CN106191653A - A kind of abrasion-proof corrosion-proof bearing block - Google Patents

A kind of abrasion-proof corrosion-proof bearing block Download PDF

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Publication number
CN106191653A
CN106191653A CN201610654149.0A CN201610654149A CN106191653A CN 106191653 A CN106191653 A CN 106191653A CN 201610654149 A CN201610654149 A CN 201610654149A CN 106191653 A CN106191653 A CN 106191653A
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China
Prior art keywords
bearing block
proof
powder
corrosion
corrosion resistant
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Pending
Application number
CN201610654149.0A
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Chinese (zh)
Inventor
杨亮
刘海峰
刘海波
魏静
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Anhui Yuwang Casting Industry Co
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Anhui Yuwang Casting Industry Co
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Priority to CN201610654149.0A priority Critical patent/CN106191653A/en
Publication of CN106191653A publication Critical patent/CN106191653A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
    • 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
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/60—Ferrous alloys, e.g. steel alloys
    • F16C2204/66—High carbon steel, i.e. carbon content above 0.8 wt%, e.g. through-hardenable steel

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubricants (AREA)
  • Sliding-Contact Bearings (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A kind of abrasion-proof corrosion-proof bearing block, this bearing block is by bearing block body, evaporation corrosion resistant layer on described bearing block body outer wall and the wearing layer composition being coated in described corrosion resistant layer.This bearing block has higher mechanical strength and heat transfer property, the produced friction in height rotary course of the bearing in bearing block can be born, there is preferable anti-wear performance, fricative heat can quickly distribute from bearing block, avoid the accumulation of heat, overcome the corrosion that bearing block may be produced by lubricating oil simultaneously, extend the service life of bearing block, long-time use continuously can keep stable performance constant, is particularly suitable for the big machinery devices such as lathe class.

Description

A kind of abrasion-proof corrosion-proof bearing block
Technical field
The present invention relates to mechanical fitting technical field, be specifically related to a kind of abrasion-proof corrosion-proof bearing block.
Background technology
Bearing block is a kind of hold-down support for spring bearing, and the kind of bearing block is a lot, such as split type bearing block, Gu Fixed pattern bearing block, multiplex formula bearing block, flange shaft bearing, ball bearing seat etc., owing to bearing rotates in bearing block high speed, make Bearing block intensity, anti-wear performance must be proposed higher requirement, preferably rotate for bearing simultaneously typically bearing with Bearing block junction is each coated with lubricating oil, the various chemical compositions contained in lubricating oil, easily bearing block outer wall is caused corruption Erosion, in existing bearing block, generally also exist bearing block due to work friction effect, make to produce between bearing and bearing block High temperature, often occurs that bearing block ruptures, leakage of oil, the phenomenon of damage occur, and not only impact is normal produces, and also can give maintenance Bring inconvenience.
Summary of the invention
The present invention solves the problems referred to above, it is provided that one has high intensity, the abrasion-proof corrosion-proof bearing block of stable mechanical performance.
The technical problem to be solved uses following technical scheme to realize:
A kind of abrasion-proof corrosion-proof bearing block, this bearing block is by bearing block body, evaporation corrosion resistant on bearing block body outer wall Layer and the wearing layer composition being coated in corrosion resistant layer.
Described bearing block body is made up of the raw material of following weight portion:
Carbon 1.8%-2.2%, silicon 1.3%-1.6%, manganese 0.04%-0.08%, sulfur 0.03%-0.04%, magnesium 0.02%- 0.06%, zinc 0.03%-0.08%, chromium 0.05%-0.09%, copper 0.04%-0.07%, cerium 0.03%-0.04%, rhenium 0.01%-0.02%, carborundum 0.03%-0.05%, oilstone 0.02%-0.04%, corundum 0.03%-0.07%, Xiuyan Jade 0.05%-0.06%, granite 0.03%-0.04%, obsidian 0.02%-0.05%, nickel vananum powder 0.04%- 0.07%, surplus is ferrum；
Described corrosion resistant layer is made up of the raw material of following weight portion:
Ceramics 0.05%-0.06%, tungsten carbide powder 0.03%-0.08%, cobalt powder 0.04%-0.08%, potassium steel powder End 0.02%-0.04%, titanium dioxide 0.01%-0.02%, zirconium oxide 0.03%-0.04%, silicon 0.04%-0.07%, germanium 0.02%-0.06%, ferrite 0.03%-0.04%, alloyed powder 0.05%-0.06%, quartz sand 0.02%-0.05%, carbon SiClx powder 0.04%-0.07%, sodium silicate 0.04%-0.05%, gallium nitride 0.04%-0.08%, glass fibre 0.01%- 0.04%, aluminium nitride 0.02%-0.03%, surplus is zinc；
Described wearing layer is made up of the raw material of following weight portion:
Aluminium nitride 18-30 part, Graphene 20-25 part, tungsten carbide powder 9-12 part, silicon dioxide 7-10 part, potassium steel powder 12-15 part, carborundum 5-8 part, titanium dioxide 3-6 part, zirconium oxide 7-10 part.
In the nickel vananum powder raw material of described composition bearing block body, nickel, vanadium, aluminum mass ratio are respectively 1:3:1.5.
Described corrosion resistant layer and wearing layer thickness range are respectively 0.8～1.2mm, 1.0～1.7mm.
Described corrosion resistant layer and wearing layer thickness are than for 1:(1.2～1.5).
Described corrosion resistant layer and wearing layer thickness are respectively 1mm, 1.3mm.
The invention have the benefit that this bearing block has higher mechanical strength and heat transfer property, it is possible to bear bearing Bearing in Zuo is produced friction in height rotary course, has preferable anti-wear performance, and fricative heat can Quickly distribute from bearing block, it is to avoid the accumulation of heat, overcome the corrosion that bearing block may be produced by lubricating oil simultaneously, Extending the service life of bearing block, long-time use continuously can keep stable performance constant, is particularly suitable for lathe class etc. Big machinery device.
Detailed description of the invention:
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot Close embodiment, the present invention is expanded on further.
Embodiment 1
A kind of abrasion-proof corrosion-proof bearing block, this bearing block is by bearing block body, evaporation corrosion resistant on bearing block body outer wall Layer and the wearing layer composition being coated in corrosion resistant layer.
Described bearing block body is made up of the raw material of following weight portion:
Carbon 1.8%, silicon 1.3%, manganese 0.04%, sulfur 0.03%, magnesium 0.02%, zinc 0.03%, chromium 0.05%, copper 0.04%, cerium 0.03%, rhenium 0.01%, carborundum 0.03%, oilstone 0.02%, corundum 0.03%, Xiuyan Jade 0.05%, Hua Gang Rock 0.03%, obsidian 0.02%, nickel vananum powder 0.04%, surplus is ferrum；
Described corrosion resistant layer is made up of the raw material of following weight portion:
Ceramics 0.05%, tungsten carbide powder 0.03%, cobalt powder 0.04%, potassium steel powder 0.02%, titanium dioxide 0.01%, Zirconium oxide 0.03%, silicon 0.04%, germanium 0.02%, ferrite 0.03%, alloyed powder 0.05%, quartz sand 0.02%, carborundum Powder 0.04%, sodium silicate 0.04%, gallium nitride 0.04%, glass fibre 0.01%, aluminium nitride 0.02%, surplus is zinc；
Described wearing layer is made up of the raw material of following weight portion:
Aluminium nitride 18 parts, Graphene 20 parts, tungsten carbide powder 9 parts, silicon dioxide 7 parts, 12 parts of potassium steel powder, carborundum 5 Part, titanium dioxide 3 parts, zirconium oxide 7 parts.
Embodiment 2
A kind of abrasion-proof corrosion-proof bearing block, this bearing block is by bearing block body, evaporation corrosion resistant on bearing block body outer wall Layer and the wearing layer composition being coated in corrosion resistant layer.
Described bearing block body is made up of the raw material of following weight portion:
Carbon 2.0%, silicon 1.5%, manganese 0.06%, sulfur 0.03%, magnesium 0.04%, zinc 0.06%, chromium 0.07%, copper 0.06%, cerium 0.03%, rhenium 0.01%, carborundum 0.04%, oilstone 0.03%, corundum 0.05%, Xiuyan Jade 0.05%, Hua Gang Rock 0.03%, obsidian 0.04%, nickel vananum powder 0.05%, surplus is ferrum；
Described corrosion resistant layer is made up of the raw material of following weight portion:
Ceramics 0.05%, tungsten carbide powder 0.05%, cobalt powder 0.06%, potassium steel powder 0.03%, titanium dioxide 0.01%, Zirconium oxide 0.03%, silicon 0.06%, germanium 0.05%, ferrite 0.03%, alloyed powder 0.05%, quartz sand 0.04%, carborundum Powder 0.05%, sodium silicate 0.04%, gallium nitride 0.06%, glass fibre 0.03%, aluminium nitride 0.02%, surplus is zinc；
Described wearing layer is made up of the raw material of following weight portion:
Aluminium nitride 25 parts, Graphene 23 parts, tungsten carbide powder 11 parts, silicon dioxide 9 parts, 13 parts of potassium steel powder, carborundum 7 Part, titanium dioxide 5 parts, zirconium oxide 9 parts.
Embodiment 3
A kind of abrasion-proof corrosion-proof bearing block, this bearing block is by bearing block body, evaporation corrosion resistant on bearing block body outer wall Layer and the wearing layer composition being coated in corrosion resistant layer.
Described bearing block body is made up of the raw material of following weight portion:
Carbon 2.2%, silicon 1.6%, manganese 0.08%, sulfur 0.04%, magnesium 0.06%, zinc 0.08%, chromium 0.09%, copper 0.07%, cerium 0.04%, rhenium 0.02%, carborundum 0.05%, oilstone 0.04%, corundum 0.07%, Xiuyan Jade 0.06%, Hua Gang Rock 0.04%, obsidian 0.05%, nickel vananum powder 0.07%, surplus is ferrum；
Described corrosion resistant layer is made up of the raw material of following weight portion:
Ceramics 0.06%, tungsten carbide powder 0.08%, cobalt powder 0.08%, potassium steel powder 0.04%, titanium dioxide 0.02%, Zirconium oxide 0.04%, silicon 0.07%, germanium 0.06%, ferrite 0.04%, alloyed powder 0.06%, quartz sand 0.05%, carborundum Powder 0.07%, sodium silicate 0.05%, gallium nitride 0.08%, glass fibre 0.04%, aluminium nitride 0.03%, surplus is zinc；
Described wearing layer is made up of the raw material of following weight portion:
Aluminium nitride 30 parts, Graphene 25 parts, tungsten carbide powder 12 parts, silica 10 part, 15 parts of potassium steel powder, carborundum 8 parts, titanium dioxide 6 parts, zirconium oxide 10 parts.
In the nickel vananum powder raw material of described composition bearing block body, nickel, vanadium, aluminum mass ratio are respectively 1:3:1.5.
Described corrosion resistant layer and wearing layer thickness range are respectively 0.8～1.2mm, 1.0～1.7mm.
Described corrosion resistant layer and wearing layer thickness are than for 1:(1.2～1.5).
Described corrosion resistant layer and wearing layer thickness are respectively 1mm, 1.3mm.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry The personnel only present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also has various Changes and improvements, these changes and improvements both fall within scope of the claimed invention.Claimed scope is by institute Attached claims and equivalent thereof define.

Claims (5)

1. an abrasion-proof corrosion-proof bearing block, it is characterised in that this bearing block is by bearing block body, and evaporation is at described bearing block body Corrosion resistant layer on outer wall and the wearing layer composition being coated in described corrosion resistant layer；
Described bearing block body is made up of the raw material of following weight portion:
Carbon 1.8%-2.2%, silicon 1.3%-1.6%, manganese 0.04%-0.08%, sulfur 0.03%-0.04%, magnesium 0.02%- 0.06%, zinc 0.03%-0.08%, chromium 0.05%-0.09%, copper 0.04%-0.07%, cerium 0.03%-0.04%, rhenium 0.01%-0.02%, carborundum 0.03%-0.05%, oilstone 0.02%-0.04%, corundum 0.03%-0.07%, Xiuyan Jade 0.05%-0.06%, granite 0.03%-0.04%, obsidian 0.02%-0.05%, nickel vananum powder 0.04%- 0.07%, surplus is ferrum；
Described corrosion resistant layer is made up of the raw material of following weight portion:
Ceramics 0.05%-0.06%, tungsten carbide powder 0.03%-0.08%, cobalt powder 0.04%-0.08%, potassium steel powder 0.02%-0.04%, titanium dioxide 0.01%-0.02%, zirconium oxide 0.03%-0.04%, silicon 0.04%-0.07%, germanium 0.02%-0.06%, ferrite 0.03%-0.04%, alloyed powder 0.05%-0.06%, quartz sand 0.02%-0.05%, carbon SiClx powder 0.04%-0.07%, sodium silicate 0.04%-0.05%, gallium nitride 0.04%-0.08%, glass fibre 0.01%- 0.04%, aluminium nitride 0.02%-0.03%, surplus is zinc；
Described wearing layer is made up of the raw material of following weight portion:
Aluminium nitride 18-30 part, Graphene 20-25 part, tungsten carbide powder 9-12 part, silicon dioxide 7-10 part, potassium steel powder 12-15 Part, carborundum 5-8 part, titanium dioxide 3-6 part, zirconium oxide 7-10 part.
2. a kind of abrasion-proof corrosion-proof bearing block as claimed in claim 1, it is characterised in that the nickel vanadium of described composition bearing block body In Al alloy powder raw material, nickel, vanadium, aluminum mass ratio are respectively 1:3:1.5.
3. a kind of abrasion-proof corrosion-proof bearing block as claimed in claim 1, it is characterised in that described corrosion resistant layer and wearing layer thickness model Enclose respectively 0.8～1.2mm, 1.0～1.7mm.
4. a kind of abrasion-proof corrosion-proof bearing block as claimed in claim 1, it is characterised in that described corrosion resistant layer and wearing layer thickness ratio For 1:(1.2～1.5).
5. a kind of abrasion-proof corrosion-proof bearing block as claimed in claim 1, it is characterised in that described corrosion resistant layer is divided with wearing layer thickness Wei 1mm, 1.3mm.
CN201610654149.0A 2016-08-10 2016-08-10 A kind of abrasion-proof corrosion-proof bearing block Pending CN106191653A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107670402A (en) * 2017-11-07 2018-02-09 邵莹 A kind of filter core suitable for municipal sewage treatment
CN107670401A (en) * 2017-11-07 2018-02-09 邵莹 Trade effluent efficient process filtration core
CN107744691A (en) * 2017-11-07 2018-03-02 邵莹 Chloroazotic acid handles single-purpose filtering element
CN107754452A (en) * 2017-11-07 2018-03-06 邵莹 Filter core for AMMONIA TREATMENT
CN109837475A (en) * 2017-11-27 2019-06-04 宜兴市乐华冶金辅助材料有限公司 A kind of high intensity valve
CN109868431A (en) * 2017-12-04 2019-06-11 宜兴市乐华冶金辅助材料有限公司 A kind of bucket tooth material
CN109868426A (en) * 2017-12-04 2019-06-11 宜兴市乐华冶金辅助材料有限公司 A kind of high-performance toothholder material
CN110093551A (en) * 2019-03-22 2019-08-06 肖仁德 Corrosion resistant steel alloy of resistance to stress and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1176315A (en) * 1996-07-25 1998-03-18 Ae格策有限公司 Iron casting alloy for producing piston ring of internal-combustion engine
CN102575330A (en) * 2009-10-26 2012-07-11 新日本制铁株式会社 Alloyed hot-dip galvanized steel sheet and manufacturing method therefor
CN103277629A (en) * 2013-06-09 2013-09-04 严建山 Abrasion resistant cast tube with high temperature oxidation resistant anticorrosive coating
CN104152788A (en) * 2014-08-01 2014-11-19 宁国市宁武耐磨材料有限公司 Impact-resistant high-hardness wear-resistant ball

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1176315A (en) * 1996-07-25 1998-03-18 Ae格策有限公司 Iron casting alloy for producing piston ring of internal-combustion engine
CN102575330A (en) * 2009-10-26 2012-07-11 新日本制铁株式会社 Alloyed hot-dip galvanized steel sheet and manufacturing method therefor
CN103277629A (en) * 2013-06-09 2013-09-04 严建山 Abrasion resistant cast tube with high temperature oxidation resistant anticorrosive coating
CN104152788A (en) * 2014-08-01 2014-11-19 宁国市宁武耐磨材料有限公司 Impact-resistant high-hardness wear-resistant ball

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107670402A (en) * 2017-11-07 2018-02-09 邵莹 A kind of filter core suitable for municipal sewage treatment
CN107670401A (en) * 2017-11-07 2018-02-09 邵莹 Trade effluent efficient process filtration core
CN107744691A (en) * 2017-11-07 2018-03-02 邵莹 Chloroazotic acid handles single-purpose filtering element
CN107754452A (en) * 2017-11-07 2018-03-06 邵莹 Filter core for AMMONIA TREATMENT
CN109837475A (en) * 2017-11-27 2019-06-04 宜兴市乐华冶金辅助材料有限公司 A kind of high intensity valve
CN109868431A (en) * 2017-12-04 2019-06-11 宜兴市乐华冶金辅助材料有限公司 A kind of bucket tooth material
CN109868426A (en) * 2017-12-04 2019-06-11 宜兴市乐华冶金辅助材料有限公司 A kind of high-performance toothholder material
CN110093551A (en) * 2019-03-22 2019-08-06 肖仁德 Corrosion resistant steel alloy of resistance to stress and preparation method thereof

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Application publication date: 20161207