CN103464936A - Surfacing electrode manufacturing method - Google Patents

Surfacing electrode manufacturing method Download PDF

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Publication number
CN103464936A
CN103464936A CN 201310459354 CN201310459354A CN103464936A CN 103464936 A CN103464936 A CN 103464936A CN 201310459354 CN201310459354 CN 201310459354 CN 201310459354 A CN201310459354 A CN 201310459354A CN 103464936 A CN103464936 A CN 103464936A
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China
Prior art keywords
waterglass
carry out
coating
electrode
afterwards
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Withdrawn
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CN 201310459354
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Chinese (zh)
Inventor
于占军
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Heilongjiang Hongyu Power Station Equipment Co Ltd
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Heilongjiang Hongyu Power Station Equipment Co Ltd
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Priority to CN 201310459354 priority Critical patent/CN103464936A/en
Publication of CN103464936A publication Critical patent/CN103464936A/en
Withdrawn legal-status Critical Current

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Abstract

The invention discloses a surfacing electrode manufacturing method. Electrodes have complex models and varieties, various standards and sizes and strict quality demands, and have the defects of long production period and unsuitability for continuous operation, so right selecting of raw materials as well as a corresponding manufacturing process, corresponding equipment and a strict examination test means are needed for producing a superior electrode. The surfacing electrode manufacturing method comprises the steps of firstly performing derusting, drawing, straightening and cutting on a core wire, then preparing an electrode covering raw materials, preparing sodium silicate, preparing an electrode coating, press-coating and molding the electrode, drying and packing the electrode and detecting the finished electrode product, wherein the sodium silicate is prepared by reacting white carbon black and caustic potash with water and heating by steam, the electrode coating step is subjected to powder preparing and mixing, and the press-coating and molding step is subjected to powder feeding, powder coating, head grinding, tail grinding and printing. The surfacing electrode manufacturing method is used for surfacing.

Description

The surfacing welding manufacture method
technical field:
the present invention relates to a kind of surfacing welding manufacture method.
background technology:
the surfacing welding manufacturing process is exactly that designing requirement by welding rod prescription prepares coating and core wire, and coating is applied on core wire, makes it to reach shape, the size of regulation.Yet welding rod kind model complexity, specification is many, quality requirement is tight, it is long to have the production cycle on manufacturing, be not suitable for continuous production process, thus to produce a kind of good welding rod, except best welding rod prescription design is arranged, correct selects outside raw material, and manufacturing process, equipment and narrow examination means of testing correspondingly also must be arranged.
summary of the invention:
the purpose of this invention is to provide a kind of surfacing welding manufacture method.
above-mentioned purpose realizes by following technical scheme:
a kind of surfacing welding manufacture method, at first carry out the derusting of core wire, drawing and core vertical cut disconnected, carry out afterwards the preparation of electrode coating raw material, carry out afterwards the preparation of waterglass, carry out afterwards the preparation of electrode coating, carry out afterwards the extrusion moulding of welding rod, carry out afterwards welding rod drying and packing, carry out afterwards the check of welding rod finished product; Wherein, described waterglass is reacted with water by white carbon, caustic potash, then the reaction of logical Steam Heating makes, and described electrode coating is through joining powder and breading process, and described extrusion moulding is through wire feed, dusting, bistrique, mill tail, Printing process.
described surfacing welding manufacture method, in the preparation process of described electrode coating raw material, when the ferroalloy in electrode coating and waterglass generation chemical reaction, for the measure of avoiding foaming to take is, at first, the ferroalloy easily reacted is carried out to Passivation Treatment, and guarantee the passivation quality; The second, reduce the powder content in ferroalloy; The 3rd, under possible condition, make coating dry as far as possible; The 4th, timely extrusion, the resting period of minimizing coating; The 5th, the modulus of raising waterglass, reduce concentration; The 6th, the welding rod drying condition of improvement ventilation and humidity discharging.
described surfacing welding manufacture method, described waterglass is high concentration, low modulus potassium sodium type waterglass, the ratio of SiO2 content and alkali metal R2O content wherein, that is: M=SiO2/R2O*K, in formula, K is coefficient, sodium silicate is K=1.0323; KP1 is K=1.5666 SiO2%, and R2O is SiO in waterglass 2 determining the adhesive property of waterglass with the percetage by weight modulus of oxide.
described surfacing welding manufacture method, welding rod is 2.8 ~ 3.0 with the modulus of waterglass, the modulus of potassium-sodium water glass is 2.5 ~ 2.7 or 2.8 ~ 3.0.
described surfacing welding manufacture method, in deployed waterglass, also add the potassium permanganate that adds 0.25% ~ 0.5% by liquid soluble glass weight, after adding afterwards hot water or boiling and make it fully be dissolved into solution, then adds in waterglass.
described surfacing welding manufacture method, the operation of joining powder of described electrode coating process is that the calibration pound claims, carry out afterwards the inspection of raw and process materials, carry out afterwards material conveying, unpacked afterwards, sieved afterwards, carry out afterwards the ingredient storage conveying, weighed afterwards and joined powder, tested afterwards, carry out afterwards blanking and enter mixer.
described surfacing welding manufacture method, the bistrique of described extrusion forming process, mill tail process are to utilize special top and end grinding machine to complete welding rod bistrique, mill tail, the coating chamfering of striking end or wear into arc, expose core wire and be about the termination of 0.5mm, be convenient to striking, and the mill tail is the coating that removes the bare terminal end 15 ~ 30mm of welding rod, be convenient to clamping and conduction.
described surfacing welding manufacture method, described welding rod drying comprises and drying or low temperature drying and high temperature cure process; Described dry or the low temperature drying process to be the wet welding bar be not less than under the room temperature of 15 ℃, relative humidity is 50%~55%, through 8~18h, dries; The described high temperature process of curing is after low temperature drying is qualified, to proceed at 40~60 ℃ of temperature, through 4~8h artificial drying; The described high temperature process of curing is through low temperature, middle temperature, high temperature and is incubated certain hour, more cooling process of coming out of the stove in time below 100 ℃.
beneficial effect:
1. the present invention is in electrode coating extrusion forming process, employing be that the electrode coating prepared is applied on the core wire of having processed, make it to become the technical process of welding rod.It is the critical process during welding rod is produced, and the Yield and quality of welding rod, consumption of raw materials etc. are all played to critical effect.The method that electrode coating is shaped is a lot, as manual, twist, dip-coating, the regular production that the present invention utilizes the mechanical high-speed extruding to coat generally is extrusion method, not only production efficiency is high, speed is fast to make it, and there is coating even thickness, smooth, closely knit, stay-in-grade advantage, also can make extrusion, transmission, bistrique, mill tail, the lettering of welding rod.
2. the present invention has increased the dope layer tight ness rating in the process that forms thick dope layer, can stop like this coating to flow backward, has obtained good extrusion effect; The coating that simultaneously guarantees the head feed bin has enough elasticity and large as far as possible mobility.The coating of dope layer has that intensity is large like this, elasticity is strong and mobility is wanted little design feature; Obtain good extrusion effect, reach higher electrode coating surface quality and want.
the specific embodiment:
embodiment 1:
a kind of surfacing welding manufacture method, at first carry out the derusting of core wire, drawing and core vertical cut disconnected, carry out afterwards the preparation of electrode coating raw material, carry out afterwards the preparation of waterglass, carry out afterwards the preparation of electrode coating, carry out afterwards the extrusion moulding of welding rod, carry out afterwards welding rod drying and packing, carry out afterwards the check of welding rod finished product; Wherein, described waterglass is reacted with water by white carbon, caustic potash, then the reaction of logical Steam Heating makes, and described electrode coating is through joining powder and breading process, and described extrusion moulding is through wire feed, dusting, bistrique, mill tail, Printing process.
embodiment 2:
the described surfacing welding manufacture method of embodiment 1, in the preparation process of described electrode coating raw material, ferroalloy in electrode coating such as ferrosilicon, rare earth silicon, ferromanganese etc., during with waterglass generation chemical reaction, for the measure of avoiding foaming to take is, at first, the ferroalloy easily reacted is carried out to Passivation Treatment, and guarantee the passivation quality; The second, reduce the powder content in ferroalloy; The 3rd, under possible condition, make coating dry as far as possible; The 4th, timely extrusion, the resting period of minimizing coating; The 5th, the modulus of raising waterglass, reduce concentration, and the factory recently had selects M3.2 ~ 3.4, and the high mode of 41 ~ 44 ° of B é of concentration, low concentration of water glass have been obtained good extrusion effect and good coating cracking resistance energy is arranged; The 6th, the welding rod drying condition of improvement ventilation and humidity discharging.
embodiment 3:
the described surfacing welding manufacture method of embodiment 1, described waterglass is high concentration, low modulus potassium sodium type waterglass, the ratio of SiO2 content and alkali metal R2O content wherein, that is: M=SiO2/R2O*K, in formula, K is coefficient, sodium silicate is K=1.0323; KP1 is K=1.5666 SiO2%, and R2O is SiO in waterglass 2 determining the adhesive property of waterglass with the percetage by weight modulus of oxide.
embodiment 4:
the described surfacing welding manufacture method of embodiment 1 or 2, welding rod is 2.8 ~ 3.0 with the modulus of waterglass, the modulus of potassium-sodium water glass is 2.5 ~ 2.7 or 2.8 ~ 3.0.
embodiment 5:
the described surfacing welding manufacture method of embodiment 1 or 2, in deployed waterglass, also add the potassium permanganate that adds 0.25% ~ 0.5% by liquid soluble glass weight, after adding afterwards hot water or boiling and make it fully be dissolved into solution, then adds in waterglass.
embodiment 6:
the described surfacing welding manufacture method of embodiment 1 or 2, the operation of joining powder of described electrode coating process is that the calibration pound claims, carry out afterwards the inspection of raw and process materials, carry out afterwards material conveying, unpacked afterwards, sieved afterwards, carry out afterwards the ingredient storage conveying, weighed afterwards and joined powder, tested afterwards, carry out afterwards blanking and enter mixer.
embodiment 7:
the described surfacing welding manufacture method of embodiment 1 or 2, the bistrique of described extrusion forming process, mill tail process are to utilize special top and end grinding machine to complete welding rod bistrique, mill tail, the coating chamfering of striking end or wear into arc, expose core wire and be about the termination of 0.5mm, be convenient to striking, and the mill tail is the coating that removes the bare terminal end 15 ~ 30mm of welding rod, be convenient to clamping and conduction.
embodiment 8:
the described surfacing welding manufacture method of embodiment 1 or 2, described welding rod drying comprises and drying or low temperature drying and high temperature cure process; Described dry or the low temperature drying process to be the wet welding bar be not less than under the room temperature of 15 ℃, relative humidity is 50%~55%, through 8~18h, dries; The described high temperature process of curing is after low temperature drying is qualified, to proceed at 40~60 ℃ of temperature, through 4~8h artificial drying; The described high temperature process of curing is through low temperature, middle temperature, high temperature and is incubated certain hour, more cooling process of coming out of the stove in time below 100 ℃.

Claims (8)

1. a surfacing welding manufacture method, it is characterized in that: it is disconnected at first to carry out the derusting of core wire, drawing and core vertical cut, carry out afterwards the preparation of electrode coating raw material, carry out afterwards the preparation of waterglass, carry out afterwards the preparation of electrode coating, carry out afterwards the extrusion moulding of welding rod, carry out afterwards welding rod drying and packing, carry out afterwards the check of welding rod finished product; Wherein, described waterglass is reacted with water by white carbon, caustic potash, then the reaction of logical Steam Heating makes, and described electrode coating is through joining powder and breading process, and described extrusion moulding is through wire feed, dusting, bistrique, mill tail, Printing process.
2. surfacing welding manufacture method according to claim 1, it is characterized in that: in the preparation process of described electrode coating raw material, when the ferroalloy in electrode coating and waterglass generation chemical reaction, for the measure of avoiding foaming to take is, at first, the ferroalloy easily reacted is carried out to Passivation Treatment, and guarantee the passivation quality; The second, reduce the powder content in ferroalloy; The 3rd, under possible condition, make coating dry as far as possible; The 4th, timely extrusion, the resting period of minimizing coating; The 5th, the modulus of raising waterglass, reduce concentration; The 6th, the welding rod drying condition of improvement ventilation and humidity discharging.
3. surfacing welding manufacture method according to claim 1, it is characterized in that: described waterglass is high concentration, low modulus potassium sodium type waterglass, wherein the ratio of SiO2 content and alkali metal R2O content, that is: M=SiO2/R2O*K, in formula, K is coefficient, and sodium silicate is K=1.0323; KP1 is K=1.5666 SiO2%, and R2O is SiO in waterglass 2determining the adhesive property of waterglass with the percetage by weight modulus of oxide.
4. surfacing welding manufacture method according to claim 1 and 2, it is characterized in that: welding rod is 2.8 ~ 3.0 with the modulus of waterglass, and the modulus of potassium-sodium water glass is 2.5 ~ 2.7 or 2.8 ~ 3.0.
5. surfacing welding manufacture method according to claim 1 and 2, it is characterized in that: in deployed waterglass, also add the potassium permanganate that adds 0.25% ~ 0.5% by liquid soluble glass weight, after adding afterwards hot water or boiling and make it fully be dissolved into solution, then add in waterglass.
6. surfacing welding manufacture method according to claim 1 and 2, it is characterized in that: the operation of joining powder of described electrode coating process is that the calibration pound claims, carry out afterwards the inspection of raw and process materials, carry out afterwards material conveying, unpacked afterwards, sieved afterwards, carry out afterwards the ingredient storage conveying, weighed afterwards and joined powder, tested afterwards, carry out afterwards blanking and enter mixer.
7. surfacing welding manufacture method according to claim 1 and 2, it is characterized in that: the bistrique of described extrusion forming process, mill tail process are to utilize special top and end grinding machine to complete welding rod bistrique, mill tail, the coating chamfering of striking end or wear into arc, expose core wire and be about the termination of 0.5mm, be convenient to striking, and the mill tail is the coating that removes the bare terminal end 15 ~ 30mm of welding rod, be convenient to clamping and conduction.
8. surfacing welding manufacture method according to claim 1 and 2 is characterized in that: described welding rod drying comprises and drying or low temperature drying and high temperature cure process; Described dry or the low temperature drying process to be the wet welding bar be not less than under the room temperature of 15 ℃, relative humidity is 50%~55%, through 8~18h, dries; The described high temperature process of curing is after low temperature drying is qualified, to proceed at 40~60 ℃ of temperature, through 4~8h artificial drying; The described high temperature process of curing is through low temperature, middle temperature, high temperature and is incubated certain hour, more cooling process of coming out of the stove in time below 100 ℃.
CN 201310459354 2013-10-02 2013-10-02 Surfacing electrode manufacturing method Withdrawn CN103464936A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181133A (en) * 2016-08-05 2016-12-07 雷春生 A kind of preparation method of high-hardness wear-resisting bead welding rod
CN106312297A (en) * 2016-09-30 2017-01-11 徐州市浩泰特种焊接材料厂 Melting nozzle and preparing method thereof
CN108044260A (en) * 2017-12-11 2018-05-18 安徽宝辰机电设备科技有限公司 A kind of preparation method of surfacing welding
CN110877170A (en) * 2019-12-04 2020-03-13 河海大学常州校区 Surfacing electrode, preparation method and dredging reamer abrasion repair surfacing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106181133A (en) * 2016-08-05 2016-12-07 雷春生 A kind of preparation method of high-hardness wear-resisting bead welding rod
CN106312297A (en) * 2016-09-30 2017-01-11 徐州市浩泰特种焊接材料厂 Melting nozzle and preparing method thereof
CN108044260A (en) * 2017-12-11 2018-05-18 安徽宝辰机电设备科技有限公司 A kind of preparation method of surfacing welding
CN108044260B (en) * 2017-12-11 2021-08-24 江苏九洲新材料科技有限公司 Preparation method of surfacing welding electrode
CN110877170A (en) * 2019-12-04 2020-03-13 河海大学常州校区 Surfacing electrode, preparation method and dredging reamer abrasion repair surfacing method

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Application publication date: 20131225