CN104451536A - Method for rapidly boriding Q235 steel - Google Patents
Method for rapidly boriding Q235 steel Download PDFInfo
- Publication number
- CN104451536A CN104451536A CN201410765715.6A CN201410765715A CN104451536A CN 104451536 A CN104451536 A CN 104451536A CN 201410765715 A CN201410765715 A CN 201410765715A CN 104451536 A CN104451536 A CN 104451536A
- Authority
- CN
- China
- Prior art keywords
- steel
- boronising
- boriding
- agent
- boronizing agent
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/68—Boronising
- C23C8/70—Boronising of ferrous surfaces
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/02—Pretreatment of the material to be coated
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a method for rapidly boriding Q235 steel. The method comprises the following steps: firstly, carrying out shot blasting treatment on a single surface of Q235 steel by adopting a supersonic fine particle bombarding technology, so that the texture of a shot blasting surface is refined to nanoscale; and carrying out boriding treatment on the Q235 steel in a sealed boriding tank by adopting a powder boronizing agent which is prepared from 10%-15% of a boron supplying agent, 10%-15% of a boronizing activator, 8%-12% of cerium oxide, 15%-25% of activated carbon and 40%-55% of silicon carbide. By adopting the method in which shot blasting nanocrystallization on a work-piece surface and then boriding by using a rapid boronizing agent are combined, so that the boriding temperature is lowered, the boriding time is shortened; a relatively deep boriding layer is obtained under the same boriding process condition; the obtained boriding layer is a Fe2B single-phase boride with high compactness and good performance; and the targets of saving energy, reducing emission and reducing cost are achieved.
Description
Technical field
The invention belongs to technical field of material modification, be specifically related to the method for the quick boronising of a kind of Q235 steel.
Background technology
Boriding process can be divided into solid process, liquid method, gas method, ion method etc., how generally to adopt pack boriding method both at home and abroad at present, particularly powder boriding, it has does not need specific installation, technique is simple, implement easily, osmosis work-piece does not need cleaning, penetration enhancer reusability is good, iron and steel parts all can the advantage such as boronising, after adopting the boronising of powder boriding method, workpiece all can obtain the boride layer of high rigidity, and alloying layer thickness and tissue easily control, therefore, it is that a kind of cost is lower, the boronizing method of less investment instant effect, also be obtain at present more inexpensively wear-resisting, heat-resisting, the heat treating method of etch resistant properties, very there is development prospect.But, the processing parameter of pack boriding only has temperature and time, boronising temperature is generally at 850 ~ 1050 DEG C, time 3 ~ 16h, temperature is high, the time is long, not only consume energy but also time-consuming, do not meet the modern production theory of energy-saving and emission-reduction, realizing low temperature, in short-term boronizing technology is the technology " bottleneck " being eager at present to solve.
In addition, for the configuration aspects of workpiece after boronising, control to obtain single Fe by boriding process
2b compound layer or FeB+Fe
2b, due to Fe
2b is less compared with FeB phase fragility, and two-phase structure can produce larger stress at two different intermetallic compounds in addition, obtains single-phase Fe during practical application
2b tissue is technically desired.
Summary of the invention
The object of this invention is to provide the method for the quick boronising of a kind of Q235 steel, solve that the temperature that boronizing method in prior art exists is high, the time long and not easily obtain single-phase Fe
2the technical problem of B tissue.
The technical solution adopted in the present invention is, the method for the quick boronising of a kind of Q235 steel, comprises the following steps:
The surface treatment of step 1:Q235 steel
1.1, adopt supersonic fine particles bombarding to carry out shot peening to Q235 steel monoplanar surface;
1.2, the Q235 steel after shot peening is cleaned with acetone in Ultrasonic Cleaners;
Step 2: prepare powder boronizing agent
By massfraction, take boron supplying agent 10 ~ 15%, boronising activator 10 ~ 15%, cerium oxide 8 ~ 12%, activated carbon 15 ~ 25%, silicon carbide 40 ~ 55% mixes, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C;
Step 3: carry out Bononizing pretreatment to the Q235 steel curved beam after surface treatment in step 1, concrete technology is as follows:
3.1, boronising sealed can is dried 1 ~ 1.5h at 100 DEG C;
3.2, being imbedded by Q235 steel is equipped with in the boronising sealed can of powder boronizing agent prepared by step 2, be warming up to 800 ~ 900 DEG C of continuation insulation 1 ~ 2h with stove be incubated 1.5 ~ 2.5h at 550 ~ 600 DEG C in retort furnace after and carry out Bononizing pretreatment, after boronising completes, boronising sealed can is taken out from retort furnace, air cooling is to normal temperature in atmosphere, namely completes.
Feature of the present invention is also,
Supersonic fine particles bombarding to the technique that Q235 steel carries out monoplanar surface shot peening is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min.
Boron supplying agent is selected from the one in norbide, ferro-boron, boron trioxide, borax.
Boronising activator is selected from the one in Sodium Silicofluoride, ammonium chloride, Potassium monofluoride, potassium fluoborate, sodium carbonate, Ammonium bicarbonate food grade, thiocarbamide.
The invention has the beneficial effects as follows, boronising activator in the powder boronizing agent adopted and the synergistic effect of cerium oxide accelerate boronizing agent to Q235 steel boronizing process, in addition, the method of boronising will be carried out again in conjunction with quick boronizing agent after workpiece surface shot-peening nanometer, not only reduce boronising temperature, shorten the boronising time, and darker boride layer can be obtained under identical boriding process condition, and the boride layer obtained is the Fe that density is high, performance is good
2the single-phase boride of B.Therefore, the boride layer surface hardness adopting boronizing method of the present invention to obtain is high, and hardness gradient is good, reaches energy-saving and emission-reduction, the object reduced costs.
Accompanying drawing explanation
Fig. 1 is the microsturcture shape appearance figure of Q235 steel at boronising temperature is 600 DEG C after boronising 2h;
Fig. 2 is the microsturcture shape appearance figure after the Q235 steel in the present invention is warming up to again 900 DEG C of boronising 2h after boronising 2h at boronising temperature is 600 DEG C;
Fig. 3 is Q235 steel in the present invention is warming up to again with micro indentation after 900 DEG C of boronising 2h at boronising temperature is 600 DEG C microsturcture shape appearance figure after boronising 2h;
Fig. 4 is the top layer X-ray diffraction spectrogram after the shot-peening face of Q235 steel in the present invention is warming up to again 900 DEG C of boronising 2h after boronising 2h at boronising temperature is 600 DEG C.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail.
The method of the quick boronising of a kind of Q235 steel of the present invention, comprises the following steps:
The surface treatment of step 1:Q235 steel
Adopt supersonic fine particles bombarding to carry out shot peening to Q235 steel monoplanar surface, its technique is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min, makes the structure refinement in shot-peening face to nano level;
1.2, the Q235 steel after shot peening is being cleaned with acetone in Ultrasonic Cleaners, is keeping Q235 steel curved beam surface clean;
Step 2: prepare powder boronizing agent
By massfraction, take boron supplying agent 10 ~ 15%, boronising activator 10 ~ 15%, cerium oxide 8 ~ 12%, activated carbon 15 ~ 25%, silicon carbide 40 ~ 55% mixes, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C;
Step 3: carry out Bononizing pretreatment to the Q235 steel curved beam after shot-peening in step 1, concrete technology is as follows:
3.1, boronising sealed can is dried 1 ~ 1.5h at 100 DEG C;
3.2, being imbedded by Q235 steel is equipped with in the boronising sealed can of powder boronizing agent prepared by step 2, in retort furnace, be warmed up to 800 ~ 900 DEG C of continuation insulation 1 ~ 2h with stove after 550 ~ 600 DEG C of insulation 1.5 ~ 2.5h carry out Bononizing pretreatment, after boronising completes, boronising sealed can is taken out from retort furnace, in atmosphere air cooling.
Wherein, boron supplying agent is selected from the one in norbide, ferro-boron, boron trioxide, borax; Boronising activator is selected from the one in Sodium Silicofluoride, ammonium chloride, Potassium monofluoride, potassium fluoborate, sodium carbonate, Ammonium bicarbonate food grade, thiocarbamide, rare earth oxide.
In powder boronizing agent, boron supplying agent plays a part, for boron, in boronizing process, to produce activated boron atoms; Boronising activator makes workpiece surface keep " activation " (or " cleaning ") state, makes boron atom easily be adsorbed in metallic surface and internally spread, and in the boronizing agent be made up of reductive agent, also has the effect promoting reduction reaction concurrently; Cerium oxide is a kind of RE Boriding agent, plays a part to urge and oozes, be conducive to Fe
2the formation of the single-phase boride of B, can improve hardness and the solidity to corrosion of boride layer; Activated carbon has added high temperature resistance cohesive action, makes boronizing agent non-caked when high temperature, convenient and boronizing agent is reusable when can ensure that workpiece takes out; Silicon carbide plays weighting agent effect, can reduce the adhesion of hardening with boronizing agent and workpiece of boronizing agent, facilitate the taking-up of workpiece, reduce cost.
Q235 steel surface is after supersonic speed bead blasted surfaces nanometer, the diffusion being boron atom due to a large amount of crystal boundaries provides passage, improve the velocity of diffusion of boron atom in boronizing process, simultaneously, the defect of crystal boundary and intracrystalline has higher energy, and the nucleation and growing for boride provides extra motivating force.
With the powder boronizing agent be made up of norbide, Sodium Silicofluoride, cerium oxide, gac and silicon carbide, the reaction mechanism of powder boronizing agent of the present invention when boronising is described below:
Boronising activator Sodium Silicofluoride Na
2siF
6start to decompose 500 DEG C time, that is:
Na
2SiF
6＝2NaF+SiF
4(1)
Its NaF and SiF decomposited
4react with the B in norbide, because boronising tank has included air, participation is reacted by oxygen, and reaction formula is as follows:
2NaF+1/3B+O
2+1/2SiC＝1/3BF
3+1/2Na
2SiO
3+1/2CO (2)
3SiF
4+3O
2+4B＝4BF
3+3SiO
2(3)
(2) BF generated with (3) formula
3will react with the activated carbon in boronizing agent and generate unstable BF
2, reaction formula is as follows:
BF
3+5/4C+O
2＝BF
2+1/4CF
4+CO
2(4)
BF
3also may there is following reaction with SiC:
2BF
3+2SiC+2O
2＝BF
2+[B]+SiO
2+SiF
4+2CO (5)
(4) and (5) formula generate BF
2to decomposition reaction be there is, separate out activated boron atoms.
3BF
2＝[B]+2BF
3(6)
Above-mentioned activated boron atoms contacts with the iron of Q235 specimen surface and generates Fe
2b phase, namely
[B]+2[Fe]＝Fe
2B (7)
The surface of supersonic speed blasting technology process workpiece is adopted to make workpiece surface organize nanometer, and be combined quick boronizing agent Bononizing pretreatment is carried out to workpiece surface, can the boride layer of processability excellence, Q235 steel curved beam surface clean after method Bononizing pretreatment of the present invention, in silver gray, do not have boronizing agent to bond, the Fe that the degree of depth is thicker, density is high performance is good can be obtained
2the single-phase boride of B.
The only boronising at 600 DEG C of Q235 steel can be found out see Fig. 1 ~ Fig. 3, its boronising thickness is 0 μm, Q235 steel in the present invention is warming up to again 900 DEG C of boronising Q235 steel shot-peening face boronising thickness at boronising temperature is 600 DEG C after boronising 2h be 60 μm, there is boronising transition layer, and boride layer surface hardness is high, hardness gradient is good.
See Fig. 4, test result is compared with PDF standard card discovery as seen from the figure, and under boriding process of the present invention, the surface of Q235 steel obtains single Fe
2b phase, and the FeB phase that generally the easy formation in surface is more crisp when ferrous materials boronising, and secondary top layer is only Fe
2b is single-phase.
Embodiment 1
Adopt supersonic fine particles bombarding to carry out monoplanar surface shot peening Q235 steel, its technique is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min, makes the structure refinement in shot-peening face to nano level; Again the Q235 steel after shot peening is cleaned with acetone in Ultrasonic Cleaners, keep Q235 steel curved beam surface clean;
By massfraction, take the boron trioxide of 10%, the Ammonium bicarbonate food grade of 10%, the cerium oxide of 10%, the activated carbon of 15%, the silicon carbide of 55% mix, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C; 1h is dried at boronising sealing is filled in 100 DEG C, being imbedded by Q235 steel is equipped with in the boronising sealed can of above-mentioned powder boronizing agent, 550 DEG C are heated in retort furnace, be warmed up to 800 DEG C of continuation insulation 1.5h with stove after insulation 2h and carry out Bononizing pretreatment, after boronising completes, boronising sealed can is taken out from retort furnace, in atmosphere air cooling.
Q235 steel after Bononizing pretreatment prepared by the present embodiment, boronising thickness in shot-peening face is 10 μm, and surface hardness is HV1126; Non-shot-peening face boronising thickness is 5 μm, and surface hardness is HV698.
Embodiment 2
Adopt supersonic fine particles bombarding to carry out monoplanar surface shot peening Q235 steel, its technique is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min, makes the structure refinement in shot-peening face to nano level; Again the Q235 steel after shot peening is cleaned with acetone in Ultrasonic Cleaners, keep Q235 steel curved beam surface clean;
By massfraction, take the ferro-boron of 12%, the Potassium monofluoride of 13%, the cerium oxide of 8%, the activated carbon of 20%, the silicon carbide of 47% mix, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C; 1.5h is dried at boronising sealing is filled in 100 DEG C, being imbedded by Q235 steel is equipped with in the boronising sealed can of above-mentioned powder boronizing agent, 580 DEG C are heated in retort furnace, be warmed up to 900 DEG C of continuation insulation 1h with stove after insulation 1.5h and carry out Bononizing pretreatment, after boronising completes, boronising sealed can is taken out from retort furnace, in atmosphere air cooling.
Q235 steel after Bononizing pretreatment prepared by the present embodiment, boronising thickness in shot-peening face is 35 μm, and surface hardness is HV1658; Non-shot-peening face boronising thickness is 20 μm, and surface hardness is HV1460.
Embodiment 3
Adopt supersonic fine particles bombarding to carry out monoplanar surface shot peening Q235 steel, its technique is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min, makes the structure refinement in shot-peening face to nano level; Again the Q235 steel after shot peening is cleaned with acetone in Ultrasonic Cleaners, keep Q235 steel curved beam surface clean;
By massfraction, take the norbide of 15%, the Sodium Silicofluoride of 15%, the cerium oxide of 12%, the activated carbon of 18%, the silicon carbide of 40% mix, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C; 1.2h is dried at boronising sealing is filled in 100 DEG C, being imbedded by Q235 steel is equipped with in the boronising sealed can of above-mentioned powder boronizing agent, be warmed up to 900 DEG C of continuation insulation 2h with stove after 600 DEG C of insulation 2h in retort furnace after, after boronising completes, boronising sealed can is taken out from retort furnace, in atmosphere air cooling.
Q235 steel after Bononizing pretreatment prepared by the present embodiment, boronising thickness in shot-peening face is 60 μm, and surface hardness is HV1772; Non-shot-peening face boronising thickness is 50 μm, and surface hardness is HV1554.
Embodiment 4
Adopt supersonic fine particles bombarding to carry out monoplanar surface shot peening Q235 steel, its technique is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min, makes the structure refinement in shot-peening face to nano level; Again the Q235 steel after shot peening is cleaned with acetone in Ultrasonic Cleaners, keep Q235 steel curved beam surface clean;
By massfraction, take the borax of 10%, the potassium fluoborate of 10%, the cerium oxide of 10%, the activated carbon of 25%, the silicon carbide of 45% mix, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C; 1.5h is dried at boronising sealing is filled in 100 DEG C, being imbedded by Q235 steel is equipped with in the boronising sealed can of above-mentioned powder boronizing agent, be warmed up to 850 DEG C of continuation insulation 1.5h with stove after 570 DEG C of insulation 2.5h in retort furnace after, after boronising completes, boronising sealed can is taken out from retort furnace, in atmosphere air cooling.
Q235 steel after Bononizing pretreatment prepared by the present embodiment, boronising thickness in shot-peening face is 40 μm, and surface hardness is HV1606; Non-shot-peening face boronising thickness is 25 μm, and surface hardness is HV1158.
Claims (4)
1. a method for the quick boronising of Q235 steel, is characterized in that, comprise the following steps:
The surface treatment of step 1:Q235 steel
1.1, adopt supersonic fine particles bombarding to carry out shot peening to Q235 steel monoplanar surface;
1.2, the Q235 steel after shot peening is cleaned with acetone in Ultrasonic Cleaners;
Step 2: prepare powder boronizing agent
By massfraction, take boron supplying agent 10 ~ 15%, boronising activator 10 ~ 15%, cerium oxide 8 ~ 12%, activated carbon 15 ~ 25%, silicon carbide 40 ~ 55% mixes, obtained powder boronizing agent, and powder boronizing agent is dried 1h at 100 DEG C;
Step 3: carry out Bononizing pretreatment to the Q235 steel curved beam after surface treatment in step 1, concrete technology is as follows:
3.1, boronising sealed can is dried 1 ~ 1.5h at 100 DEG C;
3.2, being imbedded by Q235 steel is equipped with in the boronising sealed can of powder boronizing agent prepared by step 2, be warming up to 800 ~ 900 DEG C of continuation insulation 1 ~ 2h with stove be incubated 1.5 ~ 2.5h at 550 ~ 600 DEG C in retort furnace after and carry out Bononizing pretreatment, after boronising completes, boronising sealed can is taken out from retort furnace, air cooling is to normal temperature in atmosphere, namely completes.
2. the method for the quick boronising of a kind of Q235 steel according to claim 1, it is characterized in that, described supersonic fine particles bombarding to the technique that Q235 steel monoplanar surface carries out shot peening is: operating air pressure 0.5MPa, and diameter is the S110 stainless steel bullet of 0.3mm, and bombardment time is 30min.
3. the method for the quick boronising of a kind of Q235 steel according to claim 1, it is characterized in that, described boron supplying agent is selected from the one in norbide, ferro-boron, boron trioxide, borax.
4. the method for the quick boronising of a kind of Q235 steel according to claim 1, is characterized in that, described boronising activator is selected from the one in Sodium Silicofluoride, ammonium chloride, Potassium monofluoride, potassium fluoborate, sodium carbonate, Ammonium bicarbonate food grade, thiocarbamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765715.6A CN104451536B (en) | 2014-12-12 | 2014-12-12 | Method for rapidly boriding Q235 steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765715.6A CN104451536B (en) | 2014-12-12 | 2014-12-12 | Method for rapidly boriding Q235 steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104451536A true CN104451536A (en) | 2015-03-25 |
| CN104451536B CN104451536B (en) | 2017-02-22 |
Family
ID=52898274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410765715.6A Expired - Fee Related CN104451536B (en) | 2014-12-12 | 2014-12-12 | Method for rapidly boriding Q235 steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104451536B (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911535A (en) * | 2015-06-26 | 2015-09-16 | 中南大学 | Boronizing agent for titanium surface solid boronizing and boronizing process |
| CN105385989A (en) * | 2015-11-10 | 2016-03-09 | 西安建筑科技大学 | Fused salt system for molybdenum or molybdenum alloy binary co-penetration, composite catalyst and application |
| CN106048514A (en) * | 2016-06-27 | 2016-10-26 | 滁州帝邦科技有限公司 | Preparing method for wear-resisting steel used for water-cooling nozzle |
| CN107541697A (en) * | 2016-06-29 | 2018-01-05 | 湖北昆仑齿轮科技有限公司 | A kind of boriding process of 45# steel |
| CN108179374A (en) * | 2018-01-30 | 2018-06-19 | 哈尔滨工程大学 | A kind of method for making Nano surface for accelerating vacuum carburization rate |
| CN109023226A (en) * | 2018-07-24 | 2018-12-18 | 华南理工大学 | A kind of flexibility and prepares single-phase Fe at boron gesture pack boronizing medium2The method of B boride layer |
| CN109055993A (en) * | 2018-10-12 | 2018-12-21 | 曲靖云铝淯鑫铝业有限公司 | A kind of crust-hitting hammer head for aluminum reduction cell and preparation method thereof |
| CN109207914A (en) * | 2018-10-29 | 2019-01-15 | 山东建筑大学 | A kind of workpiece surface reinforcing low-temperature solid B-Cr-Re energizer |
| CN109468579A (en) * | 2018-11-29 | 2019-03-15 | 杨浩鹏 | A kind of mold targeting surface treatment method and boriding medium based on vacuum heat treatment |
| CN110106465A (en) * | 2019-04-22 | 2019-08-09 | 昆明理工大学 | A method of efficiently preparing titanium boron laminar composite |
| CN110306152A (en) * | 2018-12-03 | 2019-10-08 | 盐城金刚星精密锻造有限公司 | A kind of pinion steel surface boronizing process |
| CN111286591A (en) * | 2020-03-21 | 2020-06-16 | 哈尔滨工程大学 | Method for accelerating element diffusion on surface of low-carbon steel |
| CN111979513A (en) * | 2020-07-28 | 2020-11-24 | 西安理工大学 | Preparation method of low-temperature boronized ductile cast iron wear-resistant surface |
| CN114703446A (en) * | 2022-04-01 | 2022-07-05 | 江苏科技大学 | Paste boronizing agent and preparation method and application thereof |
| CN114941109A (en) * | 2022-06-30 | 2022-08-26 | 宁波康颖健康科技有限公司 | Corrosion-resistant steel plate for metal plate |
| CN115135825A (en) * | 2020-02-24 | 2022-09-30 | 拉克希米环游(哥印拜陀)私人有限公司 | Steel boronizing composition for steel collar and steel wire ring and process thereof |
| CN115537716A (en) * | 2022-10-10 | 2022-12-30 | 佛山桃园先进制造研究院 | Processing method for surface hardening of GH4169 steel die and product thereof |
| CN117966083A (en) * | 2024-04-02 | 2024-05-03 | 西安理工大学 | Surface boronizing method for mirror symmetry double-gradient laminated composite material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034399A (en) * | 1989-01-13 | 1989-08-02 | 山东农业机械化学院 | Do the paste boron-doping agent of boron source with boric acid |
| JPH08176792A (en) * | 1994-12-20 | 1996-07-09 | Tawara Yoshiaki | Method for thickly penetrating aluminum and boron into iron and steel materials |
| CN101555581A (en) * | 2009-05-22 | 2009-10-14 | 松原大多油田配套产业有限公司 | Rare earth powder boronizing agent |
| CN102936712A (en) * | 2012-11-22 | 2013-02-20 | 西安工程大学 | Preparation method of air-texturing nozzle |
-
2014
- 2014-12-12 CN CN201410765715.6A patent/CN104451536B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034399A (en) * | 1989-01-13 | 1989-08-02 | 山东农业机械化学院 | Do the paste boron-doping agent of boron source with boric acid |
| JPH08176792A (en) * | 1994-12-20 | 1996-07-09 | Tawara Yoshiaki | Method for thickly penetrating aluminum and boron into iron and steel materials |
| CN101555581A (en) * | 2009-05-22 | 2009-10-14 | 松原大多油田配套产业有限公司 | Rare earth powder boronizing agent |
| CN102936712A (en) * | 2012-11-22 | 2013-02-20 | 西安工程大学 | Preparation method of air-texturing nozzle |
Non-Patent Citations (1)
| Title |
|---|
| LILING GE ET AL.: ""Inflence of the surface nanocrystallization on the gas nitriding of Ti-6Al-4V alloy"", 《APPLIED SURFACE SCIENCE》 * |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104911535A (en) * | 2015-06-26 | 2015-09-16 | 中南大学 | Boronizing agent for titanium surface solid boronizing and boronizing process |
| CN105385989A (en) * | 2015-11-10 | 2016-03-09 | 西安建筑科技大学 | Fused salt system for molybdenum or molybdenum alloy binary co-penetration, composite catalyst and application |
| CN105385989B (en) * | 2015-11-10 | 2018-04-27 | 西安建筑科技大学 | A kind of salt melting system, compound cocatalyst and the application of the binary permeation of molybdenum or molybdenum alloy |
| CN106048514A (en) * | 2016-06-27 | 2016-10-26 | 滁州帝邦科技有限公司 | Preparing method for wear-resisting steel used for water-cooling nozzle |
| CN107541697A (en) * | 2016-06-29 | 2018-01-05 | 湖北昆仑齿轮科技有限公司 | A kind of boriding process of 45# steel |
| CN108179374A (en) * | 2018-01-30 | 2018-06-19 | 哈尔滨工程大学 | A kind of method for making Nano surface for accelerating vacuum carburization rate |
| CN109023226A (en) * | 2018-07-24 | 2018-12-18 | 华南理工大学 | A kind of flexibility and prepares single-phase Fe at boron gesture pack boronizing medium2The method of B boride layer |
| CN109055993A (en) * | 2018-10-12 | 2018-12-21 | 曲靖云铝淯鑫铝业有限公司 | A kind of crust-hitting hammer head for aluminum reduction cell and preparation method thereof |
| CN109207914A (en) * | 2018-10-29 | 2019-01-15 | 山东建筑大学 | A kind of workpiece surface reinforcing low-temperature solid B-Cr-Re energizer |
| CN109468579A (en) * | 2018-11-29 | 2019-03-15 | 杨浩鹏 | A kind of mold targeting surface treatment method and boriding medium based on vacuum heat treatment |
| CN109468579B (en) * | 2018-11-29 | 2021-05-11 | 杨浩鹏 | Mold targeting surface treatment method based on vacuum heat treatment and boronizing agent |
| CN110306152A (en) * | 2018-12-03 | 2019-10-08 | 盐城金刚星精密锻造有限公司 | A kind of pinion steel surface boronizing process |
| CN110106465A (en) * | 2019-04-22 | 2019-08-09 | 昆明理工大学 | A method of efficiently preparing titanium boron laminar composite |
| CN115135825A (en) * | 2020-02-24 | 2022-09-30 | 拉克希米环游(哥印拜陀)私人有限公司 | Steel boronizing composition for steel collar and steel wire ring and process thereof |
| CN115135825B (en) * | 2020-02-24 | 2024-04-16 | 拉克希米环游(哥印拜陀)私人有限公司 | Steel boride composition for ring bead ring and process thereof |
| CN111286591B (en) * | 2020-03-21 | 2021-12-24 | 哈尔滨工程大学 | Method for accelerating element diffusion on surface of low-carbon steel |
| CN111286591A (en) * | 2020-03-21 | 2020-06-16 | 哈尔滨工程大学 | Method for accelerating element diffusion on surface of low-carbon steel |
| CN111979513A (en) * | 2020-07-28 | 2020-11-24 | 西安理工大学 | Preparation method of low-temperature boronized ductile cast iron wear-resistant surface |
| CN114703446A (en) * | 2022-04-01 | 2022-07-05 | 江苏科技大学 | Paste boronizing agent and preparation method and application thereof |
| CN114941109A (en) * | 2022-06-30 | 2022-08-26 | 宁波康颖健康科技有限公司 | Corrosion-resistant steel plate for metal plate |
| CN115537716A (en) * | 2022-10-10 | 2022-12-30 | 佛山桃园先进制造研究院 | Processing method for surface hardening of GH4169 steel die and product thereof |
| CN115537716B (en) * | 2022-10-10 | 2024-05-28 | 佛山桃园先进制造研究院 | Processing method for surface hardening of GH4169 steel die and product thereof |
| CN117966083A (en) * | 2024-04-02 | 2024-05-03 | 西安理工大学 | Surface boronizing method for mirror symmetry double-gradient laminated composite material |
| CN117966083B (en) * | 2024-04-02 | 2024-06-04 | 西安理工大学 | Surface boronizing method for mirror symmetry double-gradient laminated composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104451536B (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104451536B (en) | Method for rapidly boriding Q235 steel | |
| CN100582287C (en) | Boron-chromium-rare-earth co-seeping agent and its low-temperature co-seeping process below eutectoid line | |
| CN106835054B (en) | The method of diamond single crystal surface metalation processing | |
| CN105603358B (en) | A kind of titanium alloy ultrasound knife surface reinforcing method | |
| CN110359006A (en) | A method of improving the resistance to liquid metal corrosion of heat resisting steel | |
| CN102560508A (en) | Method for modifying surface of metal material by using surface mechanical attrition treatment | |
| CN101608296B (en) | Titanium alloy surface boronizing method | |
| CN106148949A (en) | A kind of laser-induction composite cladding Graphene strengthens Ni3the method of Ti composite | |
| CN103938152A (en) | Low-temperature solid multi-element boronizing process for work-piece surface | |
| CN109023226B (en) | Flexible boronizing solid boronizing agent and preparation of single-phase Fe2Method for B boronizing layers | |
| CN103882372B (en) | A kind of low medium carbon steel surface reinforcing method | |
| CN106756775B (en) | A kind of alloy surface forms the preparation method of spinelle coating | |
| CN105331926A (en) | N-C-Cr-V-RE multi-element co-diffusion material for 45 steel surface strengthening | |
| CN103464764A (en) | Metal matrix wear-resistant corrosion-resistant surface coating composite and preparation method thereof | |
| CN103952664A (en) | Surface pretreatment process for diamond-like carbon coated workpiece | |
| CN108103472A (en) | A kind of composite coating layer cutter and preparation method thereof | |
| CN102560015B (en) | Method for treating mold surface by using laser hardening | |
| CN107641785B (en) | Preparation method of wear-resistant coating on surface of nodular cast iron | |
| CN104775089A (en) | Rapid salt-bath nitridation method by applying magnetic field | |
| CN102925851B (en) | Two-section gas nitridation method for surfaces of aluminum and aluminum alloy | |
| CN103952709B (en) | A kind of method that magnesium alloy severe deformation and rare-earth penetration surface are modified | |
| CN102943230B (en) | The nitriding method on Al and Alalloy surface | |
| CN104591783A (en) | Method for plating boron carbide on diamond surface | |
| CN105385988B (en) | A kind of preparation method of molybdenum or molybdenum alloy surface rare earth metal boron binary co-penetration layer | |
| CN106834804A (en) | To the compound cryosar nitridation process of the Ti alloy disc type parts of effective strengthening effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20201212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |