CN2399133Y - Molten iron thermal insulating ladle - Google Patents
Molten iron thermal insulating ladle Download PDFInfo
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- CN2399133Y CN2399133Y CN 99213000 CN99213000U CN2399133Y CN 2399133 Y CN2399133 Y CN 2399133Y CN 99213000 CN99213000 CN 99213000 CN 99213000 U CN99213000 U CN 99213000U CN 2399133 Y CN2399133 Y CN 2399133Y
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Abstract
The utility model relates to a molten iron thermal insulating ladle, which is a desulfuring molten iron ladle used for producing ductile cast iron, or vermicular cast iron, or malleable cast iron pieces. The middle of the inner lining fire resistant material of the molten iron is provided with a layer of thermal insulation material, one side or two sides of the part between the inner bottom part of the molten iron ladle and the lower section (60-300 mm) or the bestrewing bottom is provided with a position limiter, the inner part of which is store with controllable gun cover nodulizing agent, or gun cover vermicular agent, or compound inoculant, or desulfuring agent, the nodulizing, or vermicular, or inoculant molten iron ladle structure can ensure the stability of the material quality of the casting product, and the nodulizing agent, or the vermicular agent, or the inoculant can be saved more than 30%.
Description
The utility model relates to a kind of hot-metal insulating bag, and the structure of controlled gun cover nodulizing agent, gun cover vermiculizer, gun cover nucleating agent, half hidden type stopper promptly are housed, leaving out by mistake chute and hot-metal insulating bag is that lumpiness is 3-12mm
3Gun cover or not rare earth silicon and magnesium iron alloy or the iron magnesium composite light nodulizing agent or the vermiculizer of gun cover.Controlled nodulizing agent or vermiculizer be placed on carry out desulfurization spheroidizing, wriggling processing in the half hidden type stopper in the hot metal ladle.Bottom hypomere in the spheroidal graphite or the black hot metal ladle of wriggling is equipped with a control nodulizing agent or vermiculizer and contacts react half slow hidden type stopper or the dull nodularization stopper of magnesium silk with molten iron; (this structure also is useful for interior nodularization of fan-shaped bag or the wriggling processing on the centrifugal tube casting machine); A hidden type top frustum stopper for sleeping in is equipped with in bottom in the malleable iron hot metal ladle, limiting in bismuth, iron bismuth alloy, silicon bismuth boron alloy, tellurium and the various light metal half hidden type stopper in iron liquid of gun cover and breeding, belonging to a kind of gun cover nodulizing agent or nucleating agent is dual and the end of the shape of usefulness, lumpiness, spherical, parts and tapping launder is the structure of leaving out by mistake the applied in any combination of formula chute and hot-metal insulating bag.
Present known production spheroidal graphite cast iron worker vermicular cast iron, the nodularization hot metal ladle that adopts is common, uninsulated hot metal ladle, the bag inner bottom part has a chicken coop reaction chamber, it is that (being the method for pouring) this hot metal ladle loss of heat amount of pouring is fast that molten iron is gone into hot metal ladle, the molten iron cooling is fast, often because of molten iron temperature reduces, has increased the scrap rate of foundry goods; The reaction chamber of design and the nodulizing agent lumpiness of packing into structurally are irrational in this hot metal ladle, and it has not only wasted nodulizing agent, importantly impairs the material of spheroidal graphite cast iron; In nodularization molten iron treating processes, used nodulizing agent lumpiness all is at 20-40mm
3; the nodulizing agent of this big lumpiness is too strong with the molten iron contact reacts time; on fire, luminous, smolder, the loss of magnesium is too big; if in the chicken coop reaction chamber of existing nodularization hot metal ladle inner bottom part; fritter degree nodulizing agent is housed handles molten iron; speed of response is too fast especially, at all with regard to nodularization not molten iron; Build bottom in the nodularization hot metal ladle a nodularization or a wriggling reaction chamber that resembles the chicken coop shape, for nodulizing agent or vermiculizer are not dashed by iron liquid, some bushel iron pieces are pushed down nodulizing agent or vermiculizer on the upper cover of nodulizing agent or vermiculizer, do not allow its float, but, after bushel iron was melted before nodularization or the wriggling reaction, that nodulizing agent or vermiculizer just swim at once was on fire, luminous on the surface of iron liquid, smolder, basic with regard to the reaction process of uncontrollable magnesium in iron liquid.Always in the ductile iron production industry, only add nodulizing agent, strengthen the nodulizing agent of lumpiness, waste last branch by it after, utilize last branch again, had five more than ten years history; During malleable iron (malleable iron) was produced, used hot metal ladle, shape also were that loss of heat is too fast with the nodularization hot metal ladle, had lowered the temperature in bag because of molten iron temperature, and the scrap rate of foundry goods is higher; Bismuth with the molten steel preparation reaction process in, bismuth swims in fully on the iron liquid surface and reacts, and emits tobacco, the bismuth at least 60% that vapors away, the Chang Yinwei bismuth is smoldered out of control, causes molten steel preparation bad, causes operational difficulty for the malleable iron heat treatment step, a large amount of waste products occur.
Utility model patent number: 95219223.X, hidden type return whirlpool nodularization hot metal ladle, save nodulizing agent and can only reach 26%, and also not very good, subject matter is that operation easier is big.
The purpose of this utility model is exactly the deficiency that overcomes above-mentioned prior art, provide a kind of hot-metal insulating bag for producing spheroidal graphite cast iron, vermicular cast iron, malleable iron, slow with different levels conversion unit parts half hidden type stopper, leave out by mistake the formula chute, the hot-metal insulating package closes structure.As specification sheets Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13 shown in the sectional view of totally ten three kinds of shape and structure parts front views, half hidden type stopper and hot metal ladle structure belong to the formula that overflows into, shape and structure is simple, with low cost, adopt this structure can reduce the cost of spheroidal graphite, vermicular cast iron, sign indicating number product made from steel, operation easily.
The purpose of this utility model is to realize like this, in various half hidden type stoppers, carry out the lumpiness of the controlled rare earth silicon and magnesium nodulizer or the rare earth zinc calcium magnesium vermiculizer of nodularization or wriggling reaction, no matter be Fig. 2 of fusing preparation, Fig. 1 of still mechanical batch mixing preparation, rare earth Mg-Si calcium nodularizer or rare earth zinc calcium magnesium vermiculizer, its lumpiness all is that requirement is very strict, and the lumpiness (4) of gun cover nodulizing agent or gun cover vermiculizer is not more than 9mm
3, the calcareous nodulizing agent of a book layer at its appearance gun cover; Be divided into gun cover not at the outside surface of the controlled nodulizing agent of various lumpiness or gun cover the calcareous deferred reaction agent of skim.When in nodularization hidden type stopper, adding nodulizing agent, is furnished with a blanking funnel; Nodularization or wriggling in the fan-shaped bag on centrifugal tube casting machine, the structure of half hidden type stopper in bag is with aforementioned.
The lumpiness that magnesium, iron, zinc, calcium carbide powder, yellow soda ash, fluorite powder, lime carbonate, calcium oxide composite light nodulizing agent or vermiculizer (3) are divided into spherical shape or broken last shot shape is generally 3-12mm
3, proportion is 2.7-3.2.Calcium oxide, fluorite powder are sweetening agents.(3), (4), can be used for nodularization or wriggling in the fan-shaped bag on the centrifugal tube casting machine.
The lumpiness of malleable iron nucleating agent bismuth or compound bismuth nucleating agent is 20-40mm
3, dividing patty, long square shape sheet, it is calcareous that its surperficial gun cover one deck.
After the molten iron of casting spheroidal graphite or pieces of vermicular cast iron is come out of the stove, the order of nodularization or wriggling, the molten iron trough front end that flows in the hot metal ladle is the formula of leaving out by mistake of sealing, above or the bag in hypomere bottom in the bag is equipped with the thick 20-50mm that a refractory materials makes and overflows into stopper at the end, length and width are not limit, practical getting final product, perpendicular partition type stopper Fig. 9 is two kinds of semicircle or rectangles, in the vertical or horizontal space bar of 1-5 bar is arranged, the thickness of space bar is 20-50mm, the spacing of space bar is 20-100mm, or there is not a partition shape, being divided into is three and half hidden type stoppers, and inwall is neat straight stopper, is applicable to that lumpiness is at 9mm
3The spheroidizing reacion of following rare earth silicon-calcium magnesium alloy.Stopper Figure 10 is three-dimensional semicircle or rectangle, is the stopper of up-small and down-big interior frustum half hidden type, has in the stopper laterally or space bar or do not have dividing plate longitudinally, and the two sides of dividing plate are to go up the wide narrow inclined-plane of.Stopper Figure 11 is two kinds of semicircle or rectangles, in 1-5 bar dividing plate is arranged, vertical or horizontal interval cover plate or all be vertical zigzag fashion every the both sides and the spatial wall of cover plate continuously, the spatial wall is holding various nodulizing agents for vertical zigzag fashion entirely, is limited to the sawtooth position spheroidizing reacion takes place with having levels.Half hidden type stopper has circle, square, rectangle, semicircle or perlite covering complex and the dull stopper of magnesium silk; Also available refractory materials or perlite build up the hidden type stopper of above-mentioned different shape in the hot metal ladle bottom, result of use is close, with various nodulizing agent stoppers or vermiculizer stopper, be installed in the hot metal ladle inner bottom part rotor shaft direction a side or with the hot metal ladle bag chew direction at an angle of 90 parallelism one side or various stoppers are installed in two sides (install on one side) of the rotor shaft direction of hot metal ladle inner bottom part, or the barrier type stopper is installed in any one position of hot metal ladle bottom or whole hot metal ladle bottom is covered with lattice type dividing plate stopper, such installation site is used for interior use of fan-shaped bag on super-huge nodularization hot metal ladle, the especially centrifugal tube casting machine.The shape size of nodularization stopper or wriggling stopper all is identical, the oneself height of nodularization stopper or wriggling stopper is 45-350mm, after this stopper is installed in the bag, the height that protrudes the bag inner bottom part is no more than 40-300mm or various half stoppers is installed in below the side of rotating shaft aspect of hot metal ladle inner bottom part, or below hot metal ladle bottom, build the halfpace pit of the size shape that becomes to be similar to various hidden type stoppers, laterally be spaced 2-5 block gap cover plate in the upper edge of pit, cover plate is hidden deferred reaction.It is thick to build into one 30-60mm again on the limit of halfpace, the partition wall that 50-100mm is high, and the degree of depth of pit is not limit, and can deposit down nodulizing agent or vermiculizer or nucleating agent just.Size, shape, the size of various desulfurization nodularizations, wriggling hidden type stopper internal volume all is that big or small required nodularization, the wriggling speed of response speed with the hot metal ladle internal volume determines.End quadrature or stopper internal reaction chamber quadrature suitable for reading in the general stopper be at the bottom of the nodularization hot metal ladle quadrature 2/3rds to 1/8th.Fig. 4 is a hot metal ladle (1) and the unitized construction of stopper (5) A, gun cover nodulizing agent (3).Fig. 5 is a hot metal ladle 1 and the unitized construction of stopper (5) B, nodulizing agent (4).Fig. 6 is the unitized construction of hot metal ladle (1) and stopper (5) C.
It is bag and the fit structure of leaving out by mistake formula chute and stopper that malleable iron is produced used hot metal ladle, it is characterized in that, in a side of bag inner bottom part rotor shaft direction or more than the central 20mm, 80mm is with upper/lower positions, the horizontal frustum stopper of nucleating agent hidden type that a refractory materials is made is housed, the interior top of stopper is the frustum inclined-plane, and the nucleating agent stopper is divided into two kinds of shape and structures of Figure 12, Figure 13.12 the long 200mm of outer shape body, wide 100mm, high 30-80mm.The 13rd, there is the end that nucleating agent stopper suitable for reading is arranged, preceding 3/4 section is the frustum inclined-plane, and the top, back is an arc surface, and respectively there is a mouth front of stopper and two sides, and a charging opening is arranged at the top, 1-4 venting port, the front also is a charging opening, both sides are venting holes.13 the long 200mm of outer shape, wide 100mm, high 30-80mm.The height of the rear end, frustum inclined-plane on two kinds of interior tops of nucleating agent stopper is 20-60mm.12,13 2 kinds of shape stoppers, available refractory brick is built into approximate shapes in the position of same qualification, and result of use is the same.Hot metal ladle connects that molten iron is left out by mistake the formula chute and the nucleating agent stopper is used in combination.12,13 usefulness refractory materialss are that an aluminium, two aluminium, three aluminium, clay are made, and every refractory materials can both be used for manufacturing.Fig. 3 is hot metal ladle (1), leave out by mistake the unitized construction of chute (2), stopper (6) B.
Nodularization hot-metal insulating bag or nodularization hot metal ladle Fig. 8 are controlled gun cover nodulizing agent or vermiculizer, hot-metal insulating bag and the fit structure of leaving out by mistake formula chute and nodularization hidden type stopper, assemble a revolution insulation cover and one at bag mouth and connecing the molten iron funnel, or singly be fitted with a revolving hopper that connects molten iron.An air inlet port is arranged on insulation cover, a venting hole, and be furnished with well heater or heaterless two kinds.The hot-metal insulating bag is big, the little cone shape of going to the bottom suitable for reading, indentured is iron plate, double-deck refractory brick, respectively there is a fulcrum at four angles of refractory brick between the double-deck refractory brick, adorn mineral wool or perlite or vermiculite power between brick and the brick, building by laying refractory materials in the bag, or pasting one deck book refractory brick in addition, in the side of bottom hot metal ladle rotor shaft direction of bag, nodularization or wriggling are installed or breed and overflow into stopper or build the pit that becomes to be similar to various hidden type stopper shapes or be lower than the halfpace pit that wraps the end.
Molten iron trough (2) front end that flows into hot metal ladle seals down the formula of leaving out by mistake, and has the small opening location of a Ф 60-120mm to fall into nodularization hot metal ladle bottom in distance front end 30mm chute bottom surface.Fig. 7 leave out by mistake the formula chute or connect the molten iron funnel can be contained on the cupola furnace or hot metal ladle (1) on.
The dull nodularization stopper of magnesium silk is fixed on the elevator, by elevator dull nodularization stopper is settled down in the hot metal ladle, carries out spheroidizing reacion in the molten iron that wraps end 50mm place or reacts in the hidden type stopper.The appearance of dull nodularization stopper is a refractory materials, and the centre is the iron pipe water(-cooling) jacket, and inside is many row's porous magnesium silk conduits (magnesium silk conduit is divided into single 3-4 hole or double 6-8 hole).Diameter is that the magnesium silk of Ф 1-3mm leads to be pushed in the hot metal ladle carry out spheroidizing reacion in the molten iron at bag end 50mm place by leading into device in conduit.
The utility model hot-metal insulating is surrounded by four characteristics: 1, nodulizing agent or vermiculizer help molten iron absorption magnesium vapor in nodularization sluggish in early stage; 2, hidden type nodularization stopper is limited in the gun cover nodulizing agent in the undercovert in the molten iron spheroidizing reacion process, does not float over the molten iron surface on nodulizing agent or vermiculizer or nucleating agent are not understood; 3, nucleating agent hidden type stopper can be absorbed bismuth fully by iron liquid; 4, can save nodulizing agent more than 40%, nucleating agent is more than 60%.
The explanation of Figure of description drawing, Fig. 8 is a Figure of abstract.Figure 12 is the no end, the sectional view of nucleating agent hidden type stopper (6) A front view suitable for reading is arranged.Figure 13 has the end that the sectional view that the top is nucleating agent hidden type stopper (6) the B front view of dome of going up suitable for reading is arranged.Fig. 9 is the vertical view of three-dimensional semicircle hidden type stopper (5) A front view.
Figure 10 is upright sectional view of stopping frustum stopper (5) B front view.
Figure 11 is the sectional view of vertical taper type stopper (5) C front view.
Fig. 1 is that machinery mixes the controlled gun cover nodulizing agent of system or the heap figure of vermiculizer (3).
Fig. 2 melts the controlled nodulizing agent of the no gun cover of preparing or the heap figure of vermiculizer (4).
Fig. 3 is that malleable iron nucleating agent hidden type stopper (6) B and hot-metal insulating bag (1) are left out by mistake the sectional view of the structural front view of chute (2).
Fig. 4 is the sectional view of three-dimensional semicircle hidden type stopper (5) A, gun cover nodulizing agent (3) and hot metal ladle (1) structural front view.
Fig. 5 is the sectional view of three-dimensional wriggling of taper type hidden type stopper (5) B, no gun cover nodulizing agent (4) and hot metal ladle (1) structural front view.
Fig. 6 is the sectional view of vertical zig-zag hidden type stopper (5) C and hot metal ladle (1) structural front view.
The sectional view of the structural front view of Fig. 7 tapping launder (2) and hot-metal insulating bag (1).
Fig. 8 nodulizing agent (4), stopper (5) A, leave out by mistake the sectional view of formula chute (2) and hot metal ladle (1) structural front view.
Embodiment 1, nodularization stopper (5) A is installed in rotor shaft direction one side of Fig. 4 hot metal ladle inner bottom part bag, again with lumpiness 6mm
3Rare earth ball, granulous gun cover nodulizing agent are put into stopper, space bar spacing in the stopper is 70mm, then, hot metal ladle Fig. 4 is placed in leaves out by mistake under the formula molten iron trough leak, wait iron liquid and leave out by mistake, white light and dense smoke in reaction process, do not occur into position that limits in Fig. 4 hot metal ladle and nodulizing agent generation reaction stably.After spheroidizing reacion finished, the stokehold test piece was qualified.Fig. 8 is nodulizing agent (3), stopper (5) A, hot metal ladle (1), molten iron trough (2) unitized construction.
Claims (5)
1, a kind of hot-metal insulating bag, in indentured iron plate shell, one deck refractory materials is arranged, bag is being contained nodulizing agent the end and is being poured the molten iron nodularization, it is characterized in that, hot metal ladle (1) refractory materials (refractory brick) sandwich one deck lagging material, stopper (5) A, (6) B are being adorned in the bag end, containing gun cover nodulizing agent or vermiculizer (3), (4) or nucleating agent or sweetening agent in the stopper, molten iron is left out by mistake chute (2) location through one and is fallen into hot metal ladle in and (3), (4) reaction of meeting.
2, hot-metal insulating bag according to claim 1, it is characterized in that, hot-metal insulating bag or hot metal ladle (1) with leave out by mistake formula chute (2), stopper (5) A or the controlled gun cover nodulizing agent of (6) B or vermiculizer (3), (4) are unitized construction, there are revolution insulation cover or one to connect the molten iron funnel on the bag mouthful, cover an air inlet port, be communicated with well heater, a venting hole, respectively there is a fulcrum at four angles of refractory brick, are adorning mineral wool or vermiculite power, perlite between the double-deck brick.
3, hot-metal insulating bag according to claim 1, it is characterized in that, nodularization or wriggling stopper (5) A, (5) B, (5) C, (6) B is a fire resistive material product, in 1-5 piece vertical and horizontal diaphragm is arranged, its thickness 20-50mm, the size of stopper is not limit, can put down nodularization, vermiculizer gets final product, stopper has circle, square, rectangle, the dull stopper of semicircle or perlite covering complex and magnesium silk, stopper hot metal ladle bottom arbitrarily distributing position or be covered with whole bag at the bottom of, in the nodularization stopper quadrature suitable for reading be bottom the nodularization hot metal ladle quadrature 2/3rds to 1/8th;
Malleable iron breeds horizontal frustum stopper (6) B, and to have the end to have suitable for reading, and front end is a charging opening, and both sides are venting holes, the long 200mm of outer shape, wide 100mm, high 30-80mm, the height 20-60mm of the rear end, frustum inclined-plane of crouching.
4, hot-metal insulating bag according to claim 1 is characterized in that, controlled gun cover or do not have the rare earth silicon and magnesium iron nodulizing agent of gun cover or the lumpiness of rare earth zinc calcium magnesium vermiculizer (4) is not more than 9mm
3The lumpiness that magnesium, iron, zinc, calcium carbide powder, yellow soda ash, fluorite powder, lime carbonate, calcium oxide, composite light nodulizing agent or vermiculizer (3) are divided into the diffusing shape (3) of spherical shape or broken end is 3-12mm
3, proportion is 2.7-3.2;
The lumpiness of malleable iron nucleating agent bismuth or compound bismuth nucleating agent is 20-40mm
3, dividing patty, long square shape sheet, it is calcareous that its surperficial gun cover one deck.
5, hot-metal insulating bag according to claim 1 is characterized in that, leaves out by mistake formula molten iron trough (2) front end and seals, and in distance front end 30mm chute bottom surface a Ф 60-120mm is arranged
3The location fall into the molten iron small opening of nodularization bag bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213000 CN2399133Y (en) | 1999-06-13 | 1999-06-13 | Molten iron thermal insulating ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99213000 CN2399133Y (en) | 1999-06-13 | 1999-06-13 | Molten iron thermal insulating ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2399133Y true CN2399133Y (en) | 2000-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99213000 Expired - Fee Related CN2399133Y (en) | 1999-06-13 | 1999-06-13 | Molten iron thermal insulating ladle |
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| CN (1) | CN2399133Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350495A (en) * | 2011-10-17 | 2012-02-15 | 中钢集团邢台机械轧辊有限公司 | Spheroidized ladle with long service life |
| CN103008574A (en) * | 2012-12-31 | 2013-04-03 | 东风汽车股份有限公司 | Cover plate and method for preventing poor spheroidization of nodular cast iron |
| CN103421927A (en) * | 2013-03-04 | 2013-12-04 | 天津市万路科技有限公司 | External molten iron desulfurization treatment method |
| CN103495723A (en) * | 2013-10-09 | 2014-01-08 | 河南省金太阳铸造有限公司 | Ladle body structure of ladle |
| CN103691925A (en) * | 2013-12-27 | 2014-04-02 | 广西铁合金有限责任公司 | Integral slight-decarbonizing ladle for production of low-carbon manganese-silicon alloy |
| WO2014134762A1 (en) * | 2013-03-04 | 2014-09-12 | 天津市万路科技有限公司 | Nodularization method for nodular cast iron |
| CN104451354A (en) * | 2014-10-15 | 2015-03-25 | 裴柯兴 | Spheroidal graphite cast iron spheroidizing system |
| CN105108126A (en) * | 2015-09-21 | 2015-12-02 | 裴柯兴 | Rotating disc type spheroidizing ladle |
| CN105420438A (en) * | 2015-12-30 | 2016-03-23 | 广西玉柴机器股份有限公司 | Vermicularizing processor |
-
1999
- 1999-06-13 CN CN 99213000 patent/CN2399133Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350495A (en) * | 2011-10-17 | 2012-02-15 | 中钢集团邢台机械轧辊有限公司 | Spheroidized ladle with long service life |
| CN103008574A (en) * | 2012-12-31 | 2013-04-03 | 东风汽车股份有限公司 | Cover plate and method for preventing poor spheroidization of nodular cast iron |
| CN103008574B (en) * | 2012-12-31 | 2015-07-08 | 东风汽车股份有限公司 | Cover plate and method for preventing poor spheroidization of nodular cast iron |
| CN103421927A (en) * | 2013-03-04 | 2013-12-04 | 天津市万路科技有限公司 | External molten iron desulfurization treatment method |
| WO2014134762A1 (en) * | 2013-03-04 | 2014-09-12 | 天津市万路科技有限公司 | Nodularization method for nodular cast iron |
| CN103495723A (en) * | 2013-10-09 | 2014-01-08 | 河南省金太阳铸造有限公司 | Ladle body structure of ladle |
| CN103691925A (en) * | 2013-12-27 | 2014-04-02 | 广西铁合金有限责任公司 | Integral slight-decarbonizing ladle for production of low-carbon manganese-silicon alloy |
| CN104451354A (en) * | 2014-10-15 | 2015-03-25 | 裴柯兴 | Spheroidal graphite cast iron spheroidizing system |
| CN105108126A (en) * | 2015-09-21 | 2015-12-02 | 裴柯兴 | Rotating disc type spheroidizing ladle |
| CN105420438A (en) * | 2015-12-30 | 2016-03-23 | 广西玉柴机器股份有限公司 | Vermicularizing processor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |