CN1565793A - Method for manufacturing antifriction brake hub of oil drilling and repairing device - Google Patents
Method for manufacturing antifriction brake hub of oil drilling and repairing device Download PDFInfo
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- CN1565793A CN1565793A CN 03148492 CN03148492A CN1565793A CN 1565793 A CN1565793 A CN 1565793A CN 03148492 CN03148492 CN 03148492 CN 03148492 A CN03148492 A CN 03148492A CN 1565793 A CN1565793 A CN 1565793A
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Abstract
The invention relates to a wearproof baking hub preparing method for a petroleum drilling and repairing equipment. The preparing process includes the following steps: selecting the excellent carbon steel or low-carbon alloy steel plate, rolling the cylinder by the bending machine, welding the cylinder joint; repair welding on the cylinder surface by using the submerged arc automatic welder and using the wearproof flux-cored wire, wherein the thickness of overlay is between 7mm and 12mm, the welding parameters are as follows: voltage 30-38V, current 450-480A, direct current inversed jointing, welding speed 28-32m/h, and preheating and interlayer temperature 250-350C., having a slow cooling heat treatment in furnace after welding; welding the connection plate and the cooling water chamber by manual electric arc welding; detecting the surface defect of the cylinder joint and the overlay; machine working the cylinder end surface and the overlay top circle. The baking hub prepared by the method has the following advantages: good wear resistance, good thermal endurance, and good weldability.
Description
(1) technical field
The present invention relates to oil and bore the manufacture method of repairing the wear-resisting brake hubs of equipment brake system of winch.
(2) background technology
At present to repair winch on the equipment be steel-casting with the hub body of brake hubs to brills such as oil-well rig, workover rig, tractor hoist, and material has ZG18CrMnMo, ZG40CrMo, ZG35CrMo, ZG35SiMn etc.It is modified and surface hardening that heat treatment technics requires.There is following problem in the casting brake hubs: the first, during brake hubs work,, can reach 900 ℃ because the brake hubs surface temperature is very high, and at this time hardness is fallen very lowly because of temperature is high, and wearability reduces; The second, behind releasing of brake, the brake hubs surface temperature is in 3-5 very fast reduction in second, and brake hubs is because of periodic heating and cooling, and thermal stress, transformation stress and the frictional force of bearing alternation produce heat fatigue cracking.Cause the brake hubs failure mode to have two kinds: surface checking that heat fatigue causes and wearing and tearing.Because steel-casting crystal grain is thick, defective is many, and thermal fatigue resistance is relatively poor; The 3rd, brake hubs is the hub body of steel-casting and the cooling jacket of mild steel, the Welding Structure of connecting plate, and the welding of steel-casting and mild steel difficulty relatively needs preheating and postweld heat preservation, and easily produces weld defect.Oil bores that to repair brake hubs load and the shock loading used on the equipment all bigger, and the cast steel class brake hubs life-span lacks, and reliability is low, exists potential safety hazard.
(3) summary of the invention
The problem that the present invention need solve is to propose a kind of new brake hubs manufacture method, solves the wearability of traditional brake hubs and problems such as thermal fatigue resistance is poor, solderability difference.
The object of the present invention is achieved like this: select excellent carbon steel of weldability and low-alloy steel steel plate for use, roll cylindrical shell with veneer reeling machine, survive through drum surface built-up welding, machined, after being welded to connect plate and water cavity and Non-Destructive Testing, its manufacture method is:
1, selecting thickness for use is that the material of 20～30mm is low-carbon (LC) normal carbon steel plate or low-carbon (LC) Fine Steel Casting iron plate or low-carbon and low-alloy structural steel plate.
2, according to the diameter dimension of concrete brake hubs, roll of steel plate is made cylindrical shell with veneer reeling machine.
3, at cylindrical shell seam crossing bevel, arc welding welding cylindrical shell seam is carried out cylindrical shell school circle after the welding.
4, the interior welds defective is checked in cylindrical shell seam weld seam x-ray inspection.
5, use automatic submerged-arc welding machine, select the wear-resisting type flux-cored wire for use, carry out built-up welding at the drum surface that is rolled into, overlay cladding thickness 7～12mm, welding parameter: voltage 30～38V, electric current 450～480A, dc reverse connection, weldering speed 28～32m/h, 250～350 ℃ of preheat temperature and interlayer temperatures, postwelding carries out slow cooling heat treatment in the stove.
6, be welded to connect plate and cooling water cavity at cylinder inner surface.
7, nondestructive inspection is carried out on the overlay cladding surface, mainly checks crizzle.
8, use lathe, select carbide alloy welding bit tool usefulness for use, body end surface and the machined of overlay cladding cylindrical.
Beneficial effect of the present invention is:
1, wearability is good.Because welding wire is the wear-resisting type flux-cored wire, a large amount of carbide hard particles is arranged in the postwelding surface texture, these hard points can not reduce hardness along with the rising of brake temperature, so overlay cladding wearability hardened layer more modified than middle carbon alloy cast steel and the surface induction hardening attitude is good.
2, thermal fatigue property is good.Thermal fatigue property belongs to low-cycle fatigue, with the plastic deformation ability of material much relations is arranged, and plastic deformation ability is strong, and thermal fatigue resistance is good.Obviously, the mild steel steel plate is better than the plasticity of casting medium carbon steel, and its reason one is that the carbon amount is low, and the 2nd, dense structure, the 3rd, crystal grain is tiny, and the 4th, internal flaw is few.
3, the weldability with other part such as connecting plate, cooling water cavity is good, and connecting plate, cooling water cavity material are mild steel, and they weld with cylindrical shell, and without preheating, also without postweld heat preservation and destressing, traditional casting brake hubs then needs preheating and postwelding destressing.
The invention will be further described below in conjunction with accompanying drawing and optimal way.
(4) description of drawings
Fig. 1 is 120 tons of petroleum well servicing rig winch brake hub structure schematic diagrames.
(5) specific embodiment
Referring to Fig. 1, the outer surface build-up wear-resistant layer 2 of brake hubs cylindrical shell 1, cylindrical shell 1 inner surface welding cooling water cavity 3 and connecting plate 4.Manufacture method of the present invention is:
1, blanking thickness is the 16Mn steel plate of 30mm, rolls into cylindrical shell 1 with veneer reeling machine, and at cylindrical shell seam crossing bevel, arc welding welding cylindrical shell seam is carried out cylindrical shell school circle after the welding, and butt welded seam carries out x-ray inspection then.
2, use the automatic submerged arc welding electric welding machine to carry out cylindrical shell 1 surface overlaying, select CrMo type wear-resisting welding wire with flux core for use, adopt two welding wires, overlay cladding 2 thickness 9～12mm.Welding parameter: voltage 30V, electric current 480A, connected mode is a dc reverse connection, welds fast 30m/h, 280～300 ℃ of preheat temperature and interlayer temperatures, slow cooling heat treatment in the postwelding stove.
3, manual electric arc welding is welded to connect plate 3, cooling water cavity 4, connecting plate material 16Mn, cooling water cavity material Q235A.
4, magnetic powder inspection is carried out on the overlay cladding surface, and the GB4730-94 regulation is pressed in method of detection, and the I level is qualified.
5, use vertical lathe, select the carbide bit cutter for use, processing body end surface and overlay cladding 2 cylindricals survive.
Empirical tests, with the brake hubs that the inventive method is manufactured, manufacturing cost reduces by 30%, comes into operation after the installation, and service life increases 80-100%, has reduced the shutdown maintenance expense of workover rig effectively.
Claims (2)
1, a kind of oil bores and repaiies the wear-resisting brake hubs manufacture method of equipment, and it is characterized in that: this method comprises the steps:
A, to select the material of thickness 20～30mm for use be low-carbon (LC) normal carbon steel plate or low-carbon (LC) Fine Steel Casting iron plate or low-carbon and low-alloy structural steel plate;
B, according to the diameter dimension of brake hubs, with veneer reeling machine roll of steel plate is made cylindrical shell (1);
C, at cylindrical shell seam crossing bevel, arc welding welding cylindrical shell seam is carried out cylindrical shell school circle after the welding;
D, the x-ray inspection of cylindrical shell seam crossing weld seam;
E, use automatic submerged-arc welding machine, select the wear-resisting type flux-cored wire for use, carry out built-up welding on the cylindrical shell that is rolled into (1) surface, overlay cladding (2) thickness 7～12mm, welding parameter: voltage 30～38V, electric current 450～480A, dc reverse connection, weldering speed 28～32m/h, 250～350 ℃ of preheat temperature and interlayer temperatures, postwelding carries out slow cooling heat treatment in the stove;
F, be welded to connect plate (3) and cooling water cavity (4) at cylindrical shell (1) inner surface;
Nondestructive inspection is carried out on g, overlay cladding (2) surface;
H, use lathe are selected carbide alloy welding bit tool for use, to body end surface and overlay cladding (2) cylindrical machined.
2, oil bores and repaiies the wear-resisting brake hubs manufacture method of equipment according to claim 1, it is characterized in that: rolling the selected steel plate of cylindrical shell (1) is the 16Mn steel plate, overlay cladding (2) thickness is 9～12mm, CrMo type flux-cored wire is selected in Lincoln weld for use, welding parameter: voltage 30V, electric current 480A welds fast 30m/h, 280～300 ℃ of preheat temperature and interlayer temperatures; Magnetic powder inspection is carried out on overlay cladding (2) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031484921A CN1328004C (en) | 2003-07-01 | 2003-07-01 | Manufacturing method of wear-resistant brake hub of petroleum drilling and repairing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031484921A CN1328004C (en) | 2003-07-01 | 2003-07-01 | Manufacturing method of wear-resistant brake hub of petroleum drilling and repairing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1565793A true CN1565793A (en) | 2005-01-19 |
| CN1328004C CN1328004C (en) | 2007-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031484921A Expired - Fee Related CN1328004C (en) | 2003-07-01 | 2003-07-01 | Manufacturing method of wear-resistant brake hub of petroleum drilling and repairing equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN1328004C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2067566A1 (en) * | 2007-11-30 | 2009-06-10 | Nippon Steel & Sumikin Welding Co., Ltd. | Flux-cored wire for submerged arc welding of low-temperature steel and a method for welding using the same |
| CN102950362A (en) * | 2012-07-03 | 2013-03-06 | 苏州张扬能源科技有限公司 | Novel solar motor energy-storage tube welding method |
| CN104084670A (en) * | 2014-06-26 | 2014-10-08 | 中船澄西远航船舶（广州）有限公司 | Chrome-nickel alloy overlaying welding process of multipoint mooring device |
| CN104227180A (en) * | 2014-09-23 | 2014-12-24 | 重庆舸海机电有限公司 | Welding method for NM400 wear-resistant steel |
| CN105803845A (en) * | 2015-01-21 | 2016-07-27 | 福伊特专利有限公司 | Drying cylinders |
| CN114505656A (en) * | 2022-03-22 | 2022-05-17 | 烟台杰瑞石油装备技术有限公司 | Manufacturing process of plunger pump shell, plunger pump shell and plunger pump |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406394A (en) * | 1980-11-28 | 1983-09-27 | General Motors Corporation | Method of friction band manufacture |
| DE4217132A1 (en) * | 1992-05-23 | 1993-11-25 | Georg Burger | Mfg. process for drum brake shoes - with pressed curved section with raised rib joined to stamped out web by laser welding |
| CN2174560Y (en) * | 1993-10-12 | 1994-08-17 | 胜利石油管理局钻井工艺研究院 | Cable-feeding apparatus for tower type derrick |
| DE4445226A1 (en) * | 1994-12-17 | 1996-06-20 | Porsche Ag | Brake discs for disc brakes |
| CN2281345Y (en) * | 1996-11-04 | 1998-05-13 | 四川省石油管理局川东钻探公司 | Braking drum for cylinder shaft of hoist of drilling rig |
| CN1100156C (en) * | 1999-01-25 | 2003-01-29 | 吉林工业大学 | New brake hub material |
-
2003
- 2003-07-01 CN CNB031484921A patent/CN1328004C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2067566A1 (en) * | 2007-11-30 | 2009-06-10 | Nippon Steel & Sumikin Welding Co., Ltd. | Flux-cored wire for submerged arc welding of low-temperature steel and a method for welding using the same |
| CN102950362A (en) * | 2012-07-03 | 2013-03-06 | 苏州张扬能源科技有限公司 | Novel solar motor energy-storage tube welding method |
| CN104084670A (en) * | 2014-06-26 | 2014-10-08 | 中船澄西远航船舶（广州）有限公司 | Chrome-nickel alloy overlaying welding process of multipoint mooring device |
| CN104084670B (en) * | 2014-06-26 | 2015-08-26 | 中船澄西船舶（广州）有限公司 | Multipoint mooring device chrome-nickel built-up welding welding procedure |
| CN104227180A (en) * | 2014-09-23 | 2014-12-24 | 重庆舸海机电有限公司 | Welding method for NM400 wear-resistant steel |
| CN105803845A (en) * | 2015-01-21 | 2016-07-27 | 福伊特专利有限公司 | Drying cylinders |
| CN105803845B (en) * | 2015-01-21 | 2020-03-27 | 福伊特专利有限公司 | Drying cylinder |
| CN114505656A (en) * | 2022-03-22 | 2022-05-17 | 烟台杰瑞石油装备技术有限公司 | Manufacturing process of plunger pump shell, plunger pump shell and plunger pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1328004C (en) | 2007-07-25 |
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Granted publication date: 20070725 Termination date: 20100701 |