CN112266686A - Surface treatment method for forklift tire rim hub - Google Patents

Surface treatment method for forklift tire rim hub Download PDF

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Publication number
CN112266686A
CN112266686A CN202011175593.7A CN202011175593A CN112266686A CN 112266686 A CN112266686 A CN 112266686A CN 202011175593 A CN202011175593 A CN 202011175593A CN 112266686 A CN112266686 A CN 112266686A
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treatment
hub
treating agent
steel ring
forklift
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CN202011175593.7A
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Chinese (zh)
Inventor
周祥
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Anhui Anshun Forklift Manufacturing Co ltd
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Anhui Anshun Forklift Manufacturing Co ltd
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Priority to CN202011175593.7A priority Critical patent/CN112266686A/en
Publication of CN112266686A publication Critical patent/CN112266686A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • C25F1/02—Pickling; Descaling
    • C25F1/04—Pickling; Descaling in solution
    • C25F1/06—Iron or steel
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention discloses a surface treatment method of a forklift tire steel rim hub, which belongs to the technical field of hub processing and comprises the following steps: (1) performing electrochemical cleaning treatment; (2) carrying out corona treatment; (3) primary spray coating treatment; (4) and (5) secondary spraying treatment. The tensile strength and the impact strength of the forklift steel ring hub treated by the method are both obviously improved, the service life of a forklift tire is effectively prolonged, resources and energy are saved to a certain extent, and the method meets the target of sustainable development.

Description

Surface treatment method for forklift tire rim hub
Technical Field
The invention belongs to the technical field of hub processing, and particularly relates to a surface treatment method for a forklift tire rim hub.
Background
The forklift hub is a key part in the driving process of a vehicle, and is generally easy to generate fatigue damage due to the fact that the forklift hub mainly bears large impact load and is worn for a long time in the driving process, so that the driving safety of the vehicle is directly influenced. In addition, in order to realize energy conservation and emission reduction, protect the environment and create an economic and social sustainable development atmosphere, the research and development of advanced high-strength steel ring hubs and the development of production process technology thereof become the problems which are urgently needed to be solved by the steel industry in China. The method is a necessary way for realizing sustainable development and accelerating the transformation from the iron and steel major country to the iron and steel strong country. Energy conservation and safety have become a major concern in the automotive industry since the 21 st century, with the exacerbation of energy crisis and environmental concerns. To achieve the above object, it is a very effective method to increase the strength of the hub.
Disclosure of Invention
The invention aims to provide a surface treatment method for a forklift tire rim hub, which aims to overcome the defects in the prior art.
The technical scheme adopted by the invention is as follows:
a surface treatment method for a forklift tire steel rim hub comprises the following steps:
(1) electrochemical cleaning treatment:
pouring cleaning liquid into an electrolytic tank, completely immersing the steel ring hub to be treated into the electrolytic tank, switching on a power supply to carry out electrochemical cleaning treatment, filtering after the electrochemical cleaning treatment is finished, and drying for later use;
(2) corona treatment:
placing the steel ring hub subjected to the electrochemical cleaning treatment in the step (1) into a corona discharge instrument for corona treatment for 30-40 s;
(3) primary spray coating treatment:
uniformly spraying a treating agent on the surface of the steel ring hub subjected to corona treatment in the step (2), performing electron beam irradiation treatment while spraying, and naturally airing for later use;
(4) secondary spray coating treatment:
and (4) uniformly spraying the treating agent on the surface of the steel ring hub subjected to the primary spraying treatment in the step (3), and naturally drying the steel ring hub after the treatment.
Further, the cleaning solution in the step (1) comprises the following components in percentage by weight: 2-3% of stearic acid, 7-9% of sodium dodecyl benzene sulfonate, 2.3-2.7% of potassium lactate, 0.7-0.9% of coumarin, 3-5% of carbendazim, 3-4% of tartaric acid and the balance of 75% ethanol.
Further, the voltage during the electrochemical cleaning treatment in the step (1) is 180-200V, the current is 2-4A, and the treatment time is 2-3 h.
Further, the voltage of the corona treatment in the step (2) is 7-13 kV.
Further, the treating agent in the step (3) and the treating agent in the step (4) are the same component, wherein the components and the corresponding weight percentages are as follows: 5-10% of shellac, 33-45% of epoxy resin, 4-5% of microcrystalline cellulose, 1-2% of potassium lactate, 2.3-2.7% of phospholipid, 0.6-0.8% of nano silicon dioxide, 0.55-0.85% of zinc acetate dihydrate, 0.07-0.09% of N, N-dimethylformamide, 0.003-0.009% of fatty alcohol-polyoxyethylene ether, and the balance of deionized water.
Further, the dosage of the electron beam irradiation treatment in the step (3) is 3-4 multiplied by 104rad/s。
Further, the spraying thickness of the treating agent in the step (3) is 1-1.4 μm.
Further, the spraying thickness of the treating agent in the step (4) is 10-14 μm.
The invention has the following beneficial effects:
the invention researches and develops a surface treatment method of the forklift tire steel ring hub aiming at the use characteristics of the forklift wheel hub, the development dynamic of the current steel industry and the problems of low strength, low safety coefficient and short service life of the current forklift steel ring hub in the use process. Specifically, firstly, a steel ring wheel hub is placed in an electrolytic bath for electrochemical cleaning treatment, chemical components in cleaning liquid are degraded and act on the steel ring wheel hub under the action of current and voltage to achieve the effect of deep cleaning, then corona treatment is carried out to activate the surface of the steel ring wheel hub, the adhesion of a treating agent is improved, crystal grains are refined, the strength is improved, the treating agent is sprayed on the surface of the steel ring wheel hub, when the rigid structure of the wheel hub and the treating agent are radiated by a high-energy electron beam, the energy of the radiation of the incident electron beam is lost, atoms in impacted molecules are released and excited, a certain amount of active free radicals are formed on a molecular chain framework, due to the large steric hindrance of the groups, the molecular structure is broken and degraded, the surface of the wheel hub is subjected to micro-etching, the treating agent is tightly adhered to the surface of the wheel hub, then secondary spraying treatment is carried out, and the suspected gap problem which may, the performance of the reinforcing treatment agent on the steel ring hub is improved, and the strength of the hub is improved.
Detailed Description
The following will clearly and completely describe the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A surface treatment method for a forklift tire steel rim hub comprises the following steps:
(1) electrochemical cleaning treatment:
pouring cleaning liquid into an electrolytic tank, completely immersing the steel ring hub to be treated into the electrolytic tank, switching on a power supply to carry out electrochemical cleaning treatment, filtering after the electrochemical cleaning treatment is finished, and drying for later use;
(2) corona treatment:
placing the steel ring hub subjected to the electrochemical cleaning treatment in the step (1) into a corona discharge instrument for corona treatment for 30 s;
(3) primary spray coating treatment:
uniformly spraying a treating agent on the surface of the steel ring hub subjected to corona treatment in the step (2), performing electron beam irradiation treatment while spraying, and naturally airing for later use;
(4) secondary spray coating treatment:
and (4) uniformly spraying the treating agent on the surface of the steel ring hub subjected to the primary spraying treatment in the step (3), and naturally drying the steel ring hub after the treatment.
The cleaning solution in the step (1) comprises the following components in percentage by weight: 2% of stearic acid, 7% of sodium dodecyl benzene sulfonate, 2.3% of potassium lactate, 0.7% of coumarin, 3% of carbendazim, 3% of tartaric acid and the balance of 75% of ethanol.
The voltage during the electrochemical cleaning treatment in the step (1) is 180V, the current is 2A, and the treatment time is 2 h.
The voltage of the corona treatment in the step (2) is 7 kV.
The treating agent in the step (3) and the step (4) is the same component, wherein the components and the corresponding weight percentages are as follows: 5% of shellac, 33% of epoxy resin, 4% of microcrystalline cellulose, 1% of potassium lactate, 2.3% of phospholipid, 0.6% of nano silicon dioxide, 0.55% of zinc acetate dihydrate, 0.07% of N, N-dimethylformamide, 0.003% of fatty alcohol-polyoxyethylene ether and the balance of deionized water.
The dose of the electron beam irradiation treatment in the step (3) is 3X 104rad/s。
The spraying thickness of the treating agent in the step (3) is 1 μm.
The spraying thickness of the treating agent in the step (4) is 10 μm.
Example 2
A surface treatment method for a forklift tire steel rim hub comprises the following steps:
(1) electrochemical cleaning treatment:
pouring cleaning liquid into an electrolytic tank, completely immersing the steel ring hub to be treated into the electrolytic tank, switching on a power supply to carry out electrochemical cleaning treatment, filtering after the electrochemical cleaning treatment is finished, and drying for later use;
(2) corona treatment:
placing the steel ring hub subjected to the electrochemical cleaning treatment in the step (1) into a corona discharge instrument for corona treatment for 35 s;
(3) primary spray coating treatment:
uniformly spraying a treating agent on the surface of the steel ring hub subjected to corona treatment in the step (2), performing electron beam irradiation treatment while spraying, and naturally airing for later use;
(4) secondary spray coating treatment:
and (4) uniformly spraying the treating agent on the surface of the steel ring hub subjected to the primary spraying treatment in the step (3), and naturally drying the steel ring hub after the treatment.
The cleaning solution in the step (1) comprises the following components in percentage by weight: 2.5% of stearic acid, 8% of sodium dodecyl benzene sulfonate, 2.5% of potassium lactate, 0.8% of coumarin, 4% of carbendazim, 3.5% of tartaric acid and the balance of 75% of ethanol.
The voltage during the electrochemical cleaning treatment in the step (1) is 190V, the current is 3A, and the treatment time is 2.5 h.
The voltage of the corona treatment in the step (2) is 10 kV.
The treating agent in the step (3) and the step (4) is the same component, wherein the components and the corresponding weight percentages are as follows: 7.5% of shellac, 39% of epoxy resin, 4.5% of microcrystalline cellulose, 1.5% of potassium lactate, 2.5% of phospholipid, 0.7% of nano silicon dioxide, 0.655% of zinc acetate dihydrate, 0.08% of N, N-dimethylformamide, 0.006% of fatty alcohol-polyoxyethylene ether and the balance of deionized water.
The dose of the electron beam irradiation treatment in the step (3) is 3.5X 104rad/s。
The spraying thickness of the treating agent in the step (3) is 1.2 mu m.
The spraying thickness of the treating agent in the step (4) is 12 μm.
Example 3
A surface treatment method for a forklift tire steel rim hub comprises the following steps:
(1) electrochemical cleaning treatment:
pouring cleaning liquid into an electrolytic tank, completely immersing the steel ring hub to be treated into the electrolytic tank, switching on a power supply to carry out electrochemical cleaning treatment, filtering after the electrochemical cleaning treatment is finished, and drying for later use;
(2) corona treatment:
placing the steel ring hub subjected to the electrochemical cleaning treatment in the step (1) into a corona discharge instrument for corona treatment for 40 s;
(3) primary spray coating treatment:
uniformly spraying a treating agent on the surface of the steel ring hub subjected to corona treatment in the step (2), performing electron beam irradiation treatment while spraying, and naturally airing for later use;
(4) secondary spray coating treatment:
and (4) uniformly spraying the treating agent on the surface of the steel ring hub subjected to the primary spraying treatment in the step (3), and naturally drying the steel ring hub after the treatment.
The cleaning solution in the step (1) comprises the following components in percentage by weight: 3% of stearic acid, 9% of sodium dodecyl benzene sulfonate, 2.7% of potassium lactate, 0.9% of coumarin, 5% of carbendazim, 4% of tartaric acid and the balance of 75% of ethanol.
The voltage during the electrochemical cleaning treatment in the step (1) is 200V, the current is 4A, and the treatment time is 3 h.
The voltage of the corona treatment in the step (2) is 13 kV.
The treating agent in the step (3) and the step (4) is the same component, wherein the components and the corresponding weight percentages are as follows: 10% of shellac, 45% of epoxy resin, 5% of microcrystalline cellulose, 2% of potassium lactate, 2.7% of phospholipid, 0.8% of nano silicon dioxide, 0.85% of zinc acetate dihydrate, 0.09% of N, N-dimethylformamide, 0.009% of fatty alcohol-polyoxyethylene ether and the balance of deionized water.
The dose of the electron beam irradiation treatment in the step (3) is 4X 104rad/s。
The spraying thickness of the treating agent in the step (3) is 1.4 mu m.
The spraying thickness of the treating agent in the step (4) is 14 μm.
Comparative example 1
This comparative example 1 was compared with example 2, omitting the whole procedure of the electrochemical cleaning treatment of step (1), except that the steps of the method were the same.
Comparative example 2
This comparative example 2 compared to example 2, the entire process of corona treatment of step (2) was omitted, except that the process steps were otherwise identical.
Comparative example 3
This comparative example 3 was compared with example 2, and the whole process of the one-time spray coating treatment in step (3) was omitted, except that the other steps of the method were the same.
Comparative example 4
In this comparative example 4, compared with example 2, the whole process of the second spray treatment in step (4) was omitted, except that the steps of the method were the same.
In order to compare the effects of the invention, the same batch of produced forklift steel ring hubs with the same model and the same specification and size are selected, the selected steel ring hubs are randomly divided into 5 groups with equal quality and quantity, then each group of steel ring hubs are correspondingly processed by the methods of the embodiment 2 and the comparative embodiments 1 to 4 respectively, after the performance test is completed, the tensile performance is tested according to the specification of GB6397-86, the impact strength is tested according to the specification of GB2106-80, each group of the test is simultaneously subjected to 6 parallel tests, the average value of the test is taken as the final test result, and the specific test comparison data are shown in the following table:
TABLE 1
Tensile Strength (MPa) Impact strength (J/cm)2)
Example 2 1646 176
Comparative example 1 1438 153
Comparative example 2 1601 169
Comparative example 3 1355 123
Comparative example 4 1464 142
As can be seen from the above table 1, the tensile strength and the impact strength of the forklift steel ring hub treated by the method are both obviously improved, the service life of the forklift tire is effectively prolonged, resources and energy are saved to a certain extent, and the method meets the target of sustainable development.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not limited to the illustrated embodiments, and all the modifications and equivalents of the embodiments may be made without departing from the spirit of the present invention.

Claims (8)

1. A surface treatment method for a forklift tire steel rim hub is characterized by comprising the following steps:
(1) electrochemical cleaning treatment:
pouring cleaning liquid into an electrolytic tank, completely immersing the steel ring hub to be treated into the electrolytic tank, switching on a power supply to carry out electrochemical cleaning treatment, filtering after the electrochemical cleaning treatment is finished, and drying for later use;
(2) corona treatment:
placing the steel ring hub subjected to the electrochemical cleaning treatment in the step (1) into a corona discharge instrument for corona treatment for 30-40 s;
(3) primary spray coating treatment:
uniformly spraying a treating agent on the surface of the steel ring hub subjected to corona treatment in the step (2), performing electron beam irradiation treatment while spraying, and naturally airing for later use;
(4) secondary spray coating treatment:
and (4) uniformly spraying the treating agent on the surface of the steel ring hub subjected to the primary spraying treatment in the step (3), and naturally drying the steel ring hub after the treatment.
2. The surface treatment method for the forklift tire steel rim hub as claimed in claim 1, wherein the cleaning solution in the step (1) comprises the following components in percentage by weight: 2-3% of stearic acid, 7-9% of sodium dodecyl benzene sulfonate, 2.3-2.7% of potassium lactate, 0.7-0.9% of coumarin, 3-5% of carbendazim, 3-4% of tartaric acid and the balance of 75% ethanol.
3. The surface treatment method for the forklift tire steel rim hub as claimed in claim 1, wherein the voltage during the electrochemical cleaning treatment in step (1) is 180-200V, the current is 2-4A, and the treatment time is 2-3 h.
4. The surface treatment method for the forklift tire steel rim hub as claimed in claim 1, wherein the corona treatment voltage in the step (2) is 7-13 kV.
5. The surface treatment method for the forklift tire steel rim hub as claimed in claim 1, wherein the treating agent in the step (3) and the treating agent in the step (4) are the same component, wherein the components and the corresponding weight percentages are as follows: 5-10% of shellac, 33-45% of epoxy resin, 4-5% of microcrystalline cellulose, 1-2% of potassium lactate, 2.3-2.7% of phospholipid, 0.6-0.8% of nano silicon dioxide, 0.55-0.85% of zinc acetate dihydrate, 0.07-0.09% of N, N-dimethylformamide, 0.003-0.009% of fatty alcohol-polyoxyethylene ether, and the balance of deionized water.
6. The surface treatment method for forklift tire steel rim hubs as claimed in claim 1, wherein the dosage of electron beam irradiation treatment in step (3) is 3-4 x 104rad/s。
7. The surface treatment method for the forklift tire steel rim hub as claimed in claim 1, wherein the spraying thickness of the treating agent in the step (3) is 1-1.4 μm.
8. The surface treatment method for the forklift tire steel rim hub as claimed in claim 1, wherein the spraying thickness of the treating agent in the step (4) is 10-14 μm.
CN202011175593.7A 2020-10-27 2020-10-27 Surface treatment method for forklift tire rim hub Withdrawn CN112266686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011175593.7A CN112266686A (en) 2020-10-27 2020-10-27 Surface treatment method for forklift tire rim hub

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011175593.7A CN112266686A (en) 2020-10-27 2020-10-27 Surface treatment method for forklift tire rim hub

Publications (1)

Publication Number Publication Date
CN112266686A true CN112266686A (en) 2021-01-26

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Country Status (1)

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