CN104610607A - Whole mould pressing vulcanization technology for cathode insulating strip and insulating layer - Google Patents

Whole mould pressing vulcanization technology for cathode insulating strip and insulating layer Download PDF

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Publication number
CN104610607A
CN104610607A CN201510092219.3A CN201510092219A CN104610607A CN 104610607 A CN104610607 A CN 104610607A CN 201510092219 A CN201510092219 A CN 201510092219A CN 104610607 A CN104610607 A CN 104610607A
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liquid level
negative plate
insulation layer
cathode plate
mouth
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CN201510092219.3A
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CN104610607B (en
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单东成
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Hunan Dazhidu New Materials Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02Copolymers with acrylonitrile
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/52Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/58Measuring, controlling or regulating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02Organic and inorganic ingredients
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08L23/20Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C08L23/22Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02Electrodes; Connections thereof
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2312/00Crosslinking

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a production technology for whole mould pressing vulcanization of an insulating strip, a liquid level insulating layer and a peeling hole of a cathode plate of an electrolyzer in the smelting industry. According to the production technology disclosed by the invention, materials for producing the insulating strip, the liquid level insulating layer and the peeling hole polymers which are capable of resisting corrosion and generating chemical crosslinking per se to generate a reticular structure, and chemical crosslinking can also be carried out on the polymers and chemlock which coats a cathode plate in advance, a chemical bond firmly combines the cathode plate, the insulating strip, the liquid level insulating layer and the peeling hole to form an indivisible whole body. The production technology has the key points that the production technology of the insulating strip, the liquid level insulating layer and the peeling hole is a processing method for whole mould pressing vulcanization in a vulcanization machine, and thus the situation that formerly, a liner molecular polymer (plastic) is coldly bonded on the cathode plate, and a gap is inevitably formed by virtue of simple physical binding to lead an acid liquid to leak into the gap, so that abscission and fracture of the bonded polymer is caused by virtue of corrosion of the cathode plate, and maintenance with a great deal of human and material resources are needed to be consumed is changed. The cathode plate produced by the production technology is not needed to be maintained basically and is capable of saving a great deal of human and material resources and greatly prolonging the service life of the cathode plate.

Description

The integral die sulfurization technology of negative plate insulation bar, insulation layer
Technical field
The present invention relates to the production technology of the negative plate insulation bar of the metals such as smelting industry electrolytic zinc, copper, lead, nickel, liquid level insulation layer, the sulfuration of stripping mouth integral die.
Background technology
On existing negative plate, insulation strip, liquid level insulation layer, stripping mouth are all adopt cold bonding, the methods such as injection, its insulation strip and insulation layer are also all plastics (as PP, PE etc.) extrusion mouldings adopting linear structure, then on negative plate and insulation strip sticky surface adhesive for spraying or resin, more manual they to be bonded together.Because manual control factor is large, unavoidable bonding loosely, there is gap, acid solution easily penetrates on negative plate corrodes, add that this bounding force is single physical adhesion, tackiness agent is made to loosen inefficacy along with temperature variation is expanded with heat and contract with cold, cause insulation strip, insulation layer comes off, the easy thermal ageing of the insulation strip of this linear structure in addition, make the easy crisp easy fracture of insulation strip, negative plate cannot work, by insulation strip and adhesive method ubiquity the problems referred to above by hand that this plastics are raw material production, want at substantial manpower and materials to keep in repair insulation strip in smeltery, insulation layer, a large amount of negative plates causes scrapping because of periphery seriously corroded.
Summary of the invention:
The object of this invention is to provide a kind of corrosion-resistant, heat-proof aging and the polymkeric substance of chemical interlinkage generating network structure can occur, and provide a kind of the processing method of polymkeric substance and the sulfuration of negative plate integral die, technic index control by equipment instrument thus ensures insulation strip, liquid level insulation layer, stripping mouth and negative plate seamless combination, being different from the past current simple physical cold bonding method.
Chemical interlinkage occurs energy of the present invention generate firm cancellated polymkeric substance also ability strong acid burn into heat-proof aging itself.These polymkeric substance have butadiene acrylonitrile rubber, terpolymer EP rubber, butyl rubber, chlorosulfonated polyethylene etc., in order to increase corrosion resistance nature also select plastics as polyvinyl chloride, polypropylene, polyethylene etc. with it and use.General ratio is rubber is 70 parts (mass ratioes), and plastics are 30 parts (mass ratioes), then add crosslink agent DCP etc., make polymkeric substance work in-process.The present invention the most important thing is: the insulation strip on negative plate, liquid level insulation layer, stripping mouth are made with the sulfuration of negative plate integral die.This production method Technology is first according to structure design and the process for processing mould of negative plate, guarantees insulation strip, liquid level insulation layer, the geometrical shape peeling off mouth and size conforms service requirements.Mould is put into vulcanizer and is heated to specified temperature, just above-mentioned stand-by polymkeric substance work in-process can be cut out after bar is weighed and successively put into die cavity with negative plate, press vulcanization makes polymkeric substance generation chemically crosslinked form reticulated structure, and the polar group generation chemically crosslinked of the Kai Muluoke (Chemlok) that polymkeric substance and negative plate applys before sulfuration, form firm chemical chain combination.This chemical chain is more much bigger than simple physical bond intensity, and stripping strength reaches 4.5Mpa.
Technological process of the present invention is such: the roller temperature first controlling mixing facilities can not, more than 60 DEG C, make butadiene acrylonitrile rubber plastify, and then is warming up to 120 DEG C, drop into polyvinyl chloride again, make it abundant mixing, then add strengthening agent, anti-aging agent and linking agent etc., it is stand-by that last slice cuts desired size.Vulcanizer temperature controls at 155 DEG C ± 5 DEG C, first anticathode plate carries out physics and chemistry process, coating Kai Muluoke (Chemlok), put into again in die cavity and heat, reach after mould temperature until temperature, put into the rubber and plastic polymkeric substance cut again, be forced into 9Mpa pressure, curing time is 25 minutes just can depanning.Insulation strip on negative plate, liquid level insulation layer, stripping mouth just machine simultaneously.
Processing condition of the present invention are:
Mixing roll roller temperature built in 60 DEG C, is warming up to 120 DEG C in softened rubber time control when adding plastics, fully after mixing, roller temperature control at 60 DEG C, then adds strengthening agent carbon black, anti-aging agent, promoting agent, vulcanizing agent etc.The processing condition of integral die sulfidization molding are vulcanizer plate temperatures (die temperature is same) is 155 DEG C ± 5 DEG C, and vulcanizer pressure is 9Mpa.Sulfurizing time (forming the firm reticulated structure time) is 25 minutes.In accordance with technological process of the present invention and processing condition and proportioning raw materials, the insulation strip on the negative plate of integral die sulfuration, liquid level insulation layer, peel off mouth.Its every physical and mechanical properties is as follows: 1, be that in the ageing oven of 120 DEG C, 72 hours aging coefficients are 0.96 in temperature.2, being immersed in the sulfuric acid of 75% 72 hours weight loss at 40 DEG C of temperature is 0.3%.3, be 4.5Mpa with the stripping strength of metallic cathode plate.
Specific embodiments:
Enforcement ratio: butadiene acrylonitrile rubber 70 (mass parts) polyvinyl chloride 30 promoting agent (zinc oxide) 5 softening agent (stearic acid) 2 strengthening agent (spray carbon black) 60 anti-aging agent RD 2, will above-mentioned raw materials weigh after to add successively and evenly mixing, cut slivering, then put in mould with negative plate and in vulcanizer, carry out overall sulfuration in the lump.The stripping strength of polymkeric substance and metallic cathode plate reaches 4.5Mpa, forms firmly not strippable entirety.
Following table is example 2-8, lists proportioning raw materials, processing condition and physical and mechanical properties index:
Insulation strip on the negative plate that above-mentioned technological process produces, liquid level insulation layer, peel off mouth heat-proof aging, corrosion-resistant, with negative plate seamless combination, acid solution cannot leak into negative plate insulation region and not be corroded.Therefore, the insulation strip of negative plate, liquid level insulation layer, stripping mouth are scrapped whole process to negative plate and are not substantially needed repairing from use, have saved a large amount of manpower and materials, meanwhile, have also drastically increased the work-ing life of negative plate.

Claims (4)

1. the insulation strip of negative plate, liquid level insulation layer, peel off the production technology of mouth, it is characterized in that selecting the polymkeric substance of chemically crosslinked and the processing method of integral die sulfuration can occur.
A. corrosion-resistant, resistant to heat aging rubber or proportion with plastics, then add other auxiliary agents, in mill blending operation insulation strip, liquid level insulation layer, peel off the work in-process of mouth.
B. insulation strip, liquid level insulation layer, peel off model that the work in-process of mouth put into vulcanizer and chemically crosslinked self can occur under certain temperature, pressure generate reticulated structure, also can with the tackiness agent generation chemically crosslinked such as the Kai Muluoke (Chemlok) that adheres on negative plate.
C. the insulation strip on negative plate, liquid level insulation layer, stripping mouth are manufactured by integral die sulfuration, and die cavity heating and pressurizing put into by negative plate together with polymkeric substance, in vulcanizer, chemically crosslinked occurs.
D. the processing condition of described negative plate and polyalcohol integral molded vulcanization are curing temperatures is 145 DEG C to 160 DEG C, and dull and stereotyped pressure is 9Mpa, and curing time is 10 to 25 minutes.
2. according to claim 1, the shaping processing method of integral die first the surface of conjugated polymer will carry out chemical treatment on negative plate, and coating Kai Muluoke (Chemlok) tackiness agent, puts into die cavity again after dry aftersensation is tack-free.
3. die design and processing are carried out according to negative plate whole geometry size and technical requirements.The negative plate insulation bar that integral die sulfuration machines, liquid level insulation layer, peel off mouth and negative plate junction without any gap, in conjunction with firm.
4. the insulation strip on negative plate according to claim 3, liquid level insulation layer, stripping mouth combine firmly advantage, and its main physical properties is as follows:
(1) stripping strength of insulation strip, liquid level insulation layer, stripping mouth and negative plate combining site is greater than 4.5Mpa.
(2) the heat-proof aging coefficient of insulation strip, liquid level insulation layer, stripping mouth is 0.96 (120 DEG C of temperature, the brute force recorded in 72 hours and quality ratio before).
(3) 75% sulphuric acid solns, are immersion 72 hours 40 DEG C of temperature, weight rate is 03%.
CN201510092219.3A 2015-03-02 2015-03-02 The integral die sulfurization technology of negative plate insulation bar, insulating layer Active CN104610607B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584706A (en) * 2017-06-05 2018-01-16 安徽宏远机械制造有限公司 A kind of high accurancy and precision stamping die intelligent manufacturing system
CN109208037A (en) * 2018-10-15 2019-01-15 昆明联亚电极材料制造有限公司 A kind of dedicated cathode-anode plate New insulated anti-corrosion vulcanization plant of electrolytic zinc

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201224766Y (en) * 2008-07-08 2009-04-22 贵州省冶金化工研究所 New energy-saving type cathode plate for electrolyzing zinc
CN201495302U (en) * 2009-06-26 2010-06-02 柳州市向群塑胶五金厂 Electrolytic zinc negative plate
CN201495301U (en) * 2009-06-26 2010-06-02 柳州市向群塑胶五金厂 Self-adhering electrolytic zinc negative plate insulating strip
CN103603016A (en) * 2013-12-02 2014-02-26 舒胜春 Insulated edge integrated with cathode plate and manufacturing method of insulated edge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201224766Y (en) * 2008-07-08 2009-04-22 贵州省冶金化工研究所 New energy-saving type cathode plate for electrolyzing zinc
CN201495302U (en) * 2009-06-26 2010-06-02 柳州市向群塑胶五金厂 Electrolytic zinc negative plate
CN201495301U (en) * 2009-06-26 2010-06-02 柳州市向群塑胶五金厂 Self-adhering electrolytic zinc negative plate insulating strip
CN103603016A (en) * 2013-12-02 2014-02-26 舒胜春 Insulated edge integrated with cathode plate and manufacturing method of insulated edge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107584706A (en) * 2017-06-05 2018-01-16 安徽宏远机械制造有限公司 A kind of high accurancy and precision stamping die intelligent manufacturing system
CN109208037A (en) * 2018-10-15 2019-01-15 昆明联亚电极材料制造有限公司 A kind of dedicated cathode-anode plate New insulated anti-corrosion vulcanization plant of electrolytic zinc

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Effective date of registration: 20190430

Address after: 410000 Pingyang Village Group II, Lituoxiang, Yuhua District, Changsha City, Hunan Province

Patentee after: Changsha national hair Rubber & Plastics Co.,Ltd.

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Address before: 410000 Pingyang Village Group II, Lituoxiang, Yuhua District, Changsha City, Hunan Province

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