CN100389926C - Hot werk mould steel welding material - Google Patents
Hot werk mould steel welding material Download PDFInfo
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- CN100389926C CN100389926C CNB2005100170338A CN200510017033A CN100389926C CN 100389926 C CN100389926 C CN 100389926C CN B2005100170338 A CNB2005100170338 A CN B2005100170338A CN 200510017033 A CN200510017033 A CN 200510017033A CN 100389926 C CN100389926 C CN 100389926C
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Abstract
The present invention belongs to a technology of metallurgical processing, which relates to a new hot work mould steel welding material. The present invention aims to provide a hot work mould steel welding material which is suitable for repairing the defects of mould steel and used for automatically manufacturing moulds by built-up welding. Concretely, the present invention has the technical scheme that the deposited metal of the present invention comprises the following chemical components: 0.15 to 0.35 wt% of C, 8.0 to 11.0 wt% of Cr, 0.8 to 1.5 wt% of Mo, 0.60 to 0.92 wt% of Ni, 0.60 to 1.05 wt% of V, 0.20 to 0.50 wt% of W, 0.20 to 0.55 wt% of Mn, 0.50 to 0.85 wt% of Si, at most 0.035 wt% of S, at most 0.040 wt% of P, 0.001 to 0.050 wt% of Ce, 0.005 to 0.025 wt% of Ti and 0.002 to 0.015 wt% of B.
Description
Technical field
The invention belongs to the metallurgical processing technology, relate to a kind of new hot werk mould steel welding material.
Background technology
At present, the hot die steel kind is more, for example common 5CrMnMo, 5CrNiMo, 3Cr2W8, the 45CrWMoVTi of better performances, 35CrNi3MoV, H-13 etc.But the welding material kind is less, and commonly used have D337 welding rod (3Cr2W8 type), D397 welding rod (5CrMnMo type), T-SKD61 and a QRO90 wlding (4Cr5MoSiV1 is the H-13 type) etc.Along with industrial expansion, the kind of hot die steel and application thereof are more and more, as thermal cutting cutter, forging tools cutting edge, forging die, die casting, injection mould, restriking dies, roll, forming rolls etc.Therefore, also more and more higher to the performance requirement of mould steel, the method for mfg. moulding die is also being updated, and changes into from traditional FMT as some mould and adopts foundry engieering production, and adopt rapid shaping technique and the direct production mould of technique for overlaying.Therefore, need the new hot werk mould steel welding material of exploitation.
Summary of the invention
Because the welding method of existing mold mostly is manual electric arc welding and argon arc welding (TIG), be applicable to the reparation that occurs defective in mould steel manufacturing and the use.And the built-up welding mfg. moulding die requires automatic welding method, and existing mould steel welding material can not satisfy the requirement of automatic surfacing mfg. moulding die.The objective of the invention is to develop a kind of both having fitted and can be used for the mould steel defect repair, can be used for the hot werk mould steel welding material of automatic surfacing mfg. moulding die again.
Above-mentioned purpose of the present invention is achieved in that and adopts new hot werk mould steel welding material alloy system, main failure forms at hot-work die: heat fatigue cracking, wearing and tearing, plastic deformation etc., by optimizing cladding design of alloy, microalloying, rotten processing etc., invent out a kind of novel high-strength toughness, high workload life-span hot werk mould steel welding material.
The technical scheme that adopts is: by adding alloying elements such as Cr, Mo, Ni, V, W, improve red hardness, heat endurance, non-oxidizability, the thermal fatigue resistance of welding deposited metal; By S, the P of control Electroplating welding materials, the addition of elements such as Mn, Si, and iron alloy powders such as adding Ti, RE make the deposited metal grain refinement, harmful elements such as minimizing O, S, P, the obdurability of raising cladding metal and welding region.
The corresponding deposited metal composition scope of New Hot Work Die Steel welding material of the present invention (percentage by weight wt%): C:0.15-0.35; Cr:8.0-11.0; Mo:0.8-1.5; Ni:0.60-0.92; V:0.60-1.05; W:0.20-0.50; Mn:0.20-0.55; Si:0.50-0.85; S :≤0.035; P :≤0.040; Ce:0.001-0.050; Ti:0.005-0.025; B:0.002-0.015.
Welding material product form of the present invention is welding rod and flux-cored wire.Welding rod is applicable to the REPAIR WELDING of the little defective of hot die steel; Flux-cored wire forms by mild-carbon steel strip parcel alloy powder draw on special equipment, is applicable to argon tungsten-arc welding (TIG) and metal argon arc welding (MIG), both can be used for the hot die steel defect repair, also can be used for automatic surfacing and make hot-work die.Common welding requires: 300-400 ℃ of workpiece preheating, be incubated in the welding process, and temper 300-550 ℃ is incubated 2 hours in the postwelding stove.
The corresponding cladding metal of welding material of the present invention is organized as high tempering martensite-bainite heterogeneous structure through the postwelding temper, and hardness HRC is: 35-46, impact flexibility α
kBe (U-shaped notched specimen): 12.3-23.6J/cm2, tensile strength sigma b is: 1082-1326MPa.
Adopt New Hot Work Die Steel flux-cored wire of the present invention to carry out hot die steel argon tungsten-arc welding (TIG) reparation, service life is than T-SKD61 or QRO90 solid core welding wire long 50% with import.
Adopt New Hot Work Die Steel flux-cored wire of the present invention to carry out metal argon arc welding (MIG) and can automatic surfacing make hot-work die.Improve welding efficiency, shorten die manufacturing cycle.
The specific embodiment
Example 1, employing New Hot Work Die Steel surfacing welding of the present invention carry out the five fast gear hot-forging die REPAIR WELDING that the mechanical forging press of 20,000-40,000 KN uses, and welding procedure sees Table 1, repair back ratio in service life D397 welding rod long 220%.Cladding metal ingredient (wt%): C:0.28; Cr:9.6; Mo:1.1; Ni:0.65; V:0.68; W:0.31; Mn:0.42; Si:0.75; S :≤0.035; P :≤0.040; Ce:0.01; Ti:0.015; B:0.010.
Table 1 welding rod bead-welding technology (dc reverse connection)
| Core diameter (mm) | Welding current (A) | Preheat temperature (℃) | The postwelding tempering (℃) | Tempering time (hour) |
| 3.2 | 110 | 350 | 460 | 2 |
Example 2, employing New Hot Work Die Steel flux-cored wire of the present invention carry out five fast gear hot-forging die argon tungsten-arc weldings (TIG) reparation that 20,000-40,000 KN machinery forging press uses, and service life is than the length 50% of the T-SKD61 solid core welding wire of using import.Welding procedure sees Table 2.Cladding metal ingredient (wt%): C:0.32; Cr:10.6; Mo:1.0; Ni:0.65; V:0.82; W:0.38; Mn:0.56; Si:0.85; S :≤0.035; P :≤0.040; Ce:0.009; Ti:0.019; B:0.010.
Table 2TIG bead-welding technology
| Flux-cored wire (mm) | Welding current (A) | Preheat temperature (℃) | The postwelding tempering (℃) | Tempering time (hour) |
| 2.0 | 160 | 400 | 400 | 2 |
Example 3, employing New Hot Work Die Steel flux-cored wire of the present invention carry out five fast gear hot-forging die metal argon arc welding (MIG) the automatic surfacing manufacturings that 20,000-40,000 KN machinery forging press uses, and die manufacturing cycle only is 2 days.Welding procedure sees Table 3.Deposited metal composition (wt%): C:0.35; Cr:10.2; Mo:0.98; Ni:0.67; V:0.89; W:0.43; Mn:0.56; Si:0.75; S :≤0.035; P :≤0.040; Ce:0.008; Ti:0.018; B:0.009.
Table 3MIG bead-welding technology (matrix is 45 steel)
| Flux-cored wire (mm) | Welding current (A) | Preheat temperature (℃) | The postwelding tempering (℃) | Tempering time (hour) |
| 2.0 | 300 | 400 | 480+560 | 2+2 |
Example 4, employing New Hot Work Die Steel surfacing welding of the present invention carry out the five fast gear hot-forging die REPAIR WELDING that the mechanical forging press of 20,000-40,000 KN uses, and welding procedure sees Table 4, repair back ratio in service life D397 welding rod long 200%.Cladding metal ingredient (wt%): C:0.15; Cr:8.0; Mo:0.8; Ni:0.60; V:0.60; W:0.20; Mn:0.20; Si:0.50; S :≤0.035; P :≤0.040; Ce:0.001; Ti:0.005; B:0.002.
Table 4 welding rod bead-welding technology (dc reverse connection)
| Flux-cored wire (mm) | Welding current (A) | Preheat temperature (℃) | The postwelding tempering (℃) | Tempering time (hour) |
| 3.2 | 110 | 350 | 460 | 2 |
Example 5, employing New Hot Work Die Steel flux-cored wire of the present invention carry out five fast gear hot-forging die argon tungsten-arc weldings (TIG) reparation that 20,000-40,000 KN machinery forging press uses, and service life is than the length 70% of the T-SKD61 solid core welding wire of using import.Welding procedure sees Table 5.Cladding metal ingredient (wt%): C:0.35; Cr:11.0; Mo:1.5; Ni:0.92; V:1.05; W:0.50; Mn:0.55; Si:0.85; S :≤0.035; P :≤0.040; Ce:0.050; Ti:0.025; B:0.015.
Table 5TIG bead-welding technology
| Flux-cored wire (mm) | Welding current (A) | Preheat temperature (℃) | The postwelding tempering (℃) | Tempering time (hour) |
| 2.0 | 160 | 400 | 400 | 2 |
Claims (6)
1. hot werk mould steel welding material is characterized in that the chemical composition (wt%) of its deposited metal: C:0.15-0.35; Cr:8.0-11.0; Mo:0.8-1.5; Ni:0.60-0.92; V:0.60-1.05; W:0.20-0.50; Mn:0.20-0.55; Si:0.50-0.85; S :≤0.035; P :≤0.040; Ce:0.001-0.050; Ti:0.005-0.025; B:0.002-0.015.
2. hot werk mould steel welding material according to claim 1 is characterized in that this welding material is a surfacing welding, its cladding metal ingredient (wt%): C:0.32; Cr:10.6; Mo:1.0; Ni:0.65; V:0.82; W:0.38; Mn:0.56; Si:0.85; S :≤0.035; P :≤0.040; Ce:0.009; Ti:0.019; B:0.010.
3. hot werk mould steel welding material according to claim 1 is characterized in that this welding material is a flux-cored wire, its cladding metal ingredient (wt%): C:0.32; Cr:10.6; Mo:1.0; Ni:0.65; V:0.82; W:0.38; Mn:0.56; Si:0.85; S :≤0.035; P :≤0.040; Ce:0.009; Ti:0.019; B:0.010.
4. hot werk mould steel welding material according to claim 1 is characterized in that this welding material is a flux-cored wire, its deposited metal composition (wt%): C:0.35; Cr:10.2; Mo:0.98; Ni:0.67; V:0.89; W:0.43; Mn:0.56; Si:0.75; S :≤0.035; P :≤0.040; Ce:0.008; Ti:0.018; B:0.009.
5. hot werk mould steel welding material according to claim 1 is characterized in that this welding material is a surfacing welding, its cladding metal ingredient (wt%): C:0.15; Cr:8.0; Mo:0.8; Ni:0.60; V:0.60; W:0.20; Mn:0.20; Si:0.50; S :≤0.035; P :≤0.040; Ce:0.001; Ti:0.005; B:0.002.
6. hot werk mould steel welding material according to claim 1 is characterized in that this welding material is a flux-cored wire, its cladding metal ingredient (wt%): C:0.35; Cr:11.0; Mo:1.5; Ni:0.92; V:1.05; W:0.50; Mn:0.55; Si:0.85; S :≤0.035; P :≤0.040; Ce:0.050; Ti:0.025; B:0.015.
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| CNB2005100170338A CN100389926C (en) | 2005-08-08 | 2005-08-08 | Hot werk mould steel welding material |
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| CNB2005100170338A CN100389926C (en) | 2005-08-08 | 2005-08-08 | Hot werk mould steel welding material |
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| CN100389926C true CN100389926C (en) | 2008-05-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862194B (en) * | 2014-03-20 | 2016-11-02 | 北京工业大学 | A kind of flux-cored wire repaired for hot forged mould |
| CN110802230A (en) * | 2019-11-05 | 2020-02-18 | 上海欣冈贸易有限公司 | Bridging welding method |
| CN113547251B (en) * | 2021-06-25 | 2022-02-22 | 广东省科学院中乌焊接研究所 | Wire material suitable for hot forging die arc fuse wire additive manufacturing and preparation method thereof |
| CN114043041A (en) * | 2021-12-13 | 2022-02-15 | 佛山市南海奔达模具有限公司 | Welding process suitable for H13 steelwork |
| CN114571031A (en) * | 2022-04-12 | 2022-06-03 | 福建鼎信科技有限公司 | 430 stainless steel hot-rolled conveying roller and surfacing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489648A1 (en) * | 1990-12-04 | 1992-06-10 | Tecphy | Stainless steel usable for applying a hard facing to hot-work tools and tools provided with a hard facing made from this stainless steel |
| CN1156077A (en) * | 1996-01-31 | 1997-08-06 | 完卫国 | Surfacing welding electrode for heat work mould |
| CN1160619A (en) * | 1996-03-25 | 1997-10-01 | 吕家琈 | Bead welding wire for welding hot-work die |
| JPH1177375A (en) * | 1997-06-24 | 1999-03-23 | Toyota Motor Corp | Cobalt base alloy for cladding hot forging die by welding |
| CN1340397A (en) * | 2000-08-30 | 2002-03-20 | 陈素荣 | Welding electrode for build-up welding and its usage |
-
2005
- 2005-08-08 CN CNB2005100170338A patent/CN100389926C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489648A1 (en) * | 1990-12-04 | 1992-06-10 | Tecphy | Stainless steel usable for applying a hard facing to hot-work tools and tools provided with a hard facing made from this stainless steel |
| CN1156077A (en) * | 1996-01-31 | 1997-08-06 | 完卫国 | Surfacing welding electrode for heat work mould |
| CN1160619A (en) * | 1996-03-25 | 1997-10-01 | 吕家琈 | Bead welding wire for welding hot-work die |
| JPH1177375A (en) * | 1997-06-24 | 1999-03-23 | Toyota Motor Corp | Cobalt base alloy for cladding hot forging die by welding |
| CN1340397A (en) * | 2000-08-30 | 2002-03-20 | 陈素荣 | Welding electrode for build-up welding and its usage |
Non-Patent Citations (4)
| Title |
|---|
| 5CrMnMo热锻模具钢堆焊材料的应用及工艺. 赵广裕.一重技术，第4期. 2002 |
| 5CrMnMo热锻模具钢堆焊材料的应用及工艺. 赵广裕.一重技术，第4期. 2002 * |
| 热作模具钢堆焊焊条的研制. 刘耀东，王辉，聂发明.电焊机，第35卷第3期. 2005 |
| 热作模具钢堆焊焊条的研制. 刘耀东，王辉，聂发明.电焊机，第35卷第3期. 2005 * |
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Assignee: Changchun Engley Automobile Parts Co., Ltd. Assignor: Jilin University Contract fulfillment period: 2009.5.8 to 2015.5.7 contract change Contract record no.: 2009220000066 Denomination of invention: Hot werk mould steel welding material Granted publication date: 20080528 License type: Exclusive license Record date: 2009.9.4 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.8 TO 2015.5.7; CHANGE OF CONTRACT Name of requester: CHANGCHUN YINGLI AUTOMOBILE PARTS CO., LTD. Effective date: 20090904 |
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