CN102441457B - Ultra-strong high-chromium crushing wall special for conical sand making machine and assembly - Google Patents
Ultra-strong high-chromium crushing wall special for conical sand making machine and assembly Download PDFInfo
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- CN102441457B CN102441457B CN201110296944.4A CN201110296944A CN102441457B CN 102441457 B CN102441457 B CN 102441457B CN 201110296944 A CN201110296944 A CN 201110296944A CN 102441457 B CN102441457 B CN 102441457B
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Abstract
The present invention relates to a kind of cone sand making machine crushing wall that is used for by high chromium white antifriction cast iron make, make the abrasion resistance of crushing wall, resistance to fragility can improve ultra-strong high-chromium crushing wall special for conical sand making machine and the assembly of several times, it includes crushing wall assembly, described high chromium white antifriction cast iron crushing wall material is high chromium white antifriction cast iron, its chromium content more than or equal to or 9%, equal to or less than 32%, high chromium white antifriction cast iron crushing wall is built-in with net muscle.Advantage: one is that crushing wall anti-wear performance is greatly improved, and its wearability is about 5 times of current potassium steel crushing wall, is not only greatly prolonged service life, and the use cost of user is greatly reduced；Two is the impact resistance achieving and improve high chromium white antifriction cast iron crushing wall by the structure of physics, slow release impulsive force suffered by high chromium white antifriction cast iron crushing wall effectively, solve high chromium white antifriction cast iron crushing wall to be hit the defect of cracky, reduce manufacturing cost simultaneously.
Description
Technical field
The present invention relates to a kind of high chromium white antifriction cast iron be used for the making of crushing wall assembly in cone sand making machine, the abrasion resistance making crushing wall improves ultra-strong high-chromium crushing wall special for conical sand making machine and the assembly of several times, belongs to cone sand making machine crushing wall assembly and manufactures field.
Background technology
It is in the 3c mono-21cr height cast iron of theoretical research stage at present, in conjunction with all kinds of tup of disintegrating machine, the Double-metal composite hammer that 3c mono-21Cr rich chromium cast iron is formed with all kinds of carbon steel (containing 45# cast steel, 35# cast steel, 30# cast steel), potassium steel, low-alloy steel etc.." biliquid " double-metal composite casting process used in research and the Technology for Heating Processing of composite casting ensure that metallurgical binding and the metallurgical quality of bimetallic binding site, the binding site simultaneously guaranteeing bimetallic material is boundary, each still keeps the characteristic of each metal material, makes Double-metal composite hammer in use reach safe and reliable, durable, economic target.But this method is not used to crushing wall and the manufacture of crushing wall assembly in cone sand making machine, crushing wall power when by impacting during slow release sand of having no idea, easily cause the breakage of crushing wall, use the pole life-span short.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design one both to have high-wearing feature, and had again long-life ultra-strong high-chromium crushing wall special for conical sand making machine and crushing wall assembly.
Design: in order to realize above-mentioned purpose of design.1, the wear-resistant sleeve in crushing wall uses the design that high chromium white antifriction cast iron manufactures, and is one of the technical characteristic of the present invention.The purpose of do so is: contain the M of high rigidity in high-chromium white cast iron tissue7C3Type eutectic carbide (20 30%), the feature of display high-wearing feature part, but in use there is fracture in hard and crisp relatively low parts of toughness, the phenomenon unreliable, dangerous such as broken, had a strong impact on the rich chromium cast iron range with good abrasion resistance, improve the toughness of rich chromium cast iron, high performance be smelt worker for a long time make every effort to solve problem.Round the problem that this is anxious to be resolved, do substantial amounts of work both at home and abroad, it has in common that attempt changes the shape (spheroidizing, group nodularization, vermiform etc.) of eutectic carbide, effect nl increasing substantially cast iron mechanical property is brought to obtain being similar to changing Graphite in Cast Iron existing forms (flake graphite changes over spherical or rolls into a ball cotton-shaped or vermiform etc.), but result of study is not ideal enough, unstable, it is impossible to for industrialized production.Secondly, in high-chromium white cast iron matrix, the eutectic carbide of the chromium of high rigidity is separated out due to dispersion, show higher hardness and good impact resistance abrasive wear ability, existence yet with the eutectic carbide containing the higher chromium of 20 30% high rigidity fragility in microscopic structure, this toughness of material can be said to be relatively low, in the abrasive wear environment that HI high impact is strong, its serviceability is dangerous, unreliable, therefore, the cast iron of Gao Ge is not used in HI high impact abrasion field so far, and the application in HI high impact abrasive wear field is also very restricted.2, the packed layer between crushing wall and crushing wall backing plate is the design of zinc alloy layer, be the present invention technical characteristic two.The purpose of do so is: kirsite is to add other elementary composition alloys based on zinc.The alloying element often added has the Low Temperature Zn alloys such as aluminum, copper, magnesium, cadmium, lead, titanium.Kirsite feature is: fusing point is low, good fluidity, easily melting welding, soldering and plastic working, the most corrosion-resistant, the present invention utilizes the These characteristics of kirsite just, is poured between crushing wall and crushing wall backing plate by melted kirsite, make the gap between crushing wall and crushing wall backing plate be filled by kirsite densification completely, form kirsite packed layer.This kirsite packed layer not only has the characteristic of general zinc die casting alloys, and intensity is high, good casting property, mechanical property is had no significant effect by rate of cooling, and cast gate is simple, to overheated and remelting is insensitive, shrinkage factor is little, and pore is few, therefore when crushing wall is gone out by outside, the crushing wall of its tapering circulus itself can make impact transfer dynamic crushing wall in local all and be absorbed by intermediate filling layer, thus reach to avoid the breakage of high chromium white antifriction cast iron by frame for movement.3, crushing wall backing plate use potassium steel make, be the present invention technical characteristic three.The purpose of do so is: when the potassium steel of austenite structure is by shock loading, metal surface generation plastic deformation, and the result of working hardening, has and significantly process hardening phenomenon in deformation layer, and surface hardness increases substantially.During low shock loading, HB300～400 can be reached, during high impact loads, HB500～800 can be reached.With the difference of shock loading, case depth is up to 10～20mm.The hardened layer of high rigidity can resist impact abrasive wear.Because potassium steel is under the conditions of thump abrasive wear, there is the abrasion resistance of excellence, the present invention with this as the backing plate of high chromium white antifriction cast iron crushing wall, good wear-resisting mate can not only be formed with high chromium white antifriction cast iron crushing wall, and potassium steel has good toughness, it can slow release high chromium white antifriction cast iron crushing wall impact force effectively, it is to avoid the breakage of high chromium white antifriction cast iron crushing wall.4, be cast with the design of net muscle in high chromium white antifriction cast iron crushing wall, be the present invention technical characteristic four.The purpose of do so is: this net muscle can be to the M in high-chromium white cast iron tissue7C3Type eutectic carbide plays the effect of reinforcement, improves high-chromium white cast iron toughness, and then reduces thickness and the manufacturing cost of high-chromium white cast iron crushing wall.
Technical scheme 1: a kind of ultra-strong high-chromium crushing wall special for conical sand making machine, it includes that crushing wall assembly, described crushing wall material are high chromium white antifriction cast iron, its chromium content more than or equal to or 9%, equal to or less than 32%, crushing wall 1 is built-in with net muscle.
Technical scheme 2: a kind of ultra-strong high-chromium crushing wall special for conical sand making machine assembly, it includes crushing wall and crushing wall backing plate, and the gap filling layer between described crushing wall and crushing wall backing plate is zinc alloy layer, and high chromium white antifriction cast iron crushing wall is built-in with net muscle.
Technical scheme 3: a kind of ultra-strong high-chromium crushing wall special for conical sand making machine manufacture method, (1) it is cast with net muscle in high chromium white antifriction cast iron crushing wall and crushing wall backing plate cast form and high chromium white antifriction cast iron crushing wall, then carry out polish, and have a plurality of pouring groove for watering kirsite at crushing wall backing plate and high chromium white antifriction cast iron crushing wall matching surface；(2) the high chromium white antifriction cast iron crushing wall after polish and crushing wall backing plate are carried out the suit that coincide, then by kirsite fused solution, then pour in the gap between high chromium white antifriction cast iron crushing wall and crushing wall backing plate or cavity from a plurality of pouring groove, after cooling molding.
The present invention is compared with background technology, and one is that crushing wall anti-wear performance is greatly improved, and its wearability is about 5 times of current potassium steel crushing wall, is not only greatly prolonged service life, and the use cost of user is greatly reduced；Two is the impact resistance achieving and improve high chromium white antifriction cast iron crushing wall by net muscle structure, slow release impulsive force suffered by high chromium white antifriction cast iron crushing wall effectively, solve high chromium white antifriction cast iron crushing wall to be hit the defect of cracky, reduce manufacturing cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of ultra-strong high-chromium crushing wall special for conical sand making machine.
The sectional structure schematic diagram of Fig. 2 crushing wall backing plate.
Fig. 3 is the structural representation of the kirsite perfusion that crushing wall is constituted with crushing wall backing plate.
Detailed description of the invention
Embodiment 1: referring to the drawings 1 and 2.A kind of ultra-strong high-chromium crushing wall special for conical sand making machine, it includes crushing wall assembly, described crushing wall 1 material is high chromium white antifriction cast iron, its chromium content equals to or more than 9%, equal to or less than 32%, i.e. 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30, and include the arithmetic point between two integers, high chromium white antifriction cast iron crushing wall 1 is built-in with net muscle 6.Described net muscle 6 is strip-shaped net muscle or mesh muscle.
Embodiment 2: 1-3 referring to the drawings.A kind of ultra-strong high-chromium crushing wall special for conical sand making machine assembly, it includes crushing wall and crushing wall backing plate, gap filling layer between described high chromium white antifriction cast iron crushing wall 1 and crushing wall backing plate 3 is zinc alloy layer 2, and high chromium white antifriction cast iron crushing wall 1 is built-in with net muscle 6.Described net muscle 6 is strip-shaped net muscle or mesh muscle.Described high chromium white antifriction cast iron crushing wall 1 has a plurality of pouring groove 4 for watering kirsite with the matching surface of crushing wall backing plate 3.Described crushing wall backing plate 3 uses potassium steel to make.Described crushing wall backing plate 3 has a plurality of pouring groove 4 for watering kirsite with the matching surface of high chromium white antifriction cast iron crushing wall 1.
Embodiment 3: on the basis of embodiment 1 and 2, the gap filling layer between described crushing wall backing plate 3 and movable cone 5 is zinc alloy layer 2.Described crushing wall backing plate 3 has a plurality of pouring groove 4 for watering kirsite with the matching surface of movable cone 5.
Embodiment 4: referring to the drawings 5.On the basis of embodiment 1 and 2, a kind of ultra-strong high-chromium crushing wall special for conical sand making machine manufacture method, (1) it is cast with net muscle 6 in high chromium white antifriction cast iron crushing wall 1 and crushing wall backing plate 3 cast form and high chromium white antifriction cast iron crushing wall 1, then carry out polish, and have a plurality of pouring groove 4 for watering kirsite at crushing wall backing plate 3 and high chromium white antifriction cast iron crushing wall 1 matching surface；(2) the high chromium white antifriction cast iron crushing wall 1 after polish and crushing wall backing plate 3 are set with, then by kirsite fused solution, then pour in the gap between high chromium white antifriction cast iron crushing wall 1 and crushing wall backing plate 3 or cavity from a plurality of pouring groove, after cooling molding.Described kirsite is gravity cast zinc alloy.
Embodiment 5: on the basis of embodiment 3 and 4, crushing wall backing plate 3 after polish is enclosed within movable cone 5, then by kirsite fused solution, then pour in the gap between crushing wall backing plate 3 and movable cone 5 or cavity from a plurality of pouring groove, after cooling molding.
It is to be understood that: although the word that the mentality of designing of the present invention is contrasted detailed by above-described embodiment describes; but these words describe; simply the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any combination without departing from mentality of designing of the present invention, increase or revise, each falling within protection scope of the present invention.
Claims (6)
1. a ultra-strong high-chromium crushing wall special for conical sand making machine assembly, it includes crushing wall and crushing wall backing plate, it is characterized in that: described crushing wall material is high chromium white antifriction cast iron, its chromium content is more than or equal to 9%, or less than or equal to 32%, gap filling layer between described high chromium white antifriction cast iron crushing wall and crushing wall backing plate is zinc alloy layer, and high chromium white antifriction cast iron crushing wall is built-in with net muscle；Described high chromium white antifriction cast iron crushing wall has a plurality of pouring groove for watering kirsite with the matching surface of crushing wall backing plate；Or the matching surface of described crushing wall backing plate and high chromium white antifriction cast iron crushing wall has a plurality of pouring groove for watering kirsite；Its ultra-strong high-chromium crushing wall special for conical sand making machine manufacture method: be (1) cast with net muscle in high chromium white antifriction cast iron crushing wall and crushing wall backing plate cast form and high chromium white antifriction cast iron crushing wall, then carry out polish, and have a plurality of pouring groove for watering kirsite at crushing wall backing plate and high chromium white antifriction cast iron crushing wall matching surface；(2) the high chromium white antifriction cast iron crushing wall after polish and crushing wall backing plate are set with, then by kirsite fused solution, then pour in the gap between high chromium white antifriction cast iron crushing wall and crushing wall backing plate or cavity from a plurality of pouring groove, after cooling molding；(3) the crushing wall backing plate after polish is enclosed within movable cone, then by kirsite fused solution, then pours in the gap between crushing wall backing plate and movable cone or cavity from a plurality of pouring groove, after cooling molding.
Ultra-strong high-chromium crushing wall special for conical sand making machine assembly the most according to claim 1, is characterized in that: described net muscle is strip-shaped net muscle or mesh muscle.
Ultra-strong high-chromium crushing wall special for conical sand making machine assembly the most according to claim 1, is characterized in that: described crushing wall backing plate uses potassium steel to make.
Ultra-strong high-chromium crushing wall special for conical sand making machine assembly the most according to claim 1, is characterized in that: the gap filling layer between described crushing wall backing plate and movable cone is zinc alloy layer.
Ultra-strong high-chromium crushing wall special for conical sand making machine assembly the most according to claim 1, is characterized in that: described crushing wall backing plate has a plurality of pouring groove for watering kirsite with the matching surface of movable cone.
Ultra-strong high-chromium crushing wall special for conical sand making machine assembly the most according to claim 1, is characterized in that: it is characterized in that: described kirsite is gravity cast zinc alloy.
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| CN201110296944.4A CN102441457B (en) | 2011-09-30 | 2011-09-30 | Ultra-strong high-chromium crushing wall special for conical sand making machine and assembly |
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| CN201110296944.4A CN102441457B (en) | 2011-09-30 | 2011-09-30 | Ultra-strong high-chromium crushing wall special for conical sand making machine and assembly |
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| CN102441457B true CN102441457B (en) | 2016-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB771166A (en) * | 1954-07-16 | 1957-03-27 | Lester Rounds Macleod | Improvements in crusher linings |
| CN1036795C (en) * | 1994-06-28 | 1997-12-24 | 冶金工业部北京冶金设备研究院 | High strength and high chrome cast iron lining plate and its prodn. method |
| SE522667C2 (en) * | 2000-05-16 | 2004-02-24 | Proengco Tooling Ab | Process for the preparation of an iron-based chromium carbide containing dissolved tungsten and such an alloy |
| CN1904110A (en) * | 2005-07-29 | 2007-01-31 | 彭怀春 | dh ductile iron antiwear lining plate |
| CN100455378C (en) * | 2006-12-21 | 2009-01-28 | 安徽省安工机械制造有限公司 | Method for manufacturing high chromium white wear-resistant cast iron |
| CN201124101Y (en) * | 2007-10-30 | 2008-10-01 | 上海建设路桥机械设备有限公司 | Crushing cavity and body of spindle breaker |
| CN101613826B (en) * | 2009-07-11 | 2011-01-26 | 祁阳宇晖机电实业有限公司 | High chromium wear resistance white cast iron for lining plate of low-speed rolled crusher |
| CN201552020U (en) * | 2009-12-03 | 2010-08-18 | 浙江双金机械集团有限公司 | Sand making cavity specially used for cone-type sand making machine |
| CN202356126U (en) * | 2011-09-30 | 2012-08-01 | 浙江双金机械集团股份有限公司 | Ultra-strong high-chromium crushing wall assembly special for cone crusher |
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Address after: Pingyao Town, Yuhang District Nanshan village in Hangzhou City, Zhejiang province 311115 Applicant after: Zhejiang Shuangjin Machinery Holdings Co., Ltd. Address before: Pingyao Town, Yuhang District Nanshan village in Hangzhou City, Zhejiang province 311115 Applicant before: Zhejiang Shuangjin Machinery Group Co., Ltd. |
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