates to a kind of with medium carbon steel or soft steel as base material, on the working face of base material, make it to form wear resistant composite alloy parts and preparation method thereof and purposes with metallurgical remelting technology.
Background technology
Workpiece such as blade, instrument on ball mill interior lining panel, pulverizer hammer, slide block, bearing or sugar refinery cane shredder that use in present cement mill, mine, chemical plant, the whole high mangaenese steel of the employing that has, high chromium steel are cast, what have adds wear-resisting elements such as silicon, nickel, molybdenum, cobalt in carbon steel, the adding rare earth element that also has, with in improving, the characteristic of soft steel, the working face tungsten carbide button that also has, for example pulverizer hammer, cane shredder blade etc. at workpiece.Above-mentioned workpiece respectively has advantage, but also has some shortcomings respectively, and more crisp as the alloyed steel work-piece of whole cast, toughness is relatively poor, easily fracture; Easily come off after workpiece work for some time of tungsten carbide button's piece; Complete processing complexity, cost are also higher.
Chinese patent CN1140205 discloses " carbon interalloy wear resisting steel in a kind of ", its material chemical ingredients and content are C0.45-0.65, Si0.3-0.8, Mn0.4-1.0, Cr4.0-5.5, Mo0.3-0.7, V0.2-0.5, Re0.02-0.05, PS≤0.04, all the other are iron, and this wear resisting steel can be used for some workpiece.
Another part Chinese patent CN1013601 also discloses a kind of hard wear-resistant ferrous alloy, and its chemical ingredients is carbon 2.5-3, manganese 0.5-1.3 by weight percentage, silicon 0.3-1.3, chromium 25.0-30.0, molybdenum 2.0-2.5, vanadium 0.4-1.0, boron 3.0-4.0, sulphur, phosphorus are less than 0.05, and all the other are iron.This iron alloy is put into the tubular workpiece that needs compound inboard wall lining, and heating makes iron alloy remelting and rotational workpieces, carries out the centrifugal compound of melted alloy and workpiece, obtains having the mechanical devices on wear resistant corrosion resistant top layer.
The alloy element component of above-mentioned two parts of open source literatures is complicated, and smelting process technology is difficult for grasping, and the cost of making workpiece is higher, and application acquires a certain degree of difficulty, and adaptability is wideless.
Technology contents
The inventor has manufactured experimently out a kind of some shortcomings part that can overcome the above-mentioned background technology after research and testing, has good toughness, and workpiece working face hardness height is wear-resisting, the simple wear resistant composite alloy parts of making method.
Technical scheme of the present invention is: use common medium-carbon steel or soft steel as base material, be processed into workpiece or instrument, the parts etc. of required machinery earlier, select high chromium high carbon alloy then for use, adopt 3000-4000 ℃ high temperature directly to carry out the processing of metallurgical remelting technology on the workpiece working-surface making, this metallurgy remelting technology can adopt puts a floor height chromium high carbon alloy on workpiece that processes or instrument, obtain with carbon-point or high temperature electrode arc-melting; Perhaps high chromium high carbon alloy is made welding electrode or bulk, granular alloy, directly built-up welding or reweld on workpiece or instrument, make workpiece surface form the pervious course of 3-8mm thickness, behind the naturally cooling, just can obtain having flexible substrate, and working face hardness reaches the HRC=58-64 degree, shock resistance value α k=80-90J/cm
2, the wear resistant composite alloy parts of surface Working Temperature≤1200 ℃.
The composition and the content of the high chromium high carbon alloy of the present invention are:
Cr45-65%, C4.5-6.0%, the total content of W, Si, Ni, Mn, B are 0.5-6.5%, S, P≤0.04%, all the other are the Fe that participates in reaction in the base material.Be attached to medium carbon steel or surface of low-carbon steel 3-8mm through metallurgical remelting technology, the microstate of its metallographic structure is: primary carbide+eutectic+tissues such as martensite+residual austenite.
Medium carbon steel or the soft steel of making base material are the 20-45# steel.
By the composition of above-mentioned compound gold and content and making method is handled medium carbon steel or soft steel is the workpiece working face of base material, the remelted alloy workpiece that obtains, compared with the prior art, outstanding substantive distinguishing features and the obvious improvement that has is:
1, because base material adopts ductility, middle low carbon steel that snappiness is good, and working face adopts the wear-resisting remelted alloy layer of high chromium high-carbon, makes the existing snappiness of workpiece, wear resistance is arranged again, in workpiece when work, be frangibility not, and its surface hardness HRC reaches the 58-64 degree, and toughness reaches α k=80-90J/cm
2, and fall energy consumption and reach 5-10%, raise the efficiency 10%, prolonged the life-span.
2, technology of the present invention can be widely used in ball mill, crusher liner plate, tup, various forklift shovel board, the stirrer of industries such as mine, metallurgy, building materials, chemical industry or send instruments such as pulp grinder impeller, scraper plate, screw machine auger, beaming roller, axle sleeve, blade, the surface treatment of workpiece, wide adaptability, technology are uncomplicated, and middle-size and small-size foundry all can implement.
3, the metallurgical remelting workpiece of wear resistant alloy of the present invention, but instrument is than 30 times of normal carbon steel workpiece prolongs lifes, than tungsten carbide filler rod overlay cladding prolong friction durability 6-12 doubly, but manufacturing cost reduces more than 50% than the high chrome high-nickel alloy of the high-quality costliness of identical weight, rare earth alloy, carbon tungsten alloy etc.
4, wear-resisting workpiece of the present invention not only is fit to workpiece, parts, the instrument on the new engine, also be fit to the reparation of old workpiece, instrument, after being about to old workpiece and changeing, as long as shape, structure are not damaged, the employing remelting process is handled, still can reuse, so just save cost, improved benefit for factory.
5, wear-resisting workpiece of the present invention is as in the ball grinding machine lining board and as the application in the shredding machine blade of sugar refinery, and wear-resisting rate improves greatly, and energy-conservation of consumption reduction is remarkable.
Description of drawings
Accompanying drawing 1 is that composite alloy of the present invention is made into the ball mill wearing liner plate front view;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is that composite alloy of the present invention is made into sugar refinery sugar cane shredding machine blade synoptic diagram.
See that from Fig. 1, Fig. 2 the working face place of abrasion-proof backing block on liner plate main body 1 only need permeate one deck remelting wear resistant alloy 2, this laminated gold is that 6-8mm is enough.
Among Fig. 3, sugar refinery sugar cane shredding machine also is to get final product with pyrocarbon arc melting or the high chromium high-carbon of built-up welding composite alloy on the working face of vane body 1, and this layer iron alloy is 3-6mm.
Embodiment
Below be inventive embodiment:
Embodiment one
Choose 35# cast steel, be processed into the cement ball mill liner plate, will contain Cr50% then, C5%, B, Si, Ni, Mn total amount are 1.8%, the iron alloy of P, S≤0.04%, with 3500 ℃ of carbon arc weldings, directly the alloy layer of 4 millimeters of remelting one bed thickness on the working face of liner plate obtains the remelting liner plate, this liner plate and former use high manganese steel lining plate are relatively, output increases by 13%, and unit power consumption is economized 3.5kw/t, 3 years common 46.2 ten thousand KWh that totally economize on electricity, save 7.2 tons of liner plates, 850,000 yuan of volume increase cement profits.
Embodiment two
Choose 30# cast steel, be processed into the mine ball grinding machine lining board, to contain Cr55% then, C6.5%, B, W, Si, Ni, Mn total amount are 6%, and the wear resistant alloy of P.S≤0.04% is spent the directly alloy layer of remelting one deck 3-8mm on 30# cast steel of ℃ high temperature with 3800, but this liner plate increases output 10% than using 5 times of high manganese steel lining plate prolongs lifes.
Embodiment three
Choose the A3 steel plate, be processed into sugar refinery sugar cane shredding machine blade, to contain Cr55% then, C4%, W, Si, Ni, B, Mn total amount are 1%, the alloy of P, S≤0.04%, make welding rod, with 3000 ℃ of power supplys alloy with carbon arc remelting one deck 3-5mm on the blade work face, this blade improves about 30 times than the blade wear resisting property of plain carbon stool material, improve life-span 6-12 doubly than blade, can use 2 to press season with the built-up welding of carbon tungsten electrode.And the wolfram varbide built-up welding is all used in sugar refinery now, promptly will change in 1-3 month.
Embodiment four, use 35# cast steel, make pulverizer hammer, will contain Cr65%, C5% again, W, Si, Ni, B, Mn total amount are 2%, the alloy of P, S≤0.04%, with the alloy of 3200 degree ℃ carbon arc welding remelting one deck 5-10mm on working face, this tup is than 3 times of ZGMn13 high mangaenese steel tup long service life, hardness HRC60 degree, impact resistance are 90J/cm
2
Claims (6)
1, a kind of wear resistant composite alloy parts, high chromium high carbon alloy by common medium-carbon steel or soft steel base material and working face remelting is formed, it is characterized in that: the composition of high chromium high carbon alloy and content are: Cr45-65%, C4.5-6.0%, the total content of W, Si, Ni, B, Mn is 0.5-6.5, S, P≤0.04%, all the other are Fe, medium carbon steel or soft steel are the 20-45# steel.
2, a kind of manufacture method of wear resistant composite alloy parts as claimed in claim 1, it is characterized in that choosing medium carbon steel earlier or soft steel is processed into workpiece, make workpiece surface form the 3-8mm pervious course with 3000-4000 ℃ of pyrometallurgy remelting technology high chromium high carbon alloy then and obtain.
3, the manufacture method of wear resistant composite alloy parts according to claim 2 is characterized in that: pyrometallurgy remelting technology is carbon-point or high temperature electrode arc-melting.
4, the manufacture method of wear resistant composite alloy parts according to claim 2 is characterized in that: pyrometallurgy remelting technology is for making high chromium high carbon alloy material welding electrode or bulk, granular alloy, built-up welding or reweld on workpiece or instrument then.
5, a kind of purposes of wear resistant composite alloy parts as claimed in claim 1 is characterized in that it is as the application in the ball grinding machine lining board.
6, a kind of purposes of wear resistant composite alloy parts as claimed in claim 1 is characterized in that it is as the application in the shredding machine blade of sugar refinery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001311239A CN1146497C (en) | 2000-11-04 | 2000-11-04 | Wear resistant composite alloy parts and its producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001311239A CN1146497C (en) | 2000-11-04 | 2000-11-04 | Wear resistant composite alloy parts and its producing method |
Publications (2)
| Publication Number | Publication Date |
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| CN1290600A CN1290600A (en) | 2001-04-11 |
| CN1146497C true CN1146497C (en) | 2004-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB001311239A Expired - Fee Related CN1146497C (en) | 2000-11-04 | 2000-11-04 | Wear resistant composite alloy parts and its producing method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071265A (en) * | 2009-11-23 | 2011-05-25 | 黄超 | Wearable blade of shredder for sucrose preparation as well as manufacture method thereof |
| CN101746089B (en) * | 2009-12-23 | 2013-04-10 | 江苏明雨耐磨材料有限公司 | Thermostable and wear-resistant bimetal composite thin board and producing technique thereof |
| CN102310600A (en) * | 2011-07-22 | 2012-01-11 | 江苏联兴成套设备制造有限公司 | Bimetallic high alloy composite wear resistant liner plate |
| CN102896458A (en) * | 2011-07-26 | 2013-01-30 | 上海宝钢设备检修有限公司 | Surface treatment method for loop back rolls of hot continuous rolling units |
| CN105458456A (en) * | 2015-12-30 | 2016-04-06 | 首钢总公司 | Alloy adding powder for producing wear-resisting composite liner plate |
| CN105838973A (en) * | 2016-03-28 | 2016-08-10 | 黄惠玲 | High-strength steel plate and preparation process thereof |
| CN113182729B (en) * | 2021-04-19 | 2022-09-30 | 湖南沃盾新材料有限公司 | Powder capable of increasing weld mark strength of wear-resisting plate and preparation method thereof |
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2000
- 2000-11-04 CN CNB001311239A patent/CN1146497C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1290600A (en) | 2001-04-11 |
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