CN103469318B - A kind of calcining method for cleaning of spinneret - Google Patents

A kind of calcining method for cleaning of spinneret Download PDF

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Publication number
CN103469318B
CN103469318B CN201310395053.3A CN201310395053A CN103469318B CN 103469318 B CN103469318 B CN 103469318B CN 201310395053 A CN201310395053 A CN 201310395053A CN 103469318 B CN103469318 B CN 103469318B
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China
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spinneret
cleaning
wire
calcining
muffle furnace
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CN201310395053.3A
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CN103469318A (en
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严加军
袁建球
严正海
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YANCHENG HUAPU TEXTILE MACHINERY Co Ltd
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YANCHENG HUAPU TEXTILE MACHINERY Co Ltd
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Abstract

The present invention relates to a kind of calcining method for cleaning of spinneret, spinneret is placed in Muffle furnace and calcined, cathode wire and positive wire are provided with the burner hearth of the Muffle furnace, the cathode wire and the positive wire pass through the body of heater and insulated heat of the Muffle furnace, the cathode wire connects negative electrode, the positive wire is connected to the negative pole of dc source, and the positive pole of dc source is placed in electrolytic cell by wire jointed anode, the negative electrode and the anode;The spinneret both sides connect the cathode wire and the positive wire respectively.In the presence of external power supply, oxidation or sulfidation corrosion of the spinneret under high-temperature calcination is greatly inhibited to cause while effective calcining cleaning, the material and structural integrity of spinneret are ensure that, with the stability and high efficiency for extending the service life of object and body of heater and ensure that spinning work.

Description

A kind of calcining method for cleaning of spinneret
Technical field
The present invention relates to a kind of calcining method for cleaning of spinneret, and in particular to it is a kind of prevent spinneret corrode calcining it is clear Reason method.
Background technology
At present, need to carry out cleaning process to spinneret during the R&D and production of chemical fibre, it is necessary to by spinneret Progress high-temperature calcination cleaning in Muffle furnace is placed in, temperature is at 300~600 DEG C.
Because spinneret is manufactured by steel alloy material, if containing the element that the oxidisability such as aerobic, sulphur are high in polymer raw material, Electronics then can be lost by metal under the high temperature conditions, chemical valence rise, while oxygen or sulphur obtain electronics, in the electricity of the system of holding Property, metal oxide or sulfide are formd, is called the oxidation or vulcanization of metal.If caused in Muffle furnace calcining scale removal process The oxidation or sulfidation corrosion of spinneret material, can cause shortcoming to have:
First, spinneret material is corroded, and the structure of material produces defect, and material becomes fragile, size distortion, under the influence of time production Process;
2nd, the accumulation of metal erosion thing, which covers, needs the chemicals for being calcined cleaning, causes cleaning unnet, influences to give birth to Production;
3rd, metal erosion thing can be accumulated in large quantities in Muffle furnace, influence the thermal efficiency, cause service life of equipment brief.
The conventional measure for preventing object high temperature corrosion for clearance has:
First, control corrosion rate environment, that is, vacuum calcining is carried out so that oxysulfide can be in time as caused by calcination process Exclude furnace chamber, to reduce compound and isoelectric membrane for clearance, though this method can reduce the extent of corrosion of material, not from The corrosion of material is fundamentally prevented;
2nd, resistant material is selected, but the selectivity of material is smaller, if because sulfidation corrosion occurs for metal, generation Sulfide has special property, unstable, volumetric ratio is big, and film is easily peelable, lattice defect is more, fusing point and low boiling point, easily generation The easily generation low melting point eutectic, therefore resistance to height such as the such sulfide of various sulfide and oxide, sulfate and metal for not fixing a price Warm vulcanizing material is few;
3rd, effective anticorrosive coat is selected, i.e., anti-corrosion treatment, conventional guard technology are carried out to object surface for clearance Have and electric arc spraying, supersonic spray coating etc. are carried out using hot coatings such as NiCr, FeCr and Inconel625 to material surface, though can Play certain protective action to material, but hot coating all contain Cr, the fragility of material can be caused to become big, it is difficult to when long Between carry out high-pressure spinning, maintenance and maintenance cost are higher.
The content of the invention
The purpose of the present invention is the defects of this is to prior art, there is provided a kind of calcining method for cleaning of spinneret, in spinneret Plate external current protection device, enough electronics are provided for spinneret, greatly reduce the oxidation and vulcanization of spinneret, overcome existing skill In art in Muffle furnace high-temperature calcination scale removal process caused oxide and sulfide to caused by spinneret corrosion.
A kind of calcining method for cleaning of spinneret of the present invention:Spinneret is placed in Muffle furnace and calcined, the Muffle furnace Burner hearth in be provided with cathode wire and positive wire, the cathode wire and the positive wire pass through the stove of the Muffle furnace Body and insulated heat, the cathode wire connect negative electrode, and the positive wire is connected to the negative pole of dc source, and dc source is just Pole is placed in electrolytic cell by wire jointed anode, the negative electrode and the anode;The spinneret both sides connect described respectively Cathode wire and the positive wire.
A kind of calcining method for cleaning of spinneret as described above, the calcining heat of the calcining cleaning is 450~550 ℃;The calcination time of the calcining cleaning is 10~20h.Cleaned out in order to which spinneret can be calcined sufficiently.
A kind of calcining method for cleaning of spinneret as described above, the dc source is dry cell or battery.It is described The both end voltage of dc source is 1.5~3V.Dc source requires that power-supply device is safe and reliable;Supply voltage continuously adjustabe, energy It is enough to adapt to local working environment(Temperature, humidity), for power with being matched by protection structures, Operation and Maintenance is simple, moreover it is possible to permanent Electric current exports.User can be adjusted as needed.Stable electronics is to provide for using dc source to export, and is made on spinneret Remain a number of electric charge;When the simple substance or compound of oxygen or element sulphur are aoxidized or vulcanized to spinneret, spray Metallic element on filament plate can lose electronics because occurring oxidation reaction;Now, exported on spinneret by dc source and band Electric charge can rapidly supplement lost electronics, terminate oxidation reaction, do not occur even, the corrosion that spinneret is subject to is big It is big to decline, it is protected.
A kind of calcining method for cleaning of spinneret as described above, the electrolyte of the electrolytic cell is solution of zinc sulfate;Institute The material for stating negative electrode is graphite;The material of the anode is high purity zinc;The material of the cathode wire and the positive wire is all For copper.Copper conductor stability and corrosion resistance are relatively good.Anode is sacrificial anode, is to be able to have in time using active metal The electronics lost in the supplementary circuitry of effect by the oxidation reaction on spinneret, ensure the stabilization of circuit electric charge, it is had preferably Anticorrosion ability.
A kind of calcining method for cleaning of spinneret as described above, what negative electrode, anode, dc source and spinneret were formed Series resistor and switch on loop.Closed-loop path can be such that electric charge is moved in loop, beneficial to the supplement of electric charge.
A kind of calcining method for cleaning of spinneret as described above, the resistance are slide rheostat, and its Standard resistance range is 0 ~200 Ω;And the loop concatenates galvanometer.Slide rheostat and galvanometer make the electric current in circuit quantitative adjustable, with full Required protective current during sufficient spinneret calcining.
A kind of calcining method for cleaning of spinneret as described above, the cathode wire is in the burner hearth of the Muffle furnace Termination sets clamping device, and termination of the positive wire in the burner hearth of the Muffle furnace sets clamping device.Clamping device It is to fix spinneret, and spinneret is connected into circuit, forms closed-loop path.
A kind of calcining method for cleaning of spinneret as described above, the clamping device is metal clip, and its material is copper.Choosing It is because its less expensive, and to compare torpescence, oxygen and sulphur rotten to it for chemical property by the use of copper as the material of clamping device Erosion is smaller;Even if use for a long time is necessarily corroded and needs to change, also can conveniently obtain, it is cost-effective.
A kind of calcining method for cleaning of spinneret as described above, the insulated heat wrap up described the moon using ceramic material Polar conductor and the positive wire;Ceramic material is high-temperature insulation insulated heat material, is wrapped in the cathode wire It outside the positive wire, can effectively play a part of insulated heat, prevent wire from being contacted with other conductors and causing leakage Electricity, be advantageous to the stability of holding circuit.
A kind of calcining method for cleaning of spinneret as described above, the burner hearth of the Muffle furnace is interior to set an objective table, institute State objective table and use refractory ceramics plate, the objective table insulation;The spinneret is placed on the objective table.Refractory ceramics Plate can keep original property under the calcining heat of spinneret, and be insulated with spinneret, do not interfere with spinneret place and return The movement of the electric charge on road.
When using the calcining method for cleaning calcining cleaning spinneret of the present invention, need that spinneret first is cleaned out into two pieces totally Region, clamping device is clipped in clean region fixed, when connecting in the loop so as to workpiece for clearance, can form and lead Electric pathway;Then spinneret is placed in the article carrying piece in burner hearth, fixed using clamping device, fixing point is in two pieces cleaned out In clean region, dc source parameter is set, closure switch, when closed-loop path forms regular path, adjusts slide rheostat. Then, Muffle furnace can be carried out normally calcining work.Muffle furnace parameters are set, start the calcining of workpiece for clearance.
Beneficial effect:
A kind of calcining method for cleaning of spinneret of the present invention compared with prior art, the advantage is that:Present invention utilizes Simple external power supply protection technique, effectively inhibit Muffle furnace metal erosion caused by when high temperature clears up spinneret so that While effective calcining cleaning, the structural integrity of spinneret material is ensure that, to extend the service life of object and ensure that The stability and high efficiency of spinning work.
Brief description of the drawings
Fig. 1 be the present invention calcining method for cleaning required for Muffle furnace general structure schematic diagram.
Fig. 2 be the present invention calcining method for cleaning required for Muffle furnace cross-sectional view.
Fig. 3 be the present invention calcining method for cleaning required for Muffle furnace theory structure schematic diagram.
In figure, 1, Muffle furnace temperature-controlled portion;2nd, Muffle furnace oven body part;3rd, positive wire;4th, external power supply control section; 401st, dc source;402nd, ammeter;403rd, switch;404th, slide rheostat;405th, anode;406th, negative electrode;407th, electrolytic cell; 5th, cathode wire;6th, clamping device;7th, objective table;8th, spinneret.
Embodiment
The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair Bright rather than limitation the scope of the present invention.In addition, it is to be understood that after the content of the invention lectured has been read, art technology Personnel can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited Fixed scope.
A kind of calcining method for cleaning of spinneret of the present invention:As shown in figure 3, by spinneret(8)It is placed in Muffle furnace and forges Burn, cathode wire is provided with the burner hearth of the Muffle furnace(5)And positive wire(3), the cathode wire(5)With the anode Wire(3)Through the body of heater of the Muffle furnace(2)And insulated heat, the cathode wire connect negative electrode(406), the anode leads Line is connected to the negative pole of dc source, and the positive pole of dc source passes through wire jointed anode(405), the negative electrode and the anode are put In electrolytic cell;The spinneret both sides connect the cathode wire and the positive wire respectively.
A kind of calcining method for cleaning of spinneret as described above, the calcining heat of the calcining cleaning is 450~550 ℃;The calcination time of the calcining cleaning is 10~20h.Cleaned out in order to which spinneret can be calcined sufficiently.
A kind of calcining method for cleaning of spinneret as described above, the dc source(401)For dry cell or battery. The both end voltage of the dc source is 1.5~3V.Dc source requires that power-supply device is safe and reliable;Supply voltage continuously may be used Adjust, can adapt to the working environment of locality(Temperature, humidity), for power with being matched by protection structures, Operation and Maintenance is simple, also Can Constant current output.User can be adjusted as needed.Stable electronics is to provide for using dc source to export, and makes spinneret A number of electric charge is remained on plate;When the simple substance or compound of oxygen or element sulphur are aoxidized or vulcanized to spinneret When, the metallic element on spinneret can lose electronics because occurring oxidation reaction;Now, exported on spinneret by dc source And the electric charge of band can rapidly supplement lost electronics, oxidation reaction is terminated, do not occurred even, the corruption that spinneret is subject to Erosion is greatly reduced, and it is protected.
A kind of calcining method for cleaning of spinneret as described above, the electrolytic cell(407)Electrolyte for zinc sulfate it is molten Liquid;The negative electrode(406)Material be graphite;The anode(405)Material be high purity zinc;The cathode wire and the sun The material of polar conductor is all copper.Copper conductor stability and corrosion resistance are relatively good.Anode is sacrificial anode, is using active metal In order to the electronics lost in timely and effectively supplementary circuitry by the oxidation reaction on spinneret, ensure the steady of circuit electric charge It is fixed, it is had preferable anticorrosion ability.
A kind of calcining method for cleaning of spinneret as described above, what negative electrode, anode, dc source and spinneret were formed Series resistor and switch on loop(403), form external power supply control section(4).Closed-loop path can be such that electric charge is moved in loop It is dynamic, beneficial to the supplement of electric charge.
A kind of calcining method for cleaning of spinneret as described above, the resistance is slide rheostat(404), its resistance model Enclose for 0~200 Ω;And the loop concatenates galvanometer(402).Slide rheostat and galvanometer quantify the electric current in circuit It is adjustable, required protective current during meeting spinneret calcining.
The calcining method for cleaning of a kind of spinneret as described above, as shown in Fig. 2 the cathode wire is in the Muffle furnace Burner hearth in termination set clamping device(6), termination of the positive wire in the burner hearth of the Muffle furnace sets clamping Device(6).Clamping device is to fix spinneret, and spinneret is connected into circuit, forms closed-loop path.
A kind of calcining method for cleaning of spinneret as described above, the clamping device is metal clip(6), its material is Copper.It is because its less expensive, and chemical property compares torpescence, oxygen and sulphur from material of the copper as clamping device It is corroded smaller;Even if use for a long time is necessarily corroded and needs to change, also can conveniently obtain, it is cost-effective.
A kind of calcining method for cleaning of spinneret as described above, the insulated heat wrap up described the moon using ceramic material Polar conductor and the positive wire;Ceramic material is high-temperature insulation insulated heat material, is wrapped in the cathode wire It outside the positive wire, can effectively play a part of insulated heat, prevent wire from being contacted with other conductors and causing leakage Electricity, be advantageous to the stability of holding circuit.
A kind of calcining method for cleaning of spinneret as described above, the burner hearth of the Muffle furnace is interior to set an objective table(7), The objective table uses refractory ceramics plate, the objective table insulation;The spinneret is placed on the objective table.High temperature resistant is made pottery Porcelain plate can keep original property under the calcining heat of spinneret, and be insulated with spinneret, not interfere with spinneret place The movement of the electric charge in loop.
Embodiment 1
Spinneret for clearance is cleaned out into two pieces of clean regions, the load then placed it in the burner hearth of Muffle furnace On thing platform, it is connected with the cathode wire in Muffle furnace and anode by copper metal clip, the folder o'clock of metal clip is at two pieces In clean region, from two section dry cells, then supply voltage be 3V, closure switch, after electric power loop path, regulation slip variable resistance Device, it is 30mA to make ammeter registration;Then, as shown in figure 1, to Muffle furnace temperature-controlled portion(1)Set, Muffle furnace is set Calcining heat is 550 DEG C, calcination time 20h, carries out calcining cleaning.
The corrosion of the spinneret after calcining cleaning greatly reduces in this way, does not influence to reuse.
Embodiment 2
Spinneret for clearance is cleaned out into two pieces of clean regions, the load then placed it in the burner hearth of Muffle furnace On thing platform, it is connected with the cathode wire in Muffle furnace and anode by copper metal clip, the folder o'clock of metal clip is at two pieces In clean region, from a section dry cell, then supply voltage be 1.5V, closure switch, and after electric power loop path, change is slided in regulation Device is hindered, it is 10mA to make ammeter registration;Then, as shown in figure 1, to Muffle furnace temperature-controlled portion(1)Set, Muffle furnace is set Calcining heat be 450 DEG C, calcination time 10h, carry out calcining cleaning.
The corrosion of the spinneret after calcining cleaning greatly reduces in this way, does not influence to reuse.
Embodiment 3
Spinneret for clearance is cleaned out into two pieces of clean regions, the load then placed it in the burner hearth of Muffle furnace On thing platform, it is connected with the cathode wire in Muffle furnace and anode by copper metal clip, the folder o'clock of metal clip is at two pieces In clean region, from a section battery, then supply voltage be 2V, closure switch, after electric power loop path, regulation slip variable resistance Device, it is 20mA to make ammeter registration;Then, as shown in figure 1, to Muffle furnace temperature-controlled portion(1)Set, Muffle furnace is set Calcining heat is 550 DEG C, calcination time 15h, carries out calcining cleaning.
The corrosion of the spinneret after calcining cleaning greatly reduces in this way, does not influence to reuse.

Claims (7)

1. a kind of calcining method for cleaning of spinneret, spinneret is placed in Muffle furnace and calcined, it is characterized in that:The Muffle furnace Cathode wire and positive wire are provided with burner hearth, the cathode wire and the positive wire pass through the body of heater of the Muffle furnace And insulated heat, the cathode wire connect negative electrode, the positive wire is connected to the negative pole of dc source, the positive pole of dc source By wire jointed anode, the negative electrode and the anode are placed in electrolytic cell;The spinneret both sides connect described the moon respectively Polar conductor and the positive wire;The electrolyte of the electrolytic cell is solution of zinc sulfate;The material of the negative electrode is graphite;It is described The material of anode is high purity zinc;The material of the cathode wire and the positive wire is all copper;The calcining of the calcining cleaning Temperature is 450~550 DEG C;The calcination time of the calcining cleaning is 10~20h;The dc source is dry cell or electric power storage Pond, the both end voltage of the dc source is 1.5~3V.
2. the calcining method for cleaning of a kind of spinneret according to claim 1, it is characterised in that negative electrode, anode, direct current Series resistor and switch on the loop that source and spinneret are formed.
3. the calcining method for cleaning of a kind of spinneret according to claim 2, it is characterised in that the resistance becomes to slide Device is hindered, its Standard resistance range is 0~200 Ω;And the loop concatenates galvanometer.
4. the calcining method for cleaning of a kind of spinneret according to claim 1, it is characterised in that the cathode wire is in institute The termination stated in the burner hearth of Muffle furnace sets the first clamping device, termination of the positive wire in the burner hearth of the Muffle furnace Second clamping device is set;First clamping device and the second clamping device clamping spinneret.
A kind of 5. calcining method for cleaning of spinneret according to claim 4, it is characterised in that first clamping device It is metal clip with the second clamping device, its material is copper.
6. the calcining method for cleaning of a kind of spinneret according to claim 1, it is characterised in that the insulated heat uses Ceramic material wraps up the cathode wire and the positive wire.
A kind of 7. calcining method for cleaning of spinneret according to claim 1, it is characterised in that the burner hearth of the Muffle furnace One objective table of interior setting, the objective table use refractory ceramics plate, the objective table insulation;The spinneret is placed in the load On thing platform.
CN201310395053.3A 2013-09-03 2013-09-03 A kind of calcining method for cleaning of spinneret Expired - Fee Related CN103469318B (en)

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* Cited by examiner, † Cited by third party
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CN105734692B (en) * 2016-05-06 2017-11-14 江苏奥神新材料股份有限公司 The electrochemical cleaning method of polyimides spinneret is spun for handling dry method
CN110280534A (en) * 2019-06-27 2019-09-27 云谷(固安)科技有限公司 A kind of cleaning systems of mask plate and the clean method of mask plate
CN112176433A (en) * 2020-11-09 2021-01-05 天长市大发化纤有限公司 Calcination mechanism for spinneret capillary hole dredging

Citations (5)

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Publication number Priority date Publication date Assignee Title
CN2038224U (en) * 1988-10-08 1989-05-24 太原无线电四厂 Vacuum cleaning furnace
CN201151757Y (en) * 2008-01-18 2008-11-19 宁波大发化纤有限公司 Fixing and cleaning device of ;nozzle plate
CN101805930A (en) * 2010-04-28 2010-08-18 太原理工大学 Method for cleaning polyphenylene sulfide melt spinning spinneret
CN202705579U (en) * 2012-05-23 2013-01-30 桐昆集团浙江恒通化纤有限公司 Vacuum calciner
CN202849601U (en) * 2012-09-04 2013-04-03 江苏德赛化纤有限公司 Vacuum furnace multi-spinneret-plate calcination frame in melt spinning equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2038224U (en) * 1988-10-08 1989-05-24 太原无线电四厂 Vacuum cleaning furnace
CN201151757Y (en) * 2008-01-18 2008-11-19 宁波大发化纤有限公司 Fixing and cleaning device of ;nozzle plate
CN101805930A (en) * 2010-04-28 2010-08-18 太原理工大学 Method for cleaning polyphenylene sulfide melt spinning spinneret
CN202705579U (en) * 2012-05-23 2013-01-30 桐昆集团浙江恒通化纤有限公司 Vacuum calciner
CN202849601U (en) * 2012-09-04 2013-04-03 江苏德赛化纤有限公司 Vacuum furnace multi-spinneret-plate calcination frame in melt spinning equipment

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