CN100342052C - Hot work die steel - Google Patents
Hot work die steel Download PDFInfo
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- CN100342052C CN100342052C CNB2004100106568A CN200410010656A CN100342052C CN 100342052 C CN100342052 C CN 100342052C CN B2004100106568 A CNB2004100106568 A CN B2004100106568A CN 200410010656 A CN200410010656 A CN 200410010656A CN 100342052 C CN100342052 C CN 100342052C
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 69
- 239000010959 steel Substances 0.000 title claims abstract description 69
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000004615 ingredient Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000003973 paint Substances 0.000 abstract 1
- 230000003245 working effect Effects 0.000 description 13
- 229910052684 Cerium Inorganic materials 0.000 description 11
- 229910052727 yttrium Inorganic materials 0.000 description 11
- 238000004512 die casting Methods 0.000 description 10
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 229910000881 Cu alloy Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000005242 forging Methods 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000007669 thermal treatment Methods 0.000 description 4
- 230000004087 circulation Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 229910019589 Cr—Fe Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 229910008455 Si—Ca Inorganic materials 0.000 description 2
- 229910011212 Ti—Fe Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910020015 Nb W Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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Abstract
The invention relates to a hot-work die steel material. The paint mainly comprises the following chemical components in percentage by weight: c: 0.200-0.350, Cr: 7.000 to 12.224, Mo: 0.800 to 2.000, Ni: 0.600-1.500, V: 0.300 to 1.200, Mn: 0.200 to 0.600, Si: 0.700-1.500, S is less than or equal to 0.040, P is less than or equal to 0.040, N: 0.005 to 0.100, Ti: 0.050 to 0.200, Ca: 0.001-0.050, Ce: 0.000 to 0.100, Y: 0.000 to 0.100, Fe: and the balance. The hot work die steel has longer service life.
Description
Technical field
The present invention relates to a kind of novel hot-work die steel material.
Background technology
The current global mould market gross output value is about 600～65,000,000,000 dollars, and hot-work die steel accounts for about 20% in worker, die steel market.Therefore, the work-ing life of hot-work die and manufacturing cost have determined the manufacturing cost of efficiency of equipment and product.
At present the work-ing life of the hot-work die of world's overwhelming majority of countries on the low side, therefore, improve hot-work die work-ing life, reduce its manufacturing cost, improving equipment work efficient, is the significant problem that die industry needs to be resolved hurrily for many years always, has great national economy meaning.
Composition at hot-work die steel designs both at home and abroad, a large amount of research and development work is being carried out in aspects such as highly malleablized and microalloying processing always, and develops some hot-work die steels, and is as shown in table 1, but performance is very not satisfactory, is badly in need of further research and development New Hot Work Die Steel.
Summary of the invention
The objective of the invention is to propose a kind of novel high life hot-work die steel, heat resistanceheat resistant mechanical fatigue by improving hot-work die steel, resistance to wear, ability such as plasticity_resistant deformation, with work-ing life of improving hot-work die, reduce the mould comprehensive cost, improve the working efficiency of equipment.
Hot-work die steel of the present invention mainly is made of by weight percentage following chemical ingredients:
C:0.200～0.350, Cr:7.000～12.224, Mo:0.800～2.000, Ni:0.600～1.500, V:0.300～1.200, Mn:0.200～0.600, Si:0.700～1.500, S≤0.040, P≤0.040, N:0.005～0.100, Ti:0.050～0.200, Ca:0.001～0.050, Fe: surplus.
In above one-tenth is grouped into, also can add Ce:0.005～0.100 or Y:0.005～0.100 or add Ce:0.005～0.100, Y:0.005～0.100 simultaneously, improve its over-all properties with the microtexture of improving novel rotten hot-work die steel as the composite inoculating element.After rotten, hardness, the intensity of novel rotten hot-work die steel slightly improve, and performances such as normal temperature impelling strength and heat resistanceheat resistant mechanical fatigue obviously improve.
The main failure forms of hot-work die is: thermal mechanical fatigue crackle, wearing and tearing, viscous deformation etc.Because technical solution of the present invention has improved red hardness, thermostability, oxidation-resistance, heat resistanceheat resistant mechanical fatigue and the resistance to abrasion etc. of New Hot Work Die Steel by optimizing C, Cr, Mo, Ni, elementary compositions such as V, N; By the crystal grain that added Y, Ce, refinement, reduced harmful elements such as the O in the molten steel, S and the form and the solidified structure that have improved inclusion, further improved the over-all properties of New Hot Work Die Steel and the work-ing life of hot-work die.
The melting of New Hot Work Die Steel of the present invention is identical with the melting method of common hot-work die steel.Hot-work die steel of the present invention is through pre-treatment, quenching and double tempering thermal treatment, and the tissue that finally obtains is a large amount of martensite and a spot of bainite, ferrite and residual austenite.
Description of drawings
Fig. 1 (a) is the copper alloy automobile gearbox synchronous ring forging mold that adopts hot-work die steel of the present invention to make.
(b) this mould is used for carrying out on 16 tons of double disk friction screw press scene forging automobile gearbox synchronous ring.
Fig. 2 (a) is the die casting that adopts the press casting copper alloy automobile purging valve body of hot-work die steel manufacturing of the present invention.
(b) copper alloy purging valve body die casting
Fig. 3 (a) is the aluminium alloy outer cover die casting (siemens) that adopts hot-work die steel of the present invention to make
(b) aluminium alloy outer cover die casting (siemens)
Embodiment
Embodiment 1
The embodiment of the New Hot Work Die Steel of 19 kinds of moietys producing by technical solution of the present invention sees table 2 for details, can find out that from table 2 hot-work die steel of the present invention is made of by weight percentage following main chemical compositions:
C:0.200～0.350, Cr:7.000～12.224, Mo:0.800～2.000, Ni:0.600～1.500, V:0.300～1.200, Mn:0.200～0.600, Si:0.700～1.500, S≤0.040, P≤0.040, N:0.005～0.100, Ti:0.050～0.200, Ca:0.001～0.050, Fe: surplus.
In above one-tenth is grouped into, also can add Ce:0.005～0.100 or Y:0.005～0.100 or add Ce:0.005～0.100, Y:0.005～0.100 simultaneously, improve its obdurability with the microtexture of improving New Hot Work Die Steel as the composite inoculating element.After rotten, hardness, the intensity of novel rotten hot-work die steel slightly improve, and normal temperature impelling strength obviously improves.
1-5 sample in the table 2 is the New Hot Work Die Steel that does not contain Y, Ce in its component; The 6-9 sample is the novel rotten hot-work die steel that contains Y:0.005～0.100 in its component; The 10-12 sample is the novel rotten hot-work die steel that contains Ce:0.005～0.100 in its component; The 13-19 sample is the novel rotten hot-work die steel that contains Ce:0.005～0.100, Y:0.005～0.100 in its component simultaneously.
The foregoing description sample production condition:
Adopt the 250Kg medium-frequency induction furnace, the non-oxidizing process process for making.After the pig iron, steel scrap melt clearly, add various iron alloys (Cr-Fe, Mo-Fe, Ni etc.), add V-Fe before the tapping, 1600～1650 ℃ of slotting Al tappings, adopt that the method that pours in the bag is carried out composite inoculating, bred, purifying treatment, compound modifier consists of in the bag: Y, Ce, Ti-Fe, Si-Ca, its granularity is 5～10mm.Adopt SiO
2The wedge-shaped samples of sand mold cast 30 (going to the bottom) * 60 (upper base) * 180 (height) * 300 (length) mm.Sample is through (1030～1080 ℃) and double tempering (520～660 ℃) thermal treatment of quenching.Impelling strength (α
K) value is: 4 non-notch (mean values of 10 * 7 * 55mm) samples; Hardness is: 6 mean values.
Embodiment 2
Produce the New Hot Work Die Steel that does not add Y, Ce alterant and add Y, Ce alterant by technical solution of the present invention.
1) New Hot Work Die Steel composition
The novel rotten hot-work die steel weight percent composition of embodiment is as follows:
C：0.28，Cr：7.80，Mo：1.02，Ni：0.76，V：0.83，Mn：0.26，Si：0.76，S≤0.04，P≤0.04，N：0.04，Ce：0.00～0.03，Y：0.00～0.01，Ti：0.06，Ca：0.03。
2) melting of novel rotten hot-work die steel and cast
Adopt the 250Kg medium-frequency induction furnace, the non-oxidizing process process for making.After the pig iron, steel scrap melt clearly, add various iron alloys (Cr-Fe, Mo-Fe, Ni etc.), add V-Fe before the tapping, 1600～1650 ℃ of slotting Al tappings, adopt that the method that pours in the bag is carried out composite inoculating, bred, purifying treatment, compound modifier consists of in the bag: Y, Ce, Ti-Fe, Si-Ca, its granularity is 5～10mm.Adopt SiO
2The wedge-shaped samples of sand mold cast 30 (going to the bottom) * 60 (upper base) * 180 (height) * 300 (length) mm.Impelling strength (α
K) value is: 4 non-notch (mean values of 10 * 7 * 55mm) samples; Hardness is: 6 mean values.
3) thermal treatment of New Hot Work Die Steel
Quenching (1030～1080 ℃) and double tempering (520～660 ℃) thermal treatment
4. New Hot Work Die Steel performance
The New Hot Work Die Steel that present embodiment does not add Y, Ce alterant at room temperature, hardness is more than HRC42, impelling strength is at 169J/cm
2The New Hot Work Die Steel that adds Y, Ce alterant at room temperature, hardness is more than HRC42, impelling strength is at 282～361J/cm
2, the tensile strength of room temperature is more than 1200MPa., compare with the New Hot Work Die Steel of the present invention that does not add Y, Ce alterant the New Hot Work Die Steel of the present invention processing of going bad with Y, Ce alterant, thermal fatigue property has improved 50～150%; Impelling strength has improved 100～200%; (seeing table 3～5 for details).
Embodiment 3
Adopt New Hot Work Die Steel of the present invention to make and be used for the hot-work die (forging mold that 16 tons of double disk friction screw press forge copper alloy automobile gearbox synchronous ring, see accompanying drawing 1 for details), its work-ing life is respectively than having improved more than 2 times the work-ing life of former identical hot-work die with 3Cr2W8V hot-work die steel or the manufacturing of H13 hot-work die steel or more than 8 times.Its on-the-spot contrast in work-ing life situation sees table 6 for details.
Embodiment 4
Adopt New Hot Work Die Steel of the present invention to make to be used for the hot-work die (die casting of the copper alloy purging valve body that 250 tons of pressure die-casting machine die-casting automobiles use, see accompanying drawing 2 for details), its work-ing life is than having improved more than 1 times the work-ing life of the former hot-work die made from the 3Cr2W8V steel.Its on-the-spot contrast in work-ing life situation sees table 7 for details.
Embodiment 5
Adopt New Hot Work Die Steel of the present invention to make automobile aluminium alloy machine oil pump housing, aluminium alloy receiving apparatus cover plate, the die casting of aluminium alloy lid and aluminium alloy outer cover aluminum alloy die castings such as (seeing accompanying drawing 3 for details) just is applied in the actual production at present.
The weight percent composition of the high chromium hot-work die steel that table 1 has been developed at present both at home and abroad
| The patent No. | C Si | Cr Nb | W Ce | Mo Co | V Y | Ti S | Ni B | Mn N |
| WO88/07093 (Senegal) | 0.50～2.50 0.10～2.00 | 6.50～11.00 - | ≤1.00 - | ≤4.00 - | 3.00～15.00 - | - - | - - | 0.10～2.00 0.500～1.500 |
| 1395625 (Germany) | 0.40～0.75 ≤0.70 | 12.00～19.00 - | ≤1.50 - | 0.50～1.50 - | 0.05～0.30 - | - 0.020～0.150 | ≤0.20 0.008 | 0.40～1.60 ≤0.100 |
| JP11152549 (Japan) | 0.1～0.50 ≤0.50 | 3.00～13.00 0.01～1.00 | 1.00～8.00 - | ～3.00 1.00～10.00 | 0.01～1.00 - | - - | ≤1.50 0.003～0.040 | ≤1.50 0.005～0.050 |
| US2002182099 (Japan) | 0.05～0.25 ≤0.30 | 5.00～13.00 0.01～1.00 | 1.00～8.00 - | ≤2.00 1.00～10.00 | 0.01～1.00 - | - - | ≤1.00 0.003～0.02 | ≤0.30 0.005～0.05 |
Table 2 New Hot Work Die Steel chemical ingredients and mechanical property
| Test piece number (Test pc No.) | Chemical component weight per-cent | Mechanical property | ||||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | V | N | Ti | Y | Ce | Ca | Hardness (HRC) | Impelling strength (α KJ/cm 2) | |
| 1 2 3 4 5 6 7 8 9 10 11 12 13 15 15 16 17 18 19 | 0.205 0.255 0.309 0.348 0.298 0.283 0.251 0.261 0.256 0.263 0.271 0.241 0.266 0.268 0.265 0.274 0.292 0.315 0.334 | 0.704 1.462 0.745 0.911 0.738 0.761 1.023 1.244 1.389 0.835 1.303 1.362 1.452 0.917 1.275 0.985 1.468 1.299 1.138 | 0.304 0.232 0.237 0.254 0.238 0.366 0.385 0.282 0.486 0.284 0.379 0.282 0.377 0.270 0.470 0.266 0.370 0.268 0.364 | 0.026 0.028 0.023 0.032 0.024 0.024 0.016 0.013 0.019 0.011 0.015 0.014 0.017 0.012 0.011 0.010 0.012 0.013 0.012 | 0.014 0.018 0.016 0.018 0.014 0.015 0.013 0.017 0.018 0.017 0.017 0.019 0.019 0.017 0.017 0.017 0.017 0.017 0.017 | 7.019 9.813 10.498 12.935 8.374 9.213 7.795 7.844 7.791 7.801 8.751 7.704 8.111 8.723 7.771 9.733 10.255 12.224 12.942 | 0.882 1.072 1.577 1.986 0.881 1.078 1.060 1.138 1.040 1.339 1.048 1.246 1.147 0.883 1.234 0.918 1.233 1.545 1.935 | 1.461 1.063 0.633 0.934 0.759 1.306 0.972 1.326 0.758 0.959 0.767 1.353 0.759 0.762 1.476 1.113 0.762 0.956 1.384 | 0.304 0.965 0.588 1.167 0.789 0.510 0.852 0.645 0.854 0.450 0.851 0.955 0.559 0.842 0.945 0.533 0.642 1.045 1.153 | 0.005 0.052 0.098 0.045 0.063 0.008 0.006 0.342 0.072 0.081 0.053 0.045 0.046 0.039 0.012 0.045 0.051 0.068 0.088 | 0.051 0.052 0.064 0.061 0.058 0.061 0.058 0.054 0.182 0.067 0.065 0.165 0.072 0.064 0.149 0.065 0.094 0.053 0.118 | 0.005 0.039 0.098 0 0 0 0.005 0.038 0.093 0.012 0.03 0.035 0.012 | 0 0 0 0.005 0.036 0.096 0.005 0.016 0.095 0.028 0.01 0.013 0.032 | 0.022 0.001 0.015 0.005 0.034 0.048 0.015 0.032 0.037 0.034 0.016 0.033 0.001 0.033 0.046 0.018 0.035 0.007 0.019 | 41.3 42.2 42.7 44.5 42.4 42.5 42.3 43.4 42.5 44.1 42.5 44.2 43.5 44.6 42.5 43.5 44.6 44.1 44.5 | 158 146 152 83 168 166 197 280 186 208 297 196 313 356 256 363 316 236 228 |
Impelling strength (the J/cm of table 3 New Hot Work Die Steel
2)
| Die steel of the present invention | It is rotten not add Ce, Y | Y is rotten | Ce is rotten | The Y-Ce composite inoculating |
| Impelling strength | 169 | 282 | 296 | 361 |
The thermal fatigue resistance of table 4 New Hot Work Die Steel (main crack length mm)
| The thermal fatigue cycle index | It is rotten not add Ce, Y | Y is rotten | Ce is rotten | Y-Ce is rotten |
| 3000 circulations of 1000 circulations of 500 circulations | 0.8 1.8 2.5 | 0.6 1.3 1.5 | 0.5 1.4 1.6 | 0.3 0.8 1.2 |
Table 5 adds the mechanical property of the rotten New Hot Work Die Steel of Ce, Y
| Yield strength σ 0.2 (MPa) | Tensile strength sigma b (MPa) | Elongation δ 5 (％) | Shrinking percentage ψ (%) | Hardness (HRC) | Young's modulus (GPa) |
| 1150～1300 | 1200～1500 | 13 | 44 | 42～45 | 17244 ～ 18029 |
The applicable cases of table 6 New Hot Work Die Steel on copper alloy automobile gearbox synchronous ring forging mold
| The mould steel grade | Mould hardness (HRC) | Work-ing life (number of packages) | Failure mode |
| 3Cr2W8V (steel) H13 (steel) steel grade of the present invention | 48～50 50～53 48.2 | Average 25000～30000 average 8000～10,000 93000 | Root cracking and to scrap abrasion size overproof can be repaired tiny crack 2～3 times, continues to use after falling face |
The rig-site utilization situation of table 7 New Hot Work Die Steel on copper alloy purging valve body die casting
| The mould steel grade | Mould hardness (HRC) | Work-ing life (number of packages) | Failure mode |
| 3Cr2W8V (steel) steel grade of the present invention | 48～50 46 | 3800 8800 | Sticking to mould is repaired the dimension overproof sticking to mould, repairs dimension overproof |
Claims (4)
1. hot-work die steel is characterized in that mainly being made up of by weight percentage following chemical ingredients:
C:0.200～0.350, Cr:7.000～12.224, Mo:0.800～2.000, Ni:0.600～1.500, V:0.300～1.200, Mn:0.200～0.600, Si:0.700～1.500, S≤0.040, P≤0.040, N:0.005～0.100, Ti:0.050～0.200, Ca:0.001～0.050, Fe: surplus.
2. hot-work die steel according to claim 1 is characterized in that also including in its component Ce:0.005～0.100.
3. hot-work die steel according to claim 1 is characterized in that also including in its component Y:0.005～0.100.
4. hot-work die steel according to claim 1 is characterized in that also including in its component Ce:0.005～0.100, Y:0.005～0.100.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54116317A (en) * | 1978-03-03 | 1979-09-10 | Daido Steel Co Ltd | Heat resistant steel with good cutting property |
| US4799972A (en) * | 1985-10-14 | 1989-01-24 | Sumitomo Metal Industries, Ltd. | Process for producing a high strength high-Cr ferritic heat-resistant steel |
| US5069870A (en) * | 1989-03-06 | 1991-12-03 | Sumitomo Metal Industries, Ltd. | High-strength high-cr steel with excellent toughness and oxidation resistance |
| JPH09267190A (en) * | 1996-03-29 | 1997-10-14 | Kobe Steel Ltd | Welding wire for high crome ferrite wire |
| CN1209464A (en) * | 1997-03-25 | 1999-03-03 | 株式会社东芝 | High-toughness thermo-resisting steel, turbine rotor and mfg. method therefor |
| CN1316540A (en) * | 2000-03-30 | 2001-10-10 | 住友金属工业株式会社 | Heat-resisting steel |
| CN1405353A (en) * | 2002-10-20 | 2003-03-26 | 吉林大学 | Novel casting and hot work tool steel |
| CN1436251A (en) * | 2000-06-15 | 2003-08-13 | 尤迪霍尔姆工具公司 | Steel alloy, plastic moulding tool and tough-hardened blank for plastic moulding tools |
| CN1436874A (en) * | 2002-02-05 | 2003-08-20 | 日本高周波钢业株式会社 | Thermal tool steel |
-
2004
- 2004-01-20 CN CNB2004100106568A patent/CN100342052C/en not_active Expired - Lifetime
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54116317A (en) * | 1978-03-03 | 1979-09-10 | Daido Steel Co Ltd | Heat resistant steel with good cutting property |
| US4799972A (en) * | 1985-10-14 | 1989-01-24 | Sumitomo Metal Industries, Ltd. | Process for producing a high strength high-Cr ferritic heat-resistant steel |
| US5069870A (en) * | 1989-03-06 | 1991-12-03 | Sumitomo Metal Industries, Ltd. | High-strength high-cr steel with excellent toughness and oxidation resistance |
| JPH09267190A (en) * | 1996-03-29 | 1997-10-14 | Kobe Steel Ltd | Welding wire for high crome ferrite wire |
| CN1209464A (en) * | 1997-03-25 | 1999-03-03 | 株式会社东芝 | High-toughness thermo-resisting steel, turbine rotor and mfg. method therefor |
| CN1316540A (en) * | 2000-03-30 | 2001-10-10 | 住友金属工业株式会社 | Heat-resisting steel |
| CN1436251A (en) * | 2000-06-15 | 2003-08-13 | 尤迪霍尔姆工具公司 | Steel alloy, plastic moulding tool and tough-hardened blank for plastic moulding tools |
| CN1436874A (en) * | 2002-02-05 | 2003-08-20 | 日本高周波钢业株式会社 | Thermal tool steel |
| CN1405353A (en) * | 2002-10-20 | 2003-03-26 | 吉林大学 | Novel casting and hot work tool steel |
Non-Patent Citations (1)
| Title |
|---|
| 铸造热锻模具钢的研究与应用 方健儒，铸造，第51卷第1期 2002 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105747918A (en) * | 2016-04-27 | 2016-07-13 | 浙江祥晖数码科技有限公司 | Novel automatic rotating type wine decanter |
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| CN1557985A (en) | 2004-12-29 |
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