CN102389848A - High-chromium cast-iron cone sand-making machine and method for manufacturing high-chromium crushing wall assembly - Google Patents
High-chromium cast-iron cone sand-making machine and method for manufacturing high-chromium crushing wall assembly Download PDFInfo
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- CN102389848A CN102389848A CN2011102968189A CN201110296818A CN102389848A CN 102389848 A CN102389848 A CN 102389848A CN 2011102968189 A CN2011102968189 A CN 2011102968189A CN 201110296818 A CN201110296818 A CN 201110296818A CN 102389848 A CN102389848 A CN 102389848A
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Abstract
The invention relates to a high-chromium cast-iron cone sand-making machine (in which wear-resistant high-chromium white cast iron is applied to the manufacturing of a crushing wall assembly in a cone sand-making machine, so that the wear-resistant property of a crushing wall is increased by several times) and a method for manufacturing a high-chromium crushing wall assembly. The high-chromium cast-iron cone sand-making machine comprises a crushing wall assembly; a wear-resistant high-chromium white cast iron crushing wall is made of wear-resistant high-chromium white cast iron; and the chromium content of the crushing wall is equal to or greater than 9% and equal to or less than 32%. The machine and method disclosed by the invention have the advantages that: 1, the wear-resistant property of the crushing wall is greatly improved and is about 5 times higher than that of the existing high manganese steel crushing wall, therefore, the service life of the crushing wall is prolonged, and the use cost of users is greatly lowered; and 2, an effect of increasing the impact resistance of the wear-resistant high-chromium white cast iron crushing wall by using a physical structure is achieved, the impact force applied to the wear-resistant high-chromium white cast iron crushing wall is slowly released effectively, and the defect that the wear-resistant high-chromium white cast iron crushing wall subjected to impacting is easy to damage is overcome.
Description
Technical field
The present invention relates to a kind ofly the high chromium white antifriction cast iron is used for rich chromium cast iron conical sand making crusher machine wall makes; Make broken wall abrasion resistance improve the rich chromium cast iron conical sand making machine and the broken wall assembly of the high chromium preparation method of several times, belong to rich chromium cast iron conical sand making machine and make the field.
Background technology
Be in the high cast iron of 3c one 21cr of theoretical research stage at present, use all kinds of tups, the bimetallic composite hammer head that 3c one 21Cr rich chromium cast iron and all kinds of carbon steel (containing 45# cast steel, 35# cast steel, 30# cast steel), potassium steel, low-alloy steel etc. are formed in conjunction with disintegrating machine." biliquid " double-metal composite casting process that adopts in the research and the Technology for Heating Processing of composite casting have guaranteed that bimetallic combines the metallurgical binding and the metallurgical quality at position; The binding site of guaranteeing bimetallic material simultaneously is the boundary; Each person still keeps the characteristic of each person's metal material, makes the bimetallic composite hammer head in use reach safe, reliable, durable, economic target.But this method can't be used for the manufacturing of broken wall of rich chromium cast iron conical sand making machine and broken wall assembly, and broken wall is prone to cause the breakage of broken wall in the power that receives when impacting in the slowly-releasing system of the having no idea sand process, uses the utmost point life-span short.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design a kind of high-wearing feature that both had, have the broken wall assembly of long-life rich chromium cast iron conical sand making machine and high chromium preparation method again.
Design: in order to realize above-mentioned purpose of design.1, the wear-resistant sleeve in the broken wall adopts the design that the high chromium white antifriction cast iron is made, and is one of technical characterictic of the present invention.The purpose of doing like this is: the M that contains high rigidity in the high-chromium white cast iron tissue
7C
3Type eutectic carbide (20-30%); The characteristics that show the high-wearing feature part; Yet fracture in use appears in the low parts of hard and crisp toughness; Unreliable, dangerous phenomenon such as fragmentation has had a strong impact on the rich chromium cast iron scope of application with good abrasion resistance, and toughness, the high performance of improving rich chromium cast iron is to smelt the worker to make every effort to the problem that solves for a long time.Round this problem anxious to be solved; Done a large amount of work both at home and abroad; Its common ground is to attempt to change the shape (spheroidizing, group nodularization, vermiformization etc.) of eutectic carbide, change in the cast iron graphite and have form (flake graphite changes over spherical or rolls into a ball cotton-shaped or vermiform etc.) and bring the effect nl that increases substantially the cast iron mechanical property to obtain being similar to, yet result of study is not ideal enough; Instability can't be used for suitability for industrialized production.Secondly, in the high-chromium white cast iron matrix, because the eutectic carbide of the chromium of high rigidity is separated out in dispersion; Show higher hardness and good shock-resistant abrasive wear ability; Yet owing to contain the existence of the eutectic carbide of the higher chromium of 20-30% high rigidity fragility in the microscopic structure, this toughness of material can be said to be lower, in the strong abrasive wear environment of HI high impact; Its serviceability is dangerous; Unreliable, therefore, the cast iron of Gao Ge can't be used for HI high impact wearing and tearing field so far, also receives very big restriction in HI high impact abrasive wear Application for Field.2, the packed layer between broken wall and the broken wall backing plate is the design of zinc alloy layer, is two of technical characterictic of the present invention.The purpose of doing like this is: kirsite is to be that the basis adds the alloy that other elements are formed with zinc.The alloying element that often adds has low temperature kirsites such as aluminium, copper, magnesium, cadmium, lead, titanium.The kirsite characteristics are: fusing point is low, and good fluidity is prone to melting welding; Soldering and plastic working; Corrosion-resistant in atmosphere, the present invention utilizes the These characteristics of kirsite just, and the kirsite of fusion is poured between broken wall and the broken wall backing plate; Gap between broken wall and the broken wall backing plate is filled by the kirsite densification fully, form the 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; Cooling velocity does not have obvious influence to mechanical property, and cast gate is simple, to overheated insensitive with remelting; Therefore shrinkage factor is little, and pore is few, receives the outside when going out when broken wall; The impact that the broken wall of its tapering circulus itself can make the part receive is shifted moving broken wall and all and through intermediate filling layer is absorbed, thereby reaches the breakage of avoiding the high chromium white antifriction cast iron through frame for movement.3, broken wall backing plate adopts potassium steel to make, and is three of technical characterictic of the present invention.The purpose of doing like this is: when the potassium steel of austenite structure received shock loading, plastic deformation took place in the metal surface, and the result of working hardening has tangible work hardening phenomenon in deformation layer, and surface hardness increases substantially.When hanging down shock loading, HB300～400 can be reached, during high impact loads, HB500～800 can be reached.With the difference of shock loading, the cementation zone degree of depth can reach 10～20mm.The hardened layer of high rigidity can be resisted impact abrasive wear.Because of potassium steel under thump abrasive wear condition; Excellent abrasion resistance is arranged; The present invention not only can form good wear-resisting coupling with the broken wall of high chromium white antifriction cast iron, and potassium steel has good toughness with this backing plate as the broken wall of high chromium white antifriction cast iron; It is the impulsive force that receives of the broken wall of slowly-releasing high chromium white antifriction cast iron effectively, avoids the breakage of the broken wall of high chromium white antifriction cast iron.
Technical scheme 1: a kind of rich chromium cast iron conical sand making machine, it comprises the conical sand making machine, broken wall 1 material in the said conical sand making machine is the high chromium white antifriction cast iron, its chromium content more than or equal to or 9%, be equal to or less than 32%.
Technical scheme 2: a kind of rich chromium cast iron conical sand making machine, it comprises the conical sand making machine, the gap packed layer between broken wall of the high chromium white antifriction cast iron in the said conical sand making machine and the broken wall backing plate is a zinc alloy layer.
Technical scheme 3: the broken wall preparation method of the special-purpose high chromium of a kind of rich chromium cast iron conical sand making machine; ⑴ broken wall of high chromium white antifriction cast iron and the cast form of broken wall backing plate; Carry out fine finishining then, and have many pouring grooves that are used to water kirsite at broken wall backing plate and the broken wall matching surface of high chromium white antifriction cast iron; ⑵ broken wall of the high chromium white antifriction cast iron after with fine finishining and the broken wall backing plate suit that coincide; Then with the kirsite fused solution; Pour in the gap or cavity between broken wall of high chromium white antifriction cast iron and the broken wall backing plate from many pouring grooves then, get final product behind the cooling forming.
The present invention compares with background technology, and the one, broken wall anti-wear performance improves greatly, and its wearability is about 5 times of the broken wall of present potassium steel, not only prolong greatly service life, and user's use cost reduces significantly; The 2nd, realized that the structure with physics has improved the impact resistance of the broken wall of high chromium white antifriction cast iron, effectively slowly-releasing the suffered impulsive force of the broken wall of high chromium white antifriction cast iron, solved the be hit defective of cracky of the broken wall of high chromium white antifriction cast iron.
Description of drawings
Fig. 1 is the structural representation of rich chromium cast iron conical sand making machine.
Fig. 2 is the sectional structure sketch map of the broken wall of high chromium white antifriction cast iron.
The partial structurtes sketch map of the broken wall backing plate of Fig. 3.
Fig. 4 is the structural representation of the kirsite perfusion of broken wall and broken wall backing plate formation.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-2.A kind of rich chromium cast iron conical sand making machine; It comprises cone sand making machine; Broken wall 1 material in the said cone sand making machine is the high chromium white antifriction cast iron, and its chromium content is equal to or greater than 9%, is equal to or less than 32%; Promptly 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30, and comprise the decimal point between two integers.
Embodiment 2: with reference to accompanying drawing 1-4.A kind of rich chromium cast iron conical sand making machine, it comprises cone sand making machine, the gap packed layer between broken wall 1 of the high chromium white antifriction cast iron in the said cone sand making machine and the broken wall backing plate 3 is a zinc alloy layer 2.The broken wall 1 of said high chromium white antifriction cast iron has many pouring grooves 4 that are used to water kirsite with the matching surface of broken wall backing plate 3.Said broken wall backing plate 3 adopts potassium steel to make.Said broken wall backing plate 3 has many pouring grooves 4 that are used to water kirsite with the matching surface of the broken wall 1 of high chromium white antifriction cast iron.
Embodiment 3: on the basis of embodiment 1 and 2, the gap packed layer between said broken wall backing plate 3 and the mantle body 5 is a zinc alloy layer 2.Said broken wall backing plate 3 has many pouring grooves 4 that are used to water kirsite with the matching surface of mantle body 5.
Embodiment 4: with reference to accompanying drawing 1 and 4.On the basis of embodiment 1 and 2; The broken wall preparation method of the special-purpose high chromium of a kind of rich chromium cast iron conical sand making machine; ⑴ broken wall 1 of high chromium white antifriction cast iron and broken wall backing plate 3 cast forms; Carry out fine finishining then, and have many pouring grooves 4 that are used to water kirsite at broken wall 1 matching surface of broken wall backing plate 3 and high chromium white antifriction cast iron; ⑵ the broken wall 1 of the high chromium white antifriction cast iron after with fine finishining carries out suit with broken wall backing plate 3; Then with the kirsite fused solution; Pour in the gap or cavity between broken wall 1 of high chromium white antifriction cast iron and the broken wall backing plate 3 from many pouring grooves then, get final product behind the cooling forming.Said kirsite is the gravity cast zinc alloy.
Embodiment 5: on the basis of embodiment 3 and 4; Broken wall backing plate 3 after the fine finishining is enclosed within on the mantle body 5; With the kirsite fused solution, pour in the gap or cavity between broken wall backing plate 3 and the mantle body 5 from many pouring grooves then then, get final product behind the cooling forming.
What need understand is: though the foregoing description is to the mentality of designing of the present invention detailed text description of contrasting; But these text descriptions; Just the simple text of mentality of designing of the present invention is described; Rather than to the restriction of mentality of designing of the present invention, any combination, increase or modification that does not exceed mentality of designing of the present invention all falls in protection scope of the present invention.
Claims (10)
1. rich chromium cast iron conical sand making machine, it comprises the conical sand making machine, it is characterized in that: the broken wall material in the said conical sand making machine is the high chromium white antifriction cast iron, its chromium content more than or equal to or 9%, be equal to or less than 32%.
2. rich chromium cast iron conical sand making machine, it comprises the conical sand making machine, it is characterized in that: the gap packed layer between broken wall of the high chromium white antifriction cast iron in the said conical sand making machine and the broken wall backing plate is a zinc alloy layer.
3. rich chromium cast iron conical sand making machine according to claim 2 is characterized in that: the matching surface of broken wall of said high chromium white antifriction cast iron and broken wall backing plate has many pouring grooves that are used to water kirsite.
4. rich chromium cast iron conical sand making machine according to claim 2 is characterized in that: said broken wall backing plate adopts potassium steel to make.
5. rich chromium cast iron conical sand making machine according to claim 2 is characterized in that: the matching surface of the broken wall of said broken wall backing plate and high chromium white antifriction cast iron has many pouring grooves that are used to water kirsite.
6. rich chromium cast iron cone sand making machine according to claim 1 is characterized in that: the gap packed layer between said broken wall backing plate and the mantle body is a zinc alloy layer.
7. rich chromium cast iron cone sand making machine according to claim 1 is characterized in that: the matching surface of said broken wall backing plate and mantle body has many pouring grooves that are used to water kirsite.
8. the broken wall preparation method of the special-purpose high chromium of a cone sand making machine; It is characterized in that: broken wall of ⑴ high chromium white antifriction cast iron and the cast form of broken wall backing plate; Carry out fine finishining then, and have many pouring grooves that are used to water kirsite at broken wall backing plate and the broken wall matching surface of high chromium white antifriction cast iron; ⑵ broken wall of the high chromium white antifriction cast iron after with fine finishining and broken wall backing plate carry out suit; Then with the kirsite fused solution; Pour in the gap or cavity between broken wall of high chromium white antifriction cast iron and the broken wall backing plate from many pouring grooves then, get final product behind the cooling forming.
9. the broken wall preparation method of the special-purpose high chromium of cone sand making machine according to claim 8; It is characterized in that: the broken wall backing plate after the fine finishining is enclosed within on the mantle body; Then with the kirsite fused solution; Pour in the gap or cavity between broken wall backing plate and the mantle body from many pouring grooves then, get final product behind the cooling forming.
10. the broken wall preparation method of the special-purpose high chromium of cone sand making machine according to claim 8, it is characterized in that: said kirsite is the gravity cast zinc alloy.
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| CN2011102968189A CN102389848A (en) | 2011-09-30 | 2011-09-30 | High-chromium cast-iron cone sand-making machine and method for manufacturing high-chromium crushing wall assembly |
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| CN2011102968189A CN102389848A (en) | 2011-09-30 | 2011-09-30 | High-chromium cast-iron cone sand-making machine and method for manufacturing high-chromium crushing wall assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294280A (en) * | 2011-09-30 | 2011-12-28 | 浙江双金机械集团有限公司 | High-chromium crushing wall and assembly special for conical sand making machine |
| CN104801371A (en) * | 2015-04-03 | 2015-07-29 | 浙江双金机械集团股份有限公司 | Crushing wall of conical sand making machine, made of high manganese steel and high-carbon chromium steel, and manufacturing method of crushing wall |
| CN113560538A (en) * | 2021-07-14 | 2021-10-29 | 四川省柏均机械制造有限责任公司 | Device and process for inlaying high-chromium cast iron on high-manganese steel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294280A (en) * | 2011-09-30 | 2011-12-28 | 浙江双金机械集团有限公司 | High-chromium crushing wall and assembly special for conical sand making machine |
| CN102294280B (en) * | 2011-09-30 | 2016-08-10 | 浙江双金机械集团股份有限公司 | Cone sand making machine Special high-chromium crushing wall and assembly |
| CN104801371A (en) * | 2015-04-03 | 2015-07-29 | 浙江双金机械集团股份有限公司 | Crushing wall of conical sand making machine, made of high manganese steel and high-carbon chromium steel, and manufacturing method of crushing wall |
| CN113560538A (en) * | 2021-07-14 | 2021-10-29 | 四川省柏均机械制造有限责任公司 | Device and process for inlaying high-chromium cast iron on high-manganese steel |
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Application publication date: 20120328 |