CN2096430U - Vacuum die-cast equipment without pouring head grinding ball - Google Patents
Vacuum die-cast equipment without pouring head grinding ball Download PDFInfo
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- CN2096430U CN2096430U CN 90205352 CN90205352U CN2096430U CN 2096430 U CN2096430 U CN 2096430U CN 90205352 CN90205352 CN 90205352 CN 90205352 U CN90205352 U CN 90205352U CN 2096430 U CN2096430 U CN 2096430U
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Abstract
The utility model relates to vacuum die-cast equipment without a pouring head grinding ball, particularly the die-casting production of grinding balls in a large scale to replace forging steel balls. The utility model is suitable for equipment used in concentration plants, cement industries, and thermal power plants. The utility model is characterized in that 60 to 200 upper pressure rods are arranged on an upper pressure plate connected with the equipment and an upper press machine, 60 to 200 lower pressure rods are arranged on a lower pressure plate connected with and the equipment a lower press machine, the end of the pressure rod is an arc-shaped ball cutting cover which is provided with an upper mould, a middle mould and a lower mould, and the moulds are provided with ear handles which are used for localization. Pneumatic chucking devices are arranged at four positions of the circumferences of the middle mould and the lower mould, and a vacuum treatment system is arranged. The grinding balls produced by the utility model by a die-casting method have the advantages of no pouring heads, no feeder heads, no shrinkage holes, and no gas holes. The productivity of the utility model is very high.
Description
The utility model relates to a kind of automatic sealer vacuum and adds magnesium and add low rare earth and handle spheroidal graphite cast-iron, using upper-lower seal forcing press evacuated die-casting process riser-free abrading-ball then replaces hot rolling steel ball (or forged steel ball), particularly large-scale production abrading-ball to replace forged steel ball to be applied to the equipment in smelter ore dressing plant and cement industry, thermal power plant.
The whole nation, big-and-middle-sized smelter ore dressing plant needs the steel ball few hundred thousand tonnes of every year, the cement industry in the whole nation needs the steel ball few hundred thousand tonnes of every year, the thermal power plant in the whole nation needs steel ball more than 150,000 tons every year, current steel are in short supply, the cost of medium manganese nodular cast iron abrading-ball is more much lower than steel ball, so replace steel ball that very big economic worth is arranged with the medium manganese nodular cast iron abrading-ball.The factory's casting high-chromium cast-iron ball that has, but dead head waste molten iron is a lot, and chromium is rare metal, feels unfortunate.The factory's casting evanohm cast steel ball that has, dead head waste molten steel is more, and the cleaning dead head more bothers.One ton of the iron ball that diameter is 60 millimeters just has more than 1,000, and the iron ball that casts out has pore, and just there be more than 10,000 as casting ten tons of iron balls every day, as use the iron hammer spruing, will be very loaded down with trivial details work; And the dead head that many iron balls are arranged beats untotally, stays on the iron ball, and manual and centrifugal casting ball is not always the case.
In order to promote ductile iron abrading-ball, 82 years 1 phases of magnesium iron magazine, (Guangdong science and technology publishing house) reported, if national cement industry all replaces steel ball with nodular cast iron balls, can be country every year and saved about 50,000,000 yuan, and economic benefit is very big.On October 7th, 86, technical market newspaper was announced country's project of emphasis new technology spread during the Seventh Five-Year Plan period, and evanohm cast steel ball manufacturing technology is wherein arranged, and because of the steel ball of 80 millimeters of diameters per ton has more than 500, drew with oxygen that to cut dead head will be pretty troublesome work.The basic knowledge of the spheroidal graphite cast-iron that Guan Hongye writes (guangdong edition 1980) is pointed out, agricultural machinery factory, Jiamusi, Heilungkiang, expansion is converted into the principle of feeding according to ductile iron solidification, adopt the rigidity casting mold, the success of head-free casting spheroidal graphite cast-iron, eliminated shrinkage cavity and shrinkage porosite, but theirs there is a cast gate, also solves the pore problem of eliminating.Zhang Ruilong is at the patent nodular cast iron balls without gate and riser evacuated die-casting process equipment of application on October 27th, 86, application number 86208247, though solved the riser-free problem, the measure in mould life-span did not propose the alignment pin orientation problem yet during the method for mould thickening improved in not having to propose.So the imperforate abrading-ball of die casting riser-free, the life-span of improving compression mod is anxious to be solved.
The automatic sealed vacuum of spheroidal graphite cast-iron that the purpose of this utility model will provide Zhang Ruilong to deliver at 83 years 2 phases new technology new technology magazine (National Defense Industry Press) adds magnesium and adds low rare earth treating apparatus, repacking becomes forcing press up and down, use in conjunction, or utilize the prior oil pressure machine to carry out die casting, this is the abrading-ball riser-free that comes out of die casting not only, and pore-free, has solved the problem of cleaning dead head difficulty and has improved the quality of abrading-ball, and the thickness of middle mould, the life-span of having improved compression mod have been strengthened.
The scheme that technology of the present utility model solves, the automatic sealer of drving sprial formula shown in Figure 1 is reequiped, with bottom helical rotation shown in Figure 1, the principle that the nut straight line is walked about, lay down cylinder on top, a fly press is installed again, and this drving sprial is the multi-head spiral that adopts the oil film type lubricated.Or application has the hydraulic press of upward pressure machine and downforce machine.Adorn 60 to 200 depression bars on the platen that connects with the upward pressure machine, the end of depression bar is that the ball of arc cuts lid, this curve cut lid and spherical cavity cross section in conjunction with the time just in time become a complete empty spheroid (see figure 3).For the service life of mould in improving, the thickness of mould in can improving, in the cast beginning, the curve of down-pressed pole cuts the concave surface minimum point of lid when the peak of spherical cavity, can calculate the volume of cylindrical hole and the equal height of volume of spherical cavity, make the molten iron that pours into just in time be full of spherical cavity (down-pressed pole decline back), just in time be pressed into the iron ball of riser-free after down-pressed pole presses down, and middle mould can be than application number 86208247 much higher, thereby service life of mould in prolonging.Three moulds of upper, middle and lower are arranged, the material of mould and the material of depression bar adopt resistant to elevated temperatures material 3Gr18Ni25Si2 or 1Gr25Ni20Si2 or special cermacis, or cermet, or 9Gr18MOV, 3Gr24NiNRe, ZGCr18Ni12Mo2Ti, heat resisting steel such as 3W23Cr4Mo2Ti, or adopt the ZG1Cr9Ni60Co15MoTiAL nickel-base alloy.As the steel material adopting is as No. 45 steel or ZG45 cast steel, the surperficial last layer special cermacis of mould and depression bar then, the concave surface of down-pressed pole fetches molten iron, is heated in the short time of Xia Jianging then, depression bar will be subjected to thermal expansion, but thermal expansion is very little in a short period of time.The abrading-ball that the die casting diameter is 80 millimeters, 50 millimeters of the diameters of depression bar, before the cast, when the concave surface minimum point of down-pressed pole and spherical minimum point overlap, the height of middle mould is 38.36 millimeters (not comprising seam sizes up and down), if last seam is high 50 millimeters, then the total height of middle mould is the 50+38.36=88.36 millimeter.When the minimum point of down-pressed pole concave surface and spherical cross central line overlapped before pouring into a mould, the height of middle mould (not comprising seam) was 80 millimeters, and establishing seam is 50 millimeters, and then the total height of middle mould is 130 millimeters.When the minimum point of down-pressed pole concave surface and spherical peak overlapped before pouring into a mould, the height of middle mould (not comprising seam) was 180.739 millimeters, and establishing seam is 50 millimeters, and then the total height of middle mould is 230.739 millimeters.The minimum point of down-pressed pole concave surface then can be calculated the size of middle Mo Genggao according to the size that exceeds on spherical peak before cast, thereby life-span of mould in can improving.50 millimeters of down-pressed pole diameters, the linear shrinkage amount was 2 percent when cast steel was made model, dying 50 millimeters, amount of contraction is 1 millimeter when solidifying to zero degree from high temperature more than 1400 ℃, 50 millimeters every limits are for being 0.5 millimeter, ingot mould according to steel mill cast iron waters full molten steel, iron has just become liquid for 1200 ℃, so can not be warmed up to (because of the absorption heat) more than 1000 ℃ in the depression bar of steel and short time that molten iron contact, and can only be to heat up in the surface, the inner intensification seldom, the steel pole that the diameter of making according to the inventor is 50 millimeters is put into ten seconds of molten steel that electric furnace is produced, take out then and measure diameter, thermal expansion is 0.1 millimeter, promptly be 50 millimeters and be increased to 50.1 millimeters, every limit is strengthened 0.05 millimeter, so iron ball that the die casting diameter is 80 millimeters, ball chamber upright opening up and down is worked into φ 50.1 to φ 50.15 millimeters (mm) and just can, and being worked into φ, depression bar just can for 49.95 to φ 50 millimeters, the space of every like this limit maximum is 0.10 millimeter, down-pressed pole experimental results show that so little space molten iron advances not go (because of once advancing to solidify), so still can be got back in the hole of counterdie behind the expanded by heating at short notice.The method of depression bar and mold alignment is that the fixing other end of depression bar is made four pressing plates, processing depression bar after can burn-oning, also but pressing plate and depression bar are cast integral body, each boring ratio depression bar on the platen is much bigger, put into depression bar in the hole of mould by the hole of platen, with bolt pressing plate on the depression bar and platen are fixed up, and then in the hole of platen, pour into a mould the LMP metal, during cast LMP metal, platen can lie in above the pressing plate (16P) (preventing that low-melting-point metal from flowing down), in order to prevent to vacuumize time gas leakage, upperpush rod be connected with down-pressed pole on, the filler (available soft graphite or other plastic materials) of plasticity is equipped with at the back side of following metal pattern, and filler is compressed (going up bolt) with pressing plate.Upper, middle and lower mould contact position band seam, seam is oblique, is circular all around, seam adds and joins the tolerance relation that makes D3 and d3 man-hour.The upper, middle and lower mould respectively has 60 to 200 holes.The weight of mould is greater than buoyancy more than 4 times in going up.All slotting the sealing ring of plasticity be housed in the seam outside of patrix and middle mould, is screwed.Aim at for the direction that guarantees the upper, middle and lower mould, locate with alignment pin on the next door of mould.Mold is provided with cast gate, and in order to guarantee to pour into a mould the molten iron of 60 to 200 iron balls (or steel ball) 1 to 4 second, the diameter of cast gate is 120 millimeters to 180 millimeters, about each one, highly be 160 millimeters to 250 millimeters.Be placed with cup at cast gate, cup is pushed down plastic tab (or thin slice of LMP metal), melts away thin slice when pour into a mould the back so that vacuumize.Counterdie is fixed on support on the base of downforce machine or on the track base.Use level meter the mould centering when mounted, make its level.The upper, middle and lower mould will fit together after seam processing, with the alignment pin location, processes each hole together, each hole is joined make the centre-to-centre spacing unanimity.Each mould casts out 4 ear handles, and ear is boring, so that each Kong Shiyong bolt locking upper, middle and lower mould of assembling processing is joined work.Molten iron carries out application of vacuum and spheroidising by shown in Figure 1 before cast, the valve of also just seizing the opportunity when this application of vacuum by flexible pipe and last metal pattern connects, and takes out the air in the metal die.Molten iron after the spheroidising is quantitatively poured into (the available electron scale weighs) in the mould, start press that the concave point lowest part of down-pressed pole is got back to spherical minimum point then and coincide, and start press, make down die casting of upperpush rod.After waiting to solidify, sling go up in mould start the downforce machine again, make down-pressed pole eject abrading-ball, and then drive into along guide rail with electromagnetic disc and to pick up abrading-ball, electromagnetic disc is withdrawn cut off the power supply and puts down iron ball, just once be cast into the abrading-ball of 60 to 200 riser-frees.Can be with the big forcing press of tonnage when die casting high-chromium cast-iron ball or die casting evanohm steel ball.
Utility model such as die casting nodular cast iron balls, volumetric expansion when solidifying because of magnesium iron, mould has enough hardness to stop expansion to change into feeding, makes the iron ball riser-free that casts out, and no shrinkage cavity makes dense structure.Because of the process application of vacuum, and take out the interior air of metal pattern, so the abrading-ball pore-free that casts out.But as die casting high-chromium cast-iron ball or evanohm cast steel ball then adopt the big forcing press of tonnage also die casting go out not have the abrading-ball of shrinkage cavity, because of machine die casting, so productivity ratio height, cost is low, the utilization rate of molten iron (or molten steel) is (manual casting or centrifugal casting are because of cast gate anyhow or water dish and go up and waste molten iron, the molten iron utilization rate is the highest has only 70 percent) absolutely.Without labor cleaning's dead head, because of the die casting nodular cast iron balls, price ratio forged steel ball per ton reduces by 600 yuan, so annual whole nation metallurgy, cement, thermal power plant popularization, economic benefit is more than 300,000,000 yuan.As die casting high chromium casting ball or evanohm cast steel ball, then saved the molten iron (molten steel) at dead head place, need not clear up dead head, economic benefit also is very big.
The structure of utility model is by following embodiment and accompanying drawing thereof, and Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 provide.
Fig. 1 to Fig. 8 describes details and the working condition according to the concrete device that the utility model proposes in detail.
This equipment comprises that automatic sealed vacuum adds magnesium and adds low rare earth processor (Fig. 1), and automatic sealed vacuum adds the forcing press up and down of magnesium processor repacking or the hydraulic press of last downforce, three moulds of upper, middle and lower (Fig. 2 A-A and Fig. 2 B-B) are arranged, shown in Figure 1 have: involutory watt (1), conical gear (2), thrust bearing (3), guide rod (4), drving sprial (5), nut (6), pallet (7), annulus (8), bell jar (9), MAG block, ferrosilicon rare earth alloy fragment (10), ladle (11), molten iron (12), left side pillar (two) (13), clad (14), crossbeam (15), push rod (16), filling material protruding core ring (17), valve (18) compresses spiral (19), cylinder (20), valve (21), valve (22), piston (23), the cylinder of blocking up (24), valve (25), gas shutoff piston (26) connects vavuum pump steel pipe (27), aspirating hole (28), soft graphite (29), right pillar (two) (30), last annulus (31), guide rail (32), panel (33), pillar (34), involutory watt (35), reductor (36), overload-release clutch (37), motor (38).Shown in Figure 2 have: upperpush rod (1a), last platen (2b), the bolt (3c) of locking depression bar, low-melting-point metal (4d), patrix (5e), vacuum pumping hole (6f), vacuum exhaust nozzle (7g), soft graphite (8h), middle mould (9l), aperture last layer special cermacis (10j) when mold materials is normal steel casting, one deck special cermacis (12l) (resistant to elevated temperatures steel alloy is the last layer pottery not) on when counterdie (11k), depression bar adopt the ordinary steel village, a wing special cermacis (13m) on spherical cavity when mold materials is normal steel casting (resistant to elevated temperatures steel alloy shouldn't this layer pottery), plastic filler (available soft graphite) (14n), hold-down bolt (15o), pressing plate (16p), down-pressed pole (17Q), following platen (18R), counterdie bearing support (both sides have) (19s), alignment pin (20t) (middle counterdie, in going up there be mould), two cups (21u), plastic tab (or LMP sheet metal) (22v), screw retention gusset (22w).Fig. 8 has stove bolt (22x) (its medium and small screw is joined work).Counterdie was equipped with four pneumatic chucking devices during Fig. 9 to Figure 10 represented, the vertical rod (32I) that is fixed on down on the modular ring is arranged, cylinder (24A), inclined plane slide block (31H) etc.
Fig. 5, Fig. 6, Fig. 7 are the thickness that stretches into mould in the height decision in ball chamber according to down-pressed pole.The abrading-ball that the die casting diameter is 80 millimeters, 50 millimeters of the diameters of depression bar, before the cast when the concave surface minimum point of down-pressed pole and the coincidence of spherical minimum point, the height of middle mould is 38.36 millimeters (the seam sizes that do not comprise top), as shown in Figure 5, the L=38.36 millimeter, the C=8.775 millimeter ,=7.1367 millimeters, when establishing the minimum point of down-pressed pole concave surface before the cast and spherical cross central line and overlapping, the height of middle mould (not comprising seam) is 80 millimeters (Fig. 6), the L=80 millimeter, C=8.775 millimeter ,=48.775 millimeters, if 50 millimeters of last seams, then middle mould total height is 130 millimeters.When the minimum point of down-pressed pole concave surface before the cast overlaps with spherical peak, the height of middle mould (not comprising seam) is 180.739 millimeters, L=180.739 millimeter ,=149.514 millimeters (Fig. 7), if 50 millimeters of last seams, then the total height of middle mould is 230.739 millimeters.Above-mentioned all is according to the spherical cap cubature formula, spherical cubature formula, and columniform cubature formula calculates.If the minimum point of down-pressed pole concave surface is when the peak of sphere is higher before the cast, the height of mould is higher in then can calculating according to formula.The life-span of mould prolongs in higher can the making of middle mould.The upright opening of middle counterdie is established the abrading-ball of 80 millimeters of die casting, then can adopt 50.1D4(+0.05); Last down-pressed pole can adopt 50d4(-0.05) see Fig. 6, A=50.1D4, B=50d4, the face that sees before is described, after depression bar is heated at short notice, still can get back in the upright opening of counterdie.When the upright opening of the depression bar on the left side of Fig. 2 to Fig. 4 and spherical cavity and upper, middle and lower mould is represented to adopt common steel, the last layer special cermacis; As when adopting resistant to elevated temperatures steel or special cermacis or cermet, surface last layer special cermacis not then.In order to take iron ball fast away, electromagnetic disc is arranged along guide rail movement, do not draw.
Quantitatively weighed after application of vacuum that molten iron and molten steel process are shown in Figure 1 and the spheroidising, (wanting preheated mold for the first time), simultaneously in this application of vacuum process, also just make flexible pipe connect valve (7g), take out the air in the mould, two iron clad water (or molten steel) weigh through accurate scale, and (the available electron scale weighs in the back, according to the abrading-ball riser-free, the weight of each what abrading-balls of cast), two iron clad water pour in the mould to two cups (21u), start the downforce machine, see Fig. 2 and shown in Figure 3, the minimum point of down-pressed pole concave surface is got back to and spherical minimum point coincidence, start the upward pressure machine simultaneously, drive 60-to 200 past pressing down of upperpush rod, when just in time being pressed onto middle mould truncated-spherical around below the curve of upperpush rod bottom cuts lid, stop to press down (see figure 3), there is seam upper, middle and lower mould contact position, mould and middle counterdie all have the ear handle for location usefulness in going up, ear on precision join and make fraising (or bore hole), with alignment pin (20t) location, mould and middle counterdie are all with the alignment pin location, so that each hole is aimed in going up.Join for seam and to make things convenient for, the upper, middle and lower mould is circular, and counterdie is fixed on the base with bearing support (19s) or is fixed on the guide rail bracket.It is flat when mould is installed with level meter water detection.Go up, middle mould around fluting, plastic filler (soft graphite) is housed (8h), use bolting.Filler (soft graphite) all is equipped with (14n) in the back side of upper die and lower die, goes up bolt (15o) with pressing plate (16p) and compresses, gas leakage when preventing to vacuumize.Two cups (21u) compress thin slice (plastics or low-melting-point metal) (22v), so that take out the gas in the mould when finding time, during cast thin slice are melted.In order to have watered molten iron in 1 to 4 second, the base diameter of cast gate is 120 to 180 millimeters, about each one, high 160 to 250 millimeters, treat molten steel solidification after, sling go up, middle mould (seeing shown in Figure 4).Start the downforce machine, drive 60 to 200 depression bars and eject abrading-ball.As die casting high-chromium cast-iron ball and non-nodular cast iron balls, then want intensified pressure, then adopt the device of counterdie in the pneumatic inclined-plane chucking of Fig. 9 to Figure 10, at the circumference of middle counterdie four positions dress pneumatic chucking devices are arranged, middle counterdie has special ring everywhere, the ring of counterdie is longer, the ring of middle mould is shorter, and the ring of middle counterdie has rectangular hole to penetrate vertical rod (32i), and vertical rod is rectangular, top 1 ° to 5 ° inclined-plane square hole is arranged, and vertical rod (32i) bottom is fixed by bolts on the ring of counterdie; Cylinder (24A) is fixed on the long ring left side of counterdie, piston (27D) (airtight and watertight padding is housed) connects piston rod (28E) in cylinder, there is the inclined-plane fixture block (31H) on 1 ° to 5 ° on top on the right side of piston rod, square hole in this fixture block and the vertical rod is joined work, and the taper pipe thread at P place and S place connects valve and flexible pipe; Compressed air enters from P before die casting, and fixture block (31H) snaps in the square hole of vertical rod; After die casting finished, compressed air entered from S, withdrawed from fixture block.
Claims (6)
1, the evacuated die-casting process equipment of riser-free abrading-ball, particularly extensive die casting is produced abrading-ball and is replaced forged steel ball, be applied to smelter ore dressing plant and cement industry, the equipment in thermal power plant, this equipment comprises: upperpush rod [1a], last platen [2b], bolt [3c], low-melting-point metal [4d], patrix [5e], vacuum pumping hole [6f], vacuum exhaust nozzle [7g], soft graphite [8h], middle mould [9i], last layer special cermacis [10j] when mold materials is normal steel casting, counterdie [11k], last layer special cermacis [12L] when depression bar adopts common iron, spherical cavity last layer special cermacis [13m] when mold materials is normal steel casting, plastic filler (available soft graphite) [14n], hold-down bolt [15o], pressing plate [16p], down-pressed pole [17Q], following platen [18R], (both sides have [19S] to the counterdie bearing support, alignment pin [20t] (middle counterdie, in going up there be mould), two cups [21u], plastic tab (or low-melting-point metal sheet) [22v], screw retention gusset [22w], the device of counterdie mainly contains vertical rod [32i] in the pneumatic inclined-plane chucking, cylinder [24A], piston [27D], piston rod [28E], fixture block [31H] is characterized in that:
On the last platen that a and upward pressure machine connect 60 to 200 upperpush rods [1a] are housed,
On the following platen that b and downforce machine connect 60 to 200 down-pressed poles [17Q] are housed,
C, upper, middle and lower mould contact position band seam, mould and middle counterdie all have the ear handle for location usefulness in going up, with alignment pin [20t] location,
D, two cups [21u] compress thin slice [22V]
E, the end of depression bar are that curve cuts lid.
F has four positions dress pneumatic chucking devices at the circumference of middle counterdie, and middle counterdie has special ring everywhere, and the annular of counterdie is longer, and the ring of middle mould is shorter,
G, the ring of middle counterdie have rectangular hole to penetrate vertical rod [32i], and vertical rod is rectangular, and 1 ° to 5 ° inclined-plane square hole is arranged above, and vertical rod [32i] bottom is fixed by bolts on the ring of counterdie, and cylinder [24A] is fixed on the left side of long ring,
H, piston [27D] connect piston rod [28E] in cylinder, and there is the inclined-plane fixture block [31H] on 1 ° to 5 ° on top on the right side of piston rod.
2, metal pattern is equipped with the filler of plasticity behind about the equipment according to claim 1, its feature.
3, equipment according to claim 1, the base diameter of two cups of its feature (21u) are 120 to 180 millimeters.
4, equipment according to claim 1 is characterized in that upper, middle and lower mould contact position band seam, and seam is oblique, is circular all around, and seam adds and joins the tolerance relation that makes D3 and d3 man-hour.
5, equipment according to claim 1 is characterized in that the p of pneumatic chucking device and the taper pipe thread at s place connect valve and flexible pipe.
6, equipment according to claim 1 is characterized in that having three moulds of upper, middle and lower, and counterdie bearing support (195) is fixed on the base or is fixed on the guide rail bracket, and each mould casts out four ear handles, and ear is boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90205352 CN2096430U (en) | 1990-04-29 | 1990-04-29 | Vacuum die-cast equipment without pouring head grinding ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90205352 CN2096430U (en) | 1990-04-29 | 1990-04-29 | Vacuum die-cast equipment without pouring head grinding ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2096430U true CN2096430U (en) | 1992-02-19 |
Family
ID=4886136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90205352 Withdrawn CN2096430U (en) | 1990-04-29 | 1990-04-29 | Vacuum die-cast equipment without pouring head grinding ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2096430U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061914C (en) * | 1992-12-24 | 2001-02-14 | 张瑞龙 | Riser-free multi-purpose equipment for casting and forging grinding ball, crankshaft, lining board and gear, etc. |
| CN103249509A (en) * | 2010-12-13 | 2013-08-14 | 丰田自动车株式会社 | Vacuum casting apparatus |
| CN103273012A (en) * | 2013-06-19 | 2013-09-04 | 浙江省机电设计研究院有限公司 | Sand lined metal mould casting wedge tool device and production method thereof |
| CN103736957A (en) * | 2013-12-26 | 2014-04-23 | 苏州三基铸造装备股份有限公司 | Vertical type pressure casting machine |
| CN105537536A (en) * | 2015-12-16 | 2016-05-04 | 无锡市永亿精密铸造有限公司 | Precision casting mold for metal ring |
| CN111168042A (en) * | 2020-01-17 | 2020-05-19 | 青岛常润新材料有限公司 | Cast iron alloy, alloy manufacturing die and method |
-
1990
- 1990-04-29 CN CN 90205352 patent/CN2096430U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061914C (en) * | 1992-12-24 | 2001-02-14 | 张瑞龙 | Riser-free multi-purpose equipment for casting and forging grinding ball, crankshaft, lining board and gear, etc. |
| CN103249509A (en) * | 2010-12-13 | 2013-08-14 | 丰田自动车株式会社 | Vacuum casting apparatus |
| CN103249509B (en) * | 2010-12-13 | 2015-05-20 | 丰田自动车株式会社 | Vacuum casting apparatus |
| CN103273012A (en) * | 2013-06-19 | 2013-09-04 | 浙江省机电设计研究院有限公司 | Sand lined metal mould casting wedge tool device and production method thereof |
| CN103736957A (en) * | 2013-12-26 | 2014-04-23 | 苏州三基铸造装备股份有限公司 | Vertical type pressure casting machine |
| CN105537536A (en) * | 2015-12-16 | 2016-05-04 | 无锡市永亿精密铸造有限公司 | Precision casting mold for metal ring |
| CN111168042A (en) * | 2020-01-17 | 2020-05-19 | 青岛常润新材料有限公司 | Cast iron alloy, alloy manufacturing die and method |
| CN111168042B (en) * | 2020-01-17 | 2021-07-23 | 青岛常润新材料有限公司 | Cast iron alloy manufacturing die |
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