CN108145340A - A kind of heat resistant and wear resistant grain for distributor chute wears welding wire and preparation method - Google Patents
A kind of heat resistant and wear resistant grain for distributor chute wears welding wire and preparation method Download PDFInfo
- Publication number
- CN108145340A CN108145340A CN201711404976.5A CN201711404976A CN108145340A CN 108145340 A CN108145340 A CN 108145340A CN 201711404976 A CN201711404976 A CN 201711404976A CN 108145340 A CN108145340 A CN 108145340A
- Authority
- CN
- China
- Prior art keywords
- welding wire
- heat resistant
- wear
- wear resistant
- wire
- 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.)
- Granted
Links
Classifications
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention provides a kind of heat resistant and wear resistant grains for distributor chute to wear welding wire, and raw material includes the component of following mass percent meter：Hafnium metal powfer 16~30%, molybdenum-iron 5~15%, tungsten carbide 0.8~5%, niobium powder 3~12%, ferro-boron 0.8~7%, titanium dioxide 0.3~5%, silica 1~5%, manganese metal 0.9~5%, rare earth addition 0.3~6%, copper powder 0.02~0.1%, surplus are iron powder.Solder wire formula raw material provided by the invention is easy to get, preparation process is simple, it is higher to weld obtained sample block hardness, wear-resisting property is good, production cost is low, welding wire provided by the invention can be widely applied to low stress abrasive wear environment, the especially distributor chute of smeltery, alternative imported material in less than 800 DEG C.
Description
Technical field
The invention belongs to field of welding material, and in particular to a kind of high temperature resistant abrasive wear self-shield for distributor chute
Welding wire and preparation method.
Background technology
Distributor chute is a critical component in blast furnace bellless distributor, is to smelt stream to enter blast furnace
The last one channel, pass through distributor chute rotation realize blast furnace in furnace charge uniform spreading.Distributor chute surface will be born
Violent abrasive wear, so having to be manufactured with high-temperature and wear-proof.If the whole material system for all using high abrasion of chute
It makes, then being manufactured into for chute originally will be very high, therefore is a kind of not only economic but also science using wear-resistant liner in spout surfaces
Method, liner plate using two ways improve wearability.First, when manufacturing liner plate, cast using whole antifriction alloy, second is that
It is manufactured using the method for composite abrasion-resistant surfacing.Although the liner plate cast with whole antifriction alloy has preferable wearability, but deposit
The problem of it is more, using the method for composite abrasion-resistant surfacing, can not only ensure that workpiece surface had good wearability, but also can make
Roll body has good comprehensive mechanical property, and there is no cracking or the danger of fracture, this just proposes welding wire, and comparison is high to be wanted
It asks.
Self-shielded welding wire, which refers to, is not required to adscititious gases or solder flux protection, only relies on the alloying element of welding wire itself at high temperature
Chemical reaction, to prevent the gases such as oxygen in air, hydrogen from invading and supplement a kind of welding wire of alloying component.Bead welding wire is usually in heap
One layer of special alloy face is applied in any part weldering of welder's part, and the purpose is to improve the wear-resistant, corrosion-resistant and heat-resisting of working face
Etc. performances, to reduce cost, improve comprehensive performance and service life, built-up welding be also commonly used in the technology repaired the old and utilized scraps, during built-up welding
Different alloys and different hardness level welding wires can be generally selected according to requirements.
Hard-face overlaying welding material is broadly divided into three directions at present：It is welding wire class first, secondly Manual electric welding class and band
Pole welding class, wherein welding wire class resurfacing welding material are divided into as welding wire for submerged-arc welding and self-protection flux-cored wire, and self-protection flux-cored wire is one
Kind do not need to adscititious gases or the efficient of solder flux protection, material-saving, low cost flux-cored wire, say it efficiently, be because of such weldering
The easy to automate, weld seam of silk can realize continuous welding without slag, therefore there is no the problem of needing scarfing cinder；Say its province
Material, because flux-cored wire can save 25% or so deposited metal；As for low cost, be because this kind of welding wire undesirable gas or
Solder flux is protected, so as to reduce production cost.Flux-cored wire can be used for carbon steel, low-alloy high tension steel, and high intensity quenches back
The welding of fiery steel, stainless steel and the wear-resisting steel of stiff dough etc..Flux-cored wire also has the advantage that：Welding to various steel is fitted
Answering property emphasizes that the ingredient of whole solder flux and ratio are extremely convenient and easy, can provide required weld seam chemical composition；Craftsmanship
Can be good, appearance of weld beauty uses gas slag Combined Protection, obtains good forming, and adding in arc stabilizer makes arc stability, droplet transfer
Uniformly；Deposition rate is fast, and the current density of production efficiency height flux-cored wire under same weld electric current is big, and burn-off rate is fast,
Deposition rate is about 85%-90%, and productivity ratio welding electrode arc welding is about 3-5 times high；All position welding can be carried out with larger welding current
It connects, however the shortcomings that flux-cored wire also has it, mainly include：Welding wire manufacturing process is complicated；During welding, wire feed is stranded compared with solid welding wire
It is difficult；The easy corrosion of welding wire appearance, the easy moisture absorption of pulvis, therefore the requirement that a management is preserved to flux-cored wire is more stringent.
CN102233491A discloses a kind of self-protection flux-cored wire, and including steel band and welding agent, welding agent is filled in steel band,
By weight percentage, the ingredient of welding agent include 1~3% aluminium powder, 3~5% rare earth silicon, 1~3% vanadium iron, 50~
65% high carbon ferro-chrome, 10~15% niobium powder, 10~20% molybdenum-iron and 2~5% tungsten carbide, welding agent filling out in steel band
It is 40~50% to fill rate.By adjusting the ratio between above-mentioned alloy powder, the present invention all have under condition of different temperatures compared with
High hardness either has higher hardness, so as to expand under room temperature or under the conditions of high temperature (up to 600 DEG C)
The big use occasion of hard material, reduces limitation of the workpiece temperature in use to material, a variety of welderings is needed when reducing welding
The cumbersome process of material is connect, however, the welding wire of invention offer required condition in soldering is more harsh, makes it should
It is limited with range, further, since carbon content is larger, the defects of still causing as gas protecting welding wire, caused
Self-shield process be difficult to protect it is complete so that welding process is splashed, in turn result in the waste of welding wire soldering with
And harmful effect is caused to the toughness of weld seam.
Resurfacing welding material currently on the market, in use, overlaying surface hardness number is extremely difficult to require, in height under room temperature environment
In use, since high-temerature creep easily occurs for material under warm environment, hardness is caused to reduce, it more difficult to reach higher hardness number.Institute
With the welding wire of domestic enterprise generally from external import, fail to meet the time limit of a project process, increases production cost.
Invention content
To solve problems of the prior art, an object of the present invention is to provide a kind of for the resistance to of distributor chute
High-temperature wearable grain wears welding wire.
The second object of the present invention is to provide the preparation method of above-mentioned welding wire.
To achieve the above object, the present invention uses following technical scheme：
A kind of heat resistant and wear resistant grain for distributor chute wears welding wire, including medicine core and crust, the ingredient of the medicine core
It is by mass percentage：
Hafnium metal powfer 16~30%,
Molybdenum-iron 5~15%,
Tungsten carbide 0.8~5%,
Niobium powder 3~12%,
Ferro-boron 0.8~7%,
Titanium dioxide 0.3~5%,
Silica 1~5%,
Manganese metal 0.9~5%,
Rare earth addition 0.3~6%,
Copper powder 0.02~0.1%,
Surplus is iron powder.
Preferably, the hafnium metal powfer chrome content is more than 95%.
Preferably, the molybdenum-iron amount containing molybdenum is 70%.
Preferably, the tungsten carbide tungstenic amount is more than 95%.
Preferably, the niobium powder purity is more than 98%.
Preferably, the ferro-boron boron content is 21%.
Preferably, the titanium dioxide purity is more than 98%.
Preferably, the silica purity is more than 99.7%.
Preferably, the purity of the manganese metal is more than 99.7%.
Preferably, the rare earth addition is CeO2And La2O3Mixture.
Preferably, CeO in the mixture2And La2O3Weight ratio be (2~5):1.
A kind of preparation method of high temperature resistant abrasive wear welding wire for distributor chute, includes the following steps：
(1) it after each material powder is mixed evenly by proportioning, is put into stove and is dried 2 hours in 180~200 DEG C, obtained
To medicine core powder；
(2) mild steel steel band is rolled into U-type groove, the medicine core powder that step (1) obtains is packed into U-type groove, then lead to
Overmolding machine is closed after type groove is rolled and drawing, obtains flux-cored wire；
(3) finally flux-cored wire prepared by step (2) is stretched with wire drawing machine.
Preferably, the filling rate of medicine core powder described in step (2) is 49~52%.
Preferably, the standard of drawing described in step (2) reaches 2.8~3.2mm for the diameter of flux-cored wire.
Beneficial effects of the present invention
1st, solder wire formula raw material provided by the invention is easy to get, and preparation process is simple, and production cost is low；
2nd, the welding wire prepared using the present invention, obtained welding sample block microstructure is pure, without slag inclusion and stomata, hardness
Higher, wear-resisting property is good；
3rd, welding wire provided by the invention can be widely applied to low stress abrasive wear environment, especially smelting in less than 800 DEG C
The distributor chute of refinery, alternative imported material.
Description of the drawings
1st, Fig. 1 is the Rockwell hardness micro-hardness testing figure of sample C；
2nd, Fig. 2 is the metallographic structure figure of sample C；
3rd, Fig. 3 is the micro-organization chart of sample C.
Specific embodiment
The following is specific embodiments of the present invention, and is described with reference to the drawings and technical scheme of the present invention work is further retouched
It states, but the present invention is not limited to these embodiments.
Embodiment 1
The preparation method of the heat resistant and wear resistant grain abrasion welding wire for distributor chute is present embodiments provided, including following step
Suddenly：
(1) it after each raw material is mixed evenly by proportioning, is put into stove and is dried 2 hours in 180~200 DEG C, obtain medicine
Core powder；
(2) by mild steel steel band be placed in welding wire molding machine put band machine on, mild steel steel band is rolled by U by molding machine
The medicine core powder that step (1) obtains is packed into U-type groove, filling rate 50%, then rolled type groove by molding machine by type groove
It is closed simultaneously drawing afterwards, obtains flux-cored wire；
(3) finally flux-cored wire prepared by step (2) being stretched with wire drawing machine, diameter reaches 2.8mm, and hub disk is disk,
It packs and gets product.
Embodiment 2
The preparation method of the heat resistant and wear resistant grain abrasion welding wire for distributor chute is present embodiments provided, including following step
Suddenly：
(1) it after each raw material is mixed evenly by proportioning, is put into stove and is dried 2 hours in 180~200 DEG C, obtain medicine
Core powder；
(2) by mild steel steel band be placed in welding wire molding machine put band machine on, mild steel steel band is rolled by U by molding machine
The medicine core powder that step (1) obtains is packed into U-type groove, filling rate 50%, then rolled type groove by molding machine by type groove
It is closed simultaneously drawing afterwards, obtains flux-cored wire；
(3) finally flux-cored wire prepared by step (2) being stretched with wire drawing machine, diameter reaches 3.2mm, and hub disk is disk,
It packs and gets product.
Embodiment 3
The method provided using embodiment 1, is prepared for tri- kinds of welding wires of A~C, and the method provided using embodiment 2 is prepared for
Tri- kinds of welding wires of D~F, specific composition proportion are as shown in table 1.
1 welding wire of table proportioning is detailed
Embodiment 4
The present embodiment compares the welding performance of different welding wires, and the results are shown in Table 2.
The welding technological properties of 2 welding wire of table compares
| Sample | Arc stability | Appearance of weld | Crackle |
| A | Arc stability is good, easy arc striking | Postwelding is without slag, forming | Surface flawless |
| B | Arc stability is good, easy arc striking | Postwelding is without slag, forming | Surface flawless |
| C | Arc stability is fine, it is easy to striking | Postwelding is without slag, forming | Surface flawless |
| D | Arc stability is good, easy arc striking | Postwelding is without slag, forming | Surface flawless |
| E | Arc stability is good, easy arc striking | Postwelding is without slag, forming | Surface flawless |
| F | Arc stability is good, easy arc striking | Postwelding is without slag, forming | There is micro-crack on surface |
Embodiment 5
The high temperature wear of distribution chute liner can reduce the hardness of liner plate, be affected to its wear-resisting property, in material
Under continuous impact, the failure of liner plate is accelerated.To ensure the wearability of material under high temperature, 16Mn steel plate conducts are selected in this implementation
Base material carries out welding technological properties and correlation test using welding wire A~F.The correspondence built-up welding that welding wire A~F will be used to obtain first
Test sample block is slowly cooled to room temperature, with micro- Rockwell using 750 DEG C, 800 DEG C and 850 DEG C progress high-temperature heat treatments after keeping the temperature 3h
Hardometer test specimens block hardness, Fig. 1 are the Rockwell hardness micro-hardness testing figure of sample C, are carried out with not thermally treated sample block
Compare, the hardness of each sample block, which is randomly choosed after 5 points are tested, to be averaged, and the results are shown in Table 3, from table 3 it can be seen that working as
When temperature is no more than 800 DEG C, high-temperature heat treatment influences very little to the hardness of overlay welding experiment sample block, when temperature reaches 850 DEG C, makes
It is obviously reduced with the sample block hardness of A~F welding wires.In addition, sample block is also carried out abrasive grain wear test under the same conditions, test
Time is 15min, is obtained a result as shown in table 4, from table 4, it can be seen that when temperature is no more than 800 DEG C, high-temperature heat treatment pair
The influence of the abrasive wear resistance of overlay welding experiment sample block is smaller, when temperature reaches 850 DEG C, using in the sample block of A~F welding wires, removes
Other than the sample block of C welding wires, the abrasive wear waste of remaining sample block significantly increases, and the present embodiment is also observed and welded using C
The microstructure of the sample block of silk, metallographic structure figures of the Fig. 2 for the sample block using C welding wires, Fig. 3 are micro- for the sample block using C welding wires
See organization chart.
3 rockwell hardness testing result of table
4 sample block abrasive grain wear test result of table
Claims (10)
1. a kind of heat resistant and wear resistant grain for distributor chute wears welding wire, including medicine core and crust, which is characterized in that the medicine
The ingredient of core is by mass percentage：
Hafnium metal powfer 16~30%,
Molybdenum-iron 5~15%,
Tungsten carbide 0.8~5%,
Niobium powder 3~12%,
Ferro-boron 0.8~7%,
Titanium dioxide 0.3~5%,
Silica 1~5%,
Manganese metal 0.9~5%,
Rare earth addition 0.3~6%,
Copper powder 0.02~0.1%,
Surplus is iron powder.
2. heat resistant and wear resistant grain according to claim 1 wears welding wire, which is characterized in that the hafnium metal powfer chrome content
More than 95%.
3. heat resistant and wear resistant grain according to claim 1 wears welding wire, which is characterized in that the molybdenum-iron amount containing molybdenum is
70%.
4. heat resistant and wear resistant grain according to claim 1 wears welding wire, which is characterized in that the tungsten carbide tungstenic amount is big
In 95%.
5. heat resistant and wear resistant grain according to claim 1 wears welding wire, which is characterized in that the ferro-boron boron content is
21%.
6. heat resistant and wear resistant grain according to claim 1 wears welding wire, which is characterized in that the rare earth addition is
CeO2And La2O3Mixture.
7. heat resistant and wear resistant grain according to claim 6 wears welding wire, which is characterized in that CeO in the mixture2With
La2O3Weight ratio be (2~5):1.
It is 8. a kind of if claim 1~7 any one of them is for the preparation of the heat resistant and wear resistant grain abrasion welding wire of distributor chute
Method, which is characterized in that include the following steps：
(1) it after each material powder is mixed evenly by proportioning, is put into stove and is dried 2 hours in 180~200 DEG C, obtain medicine
Core powder；
(2) mild steel steel band is rolled into U-type groove, the medicine core powder that step (1) obtains is packed into U-type groove, then pass through into
Type machine is closed after type groove is rolled and drawing, obtains flux-cored wire；
(3) finally flux-cored wire prepared by step (2) is stretched with wire drawing machine.
A kind of 9. preparation method of heat resistant and wear resistant grain abrasion welding wire as claimed in claim 8, which is characterized in that step (2)
Described in medicine core powder filling rate be 49~52%.
A kind of 10. preparation method of heat resistant and wear resistant grain abrasion welding wire as claimed in claim 8, which is characterized in that step (2)
Described in the standard of drawing reach 2.8~3.2mm for the diameter of flux-cored wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404976.5A CN108145340B (en) | 2017-12-22 | 2017-12-22 | High-temperature-resistant abrasive-particle-wear-resistant welding wire for distribution chute and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404976.5A CN108145340B (en) | 2017-12-22 | 2017-12-22 | High-temperature-resistant abrasive-particle-wear-resistant welding wire for distribution chute and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108145340A true CN108145340A (en) | 2018-06-12 |
| CN108145340B CN108145340B (en) | 2020-09-29 |
Family
ID=62465090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711404976.5A Active CN108145340B (en) | 2017-12-22 | 2017-12-22 | High-temperature-resistant abrasive-particle-wear-resistant welding wire for distribution chute and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108145340B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943796A (en) * | 2019-03-21 | 2019-06-28 | 珠海弘德表面技术有限公司 | A kind of thermal spraying material and preparation method thereof of resistance to molten aluminum etch |
| CN110116281A (en) * | 2019-03-21 | 2019-08-13 | 珠海弘德表面技术有限公司 | A kind of self-shielded welding wire of high temperature wear resistant |
| CN113146094A (en) * | 2021-02-04 | 2021-07-23 | 苏州鑫之泰焊接材料有限公司 | High-hardness crack-free boron-containing hardfacing flux-cored wire |
| CN113584479A (en) * | 2021-07-13 | 2021-11-02 | 山西滨腾机械有限公司 | Chute composite lining plate and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60501460A (en) * | 1983-05-30 | 1985-09-05 | ヴィッカ−ズ・オ−ストラリア・リミテッド | wear resistant material |
| JPH0679455A (en) * | 1992-06-15 | 1994-03-22 | Kurimoto Ltd | Multilayer cladding method by welding by high hardness metal on divided type annular body |
| CN101537548A (en) * | 2008-03-21 | 2009-09-23 | 高智海 | Flux-cored welding wire for overlaying welding and application thereof |
| CN101602152A (en) * | 2009-07-23 | 2009-12-16 | 王祖胜 | The flux-cored wire that is used for concrete pump S pipe valve, cheater plate and wear ring |
| CN102744532A (en) * | 2011-04-19 | 2012-10-24 | 王新虎 | Iron-based abrasion resisting and reducing surfacing flux-cored wire |
-
2017
- 2017-12-22 CN CN201711404976.5A patent/CN108145340B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60501460A (en) * | 1983-05-30 | 1985-09-05 | ヴィッカ−ズ・オ−ストラリア・リミテッド | wear resistant material |
| JPH0679455A (en) * | 1992-06-15 | 1994-03-22 | Kurimoto Ltd | Multilayer cladding method by welding by high hardness metal on divided type annular body |
| CN101537548A (en) * | 2008-03-21 | 2009-09-23 | 高智海 | Flux-cored welding wire for overlaying welding and application thereof |
| CN101602152A (en) * | 2009-07-23 | 2009-12-16 | 王祖胜 | The flux-cored wire that is used for concrete pump S pipe valve, cheater plate and wear ring |
| CN102744532A (en) * | 2011-04-19 | 2012-10-24 | 王新虎 | Iron-based abrasion resisting and reducing surfacing flux-cored wire |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943796A (en) * | 2019-03-21 | 2019-06-28 | 珠海弘德表面技术有限公司 | A kind of thermal spraying material and preparation method thereof of resistance to molten aluminum etch |
| CN110116281A (en) * | 2019-03-21 | 2019-08-13 | 珠海弘德表面技术有限公司 | A kind of self-shielded welding wire of high temperature wear resistant |
| CN110116281B (en) * | 2019-03-21 | 2021-02-09 | 珠海弘德表面技术有限公司 | High-temperature-wear-resistant self-protection welding wire |
| CN113146094A (en) * | 2021-02-04 | 2021-07-23 | 苏州鑫之泰焊接材料有限公司 | High-hardness crack-free boron-containing hardfacing flux-cored wire |
| CN113146094B (en) * | 2021-02-04 | 2024-01-09 | 苏州鑫之泰焊接材料有限公司 | High-hardness crack-free boron-containing hardfacing flux-cored wire |
| CN113584479A (en) * | 2021-07-13 | 2021-11-02 | 山西滨腾机械有限公司 | Chute composite lining plate and preparation method thereof |
| CN113584479B (en) * | 2021-07-13 | 2023-10-27 | 山西滨腾机械有限公司 | Chute composite lining plate and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108145340B (en) | 2020-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105397335B (en) | Water cooling grate plate, material scraping plate flux-cored welding wire for overlaying welding | |
| CN108145340A (en) | A kind of heat resistant and wear resistant grain for distributor chute wears welding wire and preparation method | |
| CN100463762C (en) | Half steel roller submerged arc building-up flux-cored wire | |
| CN102773627A (en) | High-hardness hardfacing alloy powder | |
| CN105414798A (en) | Flux-cored wire for coke-breaking roll overlaying welding | |
| CN102029482A (en) | Gas-shielded overlaying flux cored soldering wire for repairing hot-forging mould | |
| CN102513742A (en) | Flux-cored wire for visible arc overlaying of high-chromium cast iron | |
| CN109338214B (en) | High-strength high-toughness steel for rock drilling tool and production method thereof | |
| CN106567005A (en) | Powder-metallurgic valve seat ring of CNG engine | |
| CN106956094A (en) | A kind of hard-facing alloys material | |
| CN109702382A (en) | A kind of welding material and its welding method of the military service for a long time of suitable hot conditions | |
| CN103785976A (en) | Hot roll surfacing submerged arc flux-cored welding wire and preparation method for same | |
| CN1603055A (en) | Flux-cored wire for backing roll build-up welding | |
| CN104611640B (en) | A kind of high boron iron-based sherardizing steel alloy and preparation method thereof | |
| CN102744533A (en) | Build-up welding flux-cored wire for pinch roll | |
| CN108406161A (en) | A kind of flux-cored wire and preparation method thereof of the wear-resisting grinding abrasion of high-performance rare-earth | |
| CN102240868A (en) | High-tenacity wear-resisting overlaying alloy welding wire for cold-rolling support roller | |
| CN107363431B (en) | A kind of self-shield open arc built-up welding austenitic matrix flux-cored wire and its application method | |
| CN113547251B (en) | Wire material suitable for hot forging die arc fuse wire additive manufacturing and preparation method thereof | |
| CN109355656A (en) | A kind of flux-cored wire for laser melting coating | |
| CN111618478B (en) | Low-manganese gas shielded welding wire suitable for ultralow heat input automatic welding and welding method thereof | |
| CN112122824B (en) | Gas shield welding stainless steel welding wire with high hardness and strong acid corrosion resistance as well as preparation method and application thereof | |
| CN110900033A (en) | Gas shielded mineral powder type 314 heat-resistant stainless steel flux-cored wire | |
| CN116713637B (en) | Flux-cored wire for build-up welding and material increase of fan-shaped section continuous casting roller, and preparation method and application thereof | |
| CN108393605A (en) | High-temperature wearable welding rod and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |