CN103057207A - Composite wear-resistant liner of sandwich structure - Google Patents
Composite wear-resistant liner of sandwich structure Download PDFInfo
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- CN103057207A CN103057207A CN2013100328149A CN201310032814A CN103057207A CN 103057207 A CN103057207 A CN 103057207A CN 2013100328149 A CN2013100328149 A CN 2013100328149A CN 201310032814 A CN201310032814 A CN 201310032814A CN 103057207 A CN103057207 A CN 103057207A
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Abstract
The invention discloses a multi-layer composite super-wear-resistant liner of sandwich structure and a preparation process of the liner, belonging to the field of preparation of wear-resistant liners. The wear-resistant liner is composed of a substrate support layer, a bonding transition layer and a hard surface wear-resistant layer by compositing functionally graded materials, wherein the substrate support layer is formed by compression instead of conventional casting; the bonding transition layer is formed by flame remelting with self-fluxing alloy material, having good substrate invasion and high bonding strength; and the hard surface wear-resistant layer is formed by flame remelting with ceramic alloy material, having excellent bonding performance and high abrasive resistance. Compared to the prior art, by gathering the advantages of high toughness of the metal material and high abrasive resistance of the ceramic alloy material, the multi-layer composite super wear-resistant liner of sandwich structure and the preparation process thereof disclosed by the invention have the advantages of simple substrate forming process, low cost, and strong controllability of coating material and process, so that complicated technology for heating processing during an alloy casting process is avoided and the service life is prolonged by more than 10 times compared with that of ordinary steel liners.
Description
Technical field
The present invention relates to the abrasion-proof backing block in general fragmentation, grinding, pulverizing, flotation field and preparation method thereof, particularly super abrasion-proof backing block of a kind of MULTILAYER COMPOSITE and preparation method thereof.
Background technology
Abrasion-proof backing block is widely used in the industries such as mine, machinery, coal, electric power, often requires to have good abrasion resistance properties.Manufacturer adopts the materials such as high-strength steel and chromium manganese cast steel to resist this abominable height wearing and tearing always at present, but effect and integrated cost are always undesirable.Therefore, develop the good abrasion-proof backing block of a kind of hardness high-wearing feature, be machined directly into require shape in be lining in the position of serious wear, both be beneficial to maintenance, the decrease cost is of great significance the actual production tool again.
Patent 201110325429.4 discloses a kind of pass abrasion-resistant metal liner plate that contains, the plate body perforate, and plate body and pass wall outer surface are wearing layers, wearing layer is the quench-hardened case texturizing layer, by modified and Quenching Treatment.The wearing layer of pass wall and the wearing layer of plate body consist of the wear-resisting skeleton structure of metal backing jointly, have saved metal matrix material and have improved hardness and the wearability of liner plate.Said method still needs complicated Technology for Heating Processing.
Patent 200510041674.7 discloses a kind of ternary composite material abrasion resistant lining board and preparation technology thereof, it is composited by metal wire screen in nanometer structure, high-hardness ceramic rod, polyurethane elastomer three parts, ceramic rod is embedded in the metal wire screen in nanometer structure mesh, is combined into polyurethane to be integrated.This invention has solved cracked, single metal material corrosion resistance poor, the pure polyurethane of bulk pottery under impacting and torn in flakes the problem low with grinding efficiency under wear working condition.Yet heatproof and the ageing-resistant performance of polyurethane high molecule material are limited, have limited its application on largely.
The materials such as high-strength steel and chromium manganese cast steel that adopt prepare liner plate or employing overlaying method reparation liner plate more at present, and the pre-treating technology that needs before the weldering comprises annealing, machined, dye penetrant inspection, preheating etc., also may be because overlay cladding becomes phase-splitting difference larger with parent metal, it is larger that linear expansion coefficient also differs, thereby cause larger internal stress, so that overlay cladding cracks in cooling procedure and peels off.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of shock-resistant, wear-resistant, service life is long and the simple MULTILAYER COMPOSITE abrasion-proof backing block of preparation technology.
In order to overcome the above problems, the present invention is achieved by the following technical programs.
A kind of sandwich structure composite abrasion-proof inner plate is characterized in that, this liner plate is composited by ground supporting layer, bonding transition zone and surface hard wearing layer three parts, and this abrasion-proof backing block is the preparation method may further comprise the steps:
(1) cuts the steel plate of selecting, form the ground supporting layer through colding pressing;
(2) above-mentioned ground support layer surface is through after rust cleaning and the alligatoring, and employing self-melting alloy material in its surface, forms the bonding transition zone through preheating and flame remolten moulding by adhesive coated again;
(3) cermet material is surperficial in above-mentioned bonding transition zone by adhesive coated, form the surface hard wearing layer through preheating and flame remolten moulding.
Further, the steel plate of selecting in the described abrasion-proof backing block preparation process (1) is the Q550 high strength steel, and its concrete component (Wt.%) is: C≤0.20%, Si≤0.80%, Mn≤1.70%, P≤0.025%, S≤0.015%, Cu≤0.50%, Cr≤1.50%, Ni≤2.00%, Mo≤0.70%, B≤0.0050%, V≤0.12%, Nb≤0.06%, Ti≤0.05%, Fe are surplus; Self-melting alloy material in the described abrasion-proof backing block preparation process (2) is nickel base self-fluxing alloy powder Ni-15, and its concrete component (Wt.%) is: C≤0.10%, Fe≤6.00%, B are that 0.8 ~ 1.4%, Si is that 1.6 ~ 2.4%, Ni is surplus; Cermet material in the described abrasion-proof backing block preparation process (3) is the mixed powder of nickel base self-fluxing alloy powder Ni-60 and cobalt coated tungsten carbide alloy powder WC-17%Co, its mass ratio is 4:1, above-mentioned two kinds of concrete components of powder (Wt.%) are as follows respectively: the Ni-60 component is Fe≤8%, C is 0.5 ~ 1.0%, Cr is 14 ~ 19%, Si is that 3.5 ~ 5.0%, B is that 3.0 ~ 4.5%, Ni is surplus; The WC-17%Co component is that Co is 16 ~ 18%, Fe≤0.3%, and C is that 5 ~ 6%, O is that≤0.2%, W is surplus.
The wear-resisting composite liner of the present invention is composited by ground supporting layer, bonding transition zone and surface hard wearing layer function-graded material.The ground supporting layer does not need conventional moulding by casting by compressing; The bonding transition zone is by the moulding of self-melting alloy material flame remolten, and is good with the ground wellability, bond strength is high; The surface hard wearing layer is by the moulding of cermet material flame remolten, and adhesive property is excellent and scuff resistance is high.
Compared with prior art, technique effect of the present invention is as follows:
(1) ground supporting layer of the present invention is by cold moudling, avoids the energy resource consumption of moulding by casting;
(2) abrasion-proof backing block of the present invention has compiled the high tenacity of metal material and the high-wearing feature advantage of cermet material;
(3) coating material of the present invention and process controllability are strong, have avoided Technology for Heating Processing complicated in the Alloys Casting process, and improve ten times or more than common steel liner plate service life;
(4) the present invention's lining material Surface Oxygen acetylene remelting of going for the preparation of all kinds of lining materials and wearing and tearing forms bonding transition zone and hard wear-resistant layer and realizes repairing etc., and is practical.
Description of drawings
Fig. 1 is the composite liner structural representation; Wherein: 1,2,3 represent respectively ground supporting layer, bonding transition zone and surface hard wearing layer.
Fig. 2 is embodiment 1 matrix and coating abrasion amount comparison diagram.
Fig. 3 is embodiment 2 matrixes and coating abrasion amount comparison diagram.
Fig. 4 is embodiment 3 matrixes and coating abrasion amount comparison diagram.
Fig. 5 is surface topography ESEM comparison diagram after embodiment 1 matrix and coating abrasion are tested; (a) is matrix among the figure, (b) is coating.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples, but the present invention is not limited to following embodiment.
Get Q550 steel cutting processing, colding pressing forms required liner plate shape, surface sand-blasting; Be 1:20 with adhesive and Ni-15 powder proportions, transfer to thickly with alcohol, be coated on specimen surface, place 150 ℃ of oven dry of resistance furnace, 1 h.Use first oxy-acetylene flame to make sample be preheated to 780 ℃ ~ 820 ℃; Then carry out flame remolten, adopt the neutral partially carbon flame of oxy-acetylene flame that above-mentioned sample is carried out remelting and process, spray gun and about 25 ~ 30 mm of surface of the work distance, be the 75o angle with sample plane, remelting rifle gait of march 120 ~ 140mm/min, oxygen pressure 0.30MPa, acetylene pressure 0.10MPa; When surface appearance/minute surface is reflective, air cooling.Adopt again technique same as described above to apply to contain Ni-60 and the WC-17%Co(ratio is 4:1), coating layer thickness is about 1.2 ~ 1.6mm after twice remelting.
Adopt MPX-200A type dish pin formula abrasion tester that matrix material and coating are carried out the Abrasive Wear test.Take pin-dish contact friction form.The disk friction radius is 13mm, pin diameter 5mm, and experimental condition is: room temperature, dry friction, rotating speed 260r/min, load 50N, wearing-in period is 10min, and its coating and the contrast of ground matrix wearing and tearing quality are as shown in Figure 2.Reduce to 63.3mg through the wearing and tearing quality after the coating from 1593.5mg, descend 96.0%.Fig. 5 is surface topography ESEM comparison diagram after matrix and coating abrasion are tested, and wherein heavy wear appears in matrix sample (a) surface, shows under DRY SLIDING to cause adhesion wear owing to local sticking the connection occurs friction surface; And coating sample (b) surface local forms the spot corrosion wearing and tearing also because the contact fatigue that heavy load effect lower surface metal produces forms micro-flaw, but its most positions form wearing layer, especially highlighted position among the figure because pottery strengthens the existence of body.
Get Q235 steel cutting processing, colding pressing forms required liner plate shape, surface sand-blasting; Be 1:20 with adhesive and F-103 powder proportions, transfer to thickly with alcohol, be coated on specimen surface, place 150 ℃ of oven dry of resistance furnace, 1 h.Use first oxy-acetylene flame to make sample be preheated to 780 ℃ ~ 820 ℃; Then carry out flame remolten, adopt the oxy-acetylene flame neutral flame that above-mentioned sample is carried out remelting and process, spray gun and about 25 ~ 30 mm of surface of the work distance, be the 75o angle with sample plane, remelting rifle gait of march 100 ~ 120mm/min, oxygen pressure 0.30MPa, acetylene pressure 0.06MPa; When surface appearance/minute surface is reflective, air cooling.Adopt again technique same as described above to apply to contain Fe-65 and the WC-20%Ni(ratio is 4:1), coating layer thickness is about 0.9 ~ 1.2mm after twice remelting.
Adopt MPX-200A type dish pin formula abrasion tester that matrix material and coating are carried out the Abrasive Wear test.Take pin-dish contact friction form.The disk friction radius is 13mm, pin diameter 5mm, and experimental condition is: room temperature, dry friction, rotating speed 260r/min, load 50N, wearing-in period is 10min, and its coating and the contrast of ground matrix wearing and tearing quality are as shown in Figure 3.Reduce to 110.0mg through the wearing and tearing quality after the coating from 1264.0mg, descend 91.3%.
Get 1025 steel cutting processing, colding pressing forms required liner plate shape, surface sand-blasting; Be 1:25 with adhesive and F-101 powder proportions, transfer to thickly with alcohol, be coated on specimen surface, place 150 ℃ of oven dry of resistance furnace, 1 h.Use first oxy-acetylene flame to make sample be preheated to 780 ℃ ~ 820 ℃; Then carry out flame remolten, adopt the oxy-acetylene flame neutral flame that above-mentioned sample is carried out remelting and process, spray gun and about 25 ~ 30 mm of surface of the work distance, be the 75o angle with sample plane, remelting rifle gait of march 80 ~ 100mm/min, oxygen pressure 0.30MPa, acetylene pressure 0. 08MPa; When surface appearance/minute surface is reflective, air cooling.Adopt again technique same as described above to apply to contain Ni-21 and the WC-20%Ni(ratio is 4:1), coating layer thickness is about 1.2 ~ 1.5mm after twice remelting.
Adopt MPX-200A type dish pin formula abrasion tester that matrix material and coating are carried out the Abrasive Wear test.Take pin-dish contact friction form.The disk friction radius is 13mm, pin diameter 5mm, and experimental condition is: room temperature, dry friction, rotating speed 260r/min, load 50N, wearing-in period is 10min, and its coating and the contrast of ground matrix wearing and tearing quality are as shown in Figure 4.Reduce to 96.5mg through the wearing and tearing quality after the coating from 1122.9mg, descend 91.4%.
Claims (2)
1. a sandwich structure composite abrasion-proof inner plate is characterized in that, this liner plate is comprised of ground supporting layer, bonding transition zone and surface hard wearing layer three parts, and this abrasion-proof backing block is the preparation method may further comprise the steps:
(1) cuts the steel plate of selecting, form the ground supporting layer through colding pressing;
(2) above-mentioned ground support layer surface is through after rust cleaning and the alligatoring, and employing self-melting alloy material in its surface, forms the bonding transition zone through preheating and flame remolten moulding by adhesive coated again;
(3) cermet material is surperficial in above-mentioned bonding transition zone by adhesive coated, form the surface hard wearing layer through preheating and flame remolten moulding.
2. a kind of sandwich structure composite abrasion-proof inner plate as claimed in claim 1 is characterized in that, the steel plate of selecting in the described abrasion-proof backing block preparation process (1) is the Q550 high strength steel, its concrete component (Wt.%) is: C≤0.20%, Si≤0.80%, Mn≤1.70%, P≤0.025%, S≤0.015%, Cu≤0.50%, Cr≤1.50%, Ni≤2.00%, Mo≤0.70%, B≤0.0050%, V≤0.12%, Nb≤0.06%, Ti≤0.05%, Fe are surplus; Self-melting alloy material in the described abrasion-proof backing block preparation process (2) is nickel base self-fluxing alloy powder Ni-15, and its concrete component (Wt.%) is: C≤0.10%, Fe≤6.00%, B are that 0.8 ~ 1.4%, Si is that 1.6 ~ 2.4%, Ni is surplus; Cermet material in the described abrasion-proof backing block preparation process (3) is the mixed powder of nickel base self-fluxing alloy powder Ni-60 and cobalt coated tungsten carbide alloy powder WC-17%Co, its mass ratio is 4:1, above-mentioned two kinds of concrete components of powder (Wt.%) are as follows respectively: the Ni-60 component is Fe≤8%, C is 0.5 ~ 1.0%, Cr is 14 ~ 19%, Si is that 3.5 ~ 5.0%, B is that 3.0 ~ 4.5%, Ni is surplus; The WC-17%Co component is that Co is 16 ~ 18%, Fe≤0.3%, and C is that 5 ~ 6%, O is that≤0.2%, W is surplus.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465555A (en) * | 2013-07-24 | 2013-12-25 | 创斯达（南通）机电有限公司 | Composite abrasion-resistant plate structure for bank financial equipment |
| CN103667990A (en) * | 2013-11-20 | 2014-03-26 | 马鞍山市益丰实业集团有限公司 | Heat-resistant wear-resistant alloy steel lining board material and preparation method thereof |
| CN103667989A (en) * | 2013-11-20 | 2014-03-26 | 马鞍山市益丰实业集团有限公司 | Rare-earth wear-resistant stainless steel lining board material and preparation method thereof |
| CN103667946A (en) * | 2013-11-20 | 2014-03-26 | 马鞍山市益丰实业集团有限公司 | Tungsten-containing heat-resistant alloy steel lining board material and preparation method thereof |
| CN105063499A (en) * | 2015-07-20 | 2015-11-18 | 安徽工程大学 | Surface coating part for reproduction of ball mill liner plate and manufacturing method for surface coating part |
| WO2017035920A1 (en) * | 2015-08-28 | 2017-03-09 | 南通高欣耐磨科技股份有限公司 | Method for fabricating low-cost, highly wear-resistant ceramic-alloy composite liner |
| CN108160707A (en) * | 2018-01-17 | 2018-06-15 | 浙江汇新新能源科技有限公司 | A kind of carbon steel composite with and preparation method thereof |
| CN109018747A (en) * | 2018-09-29 | 2018-12-18 | 山西沁新能源集团股份有限公司 | A kind of moulded coal coal bin |
| CN112096734A (en) * | 2019-06-18 | 2020-12-18 | 南京湛泸科技有限公司 | Turntable bearing and manufacturing method thereof |
| CN113046677A (en) * | 2021-03-12 | 2021-06-29 | 昆明理工大学 | Flaky ceramic/aluminum alloy composite material and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465555A (en) * | 2013-07-24 | 2013-12-25 | 创斯达（南通）机电有限公司 | Composite abrasion-resistant plate structure for bank financial equipment |
| CN103667990A (en) * | 2013-11-20 | 2014-03-26 | 马鞍山市益丰实业集团有限公司 | Heat-resistant wear-resistant alloy steel lining board material and preparation method thereof |
| CN103667989A (en) * | 2013-11-20 | 2014-03-26 | 马鞍山市益丰实业集团有限公司 | Rare-earth wear-resistant stainless steel lining board material and preparation method thereof |
| CN103667946A (en) * | 2013-11-20 | 2014-03-26 | 马鞍山市益丰实业集团有限公司 | Tungsten-containing heat-resistant alloy steel lining board material and preparation method thereof |
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| CN105063499A (en) * | 2015-07-20 | 2015-11-18 | 安徽工程大学 | Surface coating part for reproduction of ball mill liner plate and manufacturing method for surface coating part |
| WO2017035920A1 (en) * | 2015-08-28 | 2017-03-09 | 南通高欣耐磨科技股份有限公司 | Method for fabricating low-cost, highly wear-resistant ceramic-alloy composite liner |
| CN108160707A (en) * | 2018-01-17 | 2018-06-15 | 浙江汇新新能源科技有限公司 | A kind of carbon steel composite with and preparation method thereof |
| CN109018747A (en) * | 2018-09-29 | 2018-12-18 | 山西沁新能源集团股份有限公司 | A kind of moulded coal coal bin |
| CN112096734A (en) * | 2019-06-18 | 2020-12-18 | 南京湛泸科技有限公司 | Turntable bearing and manufacturing method thereof |
| CN113046677A (en) * | 2021-03-12 | 2021-06-29 | 昆明理工大学 | Flaky ceramic/aluminum alloy composite material and preparation method thereof |
| CN113046677B (en) * | 2021-03-12 | 2023-05-26 | 昆明理工大学 | Flaky ceramic/aluminum alloy composite material and preparation method thereof |
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Application publication date: 20130424 |