CN201605308U - Manufacturing equipment for wear resistant alloy steel products - Google Patents
Manufacturing equipment for wear resistant alloy steel products Download PDFInfo
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- CN201605308U CN201605308U CN2009201779883U CN200920177988U CN201605308U CN 201605308 U CN201605308 U CN 201605308U CN 2009201779883 U CN2009201779883 U CN 2009201779883U CN 200920177988 U CN200920177988 U CN 200920177988U CN 201605308 U CN201605308 U CN 201605308U
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Abstract
Manufacturing equipment for wear resistant alloy steel products comprises smelting equipment and thermal treatment equipment. The smelting equipment is formed by a smelting surface, a temperature monitoring device, a discharge device and an upper control unit connected with the smelting furnace, the temperature monitoring device and the discharge device, the upper control unit controls the smelting furnace and the discharge device according to temperature signals so as to achieve set ingredients and percentages, and the thermal treatment equipment consists of an annealing furnace, a quenching furnace, a quenching groove and a tempering furnace, can also be connected with the upper control unit and realizes automation control. The manufacturing equipment is simple in processing equipment, low in cost and free of pollution, and further produced cast steel can be used for manufacturing engineering machinery contacting with frozen rock and frozen soil layers.
Description
Technical field
The utility model relates to a kind of producing apparatus of wear resistant alloy product made from steel.
Background technology
Wearing and tearing are many industrial sector ubiquities and become a major reason that causes equipment failure or material damage that it has also consumed a large amount of energy and material simultaneously.The various engineering excavation machines of being made by Alloy Cast Steel and shovel loader bucket tooth, various wear resistant conveying pipes road, various grinder hammerhead and jaw, various grip-pad, owing to be in working conditions such as high strength, atrocious weather, its wear pattern is more serious.
The present state of the art is: the hardness of general material and the performance index that toughness is mutual contradiction, and hardness high poor toughness then normally, toughness height then hardness is low.One class is to emphasize the high tenacity of material, and a class is to emphasize the resistance to abrasion of material.And can't reach an effectively unification, especially in the application that is used on the engineering machinery such as outdoor mining, excavation.The wear resistance of high mangaenese steel is with good conditionsi, and its yield strength is low, easily deformable; Low, interalloy wear resisting steel has better strength and toughness, and the wear resistance under low, the middle shock load is better than high mangaenese steel, but has hardening capacity and the low problem of hardenability, and wear resistance is relatively poor; Contain in the rich chromium cast iron tissue and surpass 20% high rigidity eutectic carbides, have excellent abrasive, have the yielding rimose deficiency of alloying element content height, production cost height and high melt; Ordinary white cast iron and low-alloy chilled cast iron carbide hardness are low, and carbide is continuous shape and distributes, and fragility is big, easily peel off in the use even ftracture.
Therefore need provide wear-resistant alloy cast steel of new generation, innovation and design by its component and content, obtaining a kind of obdurability height, hardening capacity and hardenability is well the development trend of high-abrasive material, guarantee the works fine in low temperature environment simultaneously, and the high-abrasive material that in the condition of multiplex (MUX) ore deposit, also can well use, to reduce galling, development and national economy there is crucial meaning.
People recognize that also the melting technology that a kind of new alloying constituent with wear-resistant alloy cast steel adapts will be the important manufacturing technology link that guarantees the alloying constituent of wear-resistant alloy cast steel and then guarantee its mechanical property.The thermal treatment process that simultaneously a kind of new alloying constituent with wear-resistant alloy cast steel adapts is not only the sport technique segment of making wear-resistant alloy cast steel, simultaneously, rational heat treatment technology also will have positive effect to the mechanical property of wear-resistant alloy cast steel, alloying constituent is used more effectively.Therefore, also need one can be maximum realization and optimize the producing apparatus that comprises melting and thermal treatment process of corresponding cast steel, simultaneously this manufacturing process also should be a kind of simple in structure, cost is low and pollution-free and be suitable for the large-scale production process of automatization.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of and the producing apparatus New-type wear-resistant alloy steel product.
The chemical ingredients of wherein said New-type wear-resistant alloy cast steel and mass percent thereof are: C:0.27-0.32; Mn:0.70-0.90; Si:0.90-1.30; Cr:1.40-1.80; Mo:0.10-0.20; Ni:0.10-0.20; Ti:0.02-0.03.
Its corresponding producing apparatus comprises: melting equipment part, Equipment for Heating Processing part and upper control unit.
1) melting equipment comprises:
Smelting furnace, place in the stove to monitor the device for monitoring temperature of temperature in the described smelting furnace, can in described smelting furnace, throw in the blanking device of material, in described smelting furnace, drop into the slag making device that described flux carries out slag making, alloying element in the stove is carried out the sampling analysis device of sampling analysis, in smelting furnace, add reductor to reduce the device for deoxidizing of the air content in the molten steel as far as possible;
2) Equipment for Heating Processing, wrapping it comprises: heat treatment system with described wear-resistant alloy cast steel is transported the haulage system that is connected between described heat treatment system, described heat treatment system has successively along described haulage system: annealing furnace, quenching furnance, the tempering stove that can set the Heating temperature and the residence time; Between described quenching furnance and described tempering stove, also have can set the cooling temperature and the residence time, be equipped with the quenching tank that heat-eliminating medium is a water-soluble quenching liquid, link to each other and the quenchant system of hardening liquid is provided for described quenching tank with described quenching tank, described annealing furnace, quenching furnance or tempering stove can have a plurality of heating zone, and described each heating zone can be provided with the device for monitoring temperature that is used for described heating zone is realized demonstration, record and the remote reporting of temperature;
3) upper control unit, it controls described blanking device according to the device for monitoring temperature in the described smelting furnace, according to the device for monitoring temperature in the described Equipment for Heating Processing, control the Heating temperature and the residence time in the described Equipment for Heating Processing, and the automatization systemic circulation form of quenchant system and special agitating function.
Simple through mechanism provided by the utility model, cost is low, polluting the little producing apparatus that is suitable for automatization can be effectively, high-quality obtains described wear-resistant alloy cast steel, its tensile strength: 1500-1800MPa, yield strength: 1200-1400MPa, unit elongation: δ 57-15%, v-notch impelling strength Akv25-40J, hardness: 48-55HRC.And be suitable in low temperature environment, as-20 ℃～0 ℃, and freeze the wear-resistant engineering machinery equipment that rock, frozen soil layer contact, adapt to requirement in the medium-term and long-term work of cold belt environment.
Description of drawings
Fig. 1 is total synoptic diagram of the utility model producing apparatus;
Fig. 2 is the synoptic diagram of melting equipment in the utility model producing apparatus; With
Fig. 3 is the synoptic diagram of Equipment for Heating Processing in the utility model producing apparatus.
Embodiment
The utility model provides a kind of and the producing apparatus New-type wear-resistant alloy steel product.
The chemical ingredients of its described cast steel and mass percent thereof are: C:0.27-0.32; Mn:0.70-0.90; Si:0.90-1.30; Cr:1.40-1.80; Mo:0.10-0.20; Ni:0.10-0.20; Ti:0.02-0.03.Wherein the major function that each alloy had is:
Carbon (C): carbon content is high more, and the intensity of steel and hardness value increase, and plasticity and toughness value reduce;
Silicon (Si): reinforced ferrite, improve tensile strength and yield strength, improve thermotolerance and solidity to corrosion, reduce toughness and plasticity;
Manganese (Mn): improve intensity, hardness and wear resistance;
Chromium (Cr): reduce the thermal conductivity of steel, can improve wear resistance;
Molybdenum (Mo): reinforced ferrite, improve high-temperature behavior, improve fragility;
Nickel (Ni): enlarging the austenitic area, is the effective element of austenitizing, improves intensity and does not significantly reduce plasticity, and good corrosion resistance is arranged;
Ferrotianium (Ti): can reinforced ferrite, deoxidation and crystal grain thinning.
The utility model also provide have production technique, mechanism is simple, cost is low, pollute little characteristics, the good producing apparatus of obdurability height, hardening capacity and hardenability of the wear-resistant alloy cast steel that it obtains.For the producing apparatus that achieves the above object comprises: melting equipment and Equipment for Heating Processing.
Preferably as shown in Figure 1: melting equipment A all links to each other with the upper control unit 6 with information reception, processing and executive capability by electric wire with Equipment for Heating Processing B.Receive the relevant temperature information that device for monitoring temperature sends among melting equipment A and the Equipment for Heating Processing B by upper control unit 6, and the relevant action of control said apparatus.Concrete example is melting equipment A and Equipment for Heating Processing B as shown in Figures 2 and 3:
Melting equipment A:
For obtaining above-mentioned wear-resistant alloy cast steel, it is one its corresponding that the utility model provides, and have the smelting device system that production technique is simple, cost is low, pollute little characteristics, as shown in Figure 2.It specifically comprises: smelting furnace A1, place in the stove to monitor the device for monitoring temperature A2 of temperature in the described smelting furnace, and can in described smelting furnace, throw in the blanking device A3 of material, and the upper control unit 6 that links to each other with said apparatus.
Simultaneously preferred, can also have and upper control unit slag making device that link to each other and that be provided with flux A4, with the controlled flux that in described smelting furnace A1, adds with the formation slag; The sampling analysis device A5 that links to each other with upper control unit transmits data results with the controlled sampling analysis that molten steel among the smelting furnace A1 is analyzed and to control unit; The device for deoxidizing A6 that links to each other with upper control unit in addition, with the controlled reductor that in smelting furnace A1, adds to reduce the air content in the molten steel as far as possible.
Smelting furnace A1 preferred embodiment is to adopt tart high frequency or medium-frequency induction furnace to carry out melting, and determines pre-loading amount according to the amount of capacity of stove A1.When melting, at first in stove A1, sprinkle one deck flux (about the about 10mm of thickness) by upper control unit 6 control slag making devices 4 on the bottom, feed again according to the amount of capacity of stove simultaneously, should pack into earlier and can send electrofusion behind the part small powder, fusing along with furnace charge, the furnace charge that should pack into successively and be unkitted, for preventing " bridge formation " (promptly blocking) phenomenon, should accomplish " tight down upward pine ", and in fusion process, should in time disclose material, so that the fusing of furnace charge, and in time sprinkle flux by upper control unit 6 control slag making device A4 and carry out slag making, the flux consumption is as the criterion to cover whole bath surface.
In the utility model preferred embodiment, described upper control unit 6 can be made following control to the temperature of smelting furnace A1 and the work of blanking device A3 according to the temperature signal of the device for monitoring temperature A2 transmission that is obtained:
When the melting molten steel is warming up to 1550-1560 ℃ in described device for monitoring temperature A2 monitors described smelting furnace A1, described blanking device A3 is addition element respectively: carbon, molybdenum-iron, ferrochrome, nickel, ferrotianium, it is stirred the back by flux slag making in the blanking device A3 covering, continue then to heat up;
When the melting molten steel was warming up to 1570-1580 ℃ in described device for monitoring temperature A2 monitors described smelting furnace A1, described blanking device A3 added ferrosilicon;
Control sampling analysis device A5 then and carry out the stokehold sampling analysis, analytical instrument can preferably adopt spectrograph, to the stokehold Chemical Composition that upper control unit transmitted, described control unit is controlled described blanking device A3 and is replenished respective element again according to sampling analysis device A5;
When the melting molten steel was warming up to 1590-1600 ℃ in described device for monitoring temperature A2 monitors described smelting furnace A1, described blanking device A3 added ferromanganese;
Upper then control unit control device for deoxidizing A6 deoxidation is to reduce the air content of molten steel as far as possible, and deoxidation is aluminium preferably, and its ratio is 0.03-0.06%, and in time controls slag making device A4 and sprinkle the flux slag making; Control sampling analysis device A5 then and carry out sampling analysis behind the stove, and in conjunction with control blanking device A3 till reaching the composition claimed range;
When the melting molten steel was warming up to 1610-1630 ℃ in described device for monitoring temperature A2 monitors described smelting furnace A1, described smelting furnace A1 outage was skimmed and is gone out the molten steel cast.
According to introducing in the preferred embodiment; owing to adopt acid lined furnace to carry out melting; simultaneously by control unit according to the temperature corresponding adding different-alloy element of device for monitoring temperature with certain molten steel; therefore it is minimum to make that the scaling loss of valuable important alloying element drops to, and for example the effective constituent of the last ferromanganese that adds just obtains maximum protection.This makes that not only whole fusion process production technique is simple, it is little to pollute, and production cost has also obtained effective control simultaneously.In addition, as the further improvement of technology, by carry out the flux slag making between appropriate step, discharged the impurity in the liquation, the precision of melting product and accepted product percentage are reliable more and be improved; Added stokehold sampling analysis (can also carry out sampling analysis in the stove) again, made technological process compact more, production efficiency and process are more reliable, the plant factor height.
Equipment for Heating Processing B:
Also provide Equipment for Heating Processing at above-mentioned wear-resistant alloy cast steel:
1, annealing furnace 1: temperature can be set as 850 ℃-900 ℃, and the residence time can be set as 3-5 hour annealing furnace 1; It is 850 ℃ of-900 ℃ of annealing furnaces 1 that described wear-resistant alloy cast steel 8 is placed temperature, is incubated 3-5 hour and comes out of the stove, and as for the first air cooling place I, carries out the air cooling first time then;
It is the push-down annealing furnace that preferred embodiment adopts annealing furnace, RJT-150-8 push-down isothermal annealing stove for example, and it is divided into 7 heating zone, and each Heating Zone Temperature is set at 850 ℃-900 ℃.Wear-resistant alloy cast steel 8 workpiece that a plurality of sizes that are prefabricated into annealing furnace 1 adapt are according to batch by above-mentioned 7 heating zone, and be heated intensification, and successive is incubated in above-mentioned 7 heating zone successively, so that wear-resistant alloy cast steel 8 obtains the soaking time of useful length in annealing furnace.Heating zone quantity also can be other quantity, its determine according to one of be to adapt time with the required heating of workpiece, to guarantee the requirement that adds heat request and large scale continuous prod of workpiece.
For reaching the purpose of automatic production and more effective control annealing operation, in 7 above-mentioned heating zone, can be provided with device for monitoring temperature 9 simultaneously, with demonstration, record and the remote reporting of realization temperature, and the further timely adjustment that realizes the annealing furnace temperature.Preferably, one, two, three, four, the slender acanthopanax hot-zone adopts the TCW-32A three phase voltage regulating, six or seven districts are with digital displaying meter temperature indicating degree, and each is distinguished all EL-100-60 multipoint recorder displayed record temperature.Wear-resistant alloy cast steel 8 is come out of the stove after 3-5 hour in insulation, as for the first air cooling place I, carries out the air cooling first time then.
2, quenching furnance 2 and quenching tank 7: temperature can be set as 900 ℃ ± 10 ℃, and the residence time can be set as 150 minutes quenching furnance 2; Cooling back product temperature is made as 300 ℃, and being equipped with heat-eliminating medium is the quenching tank 7 of water-soluble quenching liquid 3; Aforementioned quenching furnance 2 insulations that place temperature to be controlled at 900 ℃ ± 10 ℃ through the wear-resistant alloy cast steel 8 of air cooling are for the first time taken out after 150 minutes place quenching tank 7 to quench, heat-eliminating medium is a water-soluble quenching liquid 3, and wear-resistant alloy cast steel 8 cold causing are then transported quenching tank 7 about 300 ℃.
Preferred embodiment adopts casting chain-plate type quenching furnance, is made up of 5 heating zone, and each Heating Zone Temperature controls to 900 ℃ ± 10 ℃.The workpiece insulation is inserted quenching tank 7 after 150 minutes automatically, quenches.Can be provided with device for monitoring temperature 9 in each heating zone, with demonstration, record and the remote reporting of realization temperature, and the further timely adjustment that realizes the quenching furnance temperature.Preferably, each heating zone can be provided with the master control of digital display intelligent temperature controller, multipoint recorder centralized recording and monitoring.In addition, heating zone quantity also can be other quantity, its determine according to one of be to adapt time with the required heating of workpiece, to guarantee the requirement that adds heat request and large scale continuous prod of workpiece.
The heat-eliminating medium that adopts that quenches is a water-soluble quenching liquid 3.Preferably be furnished with PVA10%, three hexanol amine 1%, phenylformic acid receives 0.2%, the water-soluble quenching liquid of alizarin assistant 0.2%.For realizing further automatic production, the quenchant system 5 that is connected with quenching tank 7 can adopt has the higher systemic circulation form of automatic capability, and is furnished with special agitating function, guarantees supplying with stable continuously of hardening liquid.Temperature before hardening liquid 3 quenches can be normal temps, for example below 30 degree.Wear-resistant alloy cast steel 8 is residence time 8-25min in hardening liquid 3, detect the cooling temperature of workpiece by the device for monitoring temperature in the quenching tank 79, cause about 300 ℃ when workpiece is cold, by quenching tank 7 lift travelling belts workpiece is sent quenching tank 7 to area I I place then, carry out temper then.
3, tempering stove 4: temperature can be set as 200-230 ℃, and the residence time can be set as 3-4 hour tempering stove 4; To place temperature through the wear-resistant alloy cast steel 8 that quenches be tempering stove 4 to 200-230 ℃ with aforementioned, is incubated taking-up in 3-4 hour, as for the second air cooling place III, carries out air cooling then.
The preferred net belt type tempering stove that adopts: is made up of 5 heating zone, each Heating Zone Temperature is raised to 200-230 ℃, be incubated the air cooling that carries out of taking-up in 3-4 hour.The quantity of heating zone can be selected other quantity equally for these reasons, and each heating zone can be provided with the master control of digital display intelligent temperature controller, the multipoint recorder centralized recording is also monitored equitemperature monitoring device 9, to realize demonstration, record and the remote reporting of temperature.
4, haulage system: it transports connection with described wear-resistant alloy cast steel between described heat treatment system, to realize the thermal treatment process of described wear-resistant alloy cast steel.
It comprises as the lower section: as described in will coming from annealing furnace 1 as described in wear-resistant alloy cast steel 8 be transported to the first air cooling place I, be transported to the first conveyer A of described quenching furnance 2 again; To come from the described described wear-resistant alloy cast steel 8 that moves back quenching furnance 2 and be transported to described quenching tank 7 coolings, be transported to the second conveyer B at area I I place again; Described wear-resistant alloy cast steel 8 is transported to described tempering stove 4, is transported to the 3rd conveyer C of the second air cooling place III again.For example adopt lifting appliance, conveying belt isoline conveyer etc.
In addition, this Equipment for Heating Processing also is furnished with the timing device 10 that the described wear-resistant alloy cast steel of detection rests on the time in the above-mentioned stove in the above-mentioned zone of time control that needs, and can realize demonstration, record and the remote reporting of time, be convenient to the increasingly automated of whole production.
As further improving; also has upper control unit 6 in this Equipment for Heating Processing; annealing furnace 1 in the native system; quenching furnance 2 and quenching tank 7; quenchant system 5; tempering stove 4 and haulage system can be respectively or wired or wireless 11 the form passed through simultaneously be connected with upper control unit 6; so that upper control unit 6 can obtain the data signal that timing device 10 in the native system and device for monitoring temperature 9 send; and in time adjust the temperature and the residence time in the stove; and control haulage system matches with it and in time transports, and realizes that finally the system of extensiveization of total system controls automatically.
Above-mentioned Equipment for Heating Processing has: automatically the degree height, be convenient to its whole process is carried out long-range and on-the-spot process control, guaranteed that the described wear-resistant alloy cast steel that carries out smoothly, makes of thermal treatment process reaches required characteristics such as mechanical property.
According to wear-resistant alloy cast steel and the producing apparatus thereof that utility model disclosed, described wear-resistant alloy cast steel product tensile strength: 1500-1800MPa, yield strength: 1200-1400MPa, unit elongation: δ 57-15%, v-notch impelling strength Akv25-40J, hardness: 48-55HRC.Alloy Cast Steel and producing apparatus thereof in the utility model have: production technique is simple, cost is low, obdurability is high, hardening capacity and hardenability is good and free of contamination characteristics.Resulting Alloy Cast Steel is suitable in low temperature environment, as-20 ℃～0 ℃, and freezes the wear-resistant engineering machinery equipment that rock, frozen soil layer contact, and adapts to the requirement in the medium-term and long-term work of cold belt environment.
The embodiment that is disclosed in the utility model will obtain embodying and protection by claim, and will be any according to resulting enlightenment in the utility model, all fall among the scope that the utility model protects.
Claims (2)
1. the producing apparatus of a wear resistant alloy product made from steel is characterized in that, it comprises:
1) melting equipment comprises:
Smelting furnace, place in the stove to monitor the device for monitoring temperature of temperature in the described smelting furnace, can in described smelting furnace, throw in the blanking device of material, in described smelting furnace, drop into the slag making device that described flux carries out slag making, alloying element in the stove is carried out the sampling analysis device of sampling analysis, in smelting furnace, add reductor to reduce the device for deoxidizing of the air content in the molten steel as far as possible;
2) Equipment for Heating Processing, wrapping it comprises: heat treatment system with described wear-resistant alloy cast steel is transported the haulage system that is connected between described heat treatment system, described heat treatment system has successively along described haulage system: annealing furnace, quenching furnance, the tempering stove that can set the Heating temperature and the residence time; Between described quenching furnance and described tempering stove, also have can set the cooling temperature and the residence time, be equipped with the quenching tank that heat-eliminating medium is a water-soluble quenching liquid, link to each other and the quenchant system of hardening liquid is provided for described quenching tank with described quenching tank, described annealing furnace, quenching furnance or tempering stove can have a plurality of heating zone, and described each heating zone can be provided with the device for monitoring temperature that is used for described heating zone is realized demonstration, record and the remote reporting of temperature;
3) upper control unit, it controls described blanking device according to the device for monitoring temperature in the described smelting furnace, according to the device for monitoring temperature in the described Equipment for Heating Processing, control the Heating temperature and the residence time in the described Equipment for Heating Processing, and the automatization systemic circulation form of quenchant system and special agitating function.
2. the producing apparatus of wear resistant alloy product made from steel according to claim 1; it is characterized in that: described upper control unit can also be distinguished or the wired or wireless form of passing through simultaneously connects with described annealing furnace, quenching furnance, tempering stove and haulage system; so that upper control unit can obtain the data signal that timing device in the native system and device for monitoring temperature send; and in time adjust the temperature and the residence time in the stove; and control haulage system matches with it and in time transports, and realizes that finally the system of extensiveization of total system controls automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201779883U CN201605308U (en) | 2009-11-04 | 2009-11-04 | Manufacturing equipment for wear resistant alloy steel products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201779883U CN201605308U (en) | 2009-11-04 | 2009-11-04 | Manufacturing equipment for wear resistant alloy steel products |
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| Publication Number | Publication Date |
|---|---|
| CN201605308U true CN201605308U (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201779883U Expired - Fee Related CN201605308U (en) | 2009-11-04 | 2009-11-04 | Manufacturing equipment for wear resistant alloy steel products |
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| CN (1) | CN201605308U (en) |
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2009
- 2009-11-04 CN CN2009201779883U patent/CN201605308U/en not_active Expired - Fee Related
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Granted publication date: 20101013 Termination date: 20131104 |