CN107855725A - The repair method of cast iron end-sealing die - Google Patents
The repair method of cast iron end-sealing die Download PDFInfo
- Publication number
- CN107855725A CN107855725A CN201711045991.5A CN201711045991A CN107855725A CN 107855725 A CN107855725 A CN 107855725A CN 201711045991 A CN201711045991 A CN 201711045991A CN 107855725 A CN107855725 A CN 107855725A
- Authority
- CN
- China
- Prior art keywords
- crackle
- groove
- blind hole
- bail
- cast iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a kind of repair method of cast iron end-sealing die, it is related to machinery manufacturing technology field；Comprise the following steps：The end-sealing die for having crackle is subjected to cleaning degreasing and drying in breaking part；V-shape groove is polished along crack orientation, in the beginning and end position holes drilled through of crackle, some grooves perpendicular to crackle are outputed on the both sides of crackle, drilling blind hole is distinguished in the groove, blind hole drills through in pairs, is distributed in the both sides of crackle, make the bail of some stapler needle-like shapes, bail is inserted in blind hole, sealing weld is carried out to the V-shape groove, through hole, groove with welding rod, until filling up；All weld seams of cracks polish to smooth.The present invention can be solved the problems, such as after current cast iron end-sealing die weld line using crackle still occurs after a period of time.
Description
Technical field
The present invention relates to machinery manufacturing technology field, especially a kind of repair method of cast iron end-sealing die.
Background technology
End socket is one of important spare part of pressure vessel, and its shape typically has flat head and ellipse head, its diameter from
Hundreds of millimeters to several meters, due to the architectural feature of end socket, the mould of pressing seal head is mostly cylinder iron material manufacture, common
End-sealing die material such as HT200, the mechanical property of this material is close to steel, but phosphorus content is higher, and the impurity such as S, P is also high；
Pressing seal head reach certain amount when, crackle occurs in end-sealing die, and if mould it is cracked without repairing, can not
Produce qualified end socket product cost；At present, the method for repairing and mending of cast iron end-sealing die crackle in the art is usually：It will first split
Groove is polished at line, groove position is preheated, then cylinder iron welding rod is filled weldering to groove, and filling is full in groove
After welding material, then by weld grinding；The repair method of this crackle can only extend die life for a period of time, mould pressure
End socket processed still new crackle can occur, it is necessary to repair again after for a period of time in the beginning or end of crackle, can thus influence
Normal production.
The content of the invention
It is an object of the invention to provide a kind of repair method of cast iron end-sealing die, and it can solve current end-sealing die and split
The problem of after line repair welding using crackle still occurs after a period of time.
In order to solve the above problems, the technical solution adopted by the present invention is：The repair method of this cast iron end-sealing die, bag
Include following steps：
A, the end-sealing die for having crackle is carried out in breaking part cleaning degreasing and drying；
B, V-shape groove is polished along crack orientation, the angle of V-shape groove section is 55 ° ~ 65 °, and groove depth exceedes crackle
Depth；
C, in the beginning and end position holes drilled through of crackle, the through-hole diameter is 15 ~ 25mm；
D, output some grooves perpendicular to crackle on the both sides of crackle, the groove length across crackle, its width is 15 ~
25mm, its depth exceed the half of crack depth；
E, drilling blind hole is distinguished in the groove, the blind hole drills through in pairs, is distributed in the both sides of crackle, the blind hole is with crackle
For line of symmetry；
F, the bail of some stapler needle-like shapes is made, the distance of two nail pins of the bail is equal to the pitch-row of the blind hole,
The length of two nail pins of the bail is less than the hole depth of the blind hole；
G, the bail is inserted in the blind hole, and it is urgent；
H, weldering is filled to the Delta Region of the V-shape groove bottom with welding rod, often fills one layer and remove welding rod with hand hammer
Coating, until fill and lead up to the groove baseplane；
I, sealing weld is carried out to the through hole with welding rod, until filling up；
J, weldering is filled to the groove with welding rod, until filling up the groove；
K, weldering is filled to the V-shape groove remainder with welding rod, until filling up；
L, all weld seams of cracks are polished to smooth.
In above technical scheme, further scheme can be：The electrode for cast iron is E47N electrode for cast irons.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
1st, the present invention slots on crackle both sides and punched, and in crackle starting point and end points holes drilled through, is squeezed into the bail of staple shape
In hole, crackle both sides are held, then carry out subsection filling weldering；During welding, the Delta Region of first sealing weld V-shape bottom, then sealing weld are led to
Hole, then sealing weld groove, the remainder of last sealing weld V-shape groove；
2nd, this repair method of the present invention can improve the intensity of mend, greatly prolong the service life of cast iron end-sealing die.
Brief description of the drawings
Fig. 1 is the front view of the present invention.
Fig. 2 is the top view of the present invention.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples：
Embodiment 1：
The repair method of this cast iron end-sealing die as shown in Fig. 1 ~ Fig. 2,
A, the end-sealing die 1 for having crackle 5 is carried out in breaking part cleaning degreasing and drying；
B, V-shape groove 4 is polished along crack orientation, the angle of the cross section of V-shape groove 4 is 55 °, and groove depth, which exceedes, to be split
Line depth；
C, in the beginning and end position holes drilled through of crackle 1, through-hole diameter is 15 ~ 25mm；
D, some grooves 2 perpendicular to crackle are outputed on the both sides of crackle 1, the length of groove 2 is across crackle 1, its width
15mm, its depth exceed the half of crack depth；
E, drilling blind hole 6, blind hole 6 drill through in pairs respectively in groove 2, are distributed in the both sides of crackle 1, blind hole 6 is symmetrical with crackle 1
Line；
F, the bail 3 of some stapler needle-like shapes is made, the distance of two nail pins of bail 3 is equal to the pitch-row of blind hole 6, bail 3
Two nail pins length be less than blind hole hole depth；
G, bail 3 is inserted in blind hole 6, and it is urgent；
H, cylinder iron welding rod E47N is filled weldering to the Delta Region of the bottom of V-shape groove 4, and often one layer of filling is clear with hand hammer
Except covering of an electrode, until filling and leading up to the baseplane of groove 2；
I, cylinder iron welding rod E47N carries out sealing weld to through hole 6, until filling up；
J, cylinder iron welding rod E47N is filled weldering to groove 2, until filling up groove 2；
K, cylinder iron welding rod E47N is filled weldering to the remainder of V-shape groove 4, until filling up；
L, polishing at crackle 1 has weld seam to smooth.
Embodiment 2：
The repair method of this cast iron end-sealing die as shown in Fig. 1 ~ Fig. 2,
A, the end-sealing die 1 for having crackle 5 is carried out in breaking part cleaning degreasing and drying；
B, V-shape groove 4 is polished along crack orientation, the angle of the cross section of V-shape groove 4 is 65 °, and groove depth, which exceedes, to be split
Line depth；
C, in the beginning and end position holes drilled through of crackle 1, through-hole diameter 25mm；
D, some grooves 2 perpendicular to crackle are outputed on the both sides of crackle 1, the length of groove 2 is across crackle 1, its width
25mm, its depth exceed the half of crack depth；
E, drilling blind hole 6, blind hole 6 drill through in pairs respectively in groove 2, are distributed in the both sides of crackle 1, blind hole 6 is symmetrical with crackle 1
Line；
F, the bail 3 of some stapler needle-like shapes is made, the distance of two nail pins of bail 3 is equal to the pitch-row of blind hole 6, bail 3
Two nail pins length be less than blind hole hole depth；
G, bail 3 is inserted in blind hole 6, and it is urgent；
H, cylinder iron welding rod E47N is filled weldering to the Delta Region of the bottom of V-shape groove 4, and often one layer of filling is clear with hand hammer
Except covering of an electrode, until filling and leading up to the baseplane of groove 2；
I, cylinder iron welding rod E47N carries out sealing weld to through hole 6, until filling up；
J, cylinder iron welding rod E47N is filled weldering to groove 2, until filling up groove 2；
K, cylinder iron welding rod E47N is filled weldering to the remainder of V-shape groove 4, until filling up；
L, polishing at crackle 1 has weld seam to smooth.
Embodiment 3：
The repair method of this cast iron end-sealing die as shown in Fig. 1 ~ Fig. 2,
A, the end-sealing die 1 for having crackle 5 is carried out in breaking part cleaning degreasing and drying；
B, V-shape groove 4 is polished along crack orientation, the angle of the cross section of V-shape groove 4 is 60 °, and groove depth, which exceedes, to be split
Line depth；
C, in the beginning and end position holes drilled through of crackle 1, through-hole diameter 20mm；
D, some grooves 2 perpendicular to crackle are outputed on the both sides of crackle 1, the length of groove 2 is across crackle 1, its width
20mm, its depth exceed the half of crack depth；
E, drilling blind hole 6, blind hole 6 drill through in pairs respectively in groove 2, are distributed in the both sides of crackle 1, blind hole 6 is symmetrical with crackle 1
Line；
F, the bail 3 of some stapler needle-like shapes is made, the distance of two nail pins of bail 3 is equal to the pitch-row of blind hole 6, bail 3
Two nail pins length be less than blind hole hole depth；
G, bail 3 is inserted in blind hole 6, and it is urgent；
H, cylinder iron welding rod E47N is filled weldering to the Delta Region of the bottom of V-shape groove 4, and often one layer of filling is clear with hand hammer
Except covering of an electrode, until filling and leading up to the baseplane of groove 2；
I, cylinder iron welding rod E47N carries out sealing weld to through hole 6, until filling up；
J, cylinder iron welding rod E47N is filled weldering to groove 2, until filling up groove 2；
K, cylinder iron welding rod E47N is filled weldering to the remainder of V-shape groove 4, until filling up；
L, polishing at crackle 1 has weld seam to smooth.
Claims (2)
- A kind of 1. repair method of cast iron end-sealing die, it is characterised in that：Comprise the following steps：A, the end-sealing die for having crackle is carried out in breaking part cleaning degreasing and drying；B, V-shape groove is polished along crack orientation, the angle of V-shape groove section is 55 ° ~ 65 °, and groove depth exceedes crackle Depth；C, in the beginning and end position holes drilled through of crackle, the through-hole diameter is 15 ~ 25mm；D, output some grooves perpendicular to crackle on the both sides of crackle, the groove length across crackle, its width is 15 ~ 25mm, its depth exceed the half of crack depth；E, drilling blind hole is distinguished in the groove, the blind hole drills through in pairs, is distributed in the both sides of crackle, the blind hole is with crackle For line of symmetry；F, the bail of some stapler needle-like shapes is made, the distance of two nail pins of the bail is equal to the pitch-row of the blind hole, The length of two nail pins of the bail is less than the hole depth of the blind hole；G, the bail is inserted in the blind hole, and it is urgent；H, weldering is filled to the Delta Region of the V-shape groove bottom with welding rod, often fills one layer and remove welding rod with hand hammer Coating, until fill and lead up to the groove baseplane；I, sealing weld is carried out to the through hole with welding rod, until filling up；J, weldering is filled to the groove with welding rod, until filling up the groove；K, weldering is filled to the V-shape groove remainder with welding rod, until filling up；L, all weld seams of cracks are polished to smooth.
- 2. the repair method of cast iron end-sealing die according to claim 1, it is characterised in that：The electrode for cast iron is E47N Electrode for cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045991.5A CN107855725A (en) | 2017-10-31 | 2017-10-31 | The repair method of cast iron end-sealing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045991.5A CN107855725A (en) | 2017-10-31 | 2017-10-31 | The repair method of cast iron end-sealing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107855725A true CN107855725A (en) | 2018-03-30 |
Family
ID=61698035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045991.5A Withdrawn CN107855725A (en) | 2017-10-31 | 2017-10-31 | The repair method of cast iron end-sealing die |
Country Status (1)
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|---|---|
| CN (1) | CN107855725A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405375A (en) * | 2019-08-06 | 2019-11-05 | 攀钢集团工程技术有限公司 | The method of double transition zone REPAIR WELDING residual crackles |
| CN110508995A (en) * | 2019-08-26 | 2019-11-29 | 共享装备股份有限公司 | The restorative procedure of ironcasting cracking |
| CN112475548A (en) * | 2020-11-20 | 2021-03-12 | 西安热工研究院有限公司 | Gas turbine high temperature part crack damage welding repair structure |
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| US577155A (en) * | 1897-02-16 | braggeb | ||
| SU1009688A1 (en) * | 1981-09-09 | 1983-04-07 | Дрогобычское Проектно-Конструкторское И Технологическое Бюро Всесоюзного Промышленного Объединения "Союзгазмашремонт" Министерства Газовой Промышленности Ссср | Shaped insert for repair of cracked parts |
| SU1303353A1 (en) * | 1985-05-22 | 1987-04-15 | Всесоюзный Научно-Исследовательский Технологический Институт Восстановления Изношенных Деталей Машин | Insert for repairing cracked parts |
| SU1540998A2 (en) * | 1988-05-10 | 1990-02-07 | Специальное Проектно-Конструкторское И Технологическое Бюро С Опытным Производством Всесоюзного Промышленного Объединения Ремонтных И Машиностроительных Предприятий "Союзлесреммаш" | Shaped insert for press-fitting in repair of cracks in parts |
| SU1567348A1 (en) * | 1988-06-30 | 1990-05-30 | Специальное Проектно-Конструкторское Технологическое Бюро С Опытным Производством Всесоюзного Промышленного Объединения Ремонтных И Машиностроительных Предприятий | Method of repairing articles having cracks |
| CN1915580A (en) * | 2006-09-11 | 2007-02-21 | 李昌勋 | Method for repairing cracks on arcwall face of metalwork |
| US20070050963A1 (en) * | 2005-08-24 | 2007-03-08 | Keller Jeffrey S | Method for repairing structural cracks |
| CN101053926A (en) * | 2007-05-31 | 2007-10-17 | 四川东风电机厂有限公司 | Axial-flow rotary propeller type water turbine runner blade crackle treating method |
| CN101972913A (en) * | 2010-11-08 | 2011-02-16 | 常熟市普利擎汽车维修保养有限公司 | Process for repairing crack on engine oil pipeline of automobile cylinder body |
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2017
- 2017-10-31 CN CN201711045991.5A patent/CN107855725A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US577155A (en) * | 1897-02-16 | braggeb | ||
| SU1009688A1 (en) * | 1981-09-09 | 1983-04-07 | Дрогобычское Проектно-Конструкторское И Технологическое Бюро Всесоюзного Промышленного Объединения "Союзгазмашремонт" Министерства Газовой Промышленности Ссср | Shaped insert for repair of cracked parts |
| SU1303353A1 (en) * | 1985-05-22 | 1987-04-15 | Всесоюзный Научно-Исследовательский Технологический Институт Восстановления Изношенных Деталей Машин | Insert for repairing cracked parts |
| SU1540998A2 (en) * | 1988-05-10 | 1990-02-07 | Специальное Проектно-Конструкторское И Технологическое Бюро С Опытным Производством Всесоюзного Промышленного Объединения Ремонтных И Машиностроительных Предприятий "Союзлесреммаш" | Shaped insert for press-fitting in repair of cracks in parts |
| SU1567348A1 (en) * | 1988-06-30 | 1990-05-30 | Специальное Проектно-Конструкторское Технологическое Бюро С Опытным Производством Всесоюзного Промышленного Объединения Ремонтных И Машиностроительных Предприятий | Method of repairing articles having cracks |
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| CN1915580A (en) * | 2006-09-11 | 2007-02-21 | 李昌勋 | Method for repairing cracks on arcwall face of metalwork |
| CN101053926A (en) * | 2007-05-31 | 2007-10-17 | 四川东风电机厂有限公司 | Axial-flow rotary propeller type water turbine runner blade crackle treating method |
| CN101972913A (en) * | 2010-11-08 | 2011-02-16 | 常熟市普利擎汽车维修保养有限公司 | Process for repairing crack on engine oil pipeline of automobile cylinder body |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405375A (en) * | 2019-08-06 | 2019-11-05 | 攀钢集团工程技术有限公司 | The method of double transition zone REPAIR WELDING residual crackles |
| CN110405375B (en) * | 2019-08-06 | 2021-08-24 | 攀钢集团工程技术有限公司 | Method for repairing residual cracks by welding double transition layers |
| CN110508995A (en) * | 2019-08-26 | 2019-11-29 | 共享装备股份有限公司 | The restorative procedure of ironcasting cracking |
| CN112475548A (en) * | 2020-11-20 | 2021-03-12 | 西安热工研究院有限公司 | Gas turbine high temperature part crack damage welding repair structure |
| CN112475548B (en) * | 2020-11-20 | 2024-01-23 | 西安热工研究院有限公司 | Crack damage welding repair structure for high-temperature part of gas turbine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180330 |