CN109136813A - A kind of mine hydraulic support column surface treatment method - Google Patents
A kind of mine hydraulic support column surface treatment method Download PDFInfo
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- CN109136813A CN109136813A CN201810165764.4A CN201810165764A CN109136813A CN 109136813 A CN109136813 A CN 109136813A CN 201810165764 A CN201810165764 A CN 201810165764A CN 109136813 A CN109136813 A CN 109136813A
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/129—Flame spraying
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating By Spraying Or Casting (AREA)
- Chemically Coating (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention relates to a kind of mine hydraulic support column surface treatment methods, include the following steps: step 1: oil removing, derusting, sandblasting roughening；Step 2: preparing metal-cermic coating powder；Step 3: supersonic velocity flame plating equipment and metal-cermic coating powder are used, in mine hydraulic support column surface spray coating metal ceramic coating；Step 4: sealing pores being carried out to the hydraulic vertical prop surface covering after spraying using organic resin；Step 5: sanding and polishing processing is carried out to the hydraulic vertical prop surface after sealing pores.This method solves the problems, such as that the process pollution in the presence of the prior art is big, converted products wear-corrosion resistance is insufficient, has positive technical meaning by innovative coating compounding technique means.
Description
Technical field
The present invention relates to a kind of mine hydraulic support column surface treatment methods, belong to field of metal surface treatment.
Background technique
At present in mining production especially coal production, hydraulic support column is widely used and is supported；Hydraulic support
Leg surface can not only be worn, it is also necessary to be subjected to the hard object such as acid, caustic corrosion and gangue and be hit, it is therefore necessary to carry out surface
Processing.The technique for generalling use plating hard chrome at present, but hard chrome coating is electroplated there are geneogenous penetrability micro-crack, underground is rotten
Corrosion gas or emulsifying liquid can be easy to cause column to fail by through-wall crack etched the matrix；In addition at wear-resisting aspect,
Due to electroplated layer lower hardness, generally only HRC55-57, when coating is more difficult long under impact wear, skimming wear work condition environment
Between effectively.The above two aspects reason leads to plating hard chrome column service life only 1 year or so, exists with the desired 2-3 of client
Biggish gap.
The technique that hard chrome is electroplated simultaneously also brings another disadvantage: pollution is larger.Plating hard chrome during generate acid mist,
All contain a large amount of Cr in waste liquid and solid slag6+, this Cr6+Ion is a kind of strong carcinogen, can be made to human body and environment
At serious pollution, also, these contain Cr6+Ion offal treatment is got up also highly difficult.About Cr6+Pollution, both at home and abroad
There are stringent regulation, the environmental pollution identifing source that the country is put into effect, by Cr6+It is classified as the heavy metal element of strict control discharge；It is external
Cr is forbidden to use as European Union issued on 2 13rd, 20036+Two instructions (WEEE, ROHS), and announce in July, 2007
It is all forbidden to use within 1st；California, USA is forbidden to use chrome-plated process in January, 2003；The Japanese UE committee indicates 2003
Start two instructions using European Union year, is abolished comprehensively after on July 1st, 2007 and use Cr6+.These external conditions will also seek survival
Producing enterprise must upgrade the surface treatment process method of environmental protection a kind of.
In the art, the techniques such as laser melting coating, plasma cladding, supersonic flame spraying have been had already appeared at present to replace
Generation plating, wherein supersonic flame spraying (High Velocity Oxygen Fuel spray:HVOF) has very high flame stream
Speed and relatively low flame stream temperature are suitable for preparing dense structure and alloy carbide coating with high hardness, can obtain good
Good protection effect.It is " a kind of application No. is subject name in 201110345487.3 Chinese invention patent application, is disclosed
Supersonic flame spraying prepares wear-resisting TiB2The technical solution of-Co coating " " obtains TiB by mechanical alloying2- Co is compound
Powder prepares TiB using supersonic flame spraying technology2- Co coating." in practice, it has been found that the program still have it is following
It is insufficient:
1. being limited by TiB2Self-characteristic is formed by TiB2Ceramic coating 522.6 ~ 753.1HV of measured hardness, though it is higher than electricity
Coating, but still it is relatively low, wear-resisting property is still insufficient；
2. it include Co and Fe in coating composition, and Co and Fe corrosion resistance is poor, causes coating is resistance to be easy too fast failure；
3. cobalt-based material price is high, lead to high production cost.
Therefore, it designs at the mine hydraulic support column surface that a kind of product is more wear resistant corrosion-resistant while cost is easier to control
Reason method is those skilled in the art's urgent problem to be solved.
Summary of the invention
To solve processing rear surface abrasion-proof corrosion-proof existing for mine hydraulic support column surface treatment method in the prior art
The problem that corrosion energy is insufficient, the present invention provide a kind of mine hydraulic support column surface treatment method, are sprayed by supersonic flame
Technique is applied in leg surface spray coating metal ceramic coating, not only treatment process pollution is small, and handles rear surface wear resistant corrosion resistant
Performance is stronger, and used material cost is relatively low.
The present invention adopts the following technical solutions:
A kind of mine hydraulic support column surface treatment method, which comprises the steps of:
Step 1: surface degreasing, derusting, sandblasting roughening are carried out to mine hydraulic support column；
Step 2: preparing metal-cermic coating powder, the powder includes the ceramic phase powder and 15-50% of mass ratio 50-85%
Metal phase powder, wherein the ceramic phase powder includes WC and Cr3C2, the metal phase powder includes Ni and/or Cr:
Step 3: using supersonic velocity flame plating equipment and metal-cermic coating powder, sprayed on mine hydraulic support column surface
Metal-cermic coating；
Step 4: sealing pores being carried out to the hydraulic vertical prop surface covering after spraying using organic resin；
Step 5: sanding and polishing processing is carried out to the hydraulic vertical prop surface after sealing pores.
Preferably, in ceramic phase powder described in step 2, WC and Cr3C2Mass ratio is 5:11.
Or it is preferred, in metal phase powder described in step 2, the mass ratio of Ni and Cr are 3:1.
Or it is preferred, it further include the Mo of quality accounting≤25% in metal phase powder described in step 2.
Or it is preferred, metal-cermic coating powder described in step 2 includes: 25%WC, 25%Cr3C2, 45%Ni, 5%Cr or
25%WC、55%Cr3C2, 15%Ni, 5%Mo or 30%WC, 55% Cr3C2、18%Cr、2%Mo。
Or it is preferred, in step 3, supersonic flame spraying technological parameter are as follows: kerosene: 6.2GPH；Oxygen: 1920SCFH；
Powder feeding gas is nitrogen, powder feeding rate: 50g/min；Spray distance 380mm uses 6inch gun barrel；Chamber pressure is not less than
103PSI。
The present invention has the advantage that
(1) Co and Fe are eliminated in coating composition, reduces the factor for influencing coating corrosion resistance energy；
(2) in the ceramic phase constituent of coated powder, WC and Cr3C2Use and the adjustment of corresponding ratio, can be in hardness, resistance to
Equilibrium state required for corrosivity, craftsmanship etc. obtain；
(3) the metal phase constituent of coated powder, not only all has the good wettability to ceramic phase constituent, can play to coating
Firm cementation, and pass through the adjustment of ratio and ingredient, it can according to need the balance for reaching cost and performance, more have
Conducive to industry application；
(4) coating does not use Co sill, while reducing ingredient type, not only reduces costs, but also alleviates buying, storage, life
Bring added burden during production reduces the potential risk for influencing manufacturing schedule and cost；
(5) technological parameter is further limited, it is ensured that the method treatment effect in the present invention reaches best.
Specific embodiment
Below with reference to embodiment, the present invention is further described.
Embodiment 1:
A kind of mine hydraulic support column surface treatment method, includes the following steps:
Step 1: surface degreasing, derusting, sandblasting roughening are carried out to mine hydraulic support column；
Step 2: preparing metal-cermic coating powder, the powder includes ceramic phase powder and metal phase powder, wherein the pottery
Porcelain phase powder includes WC and Cr3C2, the metal phase powder includes Ni and Cr, specific proportion are as follows: 25%WC, 25%Cr3C2、45%
Ni, 5%Cr mass ratio；
Step 3: using supersonic velocity flame plating equipment and metal-cermic coating powder, sprayed on mine hydraulic support column surface
Metal-cermic coating；
Step 4: sealing pores being carried out to the hydraulic vertical prop surface covering after spraying using organic resin；
Step 5: sanding and polishing processing is carried out to the hydraulic vertical prop surface after sealing pores.
Wherein, mine hydraulic support column material handled in embodiment is 27SiMn steel.
Step 1 specific implementation process are as follows: (1) scouring oil removing is carried out to outer surface of workpiece by industrial alcohol wiping, then used
100-200 mesh sand paper carries out surface derusting, it is ensured that final workpiece surface does not have greasy dirt, without apparent rust staining.(2) 46 are used#
White fused alumina sand and dedicated abrasive blast equipment carry out sandblasting roughening, roughness raising processing, and sandblasting rear surface roughness is not less than Ra5 μ
m；
Raw material powder is mixed in step 2, ball milling, mist projection granulating, the processing such as sintering, metal used in forming step 3
Ceramic coating powder.Specific mixing apparatus and method use existing common mixing apparatus and method, are not belonging to present invention design and want
Point.In mixed powder, ceramic phase powder is 50%, and metal phase powder is 50%.
WC and Cr3C2Proportion, be guarantee coating hardness, meet coating working condition requirement and cost optimization pursuit it
Between the balance that obtains.
Metal phase constituent Ni, Cr of coated powder, not only all have to ceramic phase constituent WC and Cr3C2Good wettability,
Firm cementation can be played to coating, and the adjustment of middle ratio through this embodiment, can achieve performance and production control
Balance in system is more advantageous to industry application.Cr is bigger for the hardness contribution of coating and more resistant to corrosion, but craftsmanship compared with
Difference, therefore account in the present embodiment smaller.Ni powder and Cr powder price used in production are not much different at present, are equivalent to
The 1/6 ~ 1/5 of Co powder；Therefore the control effect in cost is apparent.
The specific implementation process of step 3 are as follows: the hydraulic support column through blasting treatment qualification is promoted by small rail car to be sprayed
It applies in room, is sprayed using the powder in Praxair-JP8000 type supersonic spray coating equipment and step 2.Technological parameter are as follows:
Kerosene: 6.2GPH；Oxygen: 1920SCFH；Powder feeding gas is nitrogen, powder feeding rate: 50g/min；Spray distance 380mm is used
6inch gun barrel；Chamber pressure guarantees to be not less than 103PSI.
During supersonic flame spraying, with its flame speed height, the low feature of temperature is particularly conducive to spray metal
Ceramic coating；After high particle rapidity makes ingredient and the collision of part surface to be processed steel matrix in coated powder, hole can be formed
Rate is small, it is fine and close, in conjunction with strong coating, be in the layer structure of interlaced stacking between coating；And low flame temperature can be effective
Inhibit or reduce decomposition of the hard phase in spraying process, the coating of preparation is made to maintain the original excellent abrasive resistance of cermet
Institutional framework.
Organic resin used in step 4 is WFT FL-#1532 hole sealing agent.
Since hardness is to influence the most important index of wearability, we are usually by way of measuring surface hardness
Carry out preliminary assessment wearability.
It is disposed and Determination of Hardness is carried out to the leg surface after sanding and polishing using hardometer, hardness reaches
852HV0.3, hence it is evident that higher than the product of the technical solution in documents.It is verified through wearability frictional experiment, wearability is common
3-5 times of electroplated layer.
Embodiment 2:
A kind of mine hydraulic support column surface treatment method, the difference from embodiment 1 is that:
Metal-cermic coating powder used in step 2, material composition mass percent is: 25%WC, 55%Cr3C2、15%
Ni、5%Mo。
This formula does not use Cr, although slightly reducing corrosion resistance and hardness, craftsmanship is stronger, in production
More preferable control；Friction can be effectively reduced using the greasy property of Mo by the addition of Mo simultaneously, from another design direction
Promote the wearability of coating.
It is disposed and Determination of Hardness is carried out to the leg surface after sanding and polishing using hardometer, hardness is
1008HV0.3, verified through wearability frictional experiment, wearability is 4-6 times of Common platings layer.
Embodiment 3:
A kind of mine hydraulic support column surface treatment method, the difference from embodiment 1 is that:
Metal-cermic coating powder used in step 2, material composition mass percent is: 30%WC, 55% Cr3C2、18%
Cr、2%Mo。
Ni is not used in this formula, while production control difficulty increases, brings higher hardness and stronger yet
Corrosion resistance；Simultaneously as the wetability of Cr and phase constituent ceramic in the present invention are stronger, so that each ingredient combines more in coating
Closely, the consistency of coating, firmness are higher.
It is disposed and Determination of Hardness is carried out to the leg surface after sanding and polishing using hardometer, hardness is
1038HV0.3；Simultaneously as promotion of the lubricating action of Mo to wear-resisting property, is verified through wearability frictional experiment, wearability is general
6-8 times of energization coating.
The sample of above-mentioned three kinds of embodiments, the corrosion for being simulated use environment is verified, more than 2 years still without obvious burn into
Phenomena such as coating shedding, it was demonstrated that can meet customer requirement and purpose of design.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
A variety of modifications of embodiment will be readily apparent to those skilled in the art, it is as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention, not be described in detail
The part presented with partial enlargement is the prior art, herein without repeating.Therefore, the present invention is not intended to be limited to herein
Shown in these embodiments, and be to fit to the widest scope consistent with principles disclosed herein and feature.
Claims (6)
1. a kind of mine hydraulic support column surface treatment method, which comprises the steps of:
Step 1: surface degreasing, derusting, sandblasting roughening are carried out to mine hydraulic support column；
Step 2: preparing metal-cermic coating powder, the powder includes the ceramic phase powder and 15-50% of mass ratio 50-85%
Metal phase powder, wherein the ceramic phase powder includes WC and Cr3C2, the metal phase powder includes Ni and/or Cr:
Step 3: using supersonic velocity flame plating equipment and metal-cermic coating powder, sprayed on mine hydraulic support column surface
Metal-cermic coating；
Step 4: sealing pores being carried out to the hydraulic vertical prop surface covering after spraying using organic resin；
Step 5: sanding and polishing processing is carried out to the hydraulic vertical prop surface after sealing pores.
2. surface treatment method according to claim 1, which is characterized in that in ceramic phase powder described in step 2, WC and
Cr3C2Mass ratio is 5:11.
3. surface treatment method according to claim 1, which is characterized in that in metal phase powder described in step 2, Ni and
The mass ratio of Cr is 3:1.
4. surface treatment method according to claim 1, which is characterized in that in metal phase powder described in step 2, also wrap
Include the Mo of quality accounting≤25%.
5. surface treatment method according to claim 1, which is characterized in that metal-cermic coating powder described in step 2
It include: 25%WC, 25%Cr3C2, 45%Ni, 5%Cr or 25%WC, 55%Cr3C2, 15%Ni, 5%Mo or 30%WC, 55% Cr3C2、18%
Cr、2%Mo。
6. surface treatment method according to claim 1, which is characterized in that in step 3, supersonic flame spraying technique ginseng
Number are as follows: kerosene: 6.2GPH；Oxygen: 1920SCFH；Powder feeding gas is nitrogen, powder feeding rate: 50g/min；Spray distance 380mm, makes
With 6inch gun barrel；Chamber pressure is not less than 103PSI.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810165764.4A CN109136813A (en) | 2018-02-28 | 2018-02-28 | A kind of mine hydraulic support column surface treatment method |
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| CN201810165764.4A CN109136813A (en) | 2018-02-28 | 2018-02-28 | A kind of mine hydraulic support column surface treatment method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016632A (en) * | 2019-03-25 | 2019-07-16 | 安徽开发矿业有限公司 | A kind of diaphragm pump flow passage part Wear-resistant Treatment technique |
| CN110144538A (en) * | 2019-05-27 | 2019-08-20 | 武汉材料保护研究所有限公司 | A kind of hydraulic support column surface recombination thermal spraying restorative procedure |
| CN110331358A (en) * | 2019-04-30 | 2019-10-15 | 山东能源重装集团恒图科技有限公司 | A kind of thermal spraying manufacture of oil cylinder of hydraulic support telescopic rod and reproducing method |
| CN111378919A (en) * | 2020-04-24 | 2020-07-07 | 中煤北京煤矿机械有限责任公司 | HVOF method for mining hydraulic support |
| CN111500964A (en) * | 2020-04-30 | 2020-08-07 | 三一石油智能装备有限公司 | Preparation method of nodular cast iron plunger and plunger |
| CN114959540A (en) * | 2022-07-04 | 2022-08-30 | 江苏贝尔机械有限公司 | Wear-resistant and adhesion-resistant spraying method for inner barrel of battery material mixer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016632A (en) * | 2019-03-25 | 2019-07-16 | 安徽开发矿业有限公司 | A kind of diaphragm pump flow passage part Wear-resistant Treatment technique |
| CN110331358A (en) * | 2019-04-30 | 2019-10-15 | 山东能源重装集团恒图科技有限公司 | A kind of thermal spraying manufacture of oil cylinder of hydraulic support telescopic rod and reproducing method |
| CN110144538A (en) * | 2019-05-27 | 2019-08-20 | 武汉材料保护研究所有限公司 | A kind of hydraulic support column surface recombination thermal spraying restorative procedure |
| CN111378919A (en) * | 2020-04-24 | 2020-07-07 | 中煤北京煤矿机械有限责任公司 | HVOF method for mining hydraulic support |
| CN111500964A (en) * | 2020-04-30 | 2020-08-07 | 三一石油智能装备有限公司 | Preparation method of nodular cast iron plunger and plunger |
| CN114959540A (en) * | 2022-07-04 | 2022-08-30 | 江苏贝尔机械有限公司 | Wear-resistant and adhesion-resistant spraying method for inner barrel of battery material mixer |
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Application publication date: 20190104 |
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