CN86208247U - Evacuated die-casting equipment for dead-head-less ductile iron ball - Google Patents
Evacuated die-casting equipment for dead-head-less ductile iron ball Download PDFInfo
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- CN86208247U CN86208247U CN 86208247 CN86208247U CN86208247U CN 86208247 U CN86208247 U CN 86208247U CN 86208247 CN86208247 CN 86208247 CN 86208247 U CN86208247 U CN 86208247U CN 86208247 U CN86208247 U CN 86208247U
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Abstract
The utility model discloses an evacuated die-casting equipment for dead-head-less ductile iron ball which belongs to the evacuated treating ductile iron by the automatic sealing machine, and the upper and lower sealing pressure machines are applied to the production for evacuated die-casting dead-head-less ductile iron, particularly, the large-scale die-casting production of the dead-head-less ductile iron balls replaces the steel balls which are applied in the devices in the metallurgy enterprises, beneficiation plants, cement industry, and thermal power plants. The upper and lower press machine of the evacuated die-casting equipment for dead-head-less ductile iron ball is connected with a pressure plate which is provided with 100 to 400 pressure bars. The pressure plate has an upper metal pattern, a middle metal pattern, and a lower metal pattern. The pressure plate has two sprues which are filled with thin films. The pressure plate has vacuum pick-up nozzles. The castings after the die-casting of the evacuated die-casting equipment for dead-head-less ductile iron ball are dead-head-less, and have no shrinkage cavity, or blowhole. The utility model saves the melted iron, solves the troubles in the cleanness of the dead-head-less castings, and improves the production of the castings.
Description
The utility model relates to automatic sealer vacuum and adds magnesium and add low rare earth and handle spheroidal graphite cast-iron, use the Foundry Production of upper-lower seal forcing press evacuated die-casting process riser-free spheroidal graphite cast-iron then, particularly the large-scale production nodular cast iron balls replaces 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 and the thermal power plant in the whole nation need steel ball more than 200,000 tons every year, the mechanical performance of spheroidal graphite cast-iron approaches steel, current steel are in short supply, the nodular cast iron balls cost is more much lower than steel ball, so replace steel ball that very big economic worth is arranged with nodular cast iron balls.But the casting nodular cast iron balls has such problem, the method of casting nodular cast iron balls according to Jinchuan company mechanical repair plant in the past is with the clamp locking mould up and down of manually tightening up a screw, the utilization rate of metal has only 60%, there is 40% iron ball that consumes 60 millimeters of on dead head diameters just to have more than 1,000 for one ton, the cleaning dead head is pretty troublesome, and the iron ball that casts out has pore, has all stopped production.
In order to promote nodular cast iron balls, 82 years 1 phases of magnesium iron magazine, (Guangdong science and technology publishing house) reported, if national cement industry all adopts nodular cast iron balls to replace steel ball, can be country every year and saved about 50,000,000 yuan, and economic benefit is very big.Zhang Ruilong is the patent to Patent Office of the People's Republic of China's application on April 1st, 85, automatically sealer die casting riser-free and cast gate magnesium iron ball (replacement steel ball) is arranged, application number 85200352, the method of die casting riser-free magnesium iron ball has been proposed, but do not solve the pore problem of eliminating, do not solve the problem that depression bar is aimed at yet, do not have to propose after iron ball ejects, to take away fast the method for hundreds of iron balls yet.Volumes such as Northeast Polytechnic College, cast iron and fusing thereof (metallurgical industry publishing house, version in 1978) are pointed out, volumetric expansion during ductile iron solidification, if casting mold has enough rigidity, the expansion that graphite generates inwardly acts on, can improve the compactness of foundry goods, eliminate shrinkage porosite, be well suited for permanent mold casting.Basic knowledge (the guangdong edition of the spheroidal graphite cast-iron that Guan Hongye etc. write, 1980) point out, agricultural machinery factory, Jiamusi, Heilungkiang, expansion is converted into the principle of feeding according to ductile iron solidification, adopts the rigidity casting mold, the success of head-free casting spheroidal graphite cast-iron, shrinkage cavity and shrinkage porosite have been eliminated, but theirs has a cast gate, and they do not solve the iron ball riser-free problem of casting out, also solves the pore problem of eliminating.Because of pouring into a mould have 30,000 of 60 millimeters of 30 tons of iron ball diameters every day, so the imperforate nodular cast iron balls of die casting riser-free is extremely to be solved.
The purpose of utility model provides the automatic sealed vacuum of spheroidal graphite cast-iron that Zhang Ruilong delivers at 83 years 2 phases new technology new technology magazine (National Defense Industry Press) and adds magnesium and add low rare earth place device, repacking becomes forcing press up and down, use in conjunction, this not only eliminates shrinkage porosite, and the spheroidal graphite cast-iron that die casting is come out is riser-free pore-free again, solved cleaning dead head difficult problem and improved quality, and solved and take problem fast away after ejecting iron ball.
Realization of the present utility model, 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, this drving sprial is the multi-head spiral that adopts oil film circulating lubricating, its spiral lead angle is 20 °～30 °, adorn 100 to 400 depression bars on the platen that connects with the upward pressure machine, adorn 100 to 400 depression bars on the platen that connects with the downforce 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.The method that depression bar and metal pattern are aimed at is that the fixing other end of depression bar is made four to six pressing plates, each boring ratio depression bar on the platen is much bigger, put into depression bar in the hole of metal pattern by the hole of platen, with screw pressing plate on the depression bar and platen are fixed up, and then in the hole of platen, pour into a mould low-melting-point metal.In order to prevent to vacuumize time gas leakage, the filler (available soft graphite or other plastic material) of plasticity is equipped with at the back side of the upper and lower metal pattern that upperpush rod and down-pressed pole connect, and filler is compressed (tightening up a screw) with pressing plate.Upper, middle and lower metal pattern contact position band seam prevents to move, and the upper, middle and lower metal pattern is a garden shape, adds to join man-hour to make D
3And d
3Tolerance relation, seam is oblique.The upper, middle and lower metal pattern respectively has 100 to 400 holes.Metal pattern and depression bar 5CrNiW steel.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.Last metal pattern is provided with cast gate, and in order to guarantee to pour 100 molten iron to 400 iron balls 1 to 4 second, the diameter of cast gate is 120 millimeters to 180 millimeters, about each 1 height be 160 millimeters to 250 millimeters.Be placed with cup at cast gate, cup is pushed down plastic tab (or thin slice of low-melting-point metal), so that melt away thin slice when vacuumizing and pouring into a mould.Following metal pattern is fixed on the base of downforce machine.Use level meter the metal pattern centering when mounted, make its level.The upper, middle and lower metal pattern will fit together each hole of processing after seam processing, each hole is joined make the centre-to-centre spacing unanimity.According to different iron balls, the height of mould garden cylindrical hole in calculating, as the iron ball of 60 millimeters of die casting diameters, the diameter of depression bar is 40 millimeters, then the height of middle mould 40 mm dias is 4 millimeters.Molten iron carries out application of vacuum and spheroidising by shown in Figure 1 before cast, the valve of also just seizing the opportunity in this application of vacuum process by flexible pipe and last metal pattern connects, and takes out the air in the metal pattern.Molten iron after the spheroidising is quantitatively poured into (the available electron scale weighs) in the metal pattern, start the upward pressure machine then, 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 iron ball, and then drive into along guide rail with electromagnetic disc and to pick up iron ball, make electromagnetic disc withdraw outage again and put down iron ball, just once be cast into 100 nodular cast iron balls to 400 riser-frees.
Volumetric expansion when utility model is solidified because of magnesium iron, metal pattern have enough hardness to stop expansion to be converted into feeding, make the iron ball riser-free that casts out, and no shrinkage cavity makes dense structure.Because of the application of vacuum of molten iron process, and taken out the interior air of metal pattern, thus the iron ball pore-free that casts out, non-scale.Because of machine die casting, so productivity ratio height, cost is low, the utilization rate of molten iron is (manual molten casting iron utilization rate is the highest has only 70 percent) absolutely, without labor cleaning's dead head, 600 yuan of magnesium iron ball valencys per ton, 1200 yuan of steel ball valencys per ton, so promote in annual whole nation metallurgy, cement, thermal power plant, economic benefit is annual more than 200,000,000 yuan.
The structure of utility model is by following embodiment and accompanying drawing thereof, and Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 provide.
Fig. 1 to Fig. 5 describes the details and the working condition of the concrete device that proposes according to the present invention in detail.
This device comprises that automatic sealed vacuum adds magnesium and adds low rare earth processor (Fig. 1), and sealed vacuum adds the forcing press up and down of magnesium processor repacking, three metal patterns of upper, middle and lower (Fig. 2) automatically.Have as shown in Figure 2: upperpush rod (1a), last platen (2b), the screw (3c) of locking depression bar, low-melting-point metal (4d), the vacuum exhaust nozzle (6f) that last metal pattern (5e) and patrix connect, plastic filler (7g), middle mould (8h), counterdie (9i), down-pressed pole (10j), following platen (11k), bearing support (12l), the hole that vacuumizes (13m), cup (14n), plastic tab (or low-melting-point metal sheet) (15o), plastic filler (available soft graphite) (16P), pressing plate (17Q), housing screw (18R) etc.Other has electromagnetic disc to move (not shown) along guide rail.
Quantitatively weighed after application of vacuum that the molten iron process is shown in Figure 1 and the spheroidising, (wanting the preheating metal pattern for the first time) is simultaneously when this application of vacuum, also just make flexible pipe connect valve (6f), take out the air of metal pattern, two iron clad water pour in the metal pattern to two cups (14n), start the upward pressure machine and drive 100 to 400 of upperpush rods (1a) toward pressing down, when around the curve of upperpush rod bottom cuts below the lid, just in time being pressed onto middle mould truncated-spherical, stop to press down (see figure 3).There is seam upper, middle and lower metal pattern contact position, prevents to move, and metal pattern is a garden shape.Counterdie is fixed on the base with bearing support (12l).Metal pattern is flat with level meter water detection when mounted.Fluting all around last, middle mould is equipped with plastic filler (7g), is screwed.The back side of upper die and lower die all be equipped with filler (16P) with pressing plate (17Q) tighten up a screw (18R) compress, prevent gas leakage.The tolerance of depression bar is d
3, the tolerance in the hole of the depression bar of metal pattern is D
3Cup compresses thin slice (plastics or low-melting-point metal) (15o), so that vacuum is taken out the gas in the metal pattern, during cast thin slice is melted away.In order to have watered molten iron in 1 to 4 second, the base diameter of cast gate is each 1 of 120 to 180 millimeter, and is high 160 to 250 millimeters.After treating molten steel solidification, sling last, middle mould start the downforce machine, drive 100 to 400 down-pressed poles and eject iron ball, make electromagnetic disc enter to pick up iron ball along track again, and electromagnetic disc withdraws from the back outage and puts down iron ball.(Fig. 5 has the dead head cast, the cleaning trouble).
Claims (8)
1, the Foundry Production of automatic gastight machine for vacuum die casting of nodular cast iron balls without gate and riser, particularly the large-scale production nodular cast iron balls replaces steel ball to be applied to smelter ore dressing plant and cement industry, the equipment in thermal power plant, this equipment has automatic sealed vacuum to add magnesium as low rare earth processor (Fig. 1), there is automatic sealed vacuum to add the forcing press up and down that magnesium adds low rare earth processor repacking, three metal patterns of upper, middle and lower have movably electromagnetic disc, see that the device of Fig. 2 has: upperpush rod [1a], last platen [2b], the screw [3c] of locking depression bar, low-melting-point metal [4d], last metal pattern [5e], vacuum exhaust nozzle [6f], plastic filler [7g], middle mould [8h], counterdie [9i], down-pressed pole [10j], following platen [11k], bearing support [12l], the hole that vacuumizes [13m], cup [14n], plastic tab (or low-melting-point metal sheet) [15o], plastic filler [16p], pressing plate [17Q], housing screws [18R] etc. is characterized in that:
On the last platen that a and upward pressure machine connect 100 to 400 upperpush rods [1a] are housed,
On the following platen that b and downforce machine connect 100 to 400 down-pressed poles [10j] are housed,
C, three metal patterns of upper, middle and lower are arranged, following metal pattern bearing support [12l] is fixed on the base,
D, forcing press up and down are the multi-head spiral forcing presses of oil film circulation,
E, the fixing other end of depression bar are made four to six pressing plates, with screw the pressing plate of depression bar and platen are fixed, and low-melting-point metal is poured into a mould in the back in the hole of platen,
F, cup [14n] compress thin slice [15o], about each one,
G, pick up movably electromagnetic disc of iron ball when having down-pressed pole to eject iron ball.
2, equipment according to claim 1 is characterized in that the casting of die casting riser-free spheroidal graphite, and during iron ball, the end of depression bar is that the ball of arc cuts lid.
3, equipment according to claim 1 is characterized in that upper, middle and lower metal pattern band seam, and metal pattern is a garden shape, and the metal pattern material is the 5GNiW steel, and metal pattern will be installed level.
4,, it is characterized in that the multi-head spiral lead angle of forcing press is 20 °～30 ° up and down according to the described equipment of claim.
5, equipment according to claim 1 is characterized in that the hole (13m) that vacuum exhaust nozzle (6f) connection vacuumizes, and takes out the air in the metal pattern in the application of vacuum molten iron.
6, equipment according to claim 1, the base diameter that it is characterized in that cast gate are 120 to 180 millimeters.
7, equipment according to claim 1 is characterized in that metal pattern back side dress plastic filler (16P) is fixed with pressing plate (17Q) screwing up and down.
8, equipment according to claim 1 is characterized in that electromagnetic disc moves along guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86208247 CN86208247U (en) | 1986-10-27 | 1986-10-27 | Evacuated die-casting equipment for dead-head-less ductile iron ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86208247 CN86208247U (en) | 1986-10-27 | 1986-10-27 | Evacuated die-casting equipment for dead-head-less ductile iron ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86208247U true CN86208247U (en) | 1988-03-16 |
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ID=4810506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86208247 Withdrawn CN86208247U (en) | 1986-10-27 | 1986-10-27 | Evacuated die-casting equipment for dead-head-less ductile iron ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86208247U (en) |
Cited By (3)
| 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. |
| CN1298462C (en) * | 2002-02-07 | 2007-02-07 | 艾思约科技有限责任公司 | Apparatus for manufacturing items made of aluminum alloys or light alloys |
| CN110142392A (en) * | 2019-05-24 | 2019-08-20 | 陈铁石 | A kind of TUBE BY LIQUID EXTRUSION manufacturing process of steel ball |
-
1986
- 1986-10-27 CN CN 86208247 patent/CN86208247U/en not_active Withdrawn
Cited By (3)
| 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. |
| CN1298462C (en) * | 2002-02-07 | 2007-02-07 | 艾思约科技有限责任公司 | Apparatus for manufacturing items made of aluminum alloys or light alloys |
| CN110142392A (en) * | 2019-05-24 | 2019-08-20 | 陈铁石 | A kind of TUBE BY LIQUID EXTRUSION manufacturing process of steel ball |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |