CN103192160A - Repair welding method of large area die steel - Google Patents
Repair welding method of large area die steel Download PDFInfo
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- CN103192160A CN103192160A CN2013100996770A CN201310099677A CN103192160A CN 103192160 A CN103192160 A CN 103192160A CN 2013100996770 A CN2013100996770 A CN 2013100996770A CN 201310099677 A CN201310099677 A CN 201310099677A CN 103192160 A CN103192160 A CN 103192160A
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- welding
- repair
- clay
- repair welding
- mould steel
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Abstract
The invention provides a repair welding method of large area die steel. The repair welding method of the large area die steel comprises selecting common wet clay with large stickiness and small particles; uniformly pasting well mixed clay on the periphery of positions need to be welded and reserving repair welding positions;, welding the periphery firstly when performing repair welding and performing surfacing inward after the clay dries up; accomplishing the surfacing and removing surrounding clay after the positions to be welded are cooled down and solidified; and obtaining a machining size after polishing of unnecessary portions of the welding positions. The repair welding method of the large area die steel has the advantage of avoiding explosion no matter how large the repair welded die steel area is due to the facts that the reasons of explosion are that temperature change is rapid and temperature differences are large between internal tissues of inserts and the clay has a function of heat retaining on the inserts and insulates air at the same time; and the welding in a ring type has the function of reconstructing the clay, so that welding fluid can just flow in a limited range, other positions of the inserts are avoided to be damaged and reprocessing amount is reduced.
Description
Technical field
The present invention relates to welding technology field, refer to a kind of large tracts of land mould steel repair method especially.
Background technology
During modern industry is produced, the utilization of mould steel more and more widely, inserting of mould steel belongs to consumable accessory, needs repair by welding often.And repair welding generally is applicable to air cooling steel or cast iron as a kind of common method of repairing diel, is rarely used in mould steel (for example SKD11, Cr12MoV etc.), because this type of mould steel bursts in welding process easily, to temperature and sensitivity thereof.Weld this type of die insert and generally adopt and cooperate the holding furnace welding, but can not have this kind equipment as general die making shop, can only cooperation processing, can cause problems such as the higher and production cycle prolongation of cost.
Summary of the invention
The present invention proposes a kind of large tracts of land mould steel repair method, can realize that the mould steel class that repair welding is whenever and wherever possible wanted to repair inserts.
Technical scheme of the present invention is achieved in that a kind of large tracts of land mould steel repair method,
Comprise following concrete steps:
A. it is bigger to choose viscosity, the common wet earth that particle is less;
B. the earth that will become reconciled evenly stick on the position that needs repair welding around, the repair welding position is reserved;
C. carry out repair welding, local around elder generation's weldering during repair welding, treat the dry built-up welding inward more later on of earth;
D. built-up welding is finished, the earth around removing after the cooled and solidified of position to be welded;
F. the polish redundance of weld reaches processing dimension.
As preferably, adopt dc arc welding machine, regulate welding parameter in advance, electric current adopts 80-100A.
As preferably, described arc welder adopts stainless steel electrode, and can with the SKD11 of mould steel, match materials such as Cr12MoV.
As preferably, described wet mud particles diameter＜0.01MM.
As preferably, adopt the redundance of angle grinding machine polishing weld.
Compared with prior art, the invention has the advantages that: adopt this method no matter the mould steel area of repair welding has much, substantially can not burst, its reason has: the reason that 1, bursts is to insert, and variations in temperature is fast between interior tissue, the temperature difference is big, and earth itself also has the effect of insulation to inserting in secluding air.2, boxing position earth has moulding effect, and welding fluid can only be flowed in limited scope, guarantees not injure other parts of inserting, and reduces the reprocessing amount.
The specific embodiment
To the technical scheme in the embodiment of the invention be clearly and completely described below, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiment: a kind of large tracts of land mould steel repair method,
Comprise following concrete steps:
A. it is bigger to choose viscosity, the common wet earth that particle is less;
B. the earth that will become reconciled evenly stick on the position that needs repair welding around, the repair welding position is reserved;
C. carry out repair welding, local around elder generation's weldering during repair welding, treat the dry built-up welding inward more later on of earth;
D. built-up welding is finished, the earth around removing after the cooled and solidified of position to be welded;
F. the polish redundance of weld reaches processing dimension.
As preferably, adopt dc arc welding machine, regulate welding parameter in advance, electric current adopts 80-100A.
As preferably, described arc welder adopts stainless steel electrode, and can with the SKD11 of mould steel, match materials such as Cr12MoV.
As preferably, described wet mud particles diameter＜0.01MM.
As preferably, adopt the redundance of angle grinding machine polishing weld.
Compared with prior art, the invention has the advantages that: adopt this method no matter the mould steel area of repair welding has much, substantially can not burst, its reason has: the reason that 1, bursts is to insert, and variations in temperature is fast between interior tissue, the temperature difference is big, and earth itself also has the effect of insulation to inserting in secluding air.2, boxing position earth has moulding effect, and welding fluid can only be flowed in limited scope, guarantees not injure other parts of inserting, and reduces the reprocessing amount.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. large tracts of land mould steel repair method is characterized in that:
Comprise following concrete steps:
A. it is bigger to choose viscosity, the common wet earth that particle is less;
B. the earth that will become reconciled evenly stick on the position that needs repair welding around, the repair welding position is reserved;
C. carry out repair welding, local around elder generation's weldering during repair welding, treat the dry built-up welding inward more later on of earth;
D. built-up welding is finished, the earth around removing after the cooled and solidified of position to be welded;
F. remove the redundance of weld, reach processing dimension.
2. a kind of large tracts of land mould steel repair method according to claim 1 is characterized in that: adopt dc arc welding machine, regulate welding parameter in advance, electric current employing 80-100A.
3. a kind of large tracts of land mould steel repair method according to claim 2 is characterized in that: described arc welder adopts stainless steel electrode, and can with the SKD11 of mould steel, match materials such as Cr12MoV.
4. a kind of large tracts of land mould steel repair method according to claim 1 is characterized in that: described wet mud particles diameter＜0.01MM.
5. a kind of large tracts of land mould steel repair method according to claim 1 is characterized in that: adopt the angle grinding machine, perhaps the redundance of milling machine removing weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100996770A CN103192160A (en) | 2013-03-26 | 2013-03-26 | Repair welding method of large area die steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100996770A CN103192160A (en) | 2013-03-26 | 2013-03-26 | Repair welding method of large area die steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103192160A true CN103192160A (en) | 2013-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100996770A Pending CN103192160A (en) | 2013-03-26 | 2013-03-26 | Repair welding method of large area die steel |
Country Status (1)
| Country | Link |
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| CN (1) | CN103192160A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209639A (en) * | 2014-08-21 | 2014-12-17 | 成都航天万欣科技有限公司 | Mold cutting edge repair welding process |
| CN104827171A (en) * | 2015-03-20 | 2015-08-12 | 马鞍山市百源机械有限公司 | Surface overlaying method of foot roll of continuous casting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1549699A (en) * | 1966-12-16 | 1968-12-13 | ||
| DD257931A3 (en) * | 1985-09-30 | 1988-07-06 | Zentralinstitut Schweiss | TWO LAYER push fitting |
| CN1066015A (en) * | 1992-03-23 | 1992-11-11 | 武汉钢铁公司 | The fast welding method of ironcasting |
| CN101497145A (en) * | 2009-02-24 | 2009-08-05 | 联伟汽车零部件(重庆)有限公司 | Repairing welding method for crack of Cr12MoV steel mold |
| CN101733512A (en) * | 2009-11-26 | 2010-06-16 | 上海大学 | Method for quick repair welding, restoring and reproducing of high-alloy cold-working mould |
-
2013
- 2013-03-26 CN CN2013100996770A patent/CN103192160A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1549699A (en) * | 1966-12-16 | 1968-12-13 | ||
| DD257931A3 (en) * | 1985-09-30 | 1988-07-06 | Zentralinstitut Schweiss | TWO LAYER push fitting |
| CN1066015A (en) * | 1992-03-23 | 1992-11-11 | 武汉钢铁公司 | The fast welding method of ironcasting |
| CN101497145A (en) * | 2009-02-24 | 2009-08-05 | 联伟汽车零部件(重庆)有限公司 | Repairing welding method for crack of Cr12MoV steel mold |
| CN101733512A (en) * | 2009-11-26 | 2010-06-16 | 上海大学 | Method for quick repair welding, restoring and reproducing of high-alloy cold-working mould |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209639A (en) * | 2014-08-21 | 2014-12-17 | 成都航天万欣科技有限公司 | Mold cutting edge repair welding process |
| CN104827171A (en) * | 2015-03-20 | 2015-08-12 | 马鞍山市百源机械有限公司 | Surface overlaying method of foot roll of continuous casting machine |
| CN104827171B (en) * | 2015-03-20 | 2017-01-25 | 马鞍山市百源机械有限公司 | Surface overlaying method of foot roll of continuous casting machine |
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Application publication date: 20130710 |