CN1207126C - Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine - Google Patents
Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine Download PDFInfo
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- CN1207126C CN1207126C CN 02157332 CN02157332A CN1207126C CN 1207126 C CN1207126 C CN 1207126C CN 02157332 CN02157332 CN 02157332 CN 02157332 A CN02157332 A CN 02157332A CN 1207126 C CN1207126 C CN 1207126C
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Abstract
The present invention relates to a build-up welding and repairing method for a gear and a shaft of an oil pumping machine, particularly to a build-up welding and repairing method for a gear and a shaft of an oil pumping machine in an oil field. The present invention solves the problems of complicated technology, unqualified physical-chemical performance of repaired parts, and difficult mechanical process for the repaired parts in the existing repairing method. The build-up welding and repairing method has the following steps: 1, cleaning and preheating; 2, a transition layer, wear resistant layer and a processing layer are respectively welded through build-up welding on the surface of the damaged part of a component in a superposition welding method by adopting three kinds of welding sticks; 3, the component which is repaired by build-up welding is cooled at the speed of 200 to 300 DEG C. per hour at the room temperature; 4, mechanical processing. The repairing method of the present invention is suitable for repairing and processing gears and shafts of oil pumping machines made of 45<#> cast steel and 35CrMo alloy steel. The present invention also has the advantages of simple technology, convenient operation and low cost. The repaired part which is suitable for the requirements of a working environment has the advantages, the service life is longer than that of the original part, and the repairing cost is 60% of the price of a new part.
Description
Technical field: what the present invention relates to is the built-up welding repairing method of oil-field oil pumper gear and axle.
Background technology: in the oil field, oil pumper is to turn round in the open, and temperature in four seasons changes greatly, and in use its gear and axle are often played tooth, wearing and tearing because of burn into impact, fatigue, overload cause, and gearbox body also can crack.Conventional gear welding repair method has the gas shielded arc welding method and with the manual build up welding method of standard welding rod, these methods can not adapt to the characteristics of oil pumper low-speed running, have the following disadvantages in actual applications: the one, renovation technique is loaded down with trivial details, and it is big to implement difficulty, the cost height; The 2nd, the physical and chemical performance of repairing the back part does not reach instructions for use, and is not low temperature resistant, not shock-resistant, not corrosion-resistant, not wear-resistant; The 3rd, the part after repairing is difficult to carry out machining, also will heat-treat technology after the part reparation that has.
Summary of the invention: the present invention develops the build-up welding repair method of a kind of oil pumper gear and axle, and it has solved complex process that existing restorative procedure exists, the part physical and chemical performance after repairing does not reach the problem that part after requirements, the reparation is difficult to carry out machining.The build-up welding repair method of a kind of oil pumper gear of the present invention and axle carries out as follows: one, treat the remanufactured component surface and clear up, and carry out The pre-heat treatment, preheat temperature is 500 ℃～800 ℃, does oven dry row hydrogen and prepares repair welding; Two, the method for welding with stack on the surface at parts damages position adopts three kinds of welding rods built-up welding transition zone, wearing layer and machined layer successively; The layer thickness of transition zone is 1～5mm, and welding current is 90～120 amperes, and the Brinell hardness of layer is HB160～180; The welding temperature of wearing layer is 750 ℃～900 ℃, and layer thickness is 4～8mm, and welding current is 90～120 amperes, and the Brinell hardness of layer is HB250～260; The welding temperature of machined layer is 750 ℃～900 ℃, and layer thickness is 2～4mm, and welding current is 90～120 amperes, and the Brinell hardness of layer is HB180～210; Three, the parts that built-up welding is repaired are at room temperature lowered the temperature with per hour 200 ℃～300 ℃ speed; Four, parts are carried out machining, until dimensional standard.In second step, when welding each overlay cladding, according to thickness weldering one time or several times, each is all over being to be formed by some superimposed welding beads all, and new welding bead will cover the width of last welding bead 1/3, can make temperature reasonable like this, and the amalgamation of built-up welding is good.The parts that built-up welding is repaired are lower than 16 ℃ as room temperature when cooling, need to cover cooling with the aluminium silicate salt cotton.The effect of this process is to prevent crackle, gains in strength, and discharges stress, guarantees that the parts of REPAIR WELDING reach instructions for use, and is easy to processing.When the built-up welding transition zone, the core wire of used welding rod is the 08E iron core, core wire is 64%～66% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 35～39, fluorite 23～27, quartz 3.5～4.5, synthetic rutile 3.5～4.5, ferrotianium 8～9, molybdenum-iron 2～2.5, vanadium iron 0.25～0.35, ferromanganese 4～5,45
#Ferrosilicon 3～4, ferrochrome 2.5～3.4, nickel powder 0.3～0.4, chalk 1.5～2, iron powder 5.5～6, alkali 0.6～0.69, potassium-sodium water glass 0.02～7; When the build-up wear-resistant layer, the core wire of used welding rod is the 08A iron core, core wire is 62%～64% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 33～37, fluorite 23～26, quartz 4～4.5, feldspar 2.5～3, mica 1.2～1.6, ferrochrome 3.2～3.8, ferromanganese 5～6,45
#Ferrosilicon 4～4.5, molybdenum-iron 2.5～3, vanadium iron 0.4～0.45, tungsten powder 0.25～0.3, nickel powder 0.4～0.45, synthetic rutile 4.5～5, ferrotianium 9.5～10, alkali 0.75～0.80, potassium-sodium water glass 0.02～5.8; When the built-up welding machined layer, the core wire of used welding rod is the 08E iron core, core wire is 64%～66% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 43～47, fluorite 19～21, quartz 4～5, feldspar 2.5～3, mica 1.6～2, ferrochrome 2.5～3, ferromanganese 9～9.5, molybdenum-iron 5.2～5.8,45
#Ferrosilicon 3.8～4.2, synthetic rutile 2.8～3.2, alkali 0.86～0.98, potassium-sodium water glass 0.02～5.7; CaCO in the wherein said marble
3〉=96%, the CaF in the fluorite
2〉=98%, the SiO in the quartz
2〉=98%, the TiO in the synthetic rutile
2〉=90%, the Ti in the ferrotianium 〉=27%, the Mo in the molybdenum-iron 〉=50%, the V in the vanadium iron 〉=50%, the Mn in the ferromanganese 〉=72%, 45
#Si in the ferrosilicon 〉=45%, the Cr in the ferrochrome 〉=40%, the Ni in the nickel powder 〉=98%, the CaO in the chalk 〉=17%, MgO 〉=22%, SiO
2〉=32%, Al
2O
3〉=4%, P≤0.02%, S≤0.02%, the Fe in the iron powder 〉=98%, alkali are anhydrous Na
2CO
3, the modulus of potassium-sodium water glass is that 2.6～3.0M, Baume concentration are 46～49Be, the CaO in the feldspar 〉=62%, K
2O
2And Na
2O 〉=12%, Al
2O
3〉=24%, P≤0.02%, S≤0.02%, the SiO in the mica
2〉=43%, Al
2O
3〉=35%, K
2O and Na
2O 〉=7%, the W in the tungsten powder 〉=96%.The diameter of the core wire of used welding rod is 3.2mm or 4.0mm when above welding transition layer, wearing layer and machined layer.Heat affected area when above-mentioned welding process is all welded previous welding accumulation horizon as following one deck, the comfort zone of the new welding heat affected zone that built-up welding is produced is superimposed upon on the hard component of the heat affected area that the welding bead of previous accumulation forms, thereby the tempering that forms is to a certain degree back and forth welded, and the metallographic bainite structure in this heat affected area can not changed because of lowering the temperature rapidly.The present invention has avoided the heat treatment after the welding, and the physical and chemical performance of repairing the back part is improved and strengthens.Restorative procedure of the present invention is suitable for 45
#Oil-pumping machine gear that cast steel and 35CrMo steel alloy are made and axle, the characteristics of its transition zone are: bath is big and dark, merges with mother metal, and improved the adhesive force of later weld layer and base material, the tissue of transition zone generates pearlite＜10%, is to wait a columnar ferrite, and grain size reaches 6 grades; Its wearing layer has increased Mn, V, Ni, Cr, Mo, W alloy element in covering of an electrode, make layer, more antifatigue, more low temperature resistant more wear-resisting, more corrosion-resistant than original paper, and this layer improved the mechanical performance and the hardness of weldment, the service life of having improved weldment; The main alloy element of its machined layer is identical with wearing layer, but its hardness ratio wearing layer is soft, therefore is suitable for directly carrying out machining.The supporting use simultaneously of the employed three kinds of welding rods of restorative procedure of the present invention makes adhesion, hardness, the chemical analysis of layer become rational integral body.The present invention is applicable to that the oil pumper parts to low-speed running carry out the built-up welding reparation.The weld preheating that stack welding procedure of the present invention forms and the drawing effect of postwelding are convenient to eliminate the welding stress in the layer, thereby have comprehensively improved the serviceability of repair welding backgear and axle.The present invention also has the advantage that technology is simple, easy to operate, cost is low, and the part after it is repaired more can adapt to the requirement of working environment, and the service life of repair member, rehabilitation cost was only for buying 60% of new parts greater than original paper.
The specific embodiment: the build-up welding repair method of the oil pumper gear of present embodiment and axle carries out as follows: one, treat the remanufactured component surface and clear up, degreasing, remove impurity and iron rust, in case of necessity crackle and fatigue layer are removed processing, 700 ℃ of following preheatings, and oven dry row hydrogen is prepared repair welding; Two, adopt method built-up welding welding transition successively layer, wearing layer and the machined layer of stack welding on the surface at parts damages position; The throat thickness of transition zone is 2～4mm, and welding current is 100 amperes, and the Brinell hardness of layer is HB170～175; The welding temperature of wearing layer is 800 ℃, and layer thickness is 5～7mm, and welding current is 100 amperes, and the Brinell hardness of layer is HB257～258; The welding temperature of machined layer is 800 ℃, and layer thickness is 3～3.5mm, and welding current is 100 amperes, and the Brinell hardness of layer is HB180～210; Three, the parts that built-up welding is repaired under 20 ℃ of room temperatures with per hour 250～280 ℃ speed cooling; Four, parts are carried out machining, the resizing standard.When the built-up welding transition zone, the core wire of used welding rod is the 08E iron core, core wire is 64%～66% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 35～39, fluorite 23～27, quartz 3.5～4.5, synthetic rutile 3.5～4.5, ferrotianium 8～9, molybdenum-iron 2～2.5, vanadium iron 0.25～0.35, ferromanganese 4～5,45
#Ferrosilicon 3～4, ferrochrome 2.5～3.4, nickel powder 0.3～0.4, chalk 1.5～2, iron powder 5.5～6, alkali 0.6～0.69, potassium-sodium water glass 0.02～7; When the build-up wear-resistant layer, the core wire of used welding rod is the 08A iron core, core wire is 62%～64% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 33～37, fluorite 23～26, quartz 4～4.5, feldspar 2.5～3, mica 1.2～1.6, ferrochrome 3.2～3.8, ferromanganese 5～6,45
#Ferrosilicon 4～4.5, molybdenum-iron 2.5～3, vanadium iron 0.4～0.45, tungsten powder 0.25～0.3, nickel powder 0.4～0.45, synthetic rutile 4.5～5, ferrotianium 9.5～10, alkali 0.75～0.80, potassium-sodium water glass 0.02～5.8; When the built-up welding machined layer, the core wire of used welding rod is the 08E iron core, core wire is 64%～66% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 43～47, fluorite 19～21, quartz 4～5, feldspar 2.5～3, mica 1.6～2, ferrochrome 2.5～3, ferromanganese 9～9.5, molybdenum-iron 5.2～5.8,45
#Ferrosilicon 3.8～4.2, synthetic rutile 2.8～3.2, alkali 0.86～0.98, potassium-sodium water glass 0.02～5.7; CaCO in the wherein said marble
3〉=96%, the CaF in the fluorite
2〉=98%, the SiO in the quartz
2〉=98%, the TiO in the synthetic rutile
2〉=90%, the Ti in the ferrotianium 〉=27%, the Mo in the molybdenum-iron 〉=50%, the V in the vanadium iron 〉=50%, the Mn in the ferromanganese 〉=72%, 45
#Si in the ferrosilicon 〉=45%, the Cr in the ferrochrome 〉=40%, the Ni in the nickel powder 〉=98%, the CaO in the chalk 〉=17%, MgO 〉=22%, SiO
2〉=32%, Al
2O
3〉=4%, P≤0.02%, S≤0.02%, the Fe in the iron powder 〉=98%, alkali are anhydrous Na
2CO
3, the modulus of potassium-sodium water glass is that 2.6～3.0M, Baume concentration are 46～49Be, the CaO in the feldspar 〉=62%, K
2O
2And Na
2O 〉=12%, Al
2O
3〉=24%, P≤0.02%, S≤0.02%, the SiO in the mica
2〉=43%, Al
2O
3〉=35%, K
2O and Na
2O 〉=7%, the W in the tungsten powder 〉=96%.More than manufacturing the raw material of welding rod all can buy in Jinzhou weld metal material factory.The welding rod of welding transition layer belongs to charcoal steel low-alloy steel bottoming surfacing welding in the low hydrogen alkalescence direct current, and the welding rod of wearing layer and machined layer is a charcoal steel low-alloy steel surfacing welding in the low hydrogen alkalescence, and three kinds of supporting uses of welding rod just can reach optimum efficiency.The chemical analysis such as the following table of the deposited metal of welding rod are listed:
Claims (5)
1, the build-up welding repair method of a kind of oil pumper gear and axle, it carries out as follows: one, treat the remanufactured component surface and clear up, it is characterized in that carrying out the processing of preheating row hydrogen after the cleaning, preheat temperature is 500 ℃～800 ℃; Two, the method for welding with stack on the surface at parts damages position adopts three kinds of welding rods built-up welding transition zone, wearing layer and machined layer successively; The layer thickness of transition zone is 1～5mm, and welding current is 90～120 amperes, and the Brinell hardness of layer is HB160～180; The welding temperature of wearing layer is 750 ℃～900 ℃, and layer thickness is 4～8mm, and welding current is 90～120 amperes, and the Brinell hardness of layer is HB250～260; The welding temperature of machined layer is 750 ℃～900 ℃, and layer thickness is 2～4mm, and welding current is 90～120 amperes, and the Brinell hardness of layer is HB180～210; Three, the parts that built-up welding is repaired are at room temperature lowered the temperature with per hour 200 ℃～300 ℃ speed.
2, the build-up welding repair method of a kind of oil pumper gear according to claim 1 and axle, it is characterized in that in second step, when welding each overlay cladding, according to thickness weldering one time or several times, each is all over being to be formed by some superimposed welding beads all, and new welding bead will cover the width of last welding bead 1/3.
3, the build-up welding repair method of a kind of oil pumper gear according to claim 1 and axle, the parts that it is characterized in that the built-up welding reparation are lower than 16 ℃ as room temperature when cooling, need with the cotton covering cooling of aluminium silicate salt.
4, the build-up welding repair method of a kind of oil pumper gear according to claim 1 and axle, it is characterized in that when the built-up welding transition zone, the core wire of used welding rod is the 08E iron core, core wire is 64%～66% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 35～39, fluorite 23～27, quartz 3.5～4.5, synthetic rutile 3.5～4.5, ferrotianium 8～9, molybdenum-iron 2～2.5, vanadium iron 0.25～0.35, ferromanganese 4～5,45
#Ferrosilicon 3～4, ferrochrome 2.5～3.4, nickel powder 0.3～0.4, chalk 1.5～2, iron powder 5.5～6, alkali 0.6～0.69, potassium-sodium water glass 0.02～7; When the build-up wear-resistant layer, the core wire of used welding rod is the 08A iron core, core wire is 62%～64% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 33～37, fluorite 23～26, quartz 4～4.5, feldspar 2.5～3, mica 1.2～1.6, ferrochrome 3.2～3.8, ferromanganese 5～6,45
#Ferrosilicon 4～4.5, molybdenum-iron 2.5～3, vanadium iron 0.4～0.45, tungsten powder 0.25～0.3, nickel powder 0.4～0.45, synthetic rutile 4.5～5, ferrotianium 9.5～10, alkali 0.75～0.80, potassium-sodium water glass 0.02～5.8; When the built-up welding machined layer, the core wire of used welding rod is the 08E iron core, core wire is 64%～66% of a welding rod weight, all the other are the weldering skin, and electrode coating is made up of following raw materials by weight percent: marble 43～47, fluorite 19～21, quartz 4～5, feldspar 2.5～3, mica 1.6～2, ferrochrome 2.5～3, ferromanganese 9～9.5, molybdenum-iron 5.2～5.8,45
#Ferrosilicon 3.8～4.2, synthetic rutile 2.8～3.2, alkali 0.86～0.98, potassium-sodium water glass 0.02～5.7; CaCO in the wherein said marble
3〉=96%, the CaF in the fluorite
2〉=98%, the SiO in the quartz
2〉=98%, the TiO in the synthetic rutile
2〉=90%, the Ti in the ferrotianium 〉=27%, the Mo in the molybdenum-iron 〉=50%, the V in the vanadium iron 〉=50%, the Mn in the ferromanganese 〉=72%, 45
#Si in the ferrosilicon 〉=45%, the Cr in the ferrochrome 〉=40%, the Ni in the nickel powder 〉=98%, the CaO in the chalk 〉=17%, MgO 〉=22%, SiO
2〉=32%, Al
2O
3〉=4%, P≤0.02%, S≤0.02%, the Fe in the iron powder 〉=98%, alkali are anhydrous Na
2CO
3, the modulus of potassium-sodium water glass is that 2.6～3.0M, Baume concentration are 46～49Be, the CaO in the feldspar 〉=62%, K
2O
2And Na
2O 〉=12%, Al
2O
3〉=24%, P≤0.02%, S≤0.02%, the SiO in the mica
2〉=43%, Al
2O
3〉=35%, K
2O and Na
2O 〉=7%, the W in the tungsten powder 〉=96%.
5, according to the build-up welding repair method of claim 1 or 4 described a kind of oil pumper gears and axle, the diameter of the core wire of used welding rod is 3.2mm or 4mm when it is characterized in that welding transition layer, wearing layer and machined layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157332 CN1207126C (en) | 2002-12-23 | 2002-12-23 | Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157332 CN1207126C (en) | 2002-12-23 | 2002-12-23 | Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1418755A CN1418755A (en) | 2003-05-21 |
| CN1207126C true CN1207126C (en) | 2005-06-22 |
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ID=4752926
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157332 Expired - Fee Related CN1207126C (en) | 2002-12-23 | 2002-12-23 | Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine |
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| CN (1) | CN1207126C (en) |
Families Citing this family (14)
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| CN101804709A (en) * | 2010-03-08 | 2010-08-18 | 安徽海螺川崎装备制造有限公司 | Wearing resistant structure of wear resistant piece and repair machining process thereof |
| CN101913013B (en) * | 2010-08-18 | 2013-05-22 | 中信重工机械股份有限公司 | Process for assembling and welding middle-hard teeth surface welded gear |
| CN102294566B (en) * | 2010-11-23 | 2013-03-20 | 武汉开明高新科技有限公司 | Method for repairing hardened gear |
| CN102284808A (en) * | 2011-09-02 | 2011-12-21 | 天津大桥焊材集团有限公司 | Whole-position welded high-strength steel basic electrode with super-low hydrogen and high tenacity |
| CN102489891A (en) * | 2011-11-16 | 2012-06-13 | 燕山大学 | Special welding electrode for surfacing and repairing broken teeth of light-load and low-speed gear |
| CN102489900B (en) * | 2011-11-16 | 2014-11-12 | 燕山大学 | Special welding electrode for surfacing and repairing broken teeth of medium-load and medium-speed gear and its using method |
| CN102513776A (en) * | 2011-12-16 | 2012-06-27 | 北京工业大学 | Repair method for chain wheel of scraper conveyor |
| CN102689115B (en) * | 2012-06-11 | 2014-08-20 | 天津大桥焊材集团有限公司 | High-toughness and high-strength steel electrode for 60kg all position welding |
| CN102814604B (en) * | 2012-06-28 | 2014-06-25 | 北京工业大学 | Bead weld flux-cored wire for repairing hammer forging die and preparation method |
| CN103042339A (en) * | 2013-01-22 | 2013-04-17 | 时鹏 | Pump cover repair technology |
| CN104858420A (en) * | 2015-05-09 | 2015-08-26 | 芜湖鼎恒材料技术有限公司 | Hard Fe-Si-Mn-W weld layer material and preparing method thereof |
| CN109158789A (en) * | 2018-11-06 | 2019-01-08 | 本钢板材股份有限公司 | The renovation technique of questions of drive gear tooth |
| CN112496667A (en) * | 2020-10-09 | 2021-03-16 | 广东韶钢工程技术有限公司 | Special rod guide plate surfacing repair process |
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2002
- 2002-12-23 CN CN 02157332 patent/CN1207126C/en not_active Expired - Fee Related
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| CN1418755A (en) | 2003-05-21 |
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Effective date of registration: 20210707 Address after: No.3, Changyi street, economic and Technological Development Zone, Ranghulu District, Daqing City, Heilongjiang Province Patentee after: DAQING GUANGXIN PETROLEUM MACHINERY EQUIPMENT Co.,Ltd. Address before: 163500 Heilongjiang Province, Daqing City Ranghulu District West Road 28 Lane new static special material welding Co. Ltd. Patentee before: Dunzijiang Patentee before: Cao Weifu |
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Granted publication date: 20050622 Termination date: 20211223 |
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