CN1804095A - Preparation method for casting wear-resistant high speed steel - Google Patents
Preparation method for casting wear-resistant high speed steel Download PDFInfo
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- CN1804095A CN1804095A CN 200610041704 CN200610041704A CN1804095A CN 1804095 A CN1804095 A CN 1804095A CN 200610041704 CN200610041704 CN 200610041704 CN 200610041704 A CN200610041704 A CN 200610041704A CN 1804095 A CN1804095 A CN 1804095A
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- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 38
- 238000005266 casting Methods 0.000 title claims description 47
- 238000002360 preparation method Methods 0.000 title claims description 11
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 14
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 69
- 239000010959 steel Substances 0.000 claims description 69
- 238000000034 method Methods 0.000 claims description 25
- 239000000375 suspending agent Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 15
- 238000005496 tempering Methods 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 12
- 239000000956 alloy Substances 0.000 claims description 12
- 239000002667 nucleating agent Substances 0.000 claims description 12
- 239000004615 ingredient Substances 0.000 claims description 11
- 238000002791 soaking Methods 0.000 claims description 10
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 9
- 238000011081 inoculation Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910000604 Ferrochrome Inorganic materials 0.000 claims description 5
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 5
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 5
- 229910001145 Ferrotungsten Inorganic materials 0.000 claims description 5
- 108010038629 Molybdoferredoxin Proteins 0.000 claims description 5
- HBELESVMOSDEOV-UHFFFAOYSA-N [Fe].[Mo] Chemical compound [Fe].[Mo] HBELESVMOSDEOV-UHFFFAOYSA-N 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 5
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
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- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 229910000805 Pig iron Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 17
- 239000000470 constituent Substances 0.000 abstract 1
- 239000011651 chromium Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
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- 229910000851 Alloy steel Inorganic materials 0.000 description 3
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- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910019582 Cr V Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
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- 229910052714 tellurium Inorganic materials 0.000 description 2
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- 230000003245 working effect Effects 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
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- 239000010937 tungsten Substances 0.000 description 1
Abstract
The invention provides a process for preparing cast abrasion-proof high speed steel, wherein the chemical constituents comprise (by weight percentage) C 0.5-1.5%, W 5.0-7.0%, Mo 4.0-6.5%, Cr 3.5-5.5%, V 1.2-2.5%, Si<1.2%, Mn<1.2%, Ti 0.02-0.12%, N 0.005-0.040%, Nb 0.03-0.20%, Zn 0.005-0.050%, S<0.04%, P<0.04%, and balancing Fe.
Description
Technical field
The invention belongs to the metallic substance technical field, relate to a kind of casting wear-resistant high speed steel preparation method, particularly a kind of preparation method who adopts Suspension Foundry and current-following inoculation to handle casting wear-resistant high speed steel.
Background technology
Rapid steel is the material that a class has good red hardness and high temperature abrasion resistance, is widely used in the worker mould.The production method of tradition rapid steel tool and mould is at first the rapid steel ingot casting to be swaged into blank, and machining is made tool and mould more afterwards.In the rapid steel process of setting,, make the rapid steel embrittlement of grain boundaries serious, the toughness reduction because the segregation of carbon and carbide forming element tungsten, molybdenum, chromium, vanadium etc. forms a large amount of thick eutectic carbidess in rapid steel ingot solidification tissue.Because the existence of the netted eutectic carbides of crystal boundary easily produces waste products such as cracking, burning during forging.In addition, in the forging and cutting process of rapid steel tool and mould, a large amount of alloys will be arranged by scaling loss or become smear metal, and not only cause the waste of material, and increased production energy consumption, prolong process period, reduce production efficiency.Produce the advantage that the rapid steel tool and mould then can be given full play to casting with castmethod, make the tool and mould blank to greatest extent near the net shape of tool and mould, thereby reach the raising material use efficiency, simplify the production technique of tool and mould, reduce the purpose of tool and mould cost.In order to make the rapid steel tool and mould realize castmethod production, it is very necessary improving the form of eutectic carbides in the casting high speed steel and distribution and refinement casting high speed steel solidified structure.Chinese invention patent CN1264749 discloses a kind of high-speed antiwear cast steel, its composition following (weight %): 1.8～4.2C, 2～12W, 3～12Mo, 4～15Cr, 0～10Co, 2.5～10V, 0.3～2.5Nb, 0.5～1.5Si, 0.3～0.8Mn, 0.2～0.6Al, 0.02～0.10N, S≤0.03, P≤0.03, all the other are Fe, and high-carbon is adopted in this invention, high vanadium, the chromium type high casting high speed steel, castability is good, wear-resisting and red hardness good, be applicable to large-scale wearing piece, composite roller operational layer, although this invention casting wear-resistant high speed steel has good wear resistance, eutectic carbides quantity is many, obdurability is low, and is easy to crack and peel off during directly founder's mould uses.USSR (Union of Soviet Socialist Republics) patent of invention SU834225-B discloses a kind of casting high speed steel, and (weight %) is as follows for its main component: 1.0-1.2C, 4.0-5.0W, 6.5-8.0Mo, 6.5-8.0Cr, 2.5-3.5V, 0.15-0.40Si, 0.10-0.40Mn, 1.2-1.8Cu, 0.25-0.35Ce, 0.05-0.15Nb, 0.4-0.6Te and 0.03-0.06B, all the other are Fe.Wherein the adding of Te and B reduces the abrasion loss of casting high speed steel cutter, and shock resistance and fatigue property increase.Contain more tellurium in this invention casting high speed steel, the rapid steel chilling tendency is obvious, and fragility is bigger, is difficult to satisfy the direct casting of large-scale tool and mould.
Summary of the invention
The object of the invention provides a kind of preparation method of casting wear-resistant high speed steel.This method adopts the iron alloy ball in preparation process be nucleating agent as suspension agent, master alloy, adopt Suspension Foundry and current-following inoculation treatment process to handle casting high speed steel, reach refinement rapid steel solidified structure, improve eutectic carbides form and distribution, thereby improve its obdurability and wear resistance.
In order to realize above-mentioned task, the present invention realizes by following technical solution:
A kind of preparation method of casting wear-resistant high speed steel adopts electrosmelting, it is characterized in that, the weight percent of the chemical ingredients of the casting wear-resistant high speed steel of making is: C:0.5～1.5%, W:5.0～7.0%, Mo:4.0～6.5%, Cr:3.5～5.5%, V:1.2～2.5%, Si＜1.2%, Mn＜1.2%, Ti:0.02～0.12%, N:0.005～0.040%, Nb:0.03～0.20%, Zn:0.005～0.050%, S＜0.04%, P＜0.04%, surplus are Fe;
Concrete preparation comprises the following steps:
1) with ordinary scrap steel, rapid steel waste material, ferrotungsten, molybdenum-iron, the fusing of ferrochrome Hybrid Heating, with the pig iron or graphite carburetting, the molten clear back of molten steel adds ferrosilicon, ferromanganese and vanadium iron;
2) stokehold is adjusted to branch and temperature is risen to 1580 ℃～1630 ℃ after qualified, adds the aluminium deoxidation that accounts for molten steel weight 0.10%～0.20%, then comes out of the stove;
When 3) molten steel was come out of the stove, the master alloy that adds 1.5%～3.0% molten steel weight was as nucleating agent, and current-following inoculation is handled molten steel, molten steel through leave standstill and skim handle after, directly pour into casting mold;
The weight percent of the chemical ingredients of said nucleating agent is: Ti:2.5～8.0%, and N:0.5～2.5%, Nb:3.0～10.0%, Zn:0.5～2.0%, Mn:0.5～1.5%, Si:0.5～1.5%, P＜0.04%, S＜0.04%, surplus is Fe;
4) during pouring molten steel, 1.0%～2.0% the iron alloy ball that adds molten steel weight is as suspension agent;
The weight percent of the chemical ingredients of said suspension agent is: C:0.80～1.50%, and Mn:0.40～1.50%, Si:0.30～1.50%, Cr:0.50～1.00%, P＜0.05%, S＜0.05%, surplus is Fe;
5) foundry goods quenches and temper after sand removal and mechanical workout, 1180 ℃～1260 ℃ of quenching temperatures, and soaking time 2～4h, the type of cooling adopts oil cooling, 30 ℃～60 ℃ of oil temperature; Tempering temperature is 550 ℃～650 ℃, soaking time 3～6h, and air cooling after the tempering, tempering is 2～3 times under the same process, promptly obtains casting wear-resistant high speed steel.
Technique effect of the present invention is:
1. adopt method manufacturing of the present invention to divide casting wear-resistant high speed steel, saved the rapid steel ingot casting and be swaged into blank technology, reduced the scaling loss of hot forging process interalloy, saved the forge hot energy consumption, shortened the production cycle, production technique is easy, has obviously reduced the casting wear-resistant high speed steel production cost.
2. after casting wear-resistant high speed steel process master alloy current-following inoculation and iron alloy ball suspend and handle, good casting property, cast structure is tiny, eutectic carbides reticulattion disappears, mechanical property increases substantially, and keeps under 62～66HRC prerequisite in hardness, and impelling strength surpasses 20J/cm
2, fracture toughness property surpasses 35MPa.m
1/2
3. improve 30%～50% than common forging rapid steel the work-ing life of casting wear-resistant high speed steel wortle, production cost reduces more than 40%, foreplate with the casting wear-resistant high speed steel preparation, improve 2～3 times than high nickel-chrome alloy steel its work-ing life, obviously improved equipment operation rate, reduce the steel production cost, improved surface quality of steel.
Description of drawings
Fig. 1 is casting wear-resistant high speed steel suspension treatment process synoptic diagram of the present invention, wherein 1-sprue cup; The 2-loading hopper; 3-liquid collecting bag; The 4-sprue; The 5-die cavity.
The embodiment that provides below in conjunction with accompanying drawing and contriver is described in further detail the present invention.
Embodiment
The weight of the chemical ingredients of casting wear-resistant high speed steel of the present invention (%) is:
C:0.5～1.5%, W:5.0～7.0%, Mo:4.0～6.5%, Cr:3.5～5.5%, V:1.2～2.5%, Si＜1.2%, Mn＜1.2%, Ti:0.02～0.12%, N:0.005～0.040%, Nb:0.03～0.20%, Zn:0.005～0.050%, S＜0.04%, P＜0.04%, surplus is Fe.
Casting wear-resistant high speed steel electrosmelting of the present invention, its manufacturing technology steps is:
1. with ordinary scrap steel, rapid steel waste material, ferrotungsten, molybdenum-iron, the fusing of ferrochrome Hybrid Heating, with the pig iron or graphite carburetting, the molten clear back of molten steel adds ferrosilicon, ferromanganese and vanadium iron.
2. the stokehold is adjusted to branch and temperature is risen to 1580～1630 ℃ after qualified, adds the aluminium deoxidation that accounts for molten steel weight 0.10%～0.20%, then comes out of the stove.
3. will contain C:0.80～1.50%, Mn:0.40～1.50%, Si:0.30～1.50%, Cr:0.50～1.00%, P＜0.05%, S＜0.05%, surplus is that the iron alloy of Fe is crushed to the iron alloy ball of granularity 0.1～0.4mm and contains Ti:2.5～8.0%, N:0.5～2.5%, Nb:3.0～10.0%, Zn:0.5～2.0%, Mn:0.5～1.5%, Si:0.5～1.5%, P＜0.04%, S＜0.04%, surplus is that the master alloy of Fe is crushed to the fritter that granularity is 2～5mm, oven dry then, bake out temperature is used for the suspension agent and the nucleating agent of Suspension Foundry and inoculation less than 200 ℃.
4. after molten steel is come out of the stove, add 1.5%～3.0% master alloy as nucleating agent, current-following inoculation is handled molten steel, molten steel through leave standstill and skim handle after, directly pour into casting mold.In the pouring molten steel process, add 1.0%～2.0% iron alloy ball as suspension agent.
5. foundry goods quenches and temper after sand removal and mechanical workout, 1180～1260 ℃ of quenching temperatures, soaking time 2～4h, the type of cooling adopts oil cooling, 30～60 ℃ of oil temperature, 550～650 ℃ of tempering temperatures, soaking time 3～6h, air cooling after the tempering, tempering is 2～3 times under the same process, can obtain casting wear-resistant high speed steel.
Below be the embodiment that the contriver provides:
Embodiment 1:
Casting wear-resistant high speed steel of the present invention is with 500 kilograms of medium-frequency induction furnace meltings, and its manufacturing technology steps is:
1. with ordinary scrap steel, rapid steel waste material, ferrotungsten, molybdenum-iron, the fusing of ferrochrome Hybrid Heating, use pigging up, the molten clear back of molten steel adds ferrosilicon, ferromanganese and vanadium iron.
2. the stokehold is adjusted to branch and temperature is risen to 1620 ℃ after qualified, adds the aluminium deoxidation that accounts for molten steel weight 0.17%, then comes out of the stove.
3. after molten steel is come out of the stove, the master alloy that adds molten steel weight 1.8% is as nucleating agent, the weight percent of the chemical ingredients of nucleating agent is: Ti:6.03%, N:1.31%, Nb:4.10%, Zn:0.79%, Mn:0.97%, Si:0.88%, S:0.02%, P:0.02%, surplus is Fe; Master alloy is crushed to the fritter that granularity is 2～5mm, and dries under 180 ℃ of temperature, and current-following inoculation is handled molten steel, molten steel through leave standstill and skim handle after, directly pour into casting mold, cast rolling mill foreplate.
4. molten steel pours into from sprue cup 1, in the pouring molten steel process, 1.4% of adding molten steel weight iron alloy ball is as suspension agent from loading hopper 2, and the granularity of this suspension agent is 0.2mm, and through 160 ℃ of oven dry, wherein the weight percent of chemical ingredients is: C:1.33%, Mn:0.82%, Si:0.62%, Cr:0.75%, P:0.03%, S:0.02%, surplus is Fe; Molten steel and suspension agent react in liquid collecting bag 3, inject die cavity 5 (referring to Fig. 1) through sprue 4 then.
5. foundry goods quenches and temper after sand removal and mechanical workout, 1240 ℃ of quenching temperatures, and soaking time 2.5h, the type of cooling adopts oil cooling, 30～60 ℃ of oil temperature, 620 ℃ of tempering temperatures, soaking time 5h, air cooling after the tempering, tempering is 3 times under the same process, obtains the rolling mill foreplate.
The rolling mill foreplate composition of casting sees Table 1, and performance sees Table 2.
Table 1 rolling mill foreplate composition (weight %)
| C | W | Mo | Cr | V | Ti | N | Nb | Zn | Si | Mn | S | P | Fe |
| 0.88 | 6.53 | 4.27 | 3.84 | 1.55 | 0.09 | 0.021 | 0.07 | 0.013 | 1.10 | 0.93 | 0.017 | 0.032 | Surplus |
Table 2 rolling mill foreplate performance
| Room temperature hardness HRC | 600 ℃ of red hardness HRC | Tensile strength MPa | Impelling strength J/cm 2 | Fracture toughness property MPa.m 1/2 |
| 64.7 | 60.8 | 953 | 24.7 | 39.2 |
Embodiment 2:
Casting wear-resistant high speed steel of the present invention is with 1500 kilograms of medium-frequency induction furnace meltings, and its manufacturing technology steps is:
1. with ordinary scrap steel, rapid steel waste material, ferrotungsten, molybdenum-iron, the fusing of ferrochrome Hybrid Heating, use graphite carburetting, the molten clear back of molten steel adds ferrosilicon, ferromanganese and vanadium iron.
2. the stokehold is adjusted to branch and temperature is risen to 1590 ℃ after qualified, adds the aluminium deoxidation that accounts for molten steel weight 0.12%, then comes out of the stove.
3. after molten steel is come out of the stove, the master alloy that adds molten steel weight 2.7% is as nucleating agent, the weight percent of the chemical ingredients of nucleating agent is: Ti:4.38%, N:0.81%, Nb:5.72%, Zn:1.39%, Mn:1.24%, Si:0.86%, S:0.02%, P:0.03%, surplus is Fe; Master alloy is crushed to the fritter that granularity is 2～5mm and dries under 180 ℃ of temperature, and current-following inoculation is handled molten steel, molten steel through leave standstill and skim handle after, directly pour into casting mold, cast drawing wire machine wortle.
4. molten steel pours into from sprue cup 1, in the pouring molten steel process, adds the iron alloy ball of molten steel weight 1.6% as suspension agent from loading hopper 2, its suspension agent granularity is 0.2mm, and through 160 ℃ of oven dry, wherein the weight percent of chemical ingredients is: C:1.02%, Mn:1.10%, Si:0.97%, Cr:0.53%, P:0.03%, S:0.02%, surplus is Fe, and molten steel and suspension agent react in liquid collecting bag 3, injects die cavity 5 (referring to Fig. 1) through sprue 4 then.
5. foundry goods quenches and temper after sand removal and mechanical workout, 1195 ℃ of quenching temperatures, and soaking time 3.5h, the type of cooling adopts oil cooling, 30～60 ℃ of oil temperature, 590 ℃ of tempering temperatures, soaking time 5h, air cooling after the tempering, tempering is 2 times under the same process, obtains the drawing wire machine wortle.
Casting wear-resistant high speed steel drawing wire machine wortle composition sees Table 3, and performance sees Table 4.
Table 3 casting wear-resistant high speed steel drawing wire machine wortle composition (weight %)
| C | W | Mo | Cr | V | Ti | N | Nb | Zn | Si | Mn | S | P | Fe |
| 1.13 | 5.32 | 5.89 | 5.14 | 2.10 | 0.10 | 0.019 | 0.15 | 0.033 | 0.88 | 1.12 | 0.02 | 0.03 | Surplus |
Table 4 casting wear-resistant high speed steel drawing wire machine wortle performance
| Room temperature hardness HRC | 600 ℃ of red hardness HRC | Tensile strength MPa | Impelling strength J/cm 2 | Fracture toughness property MPa.m 1/2 |
| 65.5 | 61.2 | 983 | 22.4 | 36.9 |
Take the use of installing of the foregoing description 1 and embodiment 2 casting wear-resistant high speed steel foreplates and wortle, its wear resistance, thermotolerance, oxidation-resistance and thermal fatigue resistance all are improved largely, and have toughness preferably.Phenomenon of rupture does not take place in the use.Every cover foreplate can rolled wire 2000～2500t, improves 2～3 times than high nickel-chrome alloy steel foreplate, can satisfy user's requirement fully.With utilizing once more after the foreplate recovery remelting of losing efficacy, can also save valuable alloys in a large number, obtained favorable economic benefit.Casting wear-resistant high speed steel wortle of the present invention is used for the 70# steel wire of φ 1.0mm is drawn into φ 0.35mm on the drawing wire machine of drawing speed 10m/s, every kiloton steel 0.073～0.094mm that weares and teares approximately, wear resistance is good, the fracture of wire that causes in the drawing process is few, and wortle surface smoothness height, drawing force is low, and the ton silk can save 30～35kW.h, reduces power consumption approximately more than 5%.
Casting wear-resistant high speed steel hardness of the present invention is high, red hardness and good toughness, and wearability and non-oxidizability are good, do not rupture in the use procedure, do not peel off, and production technology is easy, and production cost is low, and serviceability obviously is better than common steel alloy and forges high-speed steel. Can significantly improve industrial and mineral wear-resisting spare part service life, reduce spare parts cost, have good economic benefit.
Claims (5)
1. the preparation method of a casting wear-resistant high speed steel adopts electrosmelting, it is characterized in that, the weight percent of the chemical ingredients of the casting wear-resistant high speed steel of making is: C:0.5～1.5%, W:5.0～7.0%, Mo:4.0～6.5%, Cr:3.5～5.5%, V:1.2～2.5%, Si＜1.2%, Mn＜1.2%, Ti:0.02～0.12%, N:0.005～0.040%, Nb:0.03～0.20%, Zn:0.005～0.050%, S＜0.04%, P＜0.04%, surplus are Fe;
Concrete preparation comprises the following steps:
1) with ordinary scrap steel, rapid steel waste material, ferrotungsten, molybdenum-iron, the fusing of ferrochrome Hybrid Heating, with the pig iron or graphite carburetting, the molten clear back of molten steel adds ferrosilicon, ferromanganese and vanadium iron;
2) stokehold is adjusted to branch and temperature is risen to 1580 ℃～1630 ℃ after qualified, adds the aluminium deoxidation that accounts for molten steel weight 0.10%～0.20%, then comes out of the stove;
When 3) molten steel was come out of the stove, the master alloy that adds 1.5%～3.0% molten steel weight was as nucleating agent, and current-following inoculation is handled molten steel, molten steel through leave standstill and skim handle after, directly pour into casting mold;
The weight percent of the chemical ingredients of said nucleating agent is: Ti:2.5～8.0%, and N:0.5～2.5%, Nb:3.0～10.0%, Zn:0.5～2.0%, Mn:0.5～1.5%, Si:0.5～1.5%, P＜0.04%, S＜0.04%, surplus is Fe;
4) during pouring molten steel, 1.0%～2.0% the iron alloy ball that adds molten steel weight is as suspension agent;
The weight percent of the chemical ingredients of said suspension agent is: C:0.80～1.50%, and Mn:0.40～1.50%, Si:0.30～1.50%, Cr:0.50～1.00%, P＜0.05%, S＜0.05%, surplus is Fe;
5) foundry goods quenches and temper after sand removal and mechanical workout, 1180 ℃～1260 ℃ of quenching temperatures, and soaking time 2～4h, the type of cooling adopts oil cooling, 30 ℃～60 ℃ of oil temperature; Tempering temperature is 550 ℃～650 ℃, soaking time 3～6h, and air cooling after the tempering, tempering is 2～3 times under the same process, promptly obtains casting wear-resistant high speed steel.
2. as the said method of claim 1, it is characterized in that the granularity of described suspension agent is 0.1～0.4mm.
3. as the said method of claim 1, it is characterized in that the granularity of described nucleating agent is 2～5mm.
4. method as claimed in claim 1 or 2 is characterized in that, use described suspension agent oven dry back, and its bake out temperature is not more than 200 ℃.
5. as claim 1 or 3 described methods, it is characterized in that described suspension agent oven dry back is used, its bake out temperature is not more than 200 ℃.
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| CNB2006100417049A CN100363525C (en) | 2006-01-19 | 2006-01-19 | Preparation method for casting wear-resistant high speed steel |
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| CNB2006100417049A CN100363525C (en) | 2006-01-19 | 2006-01-19 | Preparation method for casting wear-resistant high speed steel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415924C (en) * | 2006-09-05 | 2008-09-03 | 郑州航空工业管理学院 | High carbon high-speed steel of containing granular carbide, and preparation method |
| CN100457952C (en) * | 2007-06-26 | 2009-02-04 | 郑州航空工业管理学院 | Casting high speed steel cutter and preparation method thereof |
| CN101905313A (en) * | 2010-07-29 | 2010-12-08 | 苏州市海威特铸造厂 | Method for casting main spindle box |
| CN102211178A (en) * | 2011-04-14 | 2011-10-12 | 河北坤腾泵业有限公司 | Composite suspending agent for producing roller sleeve and disc lining of vertical mill and special equipment added with same |
| CN107460411A (en) * | 2017-09-08 | 2017-12-12 | 江苏精工特种材料有限公司 | High silicomanganese high speed steel material and preparation method thereof |
| CN114318111A (en) * | 2021-12-29 | 2022-04-12 | 浙江精瑞工模具有限公司 | Yttrium-based high-speed steel and preparation method thereof |
| CN114411046A (en) * | 2022-01-19 | 2022-04-29 | 丹阳市曙光新材料科技有限公司 | Process for smelting high-speed steel by using intermediate frequency furnace-LF furnace-VD furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149298C (en) * | 2000-03-24 | 2004-05-12 | 冶金工业部钢铁研究总院 | High-speed antiwear cast steel |
-
2006
- 2006-01-19 CN CNB2006100417049A patent/CN100363525C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100415924C (en) * | 2006-09-05 | 2008-09-03 | 郑州航空工业管理学院 | High carbon high-speed steel of containing granular carbide, and preparation method |
| CN100457952C (en) * | 2007-06-26 | 2009-02-04 | 郑州航空工业管理学院 | Casting high speed steel cutter and preparation method thereof |
| CN101905313A (en) * | 2010-07-29 | 2010-12-08 | 苏州市海威特铸造厂 | Method for casting main spindle box |
| CN102211178A (en) * | 2011-04-14 | 2011-10-12 | 河北坤腾泵业有限公司 | Composite suspending agent for producing roller sleeve and disc lining of vertical mill and special equipment added with same |
| CN107460411A (en) * | 2017-09-08 | 2017-12-12 | 江苏精工特种材料有限公司 | High silicomanganese high speed steel material and preparation method thereof |
| CN114318111A (en) * | 2021-12-29 | 2022-04-12 | 浙江精瑞工模具有限公司 | Yttrium-based high-speed steel and preparation method thereof |
| CN114411046A (en) * | 2022-01-19 | 2022-04-29 | 丹阳市曙光新材料科技有限公司 | Process for smelting high-speed steel by using intermediate frequency furnace-LF furnace-VD furnace |
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| Publication number | Publication date |
|---|---|
| CN100363525C (en) | 2008-01-23 |
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