CN1081403A - The anti wearing block with cladded abrasion-resistant metal layer manufacture method - Google Patents
The anti wearing block with cladded abrasion-resistant metal layer manufacture method Download PDFInfo
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- CN1081403A CN1081403A CN 92105189 CN92105189A CN1081403A CN 1081403 A CN1081403 A CN 1081403A CN 92105189 CN92105189 CN 92105189 CN 92105189 A CN92105189 A CN 92105189A CN 1081403 A CN1081403 A CN 1081403A
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- metal
- abrasion
- hard alloy
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Abstract
The anti wearing block with cladded abrasion-resistant metal layer manufacture method adopts horizontal direction electroslag welding overlaying method.It is characterized in that putting the dystectic hard alloy particle of one deck proportion greater than steel at metal plate upper surface, during welding, hard alloy particle is by reentering the molten bath certainly, and postwelding forms the complex abrasion-proof layer.The carbide alloy wear-resistant block is welded in the position easy to wear of workpiece, in fields such as mining, excavation, probings extensive use is arranged.
Description
The present invention relates to a kind of manufacture method of hard alloy composite material wear-resistant block.
Anti wearing block with cladded abrasion-resistant metal layer is welded in the position easy to wear of workpiece, has been widely used in fields such as mining, excavation, probings.U.S. KENAMETAL company has adopted the method for casting to make this wear-resistant block, and the hard alloy particle casting in the carcass metal, is split into wear-resistant block, and the carcass volume of the wear-resistant block that this method is made is big, and alloy content is many, the cost height.
The objective of the invention is to change the original manufacture method of wear-resistant block.
The present invention is achieved in that and adopts the horizontal direction electroslag surfacing method that on the superincumbent metal plate of the source of welding current one termination, the other end is connected on following carbon steel or the steel alloy mother metal.The two is middle gapped for mother metal and metallic plate, and fill with solder flux in the gap, covers with solder flux on the metal plate.The striking of striking silk is adopted at the two poles of the earth.It is characterized in that on metal plate upper surface, putting the dystectic hard alloy particle of one deck proportion greater than steel.During welding, hard alloy particle is melted in the process of setting at mother metal and metal plate by from reentering the molten bath, and hard alloy particle is not melted and enters in the metal matrix, and postwelding forms the composite-material abrasive layer.This method is a thermal source with the resistance heat in the electroslag welding process, utilizes the characteristics of its heat source temperature low (1300 ℃～2000 ℃), is not melted after making hard alloy particle enter the molten bath, fusion or scaling loss.The hard alloy particle outer surface produces a meagre fusing fused layers, and has a certain amount of alloy diffusion to enter surfacing layer metal, makes surfacing layer form the sheet high carbon martensite, and hardness improves greatly.
The wear-resistant block base metals of processing with this method is ordinary low-carbon steel or steel alloy, is equivalent to thick cushion, has better toughness, simultaneously, has good weldability; The carcass volume of this wear-resistant block is little, does not add other alloy, and cost is low.
Welding process is as follows: after starting power supply; the starting the arc of striking silk; last plate fuses under the resistance heat effect of solder melts after the striking; later fusion process does not produce electric arc substantially, enters the electroslag welding process, and hard alloy particle is by reentering the molten bath certainly; the baffle plate of both sides makes the unlikely outflow of the solder flux of fusing; the solder flux on top layer makes hard alloy particle enter the molten bath and does not produce excessive splashing, and isolates air when hard alloy particle entered slag bath, plays a protective role.
This wear-resistant block typical sizes is about 100～300mm, wide 45mm, built-up welding floor height 5～6mm, the high 10mm of base metals; Hard alloy particle adopts tungsten carbide particle, and granularity is 4～5 orders; Its hardness number is as follows:
| Tungsten carbide particle | Overlay cladding carcass metal | The A3 steel matrix | |
| Hardness number | HRA86～91 | ≥HRC54～56 | ～ |
Claims (2)
1, the anti wearing block with cladded abrasion-resistant metal layer manufacture method, adopt the horizontal direction electroslag surfacing method, on the superincumbent metal plate of the source of welding current one termination, the other end is connected on following carbon steel or the steel alloy mother metal, the two is gapped for mother metal and metal plate, fill with solder flux in the gap, cover with solder flux on the metal plate, the striking of striking silk is adopted at the two poles of the earth, it is characterized in that putting the dystectic hard alloy particle of one deck proportion greater than steel on metal plate upper surface, during welding, hard alloy particle is by reentering the molten bath certainly, be melted in the process of setting at mother metal and metal plate, hard alloy particle is not melted and enters in the metal matrix, and postwelding forms the complex abrasion-proof layer.
2, anti wearing block with cladded abrasion-resistant metal layer manufacture method according to claim 1 is characterized in that at mother metal and metal top crown both sides baffle plate being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105189 CN1081403A (en) | 1992-07-16 | 1992-07-16 | The anti wearing block with cladded abrasion-resistant metal layer manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105189 CN1081403A (en) | 1992-07-16 | 1992-07-16 | The anti wearing block with cladded abrasion-resistant metal layer manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1081403A true CN1081403A (en) | 1994-02-02 |
Family
ID=4941212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105189 Pending CN1081403A (en) | 1992-07-16 | 1992-07-16 | The anti wearing block with cladded abrasion-resistant metal layer manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1081403A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625448A (en) * | 2014-12-19 | 2015-05-20 | 山东天工岩土工程设备有限公司 | Tungsten carbide particle wear-resistant layer structure and machining method and application of tungsten carbide particle wear-resistant layer structure |
| CN105499786A (en) * | 2015-12-30 | 2016-04-20 | 北京工业大学 | Method for preparing raw WC (Wolfram Carbide)-containing ceramic reinforced phase wear-resistant hard surface by electroslag surfacing |
| CN106001853A (en) * | 2015-03-27 | 2016-10-12 | 朴基弘 | Method for forming hard metal cemented carbide layer by welding work pieces with cemented carbide powder |
| CN108359975A (en) * | 2018-03-19 | 2018-08-03 | 山西焦煤爱钢装备再制造股份有限公司 | A kind of high abrasion-resistant bimetal composite plate and its processing method |
-
1992
- 1992-07-16 CN CN 92105189 patent/CN1081403A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625448A (en) * | 2014-12-19 | 2015-05-20 | 山东天工岩土工程设备有限公司 | Tungsten carbide particle wear-resistant layer structure and machining method and application of tungsten carbide particle wear-resistant layer structure |
| CN106001853A (en) * | 2015-03-27 | 2016-10-12 | 朴基弘 | Method for forming hard metal cemented carbide layer by welding work pieces with cemented carbide powder |
| CN105499786A (en) * | 2015-12-30 | 2016-04-20 | 北京工业大学 | Method for preparing raw WC (Wolfram Carbide)-containing ceramic reinforced phase wear-resistant hard surface by electroslag surfacing |
| CN108359975A (en) * | 2018-03-19 | 2018-08-03 | 山西焦煤爱钢装备再制造股份有限公司 | A kind of high abrasion-resistant bimetal composite plate and its processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |