NL2031102B1 - Environment-friendly electric cleaning degreaser for shield tunneling machine cutter head and degreasing method thereof - Google Patents

Environment-friendly electric cleaning degreaser for shield tunneling machine cutter head and degreasing method thereof Download PDF

Info

Publication number
NL2031102B1
NL2031102B1 NL2031102A NL2031102A NL2031102B1 NL 2031102 B1 NL2031102 B1 NL 2031102B1 NL 2031102 A NL2031102 A NL 2031102A NL 2031102 A NL2031102 A NL 2031102A NL 2031102 B1 NL2031102 B1 NL 2031102B1
Authority
NL
Netherlands
Prior art keywords
tunneling machine
shield tunneling
cutter head
treated
electric cleaning
Prior art date
Application number
NL2031102A
Other languages
Dutch (nl)
Inventor
Chen Shuguang
Bao Chunjiang
Zhang Ruikong
Wu Zenglei
Xu Lipeng
Zhang Chuanzhou
Original Assignee
Univ Liaocheng
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ Liaocheng filed Critical Univ Liaocheng
Application granted granted Critical
Publication of NL2031102B1 publication Critical patent/NL2031102B1/en

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The present disclosure provides an environment—friendly electric cleaning degreaser for a shield tunneling machine cutter head which is prepared by adding water into the following raw materials in. mass concentration: hydroxide, carbonate, sodium. disilicate, chloride and sodium dodecyl benzene sulfonate. The present disclosure also provides a degreasing method of the environment— friendly electric cleaning degreaser for the shield tunneling machine cutter head, comprising the steps of: an electrode is inserted into an inner hole of the shield tunneling machine cutter head, to be treated; the electrode is wrapped, with. a polyester cotton sheath dipped with the environment—friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner hole of the shield tunneling machine cutter head to be treated are rotationally contacted for degreasing; the positive and negative polarity combined degreasing is adopted.

Description

ENVIRONMENT-FRIENDLY ELECTRIC CLEANING DEGREASER FOR SHIELD
TUNNELING MACHINE CUTTER HEAD AND DEGREASING METHOD THEREOF
TECHNICAL FIELD
The present disclosure belongs to the field of surface treat- ment, and particularly relates to an environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head and a degreasing method thereof.
BACKGROUND ART
In the installation process of alloy nails of a large shield tunneling cutter, the tightening force between the alloy nails and a cutter head base body is greatly reduced due to the existence of lubricating oil film, alkali liquor is usually adopted for clean- ing and degreasing, but the traditional impregnation degreasing efficiency is low, the whole cutter head will be contaminated by degreasing through an impregnation method, and the working envi- ronment is poor.
SUMMARY
In order to overcome the above defects in the prior art, the present disclosure provides an environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head and a degreasing method thereof. The electric cleaning process of the electric cleaning degreaser is short in cleaning time and high in cleaning efficiency, the degreasing method realizes high-speed and high-precision fixed-point cleaning, and the tightening force of the alloy nails of the shield tunneling machine cutter head can be enhanced after cleaning.
In order to solve the technical problems, the present disclo- sure adopts the following technical solution: an environment- friendly electric cleaning degreaser for a shield tunneling ma- chine cutter head is prepared by adding water into the following raw materials in mass concentration: 20-50 g/L of hydroxide, 20-50 g/L of carbonate, 40-100 g/L of sodium disilicate, 2-5 g/L of chloride and 0.05-0.15 g/L of sodium dodecyl benzene sulfonate.
Preferably, the hydroxide is sodium hydroxide or potassium hydroxide.
Preferably, the carbonate is sodium carbonate or potassium carbonate.
Preferably, the chloride is sodium chloride or potassium chloride.
The present disclosure also provides a degreasing method of the environment-friendly electric cleaning degreaser for the shield tunneling machine cutter head. The method comprises the following steps:
An electrode is inserted into an inner hole of the shield tunneling machine cutter head to be treated; the electrode is wrapped with a polyester cotton sheath dipped with the environ- ment-friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner hole of the shield tunneling machine cutter head to be treated are rotationally contacted for degreasing; and under the conditions that the electric cleaning voltage is 12-18 V and relative motion speed of the electrode and the surface of the shield tunneling ma- chine cutter head to be treated is 10-20 cm/s, the positive and negative polarity combined degreasing is adopted.
The positive and negative polarity combined degreasing method comprises the following steps: the positive electrode electric cleaning is performed; the shield tunneling machine cutter head to be treated is connected with a negative electrode of a DC power supply for 10-30 s, and is electrically cleaned by the negative electrode; the shield tunneling machine cutter head to be treated is connected with a positive electrode of the DC power supply for 5-10 s, and is electrically cleaned by the positive electrode; the shield tunneling machine cutter head to be treated is connected with the negative electrode of the DC power supply for 10-30 s, and is electrically cleaned by the negative electrode; and the shield tunneling machine cutter head to be treated is connected with the positive electrode of the DC power supply for 5-10 s to finish the degreasing of the shield tunneling machine cutter head to be treated.
In the present disclosure, firstly, positive electrode elec- tric cleaning is carried out, and the shield machine cutter head to be treated is connected with the negative electrode of the DC power supply; during electric cleaning, hydrogen ions in the envi- ronment-friendly electric cleaning degreaser on the surface of a part is reduced to form H, to be separated out; and an oil film breaks under the mechanical stripping action of H, bubbles to real- ize rapid and thorough removal of oil stains on the surface of the cutter head. The material of the cutter head is sensitive to hy- drogen so that negative electrode electric cleaning is carried out after positive electrode electric cleaning; and the shield machine cutter head to be treated is connected with the positive electrode of the DC power supply, and OH in the environment-friendly elec- tric cleaning degreaser is oxidized on the surface of a cutter to generate 0, to be separated out, thus mechanical stripping of oxy- gen bubbles is realized.
Compared with the prior art, the present disclosure has the following advantages:
The environment-friendly electric cleaning degreaser is free of phosphorization, sodium phosphate in traditional electric cleaning liquid is replaced by sodium disilicate, and thus phos- phorization-free treatment of the electric cleaning liquid is achieved; meanwhile, the particle surface of the electric cleaning liquid needs to adsorb equivalent positive ions, the combining ca- pacity of the positive ions to Ca®%’ and Mg” is very high, so water softening is achieved to a great extent; in addition, the electric cleaning liquid has a good adsorption effect on a surface active agent. The sodium disilicate carries negative charges, the polari- ty of the sodium disilicate is the same as that of an anionic sur- factant that is sodium dodecyl benzene sulfonate, opposite charges repel each other, so a good dispersion effect is formed among all components of the electric cleaning liquid due to this character- istic. Due to the addition of the anionic surfactant that is sodi- um dodecyl benzene sulfonate, the tension of the electric cleaning liquid surface is reduced, the interface wettability is improved, the emulsibility of the electric cleaning degreaser is enhanced, and the stability of effective components in the system is guaran-
teed; meanwhile, adhesion of calcium ions to the metal surface in the electric cleaning process is restrained, and it is particular- ly important in switching of positive and negative electrodes in the electric cleaning process because the alkalinity of a work- piece surface solution is enhanced when positive electrode elec- tric cleaning is adopted, a cutter head surface solution is acidic when negative electrode electric cleaning is adopted, and positive and negative polarity switching usually causes agglomeration fail- ure of the surface active agent, therefore, the sodium dodecyl benzene sulfonate is adopted as the amphoteric active agent, the chemical properties of alkali, dilute acid and hard water are sta- ble, and the surface activity of a brush plating solution can be maintained when the positive and negative electrodes are switched.
According to the electric cleaning technology, the cleaning time is only 30-80 s, the cleaning efficiency can reach 90-98%, and meanwhile the alloy nail tightening force of the shield tunneling machine cutter head can be enhanced after cleaning.
The present disclosure will be further described in detail below in conjunction with the embodiments.
DETAILED DESCRIPTION OF THE EMBODIMENTS
Example 1
An environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head provided in this example was prepared by adding water into the following raw materials in mass concentration: 30 g/L of sodium hydroxide, 40 g/L of sodium car- bonate, 50 g/L of sodium disilicate, 4 g/L of sodium chloride and 0.05 g/L of sodium dodecyl benzene sulfonate.
This example also provided a degreasing method of the envi- ronment-friendly electric cleaning degreaser for the shield tun- neling machine cutter head. The method comprised the following steps:
This example also provided a degreasing method of the envi- ronment-friendly electric cleaning degreaser for the shield tun- neling machine cutter head. The method comprised the following steps:
An electrode was inserted into an inner hole of the shield tunneling machine cutter head to be treated; the electrode was wrapped with a polyester cotton sheath dipped with the environ- ment-friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner 5 hole of the shield tunneling machine cutter head to be treated were rotationally contacted for degreasing; and under the condi- tions that the electric cleaning voltage is 16 V and relative mo- tion speed of the electrode and the surface of the shield tunnel- ing machine cutter head to be treated was 10 cm/s, the positive and negative polarity combined degreasing was adopted;
The positive and negative polarity combined degreasing method comprised the following steps: the positive electrode electric cleaning was performed; the shield tunneling machine cutter head to be treated was connected with a negative electrode of a DC pow- er supply for 10 s, and was electrically cleaned by the negative electrode; the shield tunneling machine cutter head to be treated was connected with a positive electrode of the DC power supply for 5 s, and was electrically cleaned by the positive electrode; the shield tunneling machine cutter head to be treated was connected with the negative electrode of the DC power supply for 10 s, and was electrically cleaned by the negative electrode; and the shield tunneling machine cutter head to be treated was connected with the positive electrode of the DC power supply for 5 s to finish the degreasing of the shield tunneling machine cutter head to be treated.
The degrease rate of an environment-friendly electric clean- ing degreaser for a shield tunneling machine cutter head in this example was 98%, the surface friction factor was 0.19, and the cleaning time was 30 s in total. After degreasing was conducted through an electric cleaning method, the tightening force (74,544.7N) of an alloy nail of the cutter head (the hole diameter of 22 mm, and the interference of 0.07 mm) was increased by 54.9% compared with the tightening force (48,121.1N) in an uncleaned state.
A conventional cleaning agent (including components: 2.0 g/L of disodium dodecyl {sulphonatophenoxy) benzenesulphonate, 0.5 g/L of isomeric fatty alcohol alkoxylate (EH-6), 1.5 g/L of isomeric
C10 alcohol polyoxyethylene ether, 0.8 g/L of fatty alcohol- alkylene oxide copolymer, 5.0 g/L of sodium metasilicate pentahy- drate, 20.0 g/L of sodium carbonate and 10.0 g/L of sodium tripol- yphosphate) was used, the cutter head was soaked in the conven- tional cleaning agent for cleaning for 5 min, the cleaning rate was 80%, the surface friction factor was 0.145, and the tightening force (56,889.4N) of the alloy nail was increased by 18.2% com- pared with the tightening force (48,121.1N) in the uncleaned state.
Example 2
An environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head provided in this example was prepared by adding water into the following raw materials in mass concentration: 50 g/L of sodium hydroxide, 20 g/L of potassium carbonate, 90 g/L of sodium disilicate, 2 g/L of potassium chlo- ride and 0.10 g/L of sodium dodecyl benzene sulfonate.
This example also provided a degreasing method of the envi- ronment-friendly electric cleaning degreaser for the shield tun- neling machine cutter head. The method comprised the following steps:
An electrode was inserted into an inner hole of the shield tunneling machine cutter head to be treated; the electrode was wrapped with a polyester cotton sheath dipped with the environ- ment-friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner hole of the shield tunneling machine cutter head to be treated were rotationally contacted for degreasing; and under the condi- tions that the electric cleaning voltage is 16 V and relative mo- tion speed of the electrode and the surface of the shield tunnel- ing machine cutter head to be treated was 10 cm/s, the positive and negative polarity combined degreasing was adopted;
The positive and negative polarity combined degreasing method comprised the following steps: the positive electrode electric cleaning was performed; the shield tunneling machine cutter head to be treated was connected with a negative electrode of a DC pow- er supply for 30 s, and was electrically cleaned by the negative electrode; the shield tunneling machine cutter head to be treated was connected with a positive electrode of the DC power supply for 10 s, and was electrically cleaned by the positive electrode; the shield tunneling machine cutter head to be treated was connected with the negative electrode of the DC power supply for 30 s, and was electrically cleaned by the negative electrode; and the shield tunneling machine cutter head to be treated was connected with the positive electrode of the DC power supply for 10 s to finish the degreasing of the shield tunneling machine cutter head to be treated.
The degrease rate of an environment-friendly electric clean- ing degreaser for a shield tunneling machine cutter head in this example was 97.5%, the surface friction factor was 0.17, and the cleaning time was 80 s in total. After degreasing was conducted through an electric cleaning method, the tightening force (70,621.3 N) of an alloy nail of the cutter head (the hole diame- ter of 22 mm, and the interference of 0.7 mm) was increased by 46.7% compared with the tightening force (48,121.1N) in an un- cleaned state.
Example 3
An environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head provided in this example was prepared by adding water into the following raw materials in mass concentration: 50 g/L of potassium hydroxide, 40 g/L of potassium carbonate, 100 g/L of sodium disilicate, 5 g/L of potassium chlo- ride and 0.15 g/L of sodium dodecyl benzene sulfonate.
This example also provided a degreasing method of the envi- ronment-friendly electric cleaning degreaser for the shield tun- neling machine cutter head. The method comprised the following steps:
An electrode was inserted into an inner hole of the shield tunneling machine cutter head to be treated; the electrode was wrapped with a polyester cotton sheath dipped with the environ- ment-friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner hole of the shield tunneling machine cutter head to be treated were rotationally contacted for degreasing; and under the condi- tions that the electric cleaning voltage is 12 V and relative mo-
tion speed of the electrode and the surface of the shield tunnel- ing machine cutter head to be treated was 10 cm/s, the positive and negative polarity combined degreasing was adopted;
The positive and negative polarity combined degreasing method comprised the following steps: the positive electrode electric cleaning was performed; the shield tunneling machine cutter head to be treated was connected with a negative electrode of a DC pow- er supply for 15 s, and was electrically cleaned by the negative electrode; the shield tunneling machine cutter head to be treated was connected with a positive electrode of the DC power supply for 5 s, and was electrically cleaned by the positive electrode; the shield tunneling machine cutter head to be treated was connected with the negative electrode of the DC power supply for 15 s, and was electrically cleaned by the negative electrode; and the shield tunneling machine cutter head to be treated was connected with the positive electrode of the DC power supply for 5 s to finish the degreasing of the shield tunneling machine cutter head to be treated.
The degrease rate of an environment-friendly electric clean- ing degreaser for a shield tunneling machine cutter head in this example was 96.5%, the surface friction factor was 0.17, and the cleaning time was 40 s in total. After degreasing was conducted through an electric cleaning method, the tightening force (66,697.9 N) of an alloy nail of the cutter head was increased by 38.6% compared with the tightening force (48,121.1N) in an un- cleaned state.
Example 4
An environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head provided in this example was prepared by adding water into the following raw materials in mass concentration: 20 g/L of sodium hydroxide, 20 g/L of sodium car- bonate, 40 g/L of sodium disilicate, 2 g/L of sodium chloride and 0.05 g/L of sodium dodecyl benzene sulfonate.
This example also provided a degreasing method of the envi- ronment-friendly electric cleaning degreaser for the shield tun- neling machine cutter head. The method comprised the following steps:
An electrode was inserted into an inner hole of the shield tunneling machine cutter head to be treated; the electrode was wrapped with a polyester cotton sheath dipped with the environ- ment-friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner hole of the shield tunneling machine cutter head to be treated were rotationally contacted for degreasing; and under the condi- tions that the electric cleaning voltage is 18 V and relative mo- tion speed of the electrode and the surface of the shield tunnel- ing machine cutter head to be treated was 20 cm/s, the positive and negative polarity combined degreasing was adopted;
The positive and negative polarity combined degreasing method comprised the following steps: the positive electrode electric cleaning was performed; the shield tunneling machine cutter head to be treated was connected with a negative electrode of a DC pow- er supply for 15 s, and was electrically cleaned by the negative electrode; the shield tunneling machine cutter head to be treated was connected with a positive electrode of the DC power supply for 5 g, and was electrically cleaned by the positive electrode; the shield tunneling machine cutter head to be treated was connected with the negative electrode of the DC power supply for 15 s, and was electrically cleaned by the negative electrode; and the shield tunneling machine cutter head to be treated was connected with the positive electrode of the DC power supply for 5 s to finish the degreasing of the shield tunneling machine cutter head to be treated.
The degrease rate of an environment-friendly electric clean- ing degreaser for a shield tunneling machine cutter head in this example was 90.8%, the surface friction factor was 0.15, and the cleaning time was 40 s in total. After degreasing was conducted through an electric cleaning method, the tightening force (58,851.1 N) of an alloy nail of the cutter head (the hole diame- ter of 22 mm, and the interference of 0.7 mm) was increased by 22.3% compared with the tightening force (48,121.1N) in an un- cleaned state.
Example 5
An environment-friendly electric cleaning degreaser for a shield tunneling machine cutter head provided in this example was prepared by adding water into the following raw materials in mass concentration: 20 g/L of potassium hydroxide, 40 g/L of sodium carbonate, 80 g/L of sodium disilicate, 4 g/L of potassium chlo- ride and 0.10 g/L of sodium dodecyl benzene sulfonate.
This example also provided a degreasing method of the envi- ronment-friendly electric cleaning degreaser for the shield tun- neling machine cutter head. The method comprised the following steps:
An electrode was inserted into an inner hole of the shield tunneling machine cutter head to be treated; the electrode was wrapped with a polyester cotton sheath dipped with the environ- ment-friendly electric cleaning degreaser for the shield tunneling machine cutter head; the polyester cotton sheath and the inner hole of the shield tunneling machine cutter head to be treated were rotationally contacted for degreasing; and under the condi- tions that the electric cleaning voltage is 12 V and relative mo- tion speed of the electrode and the surface of the shield tunnel- ing machine cutter head to be treated was 15 cm/s, the positive and negative polarity combined degreasing was adopted;
The positive and negative polarity combined degreasing method comprised the following steps: the positive electrode electric cleaning was performed; the shield tunneling machine cutter head to be treated was connected with a negative electrode of a DC pow- er supply for 20 s, and was electrically cleaned by the negative electrode; the shield tunneling machine cutter head to be treated was connected with a positive electrode of the DC power supply for 10 s, and was electrically cleaned by the positive electrode; the shield tunneling machine cutter head to be treated was connected with the negative electrode of the DC power supply for 20 s, and was electrically cleaned by the negative electrode; and the shield tunneling machine cutter head to be treated was connected with the positive electrode of the DC power supply for 10 s to finish the degreasing of the shield tunneling machine cutter head to be treated.
The degrease rate of an environment-friendly electric clean- ing degreaser for a shield tunneling machine cutter head in this example was 90%, the surface friction factor was 0.19, and the cleaning time was 60 s in total. After degreasing was conducted through an electric cleaning method, the tightening force (78,469.4N) of an alloy nail of the cutter head (the hole diameter of 22 mm, and the interference of 0.7 mm) was increased by 63% compared with the tightening force (48,121.1IN) in an uncleaned state.
The above description only describes the preferred embodi- ments of the present disclosure, and is not intended to limit the present disclosure in any way. Any simple modifications, altera- tions, and equivalent changes made to the above embodiments based on the technical essence of the present disclosure shall still fall within the protection scope of the technical solutions of the present disclosure.

Claims (5)

CONCLUSIESCONCLUSIONS 1. Milieuvriendelijke elektrische reinigingsontvetter voor een snijkop van een schildtunnelmachine wordt bereid door water toe te voegen aan de volgende grondstoffen in massaconcentratie: 20 tot 50 g/L hydroxide, 20 tot 50 g/L carbonaat, 40 tot 100 g /L natri- umdisilicaat, 2 tot 5 g/L chloride en 0,05 tot 0,15 g/L natriumdo- decylbenzeensulfonaat.1. Environmentally friendly electric cleaning degreaser for shield tunnel cutting head is prepared by adding water to the following raw materials in mass concentration: 20 to 50 g/L hydroxide, 20 to 50 g/L carbonate, 40 to 100 g/L sodium disilicate , 2 to 5 g/L chloride and 0.05 to 0.15 g/L sodium dodecylbenzene sulfonate. 2. Milieuvriendelijke elektrische reinigingsontvetter voor een snijkop voor een schildtunnelmachine volgens conclusie 1, met het kenmerk, dat het hydroxide natriumhydroxide of kaliumhydroxide is.An environmentally friendly electric cleaning degreaser for a cutter head for a shield tunneling machine according to claim 1, characterized in that the hydroxide is sodium hydroxide or potassium hydroxide. 3. Milieuvriendelijke elektrische reinigingsontvetter voor een snijkop voor een schildtunnelmachine volgens conclusie 1, met het kenmerk, dat het carbonaat natriumcarbonaat of kaliumcarbonaat is.An environmentally friendly electric cleaning degreaser for a cutter head for a shield tunneling machine according to claim 1, characterized in that the carbonate is sodium carbonate or potassium carbonate. 4. Milieuvriendelijke elektrische reinigingsontvetter voor een snijkop voor een schildtunnelmachine volgens conclusie 1, met het kenmerk, dat het chloride natriumchloride of kaliumchloride is.The environmentally friendly electric cleaning degreaser for a cutter head for a shield tunneling machine according to claim 1, characterized in that the chloride is sodium chloride or potassium chloride. 5. Ontvettingswerkwijze van de milieuvriendelijke elektrische rei- nigingsontvetter voor de snijkop van de schildtunnelmachine vol- gens een van de conclusies 1 tot 4, omvattende de volgende stap- pen: een elektrode wordt ingebracht in een binnenste gat van de te be- handelen snijkop van de schildtunnelmachine; de elektrode is om- wikkeld met een omhulsel van een polyesterkatoen gedrenkt in de milieuvriendelijke elektrische reinigingsontvetter voor de snijkop van de schildtunnelmachine; het omhulsel van polyesterkatoen en het binnenste gat van de te behandelen snijkop van de schildtun- nelmachine worden roterend in contact gebracht om te ontvetten; en onder de voorwaarden dat de elektrische reinigingsspanning 12 tot 18 V is en de relatieve bewegingssnelheid van de elektrode en het oppervlak van de te behandelen snijkop van de schildtunnelmachine 10 tot 20 cm/s is, wordt de gecombineerde ontvetting met positieve en negatieve polariteit toegepast; de gecombineerde ontvettingsmethode met positieve en negatieve po- lariteit omvat de volgende stappen: de elektrische reiniging van de positieve elektrode wordt uitgevoerd; de te behandelen snijkop van de schildtunnelmachine is gedurende 10 tot 30 s verbonden met een negatieve elektrode van een gelijkstroomvoeding en wordt elek- trisch gereinigd door de negatieve elektrode; de te behandelen snijkop van de schildtunnelmachine is gedurende 5 tot 10 s verbon- den met een positieve elektrode van de gelijkstroomvoeding en wordt elektrisch gereinigd door de positieve elektrode; de te be- handelen snijkop van de schildtunnelmachine is gedurende 10 tot 30 s verbonden met de negatieve elektrode van de gelijkstroomvoeding en wordt elektrisch gereinigd door de negatieve elektrode; en de te behandelen snijkop van de schildtunnelmachine is gedurende 5 tot 10 s verbonden met de positieve elektrode van de gelijkstroom- voeding om het ontvetten van de te behandelen snijkop van de schildtunnelmachine te voltooien.The degreasing method of the environmentally friendly electric cleaning degreaser for the cutting head of the shield tunneling machine according to any one of claims 1 to 4, comprising the following steps: an electrode is inserted into an inner hole of the cutting head to be treated of the shield tunnel machine; the electrode is wrapped with a polyester cotton sheath soaked in the environmentally friendly electrical cleaning degreaser for the cutting head of the shield tunneling machine; the polyester cotton shell and the inner hole of the cutting head of the shield tunnel machine to be treated are contacted in rotation to degrease; and under the conditions that the electric cleaning voltage is 12 to 18 V and the relative moving speed of the electrode and the surface of the cutting head of the shield tunneling machine to be treated is 10 to 20 cm/s, the combined positive and negative polarity degreasing is applied; the combined positive and negative polarity degreasing method includes the following steps: electrical cleaning of the positive electrode is performed; the shield tunneling machine cutting head to be treated is connected to a negative electrode of a DC power supply for 10 to 30 seconds and is electrically cleaned by the negative electrode; the cutting head of the shield tunneling machine to be treated is connected to a positive electrode of the DC power supply for 5 to 10 seconds and is electrically cleaned by the positive electrode; the cutting head of the shield tunneling machine to be treated is connected to the negative electrode of the DC power supply for 10 to 30 seconds and is electrically cleaned by the negative electrode; and the shield tunneling machine cutting head to be treated is connected to the positive electrode of the DC power supply for 5 to 10 seconds to complete degreasing of the shield tunneling machine cutting head to be treated.
NL2031102A 2021-08-25 2022-02-28 Environment-friendly electric cleaning degreaser for shield tunneling machine cutter head and degreasing method thereof NL2031102B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110978615.1A CN113684525B (en) 2021-08-25 2021-08-25 Environment-friendly electric cleaning degreasing agent for shield tunneling machine cutterhead and degreasing method thereof

Publications (1)

Publication Number Publication Date
NL2031102B1 true NL2031102B1 (en) 2023-03-15

Family

ID=78582226

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2031102A NL2031102B1 (en) 2021-08-25 2022-02-28 Environment-friendly electric cleaning degreaser for shield tunneling machine cutter head and degreasing method thereof

Country Status (2)

Country Link
CN (1) CN113684525B (en)
NL (1) NL2031102B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830942A (en) * 1957-05-24 1958-04-15 Jr Robert H Elliott Electrocleaner for brass
JPS5039636A (en) * 1973-08-14 1975-04-11
US5104501A (en) * 1989-06-13 1992-04-14 Daicel Chemical Industries, Ltd. Electrolytic cleaning method and electrolytic cleaning solution for stamper

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0790700A (en) * 1993-09-17 1995-04-04 Sumitomo Metal Ind Ltd Electrolytic washing device for cold rolled steel strip
JP2005298919A (en) * 2004-04-13 2005-10-27 Sawada Kinji Cleaning method
CN101514468B (en) * 2009-02-19 2010-11-10 中国人民解放军装甲兵工程学院 Device and method for inner bore type component brush plating
CN103521080A (en) * 2013-10-10 2014-01-22 云南城投碧水源水务科技有限责任公司 Alkaline cleaning agent for depth cleaning of separating membrane and application thereof
CN107794561A (en) * 2017-10-19 2018-03-13 江门市濠成化工科技有限公司 A kind of steel electrolytic degreasing powder and its preparation and application
CN108588730A (en) * 2018-04-20 2018-09-28 广东红日星实业有限公司 A kind of degreaser and preparation method thereof for galvanized sheet
KR20200047184A (en) * 2018-10-26 2020-05-07 (주)일신종합환경 A normal temperature defat agent applicable in normal temperature and a defat method using the same
CN111850578A (en) * 2020-07-17 2020-10-30 广东致卓环保科技有限公司 Medium-low temperature phosphorus-free oil removing powder for surfaces of steel parts and preparation and use methods thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830942A (en) * 1957-05-24 1958-04-15 Jr Robert H Elliott Electrocleaner for brass
JPS5039636A (en) * 1973-08-14 1975-04-11
US5104501A (en) * 1989-06-13 1992-04-14 Daicel Chemical Industries, Ltd. Electrolytic cleaning method and electrolytic cleaning solution for stamper

Also Published As

Publication number Publication date
CN113684525A (en) 2021-11-23
CN113684525B (en) 2024-05-24

Similar Documents

Publication Publication Date Title
CN101591799B (en) Electrolytic polishing solution of magnesium alloy and magnesium alloy surface polishing processing method
CN110129872B (en) Polishing solution for cobalt-chromium metal electrolyte plasma polishing
CN103805970B (en) Steel bead wire plating front surface treatment process
CN101593823A (en) The preprocess method of a kind of lead acid accumulator copper core electrode post copper mold insert Bao Zhuqian
WO2007031779A1 (en) Improvements in and relating to cleaning of articles, especially textiles
NL2031102B1 (en) Environment-friendly electric cleaning degreaser for shield tunneling machine cutter head and degreasing method thereof
CN108930055A (en) Metal-surface nano Coating Processes
CN102719815A (en) Productive technology of environment-friendly type solid welding wires without copper facing
CN1781652A (en) Copper-free wires for gas-shielded arc welding
US9551085B2 (en) Electrochemical polishing solution, process for electrochemically polishing graphite gate electrode and graphite gate electrode
CN102191494B (en) Treatment solution for reducing oxidation films on surface of copper and copper alloys and treatment method thereof
CN103834983A (en) Environmental protection energy saving liquid phase plasma cleaning method of metal section bar
JP2017160484A (en) Agent for removing weldment burnt deposit for electrolytic polishing and electrolytic polishing method
CN103668132B (en) A kind of activated solution and the application in electroless nickel plating on magnesium thereof
CN101031672A (en) Surface treatment method
CN107400915A (en) Have porous subsurface stratum and the aluminium alloy anode oxide film of wearing coat and preparation method thereof concurrently
CN109778298A (en) A kind of electrolytic polishing liquid, burnishing device and polishing method
CN104947168A (en) Repair method of zirconium base film on surface of magnesium alloy
CN113649598A (en) SLM (selective laser melting) -based surface cleaning treatment method for formed metal and alloy sample thereof
CN107723721A (en) A kind of method of aluminum alloy chemically oil removing
KR930001521B1 (en) Electrolytic cleaning composition for removing lubricant of a stainless steel
CN103757646A (en) Acid pickling inhibitor in steel wire acid pickling solution
CN205571636U (en) Axle type surface machining device
CN110923719A (en) Surface polishing process of aluminum alloy
JP2008169266A (en) Composition for pretreatment for laundry