CN102218620B - Surfacing material for mold rod for manufacturing oxygen bottle - Google Patents
Surfacing material for mold rod for manufacturing oxygen bottle Download PDFInfo
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- CN102218620B CN102218620B CN 201110132484 CN201110132484A CN102218620B CN 102218620 B CN102218620 B CN 102218620B CN 201110132484 CN201110132484 CN 201110132484 CN 201110132484 A CN201110132484 A CN 201110132484A CN 102218620 B CN102218620 B CN 102218620B
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Abstract
The invention relates to a surfacing material for a mold rod for manufacturing an oxygen bottle, comprising the following elements by the mass percentage of surfacing deposited metal: 0-0.20 percent of carbon, 11.0 to 14.6 percents of chrome, 1.0 to 2.8 percents of manganese, 0.2-0.5 percent of silicon, less than 0.010 percent of sulfur, less than 0.025 percent of phosphor, 2.0 to 6.0 percents of nickel, 2.0 to 6.0 percents of molybdenum, 0.2 to 1.0 percent of vanadium, 1.0 to 2.0 percents of tungsten, 0.6 to 1.0 percent of columbium, 1 to 3 percents of cobalt, 0 to 0.16 percent of nitrogen, and the balance of iron. The mold rod repaired by the surfacing material can be utilized repeatedly, therefore, the forging cost is greatly saved, the service life is prolonged, and the surfacing material has an excellent performance-to-price ratio.
Description
Technical field
The present invention relates to a kind of manufacturing oxygen cylinder tringle resurfacing welding material, belong to a kind of low cost, high-quality composite.
Background technology
The instrument that mainly thrusts that the manufacturing oxygen cylinder is used is tringle, and its material is generally alloy hot die steels such as forging 50CrMnMo and H13.Tringle in use, the tringle surface oxygen cylinder blank that particularly tringle termination and high temperature are red-hot contacts, each circulation continuous is more than ten seconds, and tringle particularly tringle cross cut end (of a beam) is heated rapidly and is warmed up to 400 ℃～700 ℃, and internal layer still is in lower temperature, the top layer expanded by heating, be subjected to again simultaneously the constraint of internal layer, thereby produce compression, and bear the stamping press of tons up to a hundred (approximately 350 tons), thereby produce the wearing and tearing of HTHP High Rotation Speed with the oxygen cylinder blank, wear form is serious.When the tringle demoulding, again to tringle surface sprinkling coolant return lubricants, make skin temperature drop to 150 ℃～200 ℃ and produce to shrink, when the surface is subject to again the restriction of internal layer, produce tension, under the alternation effect of tension and compression stress, cause fatigue failure.So the failure mode of tringle mainly contains HTHP High Rotation Speed wear out failure, fatigue failure, cold and hot fatigue failure etc., thereby produce numerous cut and crackle on tringle surface and inferior surface, when the cut of a certain online tringle and crackle (especially circumferential crack) when more serious, in order to ensure the quality of inner wall of steel cylinder, must change immediately this mould.
In recent years, domestic and international many enterprises all adopt the mode of built-up welding to repair the waste and old medium and high carbon steel parts such as hot roll, it is advantageous that: on the one hand, the parts such as whole manufacturing hot roll are somewhat expensive not only, and the advantage of precious alloy can not be brought into play fully, if adopt bead-welding technology to manufacture the bimetallic parts, be the matrix of parts and the material of built-up welding top layer employing different performance, not only can bring into play the comprehensive technical performance of parts and material on make potentiality, can also save a large amount of precious alloys; On the other hand, the production time of the parts such as whole manufacturing hot roll is long, adopts the mode of built-up welding to shorten in a large number the production time, thereby significantly raises labour productivity.
Summary of the invention
The main position that the oxygen cylinder tringle lost efficacy is the tringle body of roll and tringle front end semicircle cambered surface, tringle is when contacting with the oxygen cylinder blank, at first be that the tringle front end contacts with blank, and bear pressure top dabbing base higher than 450 tons, the oxygen cylinder blank extends under the effect of pressure on top surface, generates the oxygen bottle base with certain-length.So tringle front end drift and front end arcwall face not only are subjected to temperatures involved, and are subjected to High Pressure, and the longest time of contact with high temperature oxygen gas cylinder blank, approximately more than 10s; And tringle shaft (except the front end arcwall face) only is subjected to the impact of high temperature and middle pressure; When extracting, the oxygen bottle base is subjected to again the impact of cooling medium when tringle.
Main purpose of the present invention is to provide a kind of resurfacing welding material that oxygen cylinder is used tringle of making, can be on not yet completely written-off oxygen cylinder tringle or solderability good forging surface, according to different application position built-up welding different materials, effectively improve the performance on mold cavity surface or inferior surface, improve well die life, greatly reduce the forging manufacturing cost, thereby realize the target of energy-saving and emission-reduction.
To achieve these goals, the present invention takes following technical scheme:
A kind of resurfacing welding material of making oxygen cylinder use tringle, calculate by built-up welding deposited metal mass percent, comprising: carbon C:0～0.20, chromium Cr:11.0～14.6, manganese Mn:1.0～2.8, silicon Si:0.2～0.5, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 2.0～6.0, molybdenum Mo:2.0～6.0, vanadium V:0.2～1.0, tungsten W:1.0～2.0, niobium Nb:0.6～1.0, cobalt Co:1～3, nitrogen N:0～0.16, iron Fe: surplus.
A kind of preferred technical scheme is characterized in that: described nickel is 3.0～6.0, and molybdenum Mo is 3.0～6.0.It is a kind of built-up welding deposited metal material that is applicable to tringle termination and arc section, calculate by built-up welding deposited metal mass percent, comprising: carbon C:0～0.20, chromium Cr:11.0～14.6, manganese Mn:1.0～2.8, silicon Si:0.2～0.5, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 3.0～6.0, molybdenum Mo:3.0～6.0, vanadium V:0.2～1.0, tungsten W:1.0～2.0, niobium Nb:0.6～1.0, cobalt Co:1～3, nitrogen N:0～0.16, iron Fe: surplus.
A kind of preferred technical scheme is characterized in that: described nickel is 2.0～5.0, and molybdenum Mo is 2.0～5.0, and cobalt Co is 1～2, and nitrogen N is 0～0.12.It is a kind of built-up welding deposited metal material that is applicable to tringle shaft (except front end), calculate by built-up welding deposited metal mass percent, comprising: carbon C:0～0.20, chromium Cr:11.0～14.6, manganese Mn:1.0～2.8, silicon Si:0.2～0.5, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 2.0～5.0, molybdenum Mo:2.0～5.0, vanadium V:0.2～1.0, tungsten W:1.0～2.0, niobium Nb:0.6～1.0, cobalt Co:1～2, nitrogen N:0～0.12, iron Fe: surplus.
In the preparation method of manufacturing oxygen cylinder of the present invention with the resurfacing welding material of tringle, steel band can adopt the common general steel 0.5～0.9mm in market * 10～16mm, proportioning adopts 30～50%, makes the flux-cored wire of Φ 2.4mm～4.0mm, and concrete technical scheme is as follows.
The present invention makes the preparation method that oxygen cylinder is used the resurfacing welding material of tringle, comprises the following steps:
A. mix in meal mixer according to the powder of formula with each constituent, obtain mixed powder;
B. adopt the ordinary carbon steel steel band;
C. on wire rolling mill, steel band is rolled into the cross section and takes the shape of the letter U, dose the mixed powder that obtains in step a in the U-shaped groove of steel band, subsequently the U-shaped steel band is rolled into the welding wire base pipe of diameter 3mm～5mm;
D. with wire drawing machine with welding wire base pipe drawing to diameter 2.4mm～4.0mm, divide around the standard treppenwicklung with layer winder subsequently, namely obtain resurfacing welding material (flux-cored wire).
Flux-cored wire as above, wherein, the specification of described steel band is preferably the common general steel 0.5～0.9mm in market * 10～16mm, and proportioning (being the medicine core and the gross weight ratio of welding wire, i.e. medicine core/(medicine core+steel band)) adopts 30～50%; Described steel band is preferably the ordinary carbon steel steel band of model H08A; Described wire drawing machine is preferably multi-joint straight-line machine.
Resurfacing welding material of the present invention has following features:
The capping submerged arc overlay welding solder wire material of tringle arc tips and drift, its metallographic structure are take bainite as main, and martensite is auxiliary, and the Testing Tensile Strength at Elevated Temperature at 600 ℃ of resurfacing welding material is Rm＞1100MP simultaneously, normal temperature impact capacity a
Kv＞10J, the hardness after heat treatment is: 38～48HRC.
The capping submerged arc overlay welding solder wire material of the tringle body of roll, its metallographic structure are take martensite as main, and bainite is auxiliary, and resurfacing welding material hardness is higher, wear-resisting, endurance, its Rm＞1000M P, a
Kv＞8J, the hardness after heat treatment is: 40～50HRC.
During both built-up welding, solubility is good, and the hardness drop is Δ HRC＜4.
The compound emphasis of making again of built-up welding is built-up welding body surface and tringle front end drift, adopts resurfacing welding material reparation of the present invention to make the oxygen cylinder tringle, possesses following advantage:
1, be applicable to the built-up welding deposited metal material of tringle termination and arc section, possess following performance: can keep high intensity and good impact flexibility under (1) high temperature; (2) good wearability and certain hardness; (3) good heat-resistant anti-fatigue performance; (4) high permeability and whole synthesis performance.Thereby make the tringle front end can satisfy in the course of the work requirement, namely stand the reciprocations such as high temperature, high pressure (hundreds of ton) and water-cooled.
2, be applicable to the built-up welding deposited metal material of tringle shaft (except front end), than tringle front end material high temperature resistant property, compressive property can be slightly more inferior, but anti-fatigue performance is good.Make the tringle body of roll (tringle shaft) can satisfy requirement in the course of the work, namely stand the reciprocations such as high temperature, middle pressure and water-cooled.
Tringle after employing built-up welding reparation can reuse, and therefore adopts built-up welding compound (again) to make tringle, has not only greatly saved the forging cost, and has been improved service life, has good cost performance.
The present invention will be further described below by the drawings and specific embodiments, but and do not mean that limiting the scope of the invention.
Description of drawings
Fig. 1 uses the pattern schematic diagram of tringle for making oxygen cylinder.
The specific embodiment
Fig. 1 uses the pattern schematic diagram of tringle for making oxygen cylinder.Tringle can have various diameters, and wherein 1 is the tringle termination, and 2 is tringle arc section, and 3 is the tringle shaft.
Following embodiment all proportionally mixes the powder of the raw material of resurfacing welding material, and the raw material after mixing is packed in steel band, and steel band adopts 0.5mm * 14mm ordinary carbon steel steel band, and proportioning adopts 40%, makes the flux-cored wire of Φ 3.2mm.
Concrete steps comprise:
A. mix in meal mixer according to the powder of formula with each constituent, obtain mixed powder;
B. adopt the ordinary carbon steel steel band;
C. on wire rolling mill, steel band is rolled into the cross section and takes the shape of the letter U, dose the mixed powder that obtains in step a in the U-shaped groove of steel band, subsequently the U-shaped steel band is rolled into the welding wire base pipe of diameter 4～5mm left and right;
D. with wire drawing machine with welding wire base pipe drawing to diameter 3.2mm, divide around the standard treppenwicklung with layer winder subsequently, namely obtain flux-cored wire.
Embodiment 1
The resurfacing welding material that is used for tringle termination and arc section, resurfacing welding material is calculated by built-up welding deposited metal mass percent, comprise carbon C:0, chromium Cr:11.0, manganese Mn:1.0, silicon Si:0.2, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 6.0, molybdenum Mo:6.0, vanadium V:1.0, tungsten W:2.0, niobium Nb:1.0, cobalt Co:3, nitrogen N:0, iron Fe: surplus.
Embodiment 2
The resurfacing welding material that is used for tringle termination and arc section, resurfacing welding material is calculated by built-up welding deposited metal mass percent, comprising: carbon C:0.20, chromium Cr:14.6, manganese Mn:2.8, silicon Si:0.5, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 3.0, molybdenum Mo:3.0, vanadium V:0.2, tungsten W:1.0, niobium Nb:0.6, cobalt Co:1, nitrogen N:0.16, iron Fe: surplus.
Embodiment 3
The resurfacing welding material that is used for tringle termination and arc section, resurfacing welding material calculates by built-up welding deposited metal mass percent, comprising: carbon C:0.12, chromium Cr:12.4, manganese Mn:2.2, silicon Si:0.45, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 4.5, molybdenum Mo:4.8, vanadium V:0.8, tungsten W:1.3, niobium Nb:0.75, cobalt Co:1.8, nitrogen N:0.09, iron Fe: surplus.
Embodiment 4
The resurfacing welding material that is used for tringle shaft (except front end and segmental arc), resurfacing welding material calculates by built-up welding deposited metal mass percent, comprising: carbon C:0, chromium Cr:11.0, manganese Mn:1.0, silicon Si:0.2, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 5.0, molybdenum Mo:5.0, vanadium V:1.0, tungsten W:2.0, niobium Nb:1.0, cobalt Co:2, nitrogen N:0, iron Fe: surplus.
Embodiment 5
The resurfacing welding material that is used for tringle shaft (except front end and segmental arc), resurfacing welding material calculates by built-up welding deposited metal mass percent, comprise (carbon, nitrogen, chromium, manganese, silicon are got high value, all the other low values): carbon C:0.20, chromium Cr:14.6, manganese Mn:2.8, silicon Si:0.5, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 2.0, molybdenum Mo:2.0, vanadium V:0.2, tungsten W:1.0, niobium Nb:0.6, cobalt Co:1, nitrogen N:0.12, iron Fe: surplus.
Embodiment 6
The resurfacing welding material that is used for tringle shaft (except front end and segmental arc), resurfacing welding material calculates by built-up welding deposited metal mass percent, comprises (all getting median): carbon C:0.14, chromium Cr:13.0, manganese Mn:1.2, silicon Si:0.28, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 3.2, molybdenum Mo:2.9, vanadium V:0.6, tungsten W:1.8, niobium Nb:0.7, cobalt Co:1.6, nitrogen N:0.09, iron Fe: surplus.
Adopt the typical built-up welding deposited metal of above-described embodiment 1-6 mechanical property to see Table 1:
Table 1 tringle built-up welding capping layer mechanical property
| Impact flexibility a Kv | 600 ℃ of tensile strength | Hardness after heat treatment | |
| Termination and |
11～18J | 1150～1300MPa | 38～48HRC |
| Shaft | 9～16J | 1000～1260MPa | 40～50HRC |
On the tringle of employing composite manufacturing by hard surfacing, machine punching oxygen cylinder quantity is generally 1000～1500, and forged steel H13 punching amount is generally at 600～1000; Tringle after employing built-up welding reparation can reuse, and therefore adopts built-up welding compound (again) to make tringle, has not only greatly saved the forging cost, and has been improved service life, has good cost performance.
Claims (3)
1. make the resurfacing welding material that oxygen cylinder is used tringle for one kind, calculate by built-up welding deposited metal mass percent, comprising: carbon C:0～0.20, chromium Cr:11.0～14.6, manganese Mn:1.0～2.8, silicon Si:0.2～0.5, sulphur S:＜0.010, phosphorus P:＜0.025, nickel: 2.0～6.0, molybdenum Mo:2.0～6.0, vanadium V:0.2～1.0, tungsten W:1.0～2.0, niobium Nb:0.6～1.0, cobalt Co:1～3, nitrogen N:0～0.16, iron Fe: surplus.
2. manufacturing oxygen cylinder according to claim 1 is with the resurfacing welding material of tringle, and it is characterized in that: described nickel is 3.0～6.0, and molybdenum Mo is 3.0～6.0.
3. manufacturing oxygen cylinder according to claim 1 is with the resurfacing welding material of tringle, and it is characterized in that: described nickel is 2.0～5.0, and molybdenum Mo is 2.0～5.0, and cobalt Co is 1～2, and nitrogen N is 0～0.12.
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| CN 201110132484 CN102218620B (en) | 2011-05-20 | 2011-05-20 | Surfacing material for mold rod for manufacturing oxygen bottle |
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| CN 201110132484 CN102218620B (en) | 2011-05-20 | 2011-05-20 | Surfacing material for mold rod for manufacturing oxygen bottle |
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| CN102218620B true CN102218620B (en) | 2013-06-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106891107A (en) * | 2017-03-13 | 2017-06-27 | 大连华锐重工特种备件制造有限公司 | Hot rolled seamless steel tube mandrel surface composite-making process method |
| CN110757027B (en) * | 2019-11-05 | 2021-08-17 | 上海欣冈贸易有限公司 | High-hardness chromium-molybdenum alloy welding material |
| CN113560832B (en) * | 2021-07-30 | 2022-05-20 | 中材科技（九江）有限公司 | Gas cylinder mold and surfacing method thereof |
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Effective date of registration: 20210127 Address after: 100088 Beijing city Haidian District Xitucheng Road No. 33 Patentee after: CHINA JINGYE ENGINEERING Co.,Ltd. Patentee after: CENTRAL RESEARCH INSTITUTE OF BUILDING AND CONSTRUCTION CO., LTD. MCC Group Address before: 101106 No.2, liangliwu street, East District, Tongzhou Economic Development Zone, Tongzhou District, Beijing Patentee before: ZHONGYE WELDING TECHNOLOGY Co.,Ltd. Patentee before: CENTRAL RESEARCH INSTITUTE OF BUILDING AND CONSTRUCTION CO., LTD. MCC Group |
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Granted publication date: 20130619 |