CN103586562A - Copper-plating-free air-gouging carbon bar and process method thereof - Google Patents
Copper-plating-free air-gouging carbon bar and process method thereof Download PDFInfo
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- CN103586562A CN103586562A CN201310295164.7A CN201310295164A CN103586562A CN 103586562 A CN103586562 A CN 103586562A CN 201310295164 A CN201310295164 A CN 201310295164A CN 103586562 A CN103586562 A CN 103586562A
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- bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0205—Non-consumable electrodes; C-electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/013—Arc cutting, gouging, scarfing or desurfacing
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Abstract
Disclosed is a technology method of a copper-plating-free air-gauging carbon bar. The copper-plating-free air-gauging carbon bar is made of materials including, by weight, 40-45% of asphalt coke, 20-25% of artificial graphite powder, 5-6% of an antioxidant additive and 28-30% of asphalt. The technology method includes: 1), mixing and kneading the above materials prior to feeding the same into an extruder and extruding into a bar material with a center hole, wherein the diameter of the bar material ranges from 8mm to 18mm, the diameter of the center hole ranges from 2mm to 6mm, and one bar is extruded in 1/2 seconds; 2), feeding the bar into a roasting furnace and roasting the same at the temperature ranging from 1200DEG C to 1300DEG C for 7 to 8 days; 3), turning off electricity of the roasting furnace, subjecting the bar to heat preservation for 6 to 7 days; opening the roasting furnace for natural cooling for 5 to 7 days, wherein the proportion of the bar material is from 1.56 to 1.62; 4), machining the formed bar material into the bar with a cone-shaped head of 1:50 in taper and an end face of the tail to be a 45-degree*1.5 chamfer. By the process method, the defect due to plated electrolytic copper on the surface in the prior art is completely overcome, pollution to the environment and injury to human body during production and usage can be effectively avoided, and the environment is protected; production cost can be effectively lowered, and production efficiency can be improved.
Description
Technical field
Not copper facing of the present invention gouge carbon-point is mainly used in the cutting of steel plate, the present invention be more particularly directed to the improvement of not copper facing gouge carbon-point and process thereof.
Background technology
The existing process of preparing gouge carbon-point is, pitch coke 45%, and graphous graphite powder 30%,, pitch 35%, is weight ratio; By above-mentioned material kneading, be squeezed into bar-shaped, 1/3 second extruding one, push three each second, by every long 300 millimeters of calculating; At the temperature of 1200～1300 ℃, carry out roasting, after moulding, bar proportion is 1.42～1.5.This bar, because extrusion speed is fast, can cause density low, produces therefrom a lot of pores, after air enters, is stored in pore, and product is very easily oxidized; Because bar is solid construction, rupture strength is poor.For addressing these problems, the means of taking are at present, after above-mentioned technique completes, then are increased in the copper-plated operation of Surface of Rod Bar, become gouge carbon-point after copper facing, so just can improve oxidation resistance and the rupture strength of product, strengthen its conductance.Owing to having increased copper-plating technique, therefore in production process and in the use procedure of product, surrounding enviroment have been caused to severe contamination; Because this product is in steel plate cutting process, can produce a large amount of harmful substances and harmful smog, also human body has been caused to injury simultaneously.
Because carbon-point is cylindrical structure, head and afterbody both ends of the surface are plane, and in use, head end contact area is large, can affect the speed that arcing temperature rises during cutting steel plate, weaken cutting power, and cut part quality is unstable; Tail end face easily hurts staff.
Summary of the invention
the present invention overcomes the shortcoming that above-mentioned prior art exists, and a kind of improved not copper facing gouge carbon-point and process thereof are provided.
A gouge carbon-point process, is characterized in that, material by its weight ratio is, pitch coke 40～45%, graphous graphite powder 20～25%, antioxidant 5～6%, pitch 28～30%;
(1) above-mentioned material is stirred after kneading, enter extruder and be squeezed into the bar with centre bore; Diameter of rod 8～18mm, center-hole diameter is 2～6mm; One of extruding in 1/2 second;
(2) enter in roaster, carry out roasting at the temperature of 1200～1300 ℃, the time is 7～8 days;
(3), by roaster power-off, in roaster, be incubated 6～7 days; Open roaster, cooling is 5～7 days naturally;
Bar proportion is 1.56～1.62.
Technique of the present invention has thoroughly solved prior art because of the shortcoming that top layer plating cathode copper exists, and effectively avoids pollution on the environment and the injury to human body in production and use procedure, has protected environment; The present invention can effectively reduce to produce and produce this, and can enhance productivity.
Because not copper facing of the present invention gouge carbon-point is with centre bore, increased rupture strength, product should not be out of shape under internal stress effect.The improvement of technique, one of extruding in 1/2 second, pushes two each second, compared with the prior art, under equal conditions, the bar that pushes identical length, extrusion speed slows down, and the density of bar will increase, pore will reduce, avoided the air of storage in advance, carbon-point proportion increases, and has therefore improved carbon-point antioxygenic property.The combination of multiple material of the present invention and improved technique, make not copper facing gouge carbon-point strengthen rupture strength, strengthened conductance, extended the service life of product.In the present invention's formula, increase antioxidant, also strengthened accordingly antioxygenic property.
After above-mentioned technique, then bar after moulding is carried out to machined, head is cone shape, and tapering is 1:50, and the end face of afterbody is at 45 ° * 1.5 chamferings; After machined, become not copper facing gouge carbon-point.
During the use of not copper facing of the present invention gouge carbon-point, the high temperature that cutting produces can extend upward on the continuous inclined-plane along head cone, and in continuous oxidizing process, it is roughly constant that the shape of cone keeps.Because not copper facing gouge carbon-point head adopts cone shape, cone front end face contact area is little, in cutting, is to increase the speed that arcing temperature rises, and increases cutting power, and not only using electricity wisely has improved precision and the surface smoothness of work piece simultaneously.The end face of carbon-point afterbody is at 45 ° * 1.5 chamferings, during use, can not damage staff.
The present invention can be widely used in the industry such as shipbuilding, boiler, casting, reparation to big-and-middle-sized Steel structure equipment, steel plate channeling, the cuttings such as stainless steel, mild steel, cast iron and non-ferrous metal, front groove, stripping rib, the features such as punching etc., have efficiency high, and noise is little, alleviate labour intensity, can improve output and product quality.
Accompanying drawing explanation
Fig. 1 is product club shaped structure schematic diagram of the present invention.
1 not copper facing gouge carbon-point, 2 centre bores, 3 cones, 4 chamferings.
The specific embodiment
A gouge carbon-point process, material by its weight ratio is, pitch coke 45%, graphous graphite powder 20%, antioxidant 5%, pitch 30%;
(1) above-mentioned material is stirred after kneading, enter extruder and be squeezed into bar-shaped with centre bore 2; Diameter of rod 8mm, center-hole diameter is 2mm; One of extruding in 1/2 second; Every long 300 millimeters;
(2) enter in roaster, carry out roasting at the temperature of 1200～1300 ℃, the time is 7～8 days;
(3), by roaster power-off, in roaster, be incubated 6～7 days; Open roaster, cooling is 5～7 days naturally; Bar proportion is 1.56～1.62;
(4) bar after moulding is carried out to machined, head is cone 3, and tapering is 1:50, and the end face of afterbody is at 45 ° * 1.5 chamferings 4; After machined, become not copper facing gouge carbon-point 1, carbon-point diameter precision ± 0.05mm, carbon-point surface smoothness is minute surface.
Why carbon-point diameter precision be ± 0.05mm, is during because of work, and the variation of carbon-point sectional area size can cause the variation of resistivity, thereby affects the quality of work piece; Carbon-point surface smoothness is minute surface, can weaken carbon-point anti-oxidant, and work quality is stable, can guarantee precision and the surface smoothness of work piece; Can extend the service life of carbon-point simultaneously.
Claims (5)
1. a not copper facing gouge carbon-point process, is characterized in that, material by its weight ratio is, pitch coke 40～45%, graphous graphite powder 20～25%, antioxidant 5～6%, pitch 28～30%;
(1) above-mentioned material is stirred after kneading, enter extruder and be squeezed into the bar with centre bore; Diameter of rod 8～18mm, center-hole diameter is 2～6mm; One of extruding in 1/2 second;
(2) enter in roaster, carry out roasting at the temperature of 1200～1300 ℃, the time is 7～8 days;
(3), by roaster power-off, in roaster, be incubated 6～7 days; Open roaster, cooling is 5～7 days naturally;
Bar proportion is 1.56～1.62.
2. according to not copper facing gouge carbon-point process claimed in claim 1, it is characterized in that, (4) carry out machined by bar after moulding, and head is cone shape, and tapering is 1:50, and the end face of afterbody is at 45 ° * 1.5 chamferings.
3. according to the not copper facing gouge carbon-point process described in claim 1 or 2, it is characterized in that, material by its weight ratio is, pitch coke 45%, graphous graphite powder 20%, antioxidant 5%, pitch 30%.
4. a not copper facing gouge carbon-point of making according to above-mentioned not copper facing gouge carbon-point process.
5. according to not copper facing gouge carbon-point claimed in claim 4, it is characterized in that, carbon-point diameter precision ± 0.05mm, surface smoothness is minute surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310295164.7A CN103586562B (en) | 2013-07-15 | 2013-07-15 | Not copper facing gouge carbon-point and process thereof |
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| CN201310295164.7A CN103586562B (en) | 2013-07-15 | 2013-07-15 | Not copper facing gouge carbon-point and process thereof |
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| CN103586562B CN103586562B (en) | 2016-03-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401975A (en) * | 2014-10-28 | 2015-03-11 | 湖南省长宇新型炭材料有限公司 | Environmental-friendly air gouging carbon electrode and preparation method thereof |
| CN105693247A (en) * | 2016-01-21 | 2016-06-22 | 延边双龙炭素制品有限公司 | Production method of high-efficiency, energy-saving and environment-friendly air-arc gouging carbon electrode |
| CN106431404A (en) * | 2016-08-31 | 2017-02-22 | 王国珍 | Technological method for preparing welding heating rod |
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| US4182947A (en) * | 1975-12-10 | 1980-01-08 | Brower Jerome S | Underwater cutting rod |
| CN1060617A (en) * | 1990-10-16 | 1992-04-29 | 沈阳市辽中化工总厂 | A kind of air gouging technology |
| US20070092429A1 (en) * | 2005-10-24 | 2007-04-26 | Conocophillips Company | Methods of preparing carbon-coated particles and using same |
| CN101538036A (en) * | 2009-04-28 | 2009-09-23 | 中国科学院山西煤炭化学研究所 | Method for preparing high thermal conductivity graphite material |
| JP2012033376A (en) * | 2010-07-30 | 2012-02-16 | Mitsubishi Chemicals Corp | Negative electrode active material for nonaqueous secondary battery |
| CN102951634A (en) * | 2012-11-21 | 2013-03-06 | 成都炭素有限责任公司 | Oversized isostatic pressing graphite and production method thereof |
| CN203031094U (en) * | 2012-11-27 | 2013-07-03 | 北京奥邦焊业有限公司 | Adjustable automatic carbon arc air gouging machine |
-
2013
- 2013-07-15 CN CN201310295164.7A patent/CN103586562B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4182947A (en) * | 1975-12-10 | 1980-01-08 | Brower Jerome S | Underwater cutting rod |
| CN1060617A (en) * | 1990-10-16 | 1992-04-29 | 沈阳市辽中化工总厂 | A kind of air gouging technology |
| US20070092429A1 (en) * | 2005-10-24 | 2007-04-26 | Conocophillips Company | Methods of preparing carbon-coated particles and using same |
| CN101538036A (en) * | 2009-04-28 | 2009-09-23 | 中国科学院山西煤炭化学研究所 | Method for preparing high thermal conductivity graphite material |
| JP2012033376A (en) * | 2010-07-30 | 2012-02-16 | Mitsubishi Chemicals Corp | Negative electrode active material for nonaqueous secondary battery |
| CN102951634A (en) * | 2012-11-21 | 2013-03-06 | 成都炭素有限责任公司 | Oversized isostatic pressing graphite and production method thereof |
| CN203031094U (en) * | 2012-11-27 | 2013-07-03 | 北京奥邦焊业有限公司 | Adjustable automatic carbon arc air gouging machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401975A (en) * | 2014-10-28 | 2015-03-11 | 湖南省长宇新型炭材料有限公司 | Environmental-friendly air gouging carbon electrode and preparation method thereof |
| CN105693247A (en) * | 2016-01-21 | 2016-06-22 | 延边双龙炭素制品有限公司 | Production method of high-efficiency, energy-saving and environment-friendly air-arc gouging carbon electrode |
| CN106431404A (en) * | 2016-08-31 | 2017-02-22 | 王国珍 | Technological method for preparing welding heating rod |
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| CN103586562B (en) | 2016-03-02 |
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