CN101985158B - Method for casting manganese steel broken wall or mortar-rolling wall of cone crusher by internal and external metal molds sand-lining - Google Patents
Method for casting manganese steel broken wall or mortar-rolling wall of cone crusher by internal and external metal molds sand-lining Download PDFInfo
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- CN101985158B CN101985158B CN2010101548994A CN201010154899A CN101985158B CN 101985158 B CN101985158 B CN 101985158B CN 2010101548994 A CN2010101548994 A CN 2010101548994A CN 201010154899 A CN201010154899 A CN 201010154899A CN 101985158 B CN101985158 B CN 101985158B
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Abstract
The invention discloses a method for casting a manganese steel broken wall or a mortar-rolling wall of a cone crusher by internal and external metal molds sand-lining, comprising the following steps: (1) manufacturing the metal sample mold of the crush wall or the mortar wall of a crusher; (2) manufacturing a near net internal metal mold and a near net external metal mold which have corresponding wall thicknesses according to the shape of the sample; (3) assembling the external metal mold, the sample mold, and the internal metal mold on a molding baseboard, and reserving a cavity; (4) putting sand into the cavity, ramming and hardening; (5) drawing to obtain an external metal mold sand-lined layer and an internal metal mold sand-lined layer, coating an alcohol-based paint on the surface, and burning to dry the surface; (6) pouring the external metal mold and the internal metal mold on a casting baseboard, covering a cover box, and fastening to form an integrated internal and external metal molds sand-lined cavity; and (7) pouring by the molten manganese steel, keeping the temperature and cooling. The casting prepared by the invention is not smashed, and the crystal particles of the surface texture are fine and clean and dimensional accuracy is high. By using the method in the invention, the resin film on the surface of the former sand can be effectively removed, and the former sand is high in reuse rate.
Description
Technical field
The present invention relates to the casting method of broken wall of gyratory crusher manganese steel or rolled mortar wall, particularly a kind of method that adopts inside and outside broken wall of metal type sand-covering casting gyratory crusher manganese steel or rolled mortar wall.
Background technology
Gyratory crusher is the disintegrating apparatus that is widely used in the industrial trades such as metallurgy, mine, building materials, refractory material, the energy.Broken wall, rolled mortar wall are the main wear-out parts of gyratory crusher, and the quality of its quality directly has influence on the crushing efficiency and the quality of raw material, also directly has influence on the output and the technical-economic index of product.
At present the broken wall that uses in the gyratory crusher, rolled mortar wall wearing piece material be still based on potassium steel ZGMn13, or add trace alloying element according to working condition in the matrix of potassium steel, with the serviceability and the life-span of further improving wearing piece.So far the broken wall of domestic production, rolled mortar wall potassium steel wear resistance castings, the casting method of particularly medium-and-large-sized cone crushing wall, rolled mortar wall foundry goods mainly contains: limestone sand waterglass CO
2Manual strickle moulding hardens; Quartz sand waterglass CO
2Method for curing is with sandbox, natural pattern hand moulding.Its main method process is: assemble outer sandbox, natural pattern, interior sandbox → on the natural pattern surface apply fill out certain thickness facing sand → the foundry goods working face put certain thickness and quantity every sand cooling iron → filling floor sand and the reality of pounding → blow CO
2Sclerosis → molding → repair type → inside and outside sand mold surface brush coating, surface drying → mould assembling → cast → cooling → peeling etc.Above-mentioned formative method advantage is that the moulding flexibility is big, is convenient to produce various types of parts, and the raw and auxiliary material source of moulding is wide, and cost is low etc.Not enough is: formative method is extensive, and efficient is low, and casting dimension accuracy is low, and surface roughness is relatively poor, restive every sand layer thickness every the sand external chill particularly, casting quality instability; Casting flaws such as scab, sand hole, burr are unavoidable; And the cleaning of water-glass sand casting falling sand is difficult, and subsequent handling labour intensity is big, the cost height.Water-glass sand old sand reuse simultaneously is also difficult, and the iron sand ratio is generally 1: 3～5, and the regenerating used load is heavy, and the sand reclaiming plant investment is big.Therefore, most enterprises have to be discarded with old sand, must pollute surrounding environment.
Summary of the invention
The object of the present invention is to provide the method for a kind of inside and outside broken wall of metal type sand-covering casting gyratory crusher manganese steel or rolled mortar wall.The foundry goods that this method is produced can not produce cracked, and surface texture crystal grain is thin, bright and clean, and the dimensional accuracy height can be removed the resin molding on old sand grain surface effectively, repeated use of sand rate height.
Objects of the present invention are achieved through the following technical solutions:
The method of the inside and outside metal type sand-covering casting of the present invention broken wall of gyratory crusher manganese steel or rolled mortar wall comprises the steps:
(1) makes crusher in crushing wall or rolled mortar wall metal natural pattern, according to the material and the design feature of foundry goods, select suitable foundry goods shrinkage factor, and natural pattern is carried out machined, make smooth surface;
(2), manufacture and design the interior metal mold of nearly shape and the outer metal mold of nearly shape of corresponding wall thickness respectively according to the full pattern shape of cone crushing wall or the different size specification models of rolled mortar wall;
(3) outer metal mold, natural pattern and interior metal mold are assemblied on the mold(ing) board, reserve die cavity;
(4) it is real to add sand rammer in the die cavity between the metal mold outside metal mold, the nearly shape in metal natural pattern and nearly shape, and sclerosis;
(5) molding obtains even, ganoid outer metal type sand-covering layer of consolidation and interior metal type sand-covering layer, interior metal type sand-covering layer and outside the external coating alcohol-base paint of metal type sand-covering layer, and light surface drying;
(6) outer metal mold and the interior metal mold that will cover sand is assembled on the bottom board that running gate system is installed, buckles the top box that is provided with rising head, and is tightened to the inside and outside metal type sand-covering die cavity of an integral body;
(7) with the cast of manganese steel liquid, the insulation cooling promptly obtains broken wall or rolled mortar wall foundry goods.
Described inside and outside metal mold material can be made with carbon steel, casting pig or spheroidal graphite cast-iron;
Metal mold is identical with the thickness of the outer metal mold of nearly shape in the described nearly shape, and its thickness is different and different with the specifications and models of broken wall or rolled mortar wall, is 20-65mm;
Also different interior metal type sand-covering layer thickness is 20-80mm to the described thickness that covers layer of sand near and cover layer of sand closely outward and different with the specifications and models of broken wall or rolled mortar wall, and outer metal type sand-covering layer thickness is 15-75mm;
The described molding sand that covers layer of sand is to select refractoriness height, good in the up time internal mobility for use, has the post-curing performance and the self-hardening sand of fine collapsibility is arranged when high temperature is poured into a mould.
Advantage of the present invention is:
1, cone crushing wall or the rolled mortar wall foundry goods that adopts this method to produce is wall thickness closed ring spare uniformly, and foundry goods does not produce cracked, is great advantage of the present invention;
2, adopt inside and outside metal type sand-covering technique, can quicken the cooling velocity in potassium steel primary crystallization stage, the acquisition overcooling austenite is a matrix, and promptly cast(ing) surface obtains fine grain structure under the as cast condition;
3, because frock manufactures and designs standardization, realize moulding mechanization, mulling automation, job standardization, be convenient to realize the specialized production of cone crushing wall or rolled mortar wall series of products;
4, owing to enforcement moulding operation standardized work, cavity dimension precision height, any surface finish is for fusing, the cast of operation afterwards provides smart type;
5, the dimensional accuracy height of the broken wall of being produced, rolled mortar wall foundry goods, indeformable, surface roughness can reach Ra12.5-Ra25, reduce process cost and labour intensity such as subsequent handling such as peeling, polishing, soldering greatly;
6, adopt inside and outside metal type sand-covering technique, iron sand is smaller, covering layer of sand pours into a mould through high-temperature molten steel (in the pouring temperature range), it is defeated and dispersed fully to cover layer of sand, removes the resin molding on old sand grain surface effectively, most of old sand is reached or near the performance of fresh sand, significantly reduce the regenerating used load and simplified the regenerating used technical process, also reduce the investment of reclaim equiment, saved energy resource consumption, shortened the production cycle.The regenerating used reclamation rate reaches more than 85%, has realized the old sand zero-emission.
Product after testing, cast(ing) surface is a fine grain structure, surface roughness reaches Ra12.5-Ra25, use through the user case hardness HBS220～230, be the twice of the product of common sand casting of the same type service life.
Description of drawings
Fig. 1 is a process chart of the present invention;
Fig. 2 is of the present invention
Broken wall moulding frock assembling elevational schematic view;
Fig. 3 is of the present invention
Broken wall running castings assembling elevational schematic view;
Fig. 4 is of the present invention
Rolled mortar wall moulding frock assembling elevational schematic view;
Fig. 5 is of the present invention
Rolled mortar wall running castings assembling elevational schematic view;
Fig. 6 is that the present invention produces
Broken wall foundry goods elevational schematic view;
Fig. 7 is that the present invention produces
Rolled mortar wall foundry goods elevational schematic view;
Fig. 8 is of the present invention
Broken wall moulding frock assembling elevational schematic view;
Fig. 9 is of the present invention
Broken wall running castings assembling elevational schematic view;
Figure 10 is of the present invention
Rolled mortar wall moulding frock assembling elevational schematic view;
Figure 11 is of the present invention
Rolled mortar wall running castings assembling elevational schematic view;
Figure 12 is that the present invention produces
Broken wall foundry goods elevational schematic view;
Figure 13 is that the present invention produces
Rolled mortar wall foundry goods elevational schematic view.
Among the figure: 1. metal type sand-covering layer 5. outer metal type sand-covering layer 6. mold(ing) board 7. bottom boards 8. top boxs 9. die cavity in the outer metal mold 3. metal natural patterns 4. of metal mold 2. nearly shapes in the near shape
The specific embodiment
Broken wall, the rolled mortar wall that the present invention adopts inside and outside metal type sand-covering casting method to produce is mantle and the mutual coupling of fixed awl, one pair of wear resistance castings of Shi Yonging simultaneously in the gyratory crusher.Broken wall, its casting technique of rolled mortar wall of different size model are basic identical, select to cover sand layer thickness and to cover sand layer thickness outward in suitable according to metal mold Quench ability influence factor and foundry goods shrinkage factor inside and outside broken wall, the rolled mortar wall foundry goods, can produce broken wall, the rolled mortar wall of different size model.
The invention will be further described below in conjunction with drawings and Examples, but should be understood that following embodiment only is used for the present invention is illustrated, and be not in order to limit protection scope of the present invention.
Consult Fig. 1,2,3,6, its casting method step is as follows:
1, moulds of industrial equipment manufacture and design:
(1) manufactures and designs
Metal mold 1 in the nearly shape of broken wall, material is selected carbon steel for use, and the thickness of metal mold is 20mm in the nearly shape;
(2) make metal type sand-covering layer 4 in the nearly shape, thickness is 20mm;
(3) manufacture and design
The outer metal mold 2 of the nearly shape of broken wall, used material is identical with metal mold 1 in the nearly shape with thickness;
(4) make outer metal type sand-covering layer 5, thickness is 15mm;
(5) manufacture and design
Broken wall metal natural pattern 3, foundry goods shrinkage factor 2.2%, the natural pattern material is HT200, through machining, smooth surface;
(6) manufacture and design
Broken wall mold(ing) board 6, bottom board 7 and top box 8, material is a carbon steel;
Above-mentioned (1)～(6) are
Broken a whole set of Standard Module frock of wall;
2, moulding:
(1) metal mold 1, metal natural pattern 3, the outer metal mold 2 of nearly shape in the nearly shape of broken wall are assemblied on the mold(ing) board 6;
(2) add the molding sand consolidation and obtain inside and outside metal type sand-covering layer 4,5, molding sand mixes the resin self-setting sand that makes automatically by flow mixer and supplies with;
(3) cover layer of sand sclerosis and molding, when the molding sand sclerosis reaches the compression strength certain value, just can molding, the not danger that can damage or occur being out of shape;
(4) inside and outside metal type sand-covering laminar surface brushing alcohol-base paint is also in time lighted surface drying;
3, casting mold assembling:
4, cast:
Molten steel is poured into a mould smart type through refining with smart molten steel, and pouring temperature is controlled in the suitable temperature range, and the operating principle of cast is: fast, steadily, totally;
5, peeling:
Cast finishes, and foundry goods must be incubated cooling 40～60 hours in casting mold, and the peeling of unpacking then promptly obtains broken wall foundry goods.
Consult Fig. 8,9,12, the thickness of metal mold 1 is 65mm in the nearly shape, and the thickness of the outer metal mold 2 of nearly shape is 65mm, and interior metal type sand-covering layer 4 thickness are 80mm, and outer metal type sand-covering layer 5 thickness are 75mm, and metal natural pattern 3 is
Foundry goods shrinkage factor 2.8%.All the other are with embodiment 1.
Consult Fig. 4,5,7, its casting method step is as follows:
1, moulds of industrial equipment manufacture and design:
(1) manufactures and designs
Metal mold 1 in the nearly shape of rolled mortar wall, metal mold thickness is 20mm, and material is selected carbon steel for use, and interior metal type sand-covering layer 4 thickness are 20mm;
(2) manufacture and design
The outer metal mold 2 of the nearly shape of rolled mortar wall, metal mold thickness is identical with metal mold 1 in the nearly shape with material, and outer metal type sand-covering layer 5 thickness are 15mm;
(3) manufacture and design
The metal natural pattern 3 of rolled mortar wall, foundry goods shrinkage factor 2.2%, the natural pattern material is HT200, through machining, smooth surface;
(4) manufacture and design
Rolled mortar wall mold(ing) board 6, bottom board 7 and top box 8, material are carbon steel;
2, moulding:
(1) metal mold 1 in metal mold 2, metal natural pattern 3, the nearly shape outside the nearly shape of rolled mortar wall is assemblied on the mold(ing) board 6;
(2) add the inside and outside metal type sand-covering layer 4,5 of molding sand consolidation, molding sand mixes the resin self-setting sand that makes automatically by flow mixer and supplies with;
(3) cover layer of sand sclerosis and molding, when the molding sand sclerosis reaches the compression strength certain value, just can molding;
(4) inside and outside metal type sand-covering laminar surface brushing alcohol-base paint is also in time lighted surface drying;
3, casting mold assembling:
4, cast:
Molten steel is poured into a mould smart type through refining with smart molten steel, and pouring temperature is controlled in the suitable temperature range, and the operating principle of cast is: fast, steadily, totally;
5, peeling:
Cast finishes, and foundry goods must be incubated the cooling regular hour in casting mold, and the peeling of unpacking then promptly obtains the rolled mortar wall foundry goods.
Consult Figure 10,11,13, the thickness of metal mold 1 is 65mm in the nearly shape, and the thickness of the outer metal mold 2 of nearly shape is 65mm, and the thickness of interior metal type sand-covering layer 4 is 80mm, and outer metal type sand-covering layer 5 thickness are 75mm, and rolled mortar wall metal natural pattern 3 is
Foundry goods shrinkage factor 2.8%.All the other are with embodiment 3.
Among above-mentioned 4 embodiment, the material of described inside and outside metal mold also can be casting pig or spheroidal graphite cast-iron.Broken wall of producing or rolled mortar wall after testing, cast(ing) surface obtains fine grain structure, the dimensional accuracy height, indeformable, surface roughness reaches Ra12.5-Ra25, case hardness HBS220-230.
Claims (6)
1. the method for inside and outside broken wall of metal type sand-covering casting gyratory crusher manganese steel or rolled mortar wall, it is characterized in that: casting method comprises the steps:
(1) makes crusher in crushing wall or rolled mortar wall metal natural pattern, according to the material and the design feature of foundry goods, select the foundry goods shrinkage factor, and natural pattern is carried out machined, make smooth surface;
(2), manufacture and design the interior metal mold of nearly shape and the outer metal mold of nearly shape of corresponding wall thickness respectively according to the full pattern shape of cone crushing wall or the different size specification models of rolled mortar wall;
(3) outer metal mold, natural pattern and interior metal mold are assemblied on the mold(ing) board, reserve die cavity;
(4) it is real to add sand rammer in the die cavity between the metal mold outside metal mold, the nearly shape in metal natural pattern and nearly shape, and sclerosis;
(5) molding obtains even, ganoid outer metal type sand-covering layer of consolidation and interior metal type sand-covering layer, interior metal type sand-covering layer and outside the external coating alcohol-base paint of metal type sand-covering layer, and light surface drying;
(6) outer metal mold and the interior metal mold that will cover sand is assembled on the bottom board that running gate system is installed, buckles the top box that is provided with rising head, and is tightened to the inside and outside metal type sand-covering die cavity of an integral body;
(7) with the cast of manganese steel liquid, the insulation cooling promptly obtains broken wall or rolled mortar wall foundry goods.
2. method according to claim 1 is characterized in that: the material of described inside and outside metal mold is identical, is made by carbon steel, casting pig or spheroidal graphite cast-iron.
3. method according to claim 1 is characterized in that: the thickness of the inside and outside metal mold of described nearly shape is identical.
4. according to claim 1 or 3 described methods, it is characterized in that: the inside and outside metal mold thickness of described nearly shape is not all 20-65mm according to broken wall or rolled mortar wall specification.
5. method according to claim 1 is characterized in that: the metal type sand-covering layer thickness is 20-80mm in described, and outer metal type sand-covering layer thickness is 15-75mm.
6. method according to claim 1 is characterized in that: metal type sand-covering layer and outer metal type sand-covering layer are self-hardening sand in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101548994A CN101985158B (en) | 2010-04-22 | 2010-04-22 | Method for casting manganese steel broken wall or mortar-rolling wall of cone crusher by internal and external metal molds sand-lining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101548994A CN101985158B (en) | 2010-04-22 | 2010-04-22 | Method for casting manganese steel broken wall or mortar-rolling wall of cone crusher by internal and external metal molds sand-lining |
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| CN101985158A CN101985158A (en) | 2011-03-16 |
| CN101985158B true CN101985158B (en) | 2011-11-30 |
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| CN102873279B (en) * | 2012-09-29 | 2015-06-10 | 西峡县众德汽车部件有限公司 | Method for producing heat-resistant steel automobile exhaust pipes by iron mold sand lining process |
| CN107442747B (en) * | 2017-09-20 | 2023-07-28 | 衡阳金扬冶金矿山设备有限公司 | Casting method and casting die of movable cone lining plate or fixed cone lining plate of large cone crusher |
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Address after: 542600 National Highway 323 on the north side of North Ring Road, Zhongshan County, Hezhou City, Guangxi Zhuang Autonomous Region (north side of Chaodongzhai, Zhongshan Town) Patentee after: Guangxi the Great Wall machinery Limited by Share Ltd Address before: 546200 North of Chaodongzhai, Zhongshan Town, Zhongshan County, Guangxi Zhuang Autonomous Region Patentee before: Guangxi Great Wall Mining Machinery Equipment Manufacturing Co.,Ltd. |