CN102500449B - Super abrasive circular cone sand making machine and rolled mortar wall assembly preparation method - Google Patents
Super abrasive circular cone sand making machine and rolled mortar wall assembly preparation method Download PDFInfo
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- CN102500449B CN102500449B CN201110296983.4A CN201110296983A CN102500449B CN 102500449 B CN102500449 B CN 102500449B CN 201110296983 A CN201110296983 A CN 201110296983A CN 102500449 B CN102500449 B CN 102500449B
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Abstract
The present invention relates to a kind of making high chromium white antifriction cast iron being used for rolled mortar wall assembly in circular cone sand making machine, rolled mortar wall abrasion resistance is made to improve super abrasive circular cone sand making machine and the rolled mortar wall assembly preparation method of several times, it comprises rolled mortar wall assembly, described rolled mortar wall material is high chromium white antifriction cast iron, its chromium content is equal to or greater than 9%, be equal to or less than 32%, in rolled mortar wall, be cast with net muscle.Advantage: one is that rolled mortar wall anti-wear performance improves greatly, and its wearability is about 5 times of current potassium steel rolled mortar wall, not only greatly extends service life, and the use cost of user reduces significantly; Two is achieve the impact resistance that improve high chromium white antifriction cast iron rolled mortar wall by the structure of physics, effectively the impulsive force of slowly-releasing suffered by high chromium white antifriction cast iron rolled mortar wall, solves high chromium white antifriction cast iron rolled mortar wall and to be hit the defect of cracky.
Description
Technical field
The present invention relates to a kind of super abrasive circular cone sand making machine rolled mortar wall that is used for by high chromium white antifriction cast iron to make, make rolled mortar wall abrasion resistance improve super abrasive circular cone sand making machine and the rolled mortar wall assembly preparation method of several times, belong to circular cone sand making machine and manufacture field.
Background technology
Be in the 3c mono-21cr height cast iron of theoretical research stage at present, in conjunction with all kinds of tup of disintegrating machine, by the Double-metal composite hammer that 3c mono-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. form." biliquid " double-metal composite casting process adopted in research and the Technology for Heating Processing of composite casting ensure that metallurgical binding and the metallurgical quality of bimetallic binding site, guarantee that the binding site of bimetallic material is boundary simultaneously, each still keeps the characteristic of each metal material, makes the target that Double-metal composite hammer in use reaches safe, reliable, durable, economic.But this method cannot be used for the manufacture of rolled mortar wall and rolled mortar wall assembly in super abrasive circular cone sand making machine, in slowly-releasing sand process of having no idea, rolled mortar wall is being subject to power when impacting, and easily causes the breakage of rolled mortar wall, uses the pole life-span short.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design one both had high-wearing feature, had again long-life super abrasive circular cone sand making machine and rolled mortar wall assembly preparation method.
Design: in order to realize above-mentioned purpose of design.1, the design that the wear-resistant sleeve in rolled mortar wall adopts high chromium white antifriction cast iron to manufacture is one of technical characteristic of the present invention.The object done like this is: the M containing high rigidity in high-chromium white cast iron tissue
7c
3type eutectic carbide (20-30%), the feature of display high-wearing feature part, but in use there is fracture in the lower parts of hard and crisp toughness, unreliable, the dangerous phenomenons such as fragmentation, had a strong impact on the rich chromium cast iron scope of application with good abrasion resistance, improved the toughness of rich chromium cast iron, high performance be smelt worker make every effort to for a long time solve problem.Round the problem that this is anxious to be resolved, do a large amount of work both at home and abroad, its common ground is the shape (spheroidizing, group nodularization, vermiform etc.) attempting to change eutectic carbide, the effect nl increasing substantially cast iron mechanical property is brought to obtain being similar to change 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, instability, cannot be used for suitability 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 shock-resistant abrasive wear ability, but due to the existence of 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 lower, in the abrasive wear environment that HI high impact is strong, its serviceability is dangerous, unreliable, therefore, the cast iron of Gao Ge cannot be used in HI high impact wearing and tearing field so far, and the application in HI high impact abrasive wear field is also very restricted.2, the packed layer between rolled mortar wall and rolled mortar wall backing plate is the design of zinc alloy layer, is technical characteristic two of the present invention.The object done like this is: kirsite is the alloy adding other elements composition based on zinc.The alloying element often added has the Low Temperature Zn alloys such as aluminium, copper, magnesium, cadmium, lead, titanium.Kirsite feature is: fusing point is low, good fluidity, easy melting welding, soldering and plastic working, corrosion-resistant in an atmosphere, the present invention utilizes the These characteristics of kirsite just, is poured in by the kirsite of melting between rolled mortar wall and rolled mortar wall backing plate, make the gap between rolled mortar wall and rolled mortar wall backing plate completely by kirsite fine and close fill, 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, cooling velocity has no significant effect mechanical property, and cast gate is simple, to overheated and remelting is insensitive, shrinkage factor is little, and pore is few, therefore when rolled mortar wall be subject to outside go out time, the dynamic rolled mortar wall of impact transfer that the rolled mortar wall of its tapering circulus itself can make local be subject to all and absorbed by intermediate filling layer, thus reaches the breakage avoiding high chromium white antifriction cast iron by frame for movement.3, rolled mortar wall backing plate adopts potassium steel to make, and is technical characteristic three of the present invention.The object done like this is: when the potassium steel of austenite structure is subject to shock loading, and plastic deformation occurs in metal surface, and the result of working hardening, in deformation layer, have obvious work hardening phenomenon, surface hardness increases substantially.During low shock loading, can HB300 ~ 400 be reached, during high impact loads, can HB500 ~ 800 be reached.With the difference of shock loading, case depth can reach 10 ~ 20mm.The hardened layer of high rigidity can resist impact abrasive wear.Because potassium steel is under thump abrasive wear condition, there is excellent abrasion resistance, this backing plate as high chromium white antifriction cast iron rolled mortar wall of the present invention, good wear-resistingly to mate can not only be formed with high chromium white antifriction cast iron rolled mortar wall, and potassium steel has good toughness, it can the impulsive force that is subject to of slowly-releasing high chromium white antifriction cast iron rolled mortar wall effectively, avoids the breakage of high chromium white antifriction cast iron rolled mortar wall.4, being cast with the design of net muscle in high chromium white antifriction cast iron rolled mortar wall, is technical characteristic four of the present invention.The object done like this is: this net muscle can to the M in high-chromium white cast iron tissue
7c
3type 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 rolled mortar wall.
Technical scheme 1: a kind of super abrasive circular cone sand making machine, it comprises circular cone sand making machine, and the rolled mortar wall material in described circular cone sand making machine is high chromium white antifriction cast iron, and its chromium content is more than or equal to or 9%, be equal to or less than 32%, high chromium white antifriction cast iron rolled mortar wall is built-in with net muscle.
Technical scheme 2: a kind of super abrasive circular cone sand making machine, it comprises circular cone sand making machine, high chromium white antifriction cast iron rolled mortar wall in described circular cone sand making machine and the gap filling layer between rolled mortar wall backing plate are zinc alloy layer, and high chromium white antifriction cast iron rolled mortar wall is built-in with net muscle.
Technical scheme 3: the special rolled mortar wall preparation method of a kind of super abrasive circular cone sand making machine, (1) high chromium white antifriction cast iron rolled mortar wall and the cast form of rolled mortar wall backing plate and be cast with net muscle in rolled mortar wall, then carry out fine finishining, and have many for watering the pouring groove of kirsite at high chromium white antifriction cast iron rolled mortar wall backing plate and rolled mortar wall matching surface; (2) the high chromium white antifriction cast iron rolled mortar wall after fine finishining and rolled mortar wall backing plate are carried out the suit that coincide, then by kirsite fused solution, then pour in gap between high chromium white antifriction cast iron rolled mortar wall and rolled mortar wall backing plate or cavity, after cooling forming from many pouring grooves.
The present invention is compared with background technology, and one is that rolled mortar wall anti-wear performance improves greatly, and its wearability is about 5 times of current potassium steel rolled mortar wall, not only greatly extends service life, and the use cost of user reduces significantly; Two is achieve the impact resistance that improve high chromium white antifriction cast iron rolled mortar wall by net muscle structure, the impulsive force of slowly-releasing suffered by high chromium white antifriction cast iron rolled mortar wall effectively, solve high chromium white antifriction cast iron rolled mortar wall to be hit the defect of cracky, reduce manufacturing cost simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of super abrasive circular cone sand making machine.
Fig. 2 is the partial structurtes schematic diagram of high chromium white antifriction cast iron rolled mortar wall.
Fig. 3 is A-A sectional structure schematic diagram in Fig. 1.
The partial structurtes schematic diagram of Fig. 4 rolled mortar wall backing plate.
A-A sectional structure schematic diagram in Fig. 5 Fig. 4.
Fig. 6 is the structural representation that kirsite that rolled mortar wall and rolled mortar wall backing plate are formed pours into.
Detailed description of the invention
Embodiment 1: with reference to accompanying drawing 1-3.A kind of super abrasive circular cone sand making machine, it comprises cone sand making machine, rolled mortar wall 1 material in described cone sand making machine is high chromium white antifriction cast iron, its chromium content is equal to or greater than 9%, be equal to or less than 32%, namely 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, high chromium white antifriction cast iron rolled mortar wall 1 is built-in with net muscle 5.Described net muscle 5 is strip-shaped net muscle or mesh muscle.
Embodiment 2: with reference to accompanying drawing 1-5.A kind of super abrasive circular cone sand making machine, it comprises cone sand making machine, high chromium white antifriction cast iron rolled mortar wall 1 in described cone sand making machine and the gap filling layer between rolled mortar wall backing plate 3 are zinc alloy layer 2, and high chromium white antifriction cast iron rolled mortar wall 1 is built-in with net muscle 5.Described net muscle 5 is strip-shaped net muscle or mesh muscle.Described high chromium white antifriction cast iron rolled mortar wall 1 has many for watering the pouring groove 4 of kirsite with the matching surface of rolled mortar wall backing plate 3.Described rolled mortar wall backing plate 3 adopts potassium steel to make.Described rolled mortar wall backing plate 3 has many for watering the pouring groove 4 of kirsite with the matching surface of high chromium white antifriction cast iron rolled mortar wall 1.
Embodiment 3: with reference to accompanying drawing 6.On the basis of embodiment 1 and 2, the special rolled mortar wall preparation method of a kind of high-chromium cast-iron conical sand making machine, (1) high chromium white antifriction cast iron rolled mortar wall 1 and rolled mortar wall backing plate 3 cast form and be cast with net muscle 5 in high chromium white antifriction cast iron rolled mortar wall 1, then carry out fine finishining, and have many for watering the pouring groove 4 of kirsite at rolled mortar wall backing plate 3 and high chromium white antifriction cast iron rolled mortar wall 1 matching surface; (2) the high chromium white antifriction cast iron rolled mortar wall 1 after fine finishining and rolled mortar wall backing plate 3 are set with, then by kirsite fused solution, then pour in gap between high chromium white antifriction cast iron rolled mortar wall 1 and rolled mortar wall backing plate 3 or cavity, after cooling forming from many pouring grooves.Described kirsite is gravity cast zinc alloy.
It is to be understood that: although above-described embodiment to be contrasted detailed text description to mentality of designing of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any do not exceed mentality of designing of the present invention combination, increase or amendment, all fall within the scope of protection of the present invention.
Claims (3)
1. a super abrasive circular cone sand making machine, it comprises circular cone sand making machine, it is characterized in that: the rolled mortar wall material in described circular cone sand making machine is high chromium white antifriction cast iron, and its chromium content is 9%-19%, high chromium white antifriction cast iron rolled mortar wall is built-in with net muscle, and net muscle is strip-shaped net muscle or mesh muscle; In described circular cone sand making machine, chromium content is the gap filling layer between the high chromium white antifriction cast iron rolled mortar wall of 9%-19% and rolled mortar wall backing plate is zinc alloy layer, and the matching surface of high chromium white antifriction cast iron rolled mortar wall and rolled mortar wall backing plate has many for watering the pouring groove of kirsite; The preparation method of rolled mortar wall is: (1) chromium content is the high chromium white antifriction cast iron rolled mortar wall of 9%-19% and the cast form of rolled mortar wall backing plate and is cast with net muscle in rolled mortar wall, then carry out fine finishining, and have many for watering the pouring groove of kirsite at rolled mortar wall backing plate and high chromium white antifriction cast iron rolled mortar wall matching surface; (2) the high chromium white antifriction cast iron rolled mortar wall after fine finishining and rolled mortar wall backing plate are set with, then by kirsite fused solution, pour in gap between high chromium white antifriction cast iron rolled mortar wall and rolled mortar wall backing plate or cavity from many pouring grooves, make the gap between rolled mortar wall and rolled mortar wall backing plate completely by kirsite fine and close fill, form kirsite packed layer, after cooling forming.
2. super abrasive circular cone sand making machine according to claim 1, is characterized in that: described rolled mortar wall backing plate adopts potassium steel to make.
3. super abrasive circular cone sand making machine according to claim 1, is characterized in that: described kirsite is gravity cast zinc alloy.
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| CN201110296983.4A CN102500449B (en) | 2011-09-30 | 2011-09-30 | Super abrasive circular cone sand making machine and rolled mortar wall assembly preparation method |
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| CN201110296983.4A CN102500449B (en) | 2011-09-30 | 2011-09-30 | Super abrasive circular cone sand making machine and rolled mortar wall assembly preparation method |
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| CN102500449A CN102500449A (en) | 2012-06-20 |
| CN102500449B true CN102500449B (en) | 2015-08-12 |
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| CN102302962B (en) * | 2011-09-30 | 2016-04-13 | 浙江双金机械集团股份有限公司 | Wear-resistant high-chromium rolling mortar wall special for conical sand making machine and assembly |
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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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