CN103990920B - A kind of hardfacing electrode - Google Patents
A kind of hardfacing electrode Download PDFInfo
- Publication number
- CN103990920B CN103990920B CN201410223231.9A CN201410223231A CN103990920B CN 103990920 B CN103990920 B CN 103990920B CN 201410223231 A CN201410223231 A CN 201410223231A CN 103990920 B CN103990920 B CN 103990920B
- Authority
- CN
- China
- Prior art keywords
- parts
- coating
- raw material
- alloying constituent
- temperature drying
- 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.)
- Expired - Fee Related
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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
- B23K35/22—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
- B23K35/3093—Fe as the principal constituent with other elements as next major constituents
-
- 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
- B23K35/404—Coated rods; Coated electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention proposes a kind of hardfacing electrode and preparation method thereof, it is related to welding field, the hardfacing electrode includes coating and the core wire being wrapped in coating, and the coating preparing raw material includes coating alloying constituent, and the preparing raw material of coating alloying constituent includes the raw material of following weight parts proportioning：C is 5 8.8 parts, and Cr is 35 57.5 parts, and Mn is 6 10.5 parts, and W is 11.3 50 parts, and Mo is 3.8 12 parts, and B is 5 7.5 parts, and Si is 3.8 6.3 parts.Present invention also offers a kind of preparation method of foregoing wear surfacing welding, the preparation method is mainly weighed including raw material, batch mixing, suppress, dry, low temperature drying and high temperature baking step.The hardfacing electrode obtained according to preparation scheme of the present invention has deposited metal composition uniformity good, and not only hardness is high, residue easy-clear advantage for the overlay cladding of formation.
Description
Technical field
The present invention relates to welding field, more particularly to a kind of hardfacing electrode and preparation method thereof.
Background technology
The fast development of national economy proposes higher and higher requirement to high-abrasive material with the continuous progress of science and technology,
The surface abrasion resistance for improving material has various methods：Such as thermal spraying, ion film plating, plating and built-up welding.These methods respectively have excellent
Shortcoming, the shortcoming of preceding several method is thin coating, and required equipment is complicated, and some coating also needs to be processed by complicated postorder.
Built-up welding is a kind of conventional reinforcing material wearability and simple, the quick method of repairing wear-resisting spare part.
Traditional hardfacing bar hardness number is difficult more than HRA70.Even WC hardfacing electrode hardness is also very
Hardly possible is more than HRA85, and the WC hardfacing electrodes one more than HRA85 are prices high on a small quantity, and two is poor toughness, and three is to structure
The repair ability of part is poor.So researching and developing, a kind of hardness number is higher, the lower hardfacing electrode of cost becomes research staff
The direction of effort.
The content of the invention
The present invention proposes a kind of hardfacing electrode and preparation method thereof, solves deficiency of the prior art, improves
The hardness of surfacing welding, preparation method step of the invention is simple and easy to do, and required equipment is simple, and low production cost.
A kind of hardfacing electrode of the present invention, including coating and the core wire being wrapped in coating, the preparing raw material of the coating
Including coating alloying constituent, the preparing raw material of the coating alloying constituent includes the raw material of following weight parts proportioning：C is 5-8.8 parts, Cr
It it is 35-57.5 parts, Mn is 6-10.5 parts, W is 11.3-50 parts, Mo is 3.8-12 parts, B is 5-7.5 parts, Si is 3.8-6.3 parts.
Further, C, Cr, Mn, W, Mo, B, Si are powder raw material, and their granularity is all the mesh of 80 mesh -200.
Further, the material of core wire is low-alloy steel.
Further, a diameter of 3.2mm-5mm of core wire, coating external diameter is 2-2.5 with the ratio of electrode size.
Present invention also offers the preparation method of foregoing wear surfacing welding, comprise the following steps：
Step one, coating alloying constituent raw material is weighed and dry method batch mixing：Weigh the raw material of following weight parts proportioning, 5-8.8
B, 3.8-6.3 of Mo, 5-7.5 part of W, 3.8-12 part of Mn, 11.3-50 part of Cr, 6-10.5 part of C, 35-57.5 part of part
The Si of part, weighs and finishes rear batch mixing and stir；
Step 2, material by wet type mixing：To the waterglass that 2-9 parts is added in the batch mixing that step one stirs, stir, obtain
To coating alloying constituent；
Step 3, the extrusion forming of surfacing welding：Coating alloying constituent described in step 2 is uniformly squeezed in around core wire；
Step 4, room temperature is air-dried, low temperature drying and high temperature dry welding rod：The welding rod that extrusion forming described in step 3 is obtained
2-8h being air-dried at ambient temperature, the welding rod air-dried after finishing being carried out into low temperature drying treatment, drying for the low temperature drying is warm
It is 100-150 DEG C to spend, and the low temperature drying time is 2-3h, and the welding rod after low temperature drying is finished carries out high temperature drying and processing, described
The drying temperature of high temperature drying is 250-350 DEG C, and high temperature drying time is 2-3h.
It is worth noting that, abovementioned steps three are in concrete application, appropriate water can be added according to actual conditions, made each
Coating alloying constituent raw material preferably sticks together.Accordingly, before step 3, understood according to conventional published technology,
Extrude in the preparation process of shaping prodrug skin, deoxidier, reducing agent, arc stabilizer etc. can be added with.
Compared with prior art, beneficial effects of the present invention are as follows：
First, deposited metal composition uniformity is good；
Second, the overlay cladding formed using surfacing welding of the present invention not only hardness is high, and other toughness etc. are comprehensive
Machine capability, mechanical property are also more outstanding；
Third, surfacing welding low cost of the present invention, making step is simple and easy to do, and required equipment is also relatively simple, is conducive to
The popularization and application of business；
Fourth, the processing performance of surfacing welding of the present invention is good, easily ignite, electric arc is smooth, coating fusing is uniform, fly without excessive
Splash and easily scarfing cinder；
Fifth, the surfacing welding preparation method that the present invention is provided, in the product drying stage, employs substep gently dried
Mode, i.e., successively through room temperature air-dry, low temperature drying, high temperature dry the step of.This method can make moisture in welding rod progressively
It is slow to be lost in, the welding rod forming of acquisition, situations such as be less prone to cracking.
Specific embodiment
The technical scheme in the present invention is clearly and completely described below, it is clear that described embodiment is only
Several embodiments therein of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
Embodiment 1：A kind of hardfacing electrode and preparation method thereof
The hardfacing electrode coating of the present embodiment and the core wire being wrapped in coating, it is characterised in that：The coating system
Standby raw material includes coating alloying constituent, and the preparing raw material of the coating alloying constituent includes the raw material of following weight parts proportioning：C is 5 parts,
Cr is 35 parts, and Mn is 6 parts, and W is 11.3 parts, and Mo is 3.8 parts, and B is 5 parts, and Si is 3.8 parts.
The preparation scheme of the present embodiment hardfacing electrode is as follows：
1st, coating alloying constituent raw material is weighed and dry method batch mixing：Weigh the raw material of following weight percentage, 5 parts of C, 35 parts
Cr, 6 parts of Mn, 11.3 parts of W, 3.8 parts of Mo, 5 parts of B, 3.8 parts of Si, weigh and close foregoing all coatings after finishing
Golden agent raw material is mixed together and stirred.C, Cr, Mn, W, Mo, B, Si that the present embodiment is used are powder raw material, they
Granularity be 80 mesh.
2nd, material by wet type mixing：To the waterglass that 2 parts are added in the batch mixing that step 1 stirs, stir, obtain coating conjunction
Golden agent；
3rd, the extrusion forming of surfacing welding：The uniform coating alloying constituent of step 2 batch mixing is uniformly squeezed in around core wire,
Core wire selects low-alloy steel core wire, and a diameter of 3.2mm of core wire, coating external diameter is 2 with the ratio of electrode size.
4th, room temperature is air-dried, low temperature drying and high temperature dry welding rod：The welding rod that extrusion forming described in step 3 is obtained is in room temperature bar
2h is air-dried under part, the welding rod air-dried after finishing is carried out into low temperature drying treatment, the drying temperature of the low temperature drying is 100 DEG C,
The low temperature drying time is 2h, and the welding rod after low temperature drying is finished carries out high temperature drying and processing, and drying for the high temperature drying is warm
It is 250 DEG C to spend, and high temperature drying time is 2h.High temperature drying obtains the hardfacing electrode of the present embodiment after finishing.
Embodiment 2：A kind of hardfacing electrode and preparation method thereof
The hardfacing electrode of the present embodiment includes coating and the core wire being wrapped in coating, it is characterised in that：The medicine
Skin preparing raw material includes coating alloying constituent, and the preparing raw material of the coating alloying constituent includes the raw material of following weight parts proportioning：C is
6.5 parts, Cr is 46 parts, and Mn is 8 parts, and W is 30 parts, and Mo is 8 parts, and B is 6 parts, and Si is 5 parts.
The preparation scheme of the present embodiment hardfacing electrode is as follows：
1st, coating alloying constituent raw material is weighed and batch mixing：Weigh the raw material of following weight percentage, 6.5 parts of C, 46 parts
Cr, 8 parts of Mn, 30 parts of W, 8 Mo, 6 parts of B, 5 parts of Si, weigh and mix foregoing all coating alloying constituent raw materials after finishing
Together and stir.C, Cr, Mn, W, Mo, B, Si that the present embodiment is used are powder raw material, and their granularity is
140 mesh.
2nd, material by wet type mixing：To the waterglass that 5.5 parts are added in the batch mixing that step 1 stirs, stir, obtain coating
Alloying constituent；
3rd, the extrusion forming of surfacing welding：The uniform coating alloying constituent of step 2 batch mixing is uniformly squeezed in around core wire,
Core wire selects low carbon steel welding core, and a diameter of 5mm of core wire, coating external diameter is 2.5 with the ratio of electrode size.
4th, room temperature is air-dried, low temperature drying and high temperature dry welding rod：The welding rod that extrusion forming described in step 3 is obtained is in room temperature
Under the conditions of air-dry 5h, the welding rod air-dried after finishing is carried out into low temperature drying treatment, the drying temperature of the low temperature drying is 125
DEG C, the low temperature drying time is 2.5h, and the welding rod after low temperature drying is finished carries out high temperature drying and processing, and it is dry that the high temperature is dried
Dry temperature is 300 DEG C, and high temperature drying time is 2.5h.High temperature drying obtains the hardfacing electrode of the present embodiment after finishing.
Embodiment 3：A kind of hardfacing electrode and preparation method thereof
The hardfacing electrode of the present embodiment includes coating and the core wire being wrapped in coating, it is characterised in that：The medicine
Skin preparing raw material includes coating alloying constituent, and the preparing raw material of the coating alloying constituent includes the raw material of following weight parts proportioning：C is
8.8 parts, Cr is 57.5 parts, and Mn is 10.5 parts, and W is 50 parts, and Mo is 12 parts, and B is 7.5 parts, and Si is 6.3 parts.
The preparation scheme of the present embodiment hardfacing electrode is as follows：
1st, coating alloying constituent raw material is weighed and dry method batch mixing：Weigh the raw material of following weight percentage, 8.8 parts of C,
57.5 parts of Cr, 10.5 parts of Mn, 50 parts of W, 12 parts of Mo, 7.5 parts of B, 6.3 parts of Si, weigh foregoing institute after finishing
There is coating alloying constituent raw material to mix together and stir.C, Cr, Mn, W, Mo, B, Si that the present embodiment is used are powdery
Raw material, their granularity is 200 mesh.
2nd, material by wet type mixing：To the waterglass that 9 parts are added in the batch mixing that step 1 stirs, stir, obtain coating conjunction
Golden agent；
3rd, the extrusion forming of surfacing welding：Coating alloying constituent described in step 2 is uniformly squeezed in around core wire, core wire choosing
Use low-alloy steel core wire.
4th, room temperature is air-dried, low temperature drying and high temperature dry welding rod：The welding rod that extrusion forming described in step 3 is obtained is in room temperature
Under the conditions of air-dry 8h, the welding rod air-dried after finishing is carried out into low temperature drying treatment, the drying temperature of the low temperature drying is 150
DEG C, the low temperature drying time is 3h, and the welding rod after low temperature drying is finished carries out high temperature drying and processing, the drying of the high temperature drying
Temperature is 350 DEG C, and high temperature drying time is 3h.Drying obtains the hardfacing electrode of the present embodiment after finishing.
The hardfacing electrode that above three embodiment is obtained is resistance to common commercially available traditional hardfacing electrode and WC
Mill surfacing welding respectively chooses 50 and under equal conditions makees hardness test, and the average HRA values of hardness test result are listed in table 1.
Table 1
| Average HRA values | |
| Traditional hardfacing electrode | 70 |
| WC hardfacing electrodes | 82 |
| Embodiment 1 | 84 |
| Embodiment 2 | 86 |
| Embodiment 3 | 87 |
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (4)
1. a kind of hardfacing electrode, including coating and the core wire being wrapped in coating, it is characterised in that：The coating prepares former
Material includes coating alloying constituent, and the preparing raw material of the coating alloying constituent includes the raw material of following weight parts proportioning：C is 5-8.8 parts,
Cr is 35-57.5 parts, and Mn is 6-10.5 parts, and W is 11.3-50 parts, and Mo is 3.8-12 parts, and B is 5-7.5 parts, and Si is 3.8-6.3
Part；
The method for preparing the hardfacing electrode comprises the following steps：
Step one, coating alloying constituent raw material is weighed and dry method batch mixing：The raw material of following weight parts proportioning is weighed, 5-8.8 parts
B, 3.8-6.3 part of Mo, 5-7.5 part of W, 3.8-12 part of Mn, 11.3-50 part of Cr, 6-10.5 part of C, 35-57.5 part
Si, weighs and finishes rear batch mixing and stir；
Step 2, material by wet type mixing：To the waterglass that 2-9 parts is added in the batch mixing that step one stirs, stir, obtain medicine
Skin alloying constituent；
Step 3, the extrusion forming of surfacing welding：Coating alloying constituent described in step 2 is uniformly squeezed in around core wire；
Step 4, room temperature is air-dried, low temperature drying and high temperature dry welding rod：The welding rod that extrusion forming described in step 3 is obtained is in room
2-8h is air-dried under the conditions of temperature, the welding rod air-dried after finishing is carried out into low temperature drying treatment, the drying temperature of the low temperature drying is
100-150 DEG C, the low temperature drying time is 2-3h, and the welding rod after low temperature drying is finished carries out high temperature drying and processing, the high temperature
The drying temperature of drying is 250-350 DEG C, and high temperature drying time is 2-3h.
2. a kind of hardfacing electrode according to claim 1, it is characterised in that：Described C, Cr, Mn, W, Mo, B, Si are
It is powder raw material, its granularity is all the mesh of 80 mesh -200.
3. a kind of hardfacing electrode according to claim 1, it is characterised in that：The material of the core wire is low-alloy
Steel.
4. a kind of hardfacing electrode according to claim 1, it is characterised in that：A diameter of 3.2mm- of the core wire
5mm, coating external diameter is 2-2.5 with the ratio of electrode size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223231.9A CN103990920B (en) | 2014-05-23 | 2014-05-23 | A kind of hardfacing electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410223231.9A CN103990920B (en) | 2014-05-23 | 2014-05-23 | A kind of hardfacing electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103990920A CN103990920A (en) | 2014-08-20 |
| CN103990920B true CN103990920B (en) | 2017-06-09 |
Family
ID=51305392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410223231.9A Expired - Fee Related CN103990920B (en) | 2014-05-23 | 2014-05-23 | A kind of hardfacing electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103990920B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181133A (en) * | 2016-08-05 | 2016-12-07 | 雷春生 | A kind of preparation method of high-hardness wear-resisting bead welding rod |
| CN107234364A (en) * | 2017-06-12 | 2017-10-10 | 合肥欧仕嘉机电设备有限公司 | It is a kind of for wear resistance electrode of built-up welding and preparation method thereof |
| CN110270775B (en) * | 2019-04-23 | 2020-12-29 | 安徽科技学院 | A kind of metal powder-cored flux-cored welding wire for anti-neutron irradiation steel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3823030A (en) * | 1972-10-18 | 1974-07-09 | Dresser Ind | Method of making a bearing system having entrained wear-resistant particles |
| CN1152491A (en) * | 1995-12-18 | 1997-06-25 | 邢台神光焊接有限公司 | Surfacing welding electrode for roller |
| CN101402161A (en) * | 2008-11-07 | 2009-04-08 | 山东大学 | Abrasive wear resistant weld deposit flux-cored wire |
| CN101870046A (en) * | 2010-06-03 | 2010-10-27 | 辽宁工程技术大学 | A high-impact and wear-resistant surface surfacing alloy material |
| CN102498228A (en) * | 2009-08-10 | 2012-06-13 | 纳米钢公司 | Feedstock powder for production of high hardness overlays |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3287865B2 (en) * | 1991-09-27 | 2002-06-04 | トヨタ自動車株式会社 | Cobalt-based alloy with excellent wear resistance and aggressiveness |
-
2014
- 2014-05-23 CN CN201410223231.9A patent/CN103990920B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3823030A (en) * | 1972-10-18 | 1974-07-09 | Dresser Ind | Method of making a bearing system having entrained wear-resistant particles |
| CN1152491A (en) * | 1995-12-18 | 1997-06-25 | 邢台神光焊接有限公司 | Surfacing welding electrode for roller |
| CN101402161A (en) * | 2008-11-07 | 2009-04-08 | 山东大学 | Abrasive wear resistant weld deposit flux-cored wire |
| CN102498228A (en) * | 2009-08-10 | 2012-06-13 | 纳米钢公司 | Feedstock powder for production of high hardness overlays |
| CN101870046A (en) * | 2010-06-03 | 2010-10-27 | 辽宁工程技术大学 | A high-impact and wear-resistant surface surfacing alloy material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103990920A (en) | 2014-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103496866B (en) | A kind of hud typed cement base high-strength light aggregate processing method | |
| CN101825200B (en) | Titanium alloy TC4 hot-rolled tube and production method thereof | |
| CN103990920B (en) | A kind of hardfacing electrode | |
| CN110516402B (en) | Method for optimizing scrap steel ingredients of electric arc furnace | |
| CN109266992B (en) | A kind of preparation method of high temperature wear-resistant alumina ceramic matrix composite coating | |
| CN106904922A (en) | A kind of preparation method of ardealite base exterior wall internal insulation anticracking grout | |
| JP2000515070A (en) | High-hardness, wear-resistant flux cored wire | |
| CN102887679B (en) | Preparation method of high-strength fully-recycled coarse aggregate concrete | |
| CN103031389A (en) | Modified leather finishing agent and preparation method thereof | |
| CN104388155A (en) | Metal spinning powder and preparation method thereof | |
| CN105399363A (en) | Admixture for high-fluidity concrete and preparing method thereof | |
| CN107857562A (en) | Biscuit of ceramics and preparation method thereof | |
| CN105622161A (en) | Cement-based lightweight foam composite material and preparation method thereof | |
| CN102689115A (en) | High-toughness and high-strength steel electrode for 60kg all position welding | |
| CN107311539A (en) | Building waste baking-free brick and preparation method thereof | |
| CN107175426B (en) | A kind of self-shield flux-cored wire and preparation method thereof for heavy-duty forging die tool surface peening | |
| CN104674000A (en) | Manganese-silicon-carbon ball for steel making and preparation method thereof | |
| CN109797391A (en) | A kind of preparation method of wind power bearing low dilution rate FeCrCoNiMoTi high-entropy alloy powder and its cladding layer | |
| CN105463447A (en) | Double-alloy integral sleeve and manufacturing method thereof | |
| CN108689644A (en) | A kind of quick-coagulating high-strength concrete and preparation method thereof | |
| WO2014169454A1 (en) | Environmentally friendly stone paper as furniture veneer, and preparation method therefor | |
| CN106478048A (en) | Phosphogypsum bearing perforated brick and preparation method thereof | |
| CN102400083A (en) | Chromium carbide ceramic hot spraying flux-cored wire | |
| CN105170973B (en) | A kind of wear resistant corrosion resistant coating material and the method applied to steel pipe | |
| CN110156419A (en) | Adaptable high-intensitive self-repair type building environment-friendly materials and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20200523 |