CN103769264A - Anti-wear movable sleeve of super wear-resistant sand-making roller compaction opening of conic sand making machine and forming method - Google Patents
Anti-wear movable sleeve of super wear-resistant sand-making roller compaction opening of conic sand making machine and forming method Download PDFInfo
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- CN103769264A CN103769264A CN201310501462.7A CN201310501462A CN103769264A CN 103769264 A CN103769264 A CN 103769264A CN 201310501462 A CN201310501462 A CN 201310501462A CN 103769264 A CN103769264 A CN 103769264A
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Abstract
The invention relates to an anti-wear movable sleeve of a super wear-resistant sand-making roller compaction opening of a conic sand making machine and a forming method, and adopts a technical scheme that each sand-making roller compaction opening in the conic sand making machine is formed by a high-chromium iron anti-wear movable sleeve sand-making roller compaction wall and a high-chromium iron anti-wear fixed sleeve sand-making roller compaction wall, and the hardness of the high-chromium iron anti-wear movable sleeve sand-making roller compaction wall is higher than that of the high-chromium iron at the lower part of the edge of the sand-making roller compaction opening. The anti-wear movable sleeve of the super wear-resistant sand-making roller compaction opening of the conic sand making machine and the forming method have the advantages as follows: firstly, the defects that the service lives of each entire anti-wear movable sleeve and each entire anti-wear fixed sleeve are reduced greatly, and the sand making cost is high, which are caused by that since the hardness of each sand making opening formed by one anti-wear movable sleeve and one anti-wear fixed sleeve in the existing conic sand making machine is equal to that of the corresponding anti-wear movable sleeve and the corresponding anti-wear fixed sleeve, the sand making opening is worn into a groove in advance in the sand making process, are overcome radically; secondly, as each anti-wear movable sleeve and each anti-wear fixed sleeve are casted by adopting high-frequency vibration, gas and impurities in the liquid metal are enabled to be effectively discharged out, and a metallographic structure of the high-chromium iron is also enabled to be more reasonable in distribution, and higher in density.
Description
Technical field
The present invention relates to a kind of rich chromium cast iron anti-wear movable sleeve sand processed existing in circular cone sand making machine that can fundamentally solve rolls wall and rich chromium cast iron anti-wear fixed sleeve sand processed and rolls sand mouth processed (Longkou) that wall forms in sand process processed, because sandstone causes Longkou wall to be worn into groove by sandstone to the wearing and tearing of Longkou wall, and then cause whole rich chromium cast iron anti-wear movable sleeve to shorten service life, the super wear-resisting conical sand making machine sand processed that use cost is high rolls mouthful anti-wear movable sleeve and forming method, belongs to circular cone sand making machine component assembly and manufactures field.
Background technology
1, CN102352431A, title " the accurate differential temperature heat treatment of large-scale high-chromium iron-cast roller ", use high-temperature coal steam stove to carry out accurate differential temperature heat treatment to large-scale high-chromium iron-cast roller, comprise the following steps, A. use Double-layer pillow iron roll stand frame to be located on the chassis of high-temperature coal steam stove, the lower roll surface of roll is apart from trolley surface 800～900mm; Centre position at the upper and lower roll surface of roll barrel has respectively press-fited the armoured thermocouple that thermometric is used; Chassis is pushed in high-temperature coal steam stove, close fire door; B. first stage preheating: the holding temperature of first stage preheating is 590～650 ℃, all burner breaker rolls of opening high-temperature coal steam stove heat, and the flame of controlling burner ejection is little fire, and making programming rate is 5～30 ℃/h; In the time that the temperature of the armoured thermocouple of the upper and lower roll surface of the body of roll all reaches 590～650 ℃, insulation 1h; C. second stage preheating: the holding temperature of second stage preheating is 690～780 ℃, the flame of controlling burner ejection is little fire, making programming rate is 5～30 ℃/h; In the time that the temperature of the armoured thermocouple of the upper and lower roll surface of the body of roll all reaches 690～780 ℃, insulation 1h; D., after the heating D1. second stage of quenching preheating finishes, make all burners of high-temperature coal steam stove all reach flux peak big fire breaker roll and heat; D2. in the time that the temperature of roll surface on the body of roll reaches Ac1+30～60 ℃, except 1 burner retaining because preventing from leaking in coal gas burning is always to close all burners little fire, make in high-temperature coal steam stove and the heat on roll top to the bottom conduction of roll; In the time that the temperature of roll surface on the body of roll is reduced to Ac1, again opens all burners big fire breaker roll and heat; So repeatedly, until on the temperature of body of roll lower roll surface and the body of roll temperature of roll surface can reach within the scope of Ac1+30～60 ℃ simultaneously; D3. continue to open all burners big fire breaker roll and heat, make programming rate reach 300-500 ℃/h; In the time of the hardening heat of the Temperature Setting of roll surface on the body of roll, 1 burner leaking in control prevents coal gas is little flame, closes other all burners, make in high-temperature coal steam stove and the heat on roll top to the bottom conduction of roll; In the time that the temperature of roll surface on the body of roll is reduced to lower than hardening heat, again opens all burners big fire breaker roll and heat; So repeatedly, until on the temperature of body of roll lower roll surface and the body of roll temperature of roll surface can reach within the scope of the hardening heat of setting simultaneously; That is D4. interrupted heats with big fire breaker roll, the temperature of roll surface on the temperature of body of roll lower roll surface and the body of roll is remained within the scope of the hardening heat of setting, and the difference of the temperature of roll surface is less than 5 ℃ on the temperature of body of roll lower roll surface and the body of roll, closes all burners and stop breaker roll heating; E. cooling roll is hung out from high-temperature coal steam stove, carry out cooling according to conventional process for cooling.
2, CN102899469A, title " heat treatment method of high-chromium wear-resistant white cast-iron Cr28 ", comprises the following steps: quench (1): described high-chromium wear-resistant white cast-iron Cr28 is heated to 1000-1050 ℃, and heating and thermal insulation 1.5-3h, then air cooling is to room temperature; (2) high tempering: the high-chromium wear-resistant white cast-iron Cr28 after quenching in step (1) is heated to 710-730 ℃, tempering insulation time 1.5-2h, air cooling is to room temperature; (3) secondary quenching: step (2) high-chromium wear-resistant white cast-iron after treatment Cr28 is heated to 1000-1050 ℃, heating and thermal insulation 1.5-3h, then air cooling is to room temperature; (4) lonneal: the high-chromium wear-resistant white cast-iron Cr28 after secondary quenching in step (3) is heated to 450-500 ℃, tempering insulation 1.5-2h, air cooling is to room temperature; (5) secondary lonneal: the lonneal process of repeating step (4).
Its weak point that above-mentioned background technology exists: the one, be not suitable for the heat treatment of anti-wear movable sleeve and anti-wear fixed sleeve in circular cone sand making machine; The 2nd, the coupling of the technical parameter of Technology for Heating Processing, cannot reach effective raising of points hardness.
3, the sand mouth processed (Longkou) that the anti-wear movable sleeve (crushing wall) in existing circular cone sand making machine and anti-wear fixed sleeve (rolled mortar wall) form, because the hardness of formation anti-wear movable sleeve wall and anti-wear fixed sleeve wall is all identical from top to bottom, therefore cause into sand mouth wall processed (Long Koubi) and wear and tear in advance, form groove (seeing accompanying drawing 5) in sand processed (stone roller sand) process, and then causing whole anti-wear movable sleeve significantly to shorten service life, sand cost processed is high.
Summary of the invention
Purpose of design: avoid the weak point in background technology, designing a kind of rich chromium cast iron anti-wear movable sleeve sand processed existing in circular cone sand making machine that can fundamentally solve rolls wall and rich chromium cast iron anti-wear fixed sleeve sand processed and rolls sand mouth processed (Longkou) that wall forms in sand process processed, because sandstone causes Longkou wall to be worn into groove by sandstone to the wearing and tearing of Longkou wall, and then causing the shortening in service life of whole rich chromium cast iron anti-wear movable sleeve, the super wear-resisting conical sand making machine sand processed that use cost is high rolls mouthful anti-wear movable sleeve and forming method.
Design: in order to realize above-mentioned purpose of design, the present invention is in structural design:
1, in circular cone sand making machine, sand processed rolls mouthful (Longkou) wall hardness respectively higher than the design at other position, is one of technical characterictic of the present invention.The object of doing is like this: due to sand mouth wall processed (Longkou) wall in existing circular cone sand making machine, the sand mouth wall processed (Long Koubi) being formed by anti-wear movable sleeve (crushing wall) and anti-wear fixed sleeve (rolled mortar wall), in structural design, anti-wear movable sleeve wall is consistent with the hardness of anti-wear fixed sleeve wall, but the width that rolls the Longkou periphery (anti-wear movable sleeve wall periphery relative to anti-wear fixed sleeve wall) of the stressed maximum of sand processed when sand processed is only 5-15 centimetre wide, its periphery bottom, Longkou rich chromium cast iron wall is stressed relatively little, therefore cause Longkou periphery quick abrasion in sand process processed, inevitably form arcs of recesses groove, and then cause whole anti-wear movable sleeve and anti-wear fixed sleeve significantly to shorten service life, frequent replacing, the cost of made sand is high.The application improves the hardness of the Longkou periphery of stressed maximum in circular cone sand making machine, its wearability is increased substantially, substantially exceed the wearability of bottom, Longkou rich chromium cast iron, so, not only reduce widely the wear extent of Longkou periphery, and the rate of wear and the rate of wear of bottom, Longkou rich chromium cast iron that make the Longkou periphery of width 5-15 centimetre can keep relative consistent, both improved the service life of conical sand making mouth, avoid the frequent replacing of conical sand making mouth assembly, greatly reduced again sand cost processed.
2, sand processed rolls mouthful (Longkou) periphery and adopts design air-cooled, that Kou Bian bottom, Longkou adopts insulation material insulation Slow cooling, is two of technical characterictic of the present invention.The object of doing is like this: the application finds through a large amount of tests repeatedly: it is in the time of 1010-1030 ℃, to complete Quenching Treatment that the hardening heat of the Longkou wall of the circular cone sand making machine being made up of anti-wear movable sleeve wall and anti-wear fixed sleeve wall is got warm scope, and the temperature range of temper softening is at 930-950 ℃, hardening heat is since 1010 ℃, along with hardening heat raises, hardness raises, in the time that hardening heat exceedes 1030 ℃, hardness declines.This is because of rising and insulation along with heating-up temperature, carbon in austenite and diffusion of alloy elements ability improve gradually, under as cast condition, in oversaturated austenite, separate out primary carbide, the content of carbon in austenite is reduced, thereby improve Ms point, when quenching, make austenite change martensite into, thereby hardness improve.When hardening heat is during lower than 1010 ℃, primary carbide is separated out more, and carbon containing and chrome content in balance austenite are lower, and in the time quenching into martensite, in its martensite, carbon and alloying element content are lower, make martensite softer, and hardness is lower; When hardening heat is during higher than 1030 ℃, carbon when austenite reaches balance and chromium content are higher, and austenitic stability is increased, but still have part austenite residual when air quenching, thereby make lower hardness.Therefore only have in the time that hardening heat is moderate, existing a certain amount of carbon and alloying element in balance austenite, can all quench into again M and just can obtain higher hardness number when quenching.Therefore the application finds in test:
(1) it is in the time of 1010-1030 ℃, to complete Quenching Treatment that the hardening heat of the Longkou wall of the circular cone sand making machine that anti-wear movable sleeve wall and anti-wear fixed sleeve wall form is got warm scope, and the temperature range of temper softening is in the time of 930-950 ℃, while adopting normal temperature air-blast quenching, roll wall and rich chromium cast iron anti-wear fixed sleeve sand processed the cool time of the coated rich chromium cast iron of insulation material to roll the complete cooled hardness of wall be 60-63.6HRC 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed, and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC;
(2) it is in the time of 1010-1030 ℃, to complete Quenching Treatment that the hardening heat of the Longkou wall of the circular cone sand making machine that anti-wear movable sleeve wall and anti-wear fixed sleeve wall form is got warm scope, and the temperature range of temper softening is in the time of 930-950 ℃, while adopting air-cooled temperature to be 0-10 ℃ of air-blast quenching, roll wall and rich chromium cast iron anti-wear fixed sleeve sand processed the cool time of the coated rich chromium cast iron of insulation material to roll the complete cooled hardness of wall be 64-65HRC 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed, and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
(3) it is in the time of 1010-1030 ℃, to complete Quenching Treatment that the hardening heat of the Longkou wall of the circular cone sand making machine that anti-wear movable sleeve wall and anti-wear fixed sleeve wall form is got warm scope, and the temperature range of temper softening is in the time of 930-950 ℃, while adopting air-cooled temperature to be-1～-5 ℃ of air-blast quenching, roll wall and rich chromium cast iron anti-wear fixed sleeve sand processed the cool time of the coated rich chromium cast iron of insulation material to roll the complete cooled hardness of wall be 65.5-68HRC 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed, and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
3, rich chromium cast iron anti-wear movable sleeve sandbox or rich chromium cast iron anti-wear fixed sleeve sandbox are set on dither platform, when cast rich chromium cast iron, dither platform remains the design of dither state, is three of technical characterictic of the present invention.The object of doing is like this: the sandbox of cast rich chromium cast iron is hung onto to the situation at dither on dither platform and pour into a mould below the vibration of rich chromium cast iron limit, promote grain refinement, intergranular degree reduces, dense structure, hardness improves, the wearability of foundry goods greatly improves, because under the effect of dither, the crystallization that cast outer surface (with casting mold contact position) generates, by elastic break-down, leave origin-location (disequilibrium) to the core motion of solidifying, and become nucleus, promote brilliant refinement, so not only can make the gas in liquid metals, impurity is discharged effectively, but also can make rich chromium cast iron metallographic structure distribute more reasonable, density is higher, wearability and anti-impact force are higher, secondly, under dither prerequisite, the rich chromium cast iron of cast limit, limit vibration is because metallographic structure distribution is more reasonable, density is higher, therefore in the time that employing is air-cooled or cross cold wind processing, the hardness of the rich chromium cast iron of its final molding can be up to 68HRC, and in actual destructive testing, the wearability of high-chromium casting after moulding, nearly 5 times are improved in impact resistance and service life, obtain beyond thought technique effect, so the application adopts dither cast high-chromium cast-iron conical sand making machine anti-wear movable sleeve and anti-wear fixed sleeve, not only realize the raising of the carbon in austenite and diffusion of alloy elements ability in rich chromium cast iron casting process, and in oversaturated austenite, separate out primary carbide under as cast condition, the content of carbon in austenite is reduced, reach and improve Ms point, while making to quench, make austenite can all change martensite into, thereby make rich chromium cast iron anti-wear movable sleeve sand processed roll hardness that wall and rich chromium cast iron anti-wear fixed sleeve sand processed rolls the periphery Longkou of wall to have obtained the raising of essence, and without secondary quenching and tempering, greatly simplify Technology for Heating Processing.
4, the design of annular spray solar or lunar halo, is four of technical characterictic of the present invention.The object of doing is like this: it not only can improve speed and the effect of quenching effectively, and make the uniformity of hardness of the rich chromium cast iron Longkou periphery of width 5-15 centimetre obtain guarantee, guarantee that Longkou periphery grinds the uniformity of sand abrasion amount, thereby guaranteed the uniformity of Machine-made Sand granule size.
Technical scheme 1: a kind of super wear-resisting conical sand making machine sand processed rolls a mouthful anti-wear movable sleeve, sand processed in circular cone sand making machine rolls mouthful and to roll wall and rich chromium cast iron anti-wear fixed sleeve sand processed by rich chromium cast iron anti-wear movable sleeve sand processed and roll wall and form, and the hardness that rich chromium cast iron anti-wear movable sleeve sand processed rolls wall rolls the hardness of bottom, Kou Kou limit rich chromium cast iron higher than sand processed.
Technical scheme 2: a kind of super wear-resisting conical sand making machine sand processed rolls a mouthful anti-wear movable sleeve forming method, rich chromium cast iron anti-wear movable sleeve sandbox is set on dither platform, when cast rich chromium cast iron, dither platform remains dither state, the rich chromium cast iron of melting pours into rich chromium cast iron anti-wear movable sleeve sandbox, when after rich chromium cast iron anti-wear movable sleeve casting, dither platform stops vibration, the demoulding of rich chromium cast iron anti-wear movable sleeve, polishing, cut rising head, then adopt the mode of ladder heating and thermal insulation to be heated to 930-950 ℃ rich chromium cast iron anti-wear movable sleeve and carry out soft annealing processing, and the rich chromium cast iron anti-wear movable sleeve after soft annealing and rich chromium cast iron anti-wear fixed sleeve are carried out to roughing, when rich chromium cast iron anti-wear movable sleeve after roughing adopts the mode of ladder heating and thermal insulation to be heated to 1010-1030 ℃ equally, the rich chromium cast iron wall that adopts insulation material that sand processed rich chromium cast iron anti-wear movable sleeve is rolled to wall bottom is coated, or roll wall except rich chromium cast iron anti-wear movable sleeve sand processed, remaining part all adopts insulation material coated, then annular being sprayed to solar or lunar halo is equidistantly distributed in rich chromium cast iron anti-wear movable sleeve sand processed and rolls wall surrounding, start air compressor, air compressor sprays multiple air nozzles on solar or lunar halo wall by cold wind by annular and is sprayed onto rich chromium cast iron anti-wear movable sleeve sand processed to roll the enterprising sector-style of wall cold, until that rich chromium cast iron anti-wear movable sleeve sand processed rolls wall is cooling.
The present invention is compared with background technology, the one, fundamentally solve sand mouth processed (Longkou) hardness that the anti-wear movable sleeve in existing circular cone sand making machine forms with anti-wear fixed sleeve identical with anti-wear movable sleeve and anti-wear fixed sleeve and cause Longkou in sand process processed, to wear and tear in advance, form groove, and then cause whole anti-wear movable sleeve and anti-wear fixed sleeve significantly to shorten service life, the high drawback of sand cost processed; The 2nd, adopt dither casting anti-wear movable sleeve and anti-wear fixed sleeve, can not only make gas, impurity in liquid metals effectively discharge, but also can make rich chromium cast iron metallographic structure distribute more reasonable, density is higher, wearability and anti-impact force are higher, without secondary quenching and tempering, greatly simplified Technology for Heating Processing simultaneously; The 3rd, the selection of the hardening heat tempering range of the Longkou wall of the casting of rich chromium cast iron dither and circular cone sand making machine, makes carbon and alloying element in balance austenite, in the time quenching, all quenches into M, obtains higher hardness number.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of anti-wear movable sleeve.
Fig. 2 is the schematic diagram of anti-wear fixed sleeve.
Fig. 3 is the schematic diagram that super wear-resisting conical sand making machine sand processed rolls mouthful anti-wear movable sleeve.
Fig. 4 is that Fig. 1-Fig. 3 is assemblied in the schematic diagram after circular cone sand making machine, wherein: 1 upper casing; 2 adjust swivel nut; 3 main shafts.
Fig. 5 is the schematic diagram of background technology.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-4.A kind of super wear-resisting conical sand making machine sand processed rolls a mouthful anti-wear movable sleeve, sand processed in circular cone sand making machine rolls mouthfuls 6 and rolls wall 501 and rich chromium cast iron anti-wear fixed sleeve sand processed by rich chromium cast iron anti-wear movable sleeve sand processed and roll wall 401 and form, and the hardness that rich chromium cast iron anti-wear movable sleeve sand processed rolls wall 501 rolls a hardness for mouth bottom, 6 mouthfuls of limits rich chromium cast iron higher than sand processed.It is air-cooled moulding that its rich chromium cast iron anti-wear movable sleeve sand processed rolls wall 501 hardness, and the best was cold wind cold forming, crosses cold the referring to of cold wind and will after cooling normal temperature wind rear required temperature, discharge.Rich chromium cast iron anti-wear movable sleeve sand processed rolls bottom, 501 mouthfuls of limits of wall rich chromium cast iron and adopts insulation to delay cooling method moulding.
Embodiment 2: on the basis of embodiment 1, in rich chromium cast iron anti-wear movable sleeve 5,, except rich chromium cast iron anti-wear movable sleeve sand processed rolls wall 501, remaining rich chromium cast iron anti-wear movable sleeve 5 wall and rich chromium cast iron anti-wear fixed sleeve 4 walls all adopt insulation to delay cooling method moulding.
Embodiment 3: on the basis of embodiment 1 or 2, a kind of super wear-resisting conical sand making machine sand processed rolls a mouthful anti-wear movable sleeve forming method, rich chromium cast iron anti-wear movable sleeve 5 sandboxes are set on dither platform, when cast rich chromium cast iron, dither platform remains dither state, the rich chromium cast iron of melting pours into rich chromium cast iron anti-wear movable sleeve 5 sandboxes, when after rich chromium cast iron anti-wear movable sleeve 5 castings, dither platform stops vibration, 5 demouldings of rich chromium cast iron anti-wear movable sleeve, polishing, cut rising head, then rich chromium cast iron anti-wear movable sleeve 5 is adopted the mode of ladder heating and thermal insulation to be heated to 930-950 ℃ and carry out soft annealing processing, and the rich chromium cast iron anti-wear movable sleeve 5 after soft annealing is carried out to roughing, when the mode of the same employing ladder of rich chromium cast iron anti-wear movable sleeve 5 heating and thermal insulation after roughing is heated to 1010-1030 ℃, the rich chromium cast iron wall that adopts insulation material that sand processed rich chromium cast iron anti-wear movable sleeve is rolled to wall 501 bottoms is coated, or roll wall 501 except rich chromium cast iron anti-wear movable sleeve sand processed, remaining part all adopts insulation material coated, then annular being sprayed to solar or lunar halo is equidistantly distributed in rich chromium cast iron anti-wear movable sleeve sand processed and rolls wall 501 surroundings, start air compressor, air compressor sprays multiple air nozzles on solar or lunar halo wall by cold wind by annular and is sprayed onto rich chromium cast iron anti-wear movable sleeve sand processed to roll the enterprising sector-style of wall 501 cold, until that rich chromium cast iron anti-wear movable sleeve sand processed rolls wall 501 is cooling.
Rich chromium cast iron anti-wear movable sleeve 5 adopts ladder heating and thermal insulation to refer in (1) soft annealing: when furnace chamber preheat temperature is less than 200 ℃, rich chromium cast iron anti-wear movable sleeve 5 is put into stove to be heated, while rising to 650 ℃ with 30 ℃ of firing rates per hour, be incubated after 2 hours, then rise to 930-950 ℃ with 30 ℃ of firing rates per hour and complete soft annealing processing; (2) quench: when furnace chamber preheat temperature is less than 200 ℃, rich chromium cast iron anti-wear movable sleeve 5 is put into stove to be heated, while rising to 650 ℃ with 30 ℃ of firing rates per hour, be incubated after 2 hours, then complete Quenching Treatment while rising to 1010-1030 ℃ with 30 ℃ of firing rates per hour.
Example 1: when the air-cooled temperature that rolls wall 501 cool time of the coated rich chromium cast iron of insulation material 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed is normal temperature, it is 60-63.6HRC that rich chromium cast iron anti-wear movable sleeve sand processed rolls the complete cooled hardness of wall 501, and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
Example 2: when the air-cooled temperature that rolls wall 501 cool time of the coated rich chromium cast iron of insulation material 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed is 0-10 ℃, it is 64-65HRC that rich chromium cast iron anti-wear movable sleeve sand processed rolls the complete cooled hardness of wall 501, and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
Example 3: when the air-cooled temperature that rolls wall 501 cool time of the coated rich chromium cast iron of insulation material 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed is-1～-5 ℃, it is 65.5-68HRC that rich chromium cast iron anti-wear movable sleeve sand processed rolls the complete cooled hardness of wall 501, and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
It is to be understood that: although above-described embodiment is with 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 restriction to 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 within the scope of protection of the present invention.
Claims (9)
1. a super wear-resisting conical sand making machine sand processed rolls a mouthful anti-wear movable sleeve, sand processed in circular cone sand making machine rolls mouthful (6) and rolls wall (501) by rich chromium cast iron anti-wear movable sleeve sand processed and rich chromium cast iron anti-wear fixed sleeve sand processed rolls wall (401) formation, it is characterized in that: the hardness that rich chromium cast iron anti-wear fixed sleeve sand processed rolls wall (401) all rolls a hardness for mouth (6) mouth bottom, limit rich chromium cast iron higher than sand processed.
2. super wear-resisting conical sand making machine according to claim 1 sand processed rolls a mouthful anti-wear movable sleeve, it is characterized in that: it is air-cooled moulding that rich chromium cast iron anti-wear movable sleeve sand processed rolls wall (501) hardness, and the best was cold wind cold forming.
3. super wear-resisting conical sand making machine according to claim 1 sand processed rolls a mouthful anti-wear movable sleeve, it is characterized in that: rich chromium cast iron anti-wear movable sleeve sand processed rolls wall (501) mouthful bottom, a limit rich chromium cast iron and adopts insulation to delay cooling method moulding.
4. super wear-resisting conical sand making machine according to claim 1 sand processed rolls a mouthful anti-wear movable sleeve, it is characterized in that: in rich chromium cast iron anti-wear movable sleeve (5), except rich chromium cast iron anti-wear movable sleeve sand processed rolls wall (501), remaining rich chromium cast iron anti-wear movable sleeve (5) wall adopts insulation to delay cooling method moulding.
5. a super wear-resisting conical sand making machine sand processed rolls a mouthful anti-wear movable sleeve forming method, it is characterized in that: rich chromium cast iron anti-wear movable sleeve (5) sandbox is set on dither platform, when cast, dither platform remains dither state, the rich chromium cast iron of melting pours into rich chromium cast iron anti-wear movable sleeve (4) sandbox, when after rich chromium cast iron anti-wear movable sleeve (5) casting, dither platform stops vibration, rich chromium cast iron anti-wear movable sleeve (5) demoulding, polishing, cut rising head, then adopt the mode of ladder heating and thermal insulation to be heated to 930-950 ℃ rich chromium cast iron anti-wear movable sleeve (5) and carry out soft annealing processing, and the rich chromium cast iron anti-wear movable sleeve (5) after soft annealing is carried out to roughing, when rich chromium cast iron anti-wear movable sleeve (5) after roughing adopts the mode of ladder heating and thermal insulation to be heated to 1010-1030 ℃ equally, the rich chromium cast iron wall that adopts insulation material sand processed rich chromium cast iron anti-wear movable sleeve to be rolled to the rich chromium cast iron wall of wall (501) bottom is coated, or except rich chromium cast iron anti-wear movable sleeve sand processed rolls wall (501), remaining part all adopts insulation material coated, then annular being sprayed to solar or lunar halo is equidistantly distributed in rich chromium cast iron anti-wear movable sleeve sand processed and rolls wall (501) surrounding, start air compressor, air compressor sprays multiple air nozzles on solar or lunar halo wall by cold wind by annular and is sprayed onto rich chromium cast iron anti-wear movable sleeve sand processed to roll the enterprising sector-style of wall (501) cold, until that rich chromium cast iron anti-wear movable sleeve sand processed rolls wall (501) is cooling.
6. super wear-resisting conical sand making machine according to claim 5 sand processed rolls a mouthful anti-wear movable sleeve forming method, it is characterized in that: when the air-cooled temperature that rolls wall (501) cool time of the coated rich chromium cast iron of insulation material 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed is normal temperature, it is 60-63.6HRC that rich chromium cast iron anti-wear movable sleeve sand processed rolls the complete cooled hardness of wall (501), and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
7. super wear-resisting conical sand making machine according to claim 5 sand processed rolls a mouthful anti-wear movable sleeve forming method, it is characterized in that: when the air-cooled temperature that rolls wall (501) cool time of the coated rich chromium cast iron of insulation material 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed is 0-10 ℃, it is 64-65HRC that rich chromium cast iron anti-wear movable sleeve sand processed rolls the complete cooled hardness of wall (501), and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
8. super wear-resisting conical sand making machine according to claim 5 sand processed rolls a mouthful anti-wear movable sleeve forming method, it is characterized in that: when the air-cooled temperature that rolls wall (501) cool time of the coated rich chromium cast iron of insulation material 6-12 hour, rich chromium cast iron anti-wear movable sleeve sand processed is-1～-5 ℃, it is 65.5-68HRC that rich chromium cast iron anti-wear movable sleeve sand processed rolls the complete cooled hardness of wall (501), and the hardness of the coated rich chromium cast iron of insulation material is 56-58HRC.
9. super wear-resisting conical sand making machine according to claim 5 sand processed rolls a mouthful anti-wear movable sleeve forming method, it is characterized in that: rich chromium cast iron anti-wear movable sleeve (5) adopts ladder heating and thermal insulation to refer in (1) soft annealing: when furnace chamber preheat temperature is less than 200 ℃, rich chromium cast iron anti-wear movable sleeve (5) is put into stove heating, while rising to 650 ℃ with 30 ℃ of firing rates per hour, be incubated after 2 hours, then rise to 930-950 ℃ with 30 ℃ of firing rates per hour and complete soft annealing processing; (2) quench: when furnace chamber preheat temperature is less than 200 ℃, rich chromium cast iron anti-wear movable sleeve (5) is put into stove heating, while rising to 650 ℃ with 30 ℃ of firing rates per hour, be incubated after 2 hours, then complete Quenching Treatment while rising to 1010-1030 ℃ with 30 ℃ of firing rates per hour.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501462.7A CN103769264A (en) | 2013-10-23 | 2013-10-23 | Anti-wear movable sleeve of super wear-resistant sand-making roller compaction opening of conic sand making machine and forming method |
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| CN201310501462.7A CN103769264A (en) | 2013-10-23 | 2013-10-23 | Anti-wear movable sleeve of super wear-resistant sand-making roller compaction opening of conic sand making machine and forming method |
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| CN103769264A true CN103769264A (en) | 2014-05-07 |
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| CN (1) | CN103769264A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104801387A (en) * | 2015-04-03 | 2015-07-29 | 浙江双金机械集团股份有限公司 | Cone sand maker two-component crushing wall being smaller than 2000 mm in diameter and manufacturing method |
| CN104801377A (en) * | 2015-04-03 | 2015-07-29 | 浙江双金机械集团股份有限公司 | Cone crusher two-component rolling mortar wall being smaller than 2000 mm in diameter and manufacturing method |
| CN104801367A (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 |
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| CN101816963A (en) * | 2009-12-03 | 2010-09-01 | 浙江双金机械集团有限公司 | Movable sleeve bushing special for cone sand making machine |
| CN101816961A (en) * | 2009-12-03 | 2010-09-01 | 浙江双金机械集团有限公司 | Anti-wear movable sleeve special for cone sand making machine |
| CN102873307A (en) * | 2012-09-25 | 2013-01-16 | 马鞍山市晨光高耐磨科技发展有限公司 | Method for remelting roller surface of crush roller and casting abrasion-resistant alloy layer |
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| CN101816963A (en) * | 2009-12-03 | 2010-09-01 | 浙江双金机械集团有限公司 | Movable sleeve bushing special for cone sand making machine |
| CN101816961A (en) * | 2009-12-03 | 2010-09-01 | 浙江双金机械集团有限公司 | Anti-wear movable sleeve special for cone sand making machine |
| CN102873307A (en) * | 2012-09-25 | 2013-01-16 | 马鞍山市晨光高耐磨科技发展有限公司 | Method for remelting roller surface of crush roller and casting abrasion-resistant alloy layer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801387A (en) * | 2015-04-03 | 2015-07-29 | 浙江双金机械集团股份有限公司 | Cone sand maker two-component crushing wall being smaller than 2000 mm in diameter and manufacturing method |
| CN104801377A (en) * | 2015-04-03 | 2015-07-29 | 浙江双金机械集团股份有限公司 | Cone crusher two-component rolling mortar wall being smaller than 2000 mm in diameter and manufacturing method |
| CN104801367A (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 |
| CN104801367B (en) * | 2015-04-03 | 2019-01-25 | 浙江双金机械集团股份有限公司 | The breaking wall of spindle breaker and production method be made of potassium steel and high-carbon chromium steel |
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Application publication date: 20140507 |