CN1295045C - Die casting machine with solid lubricant meter suitable for leading to phase change before lubricant being filled into injection cylinder - Google Patents
Die casting machine with solid lubricant meter suitable for leading to phase change before lubricant being filled into injection cylinder Download PDFInfo
- Publication number
- CN1295045C CN1295045C CNB02828271XA CN02828271A CN1295045C CN 1295045 C CN1295045 C CN 1295045C CN B02828271X A CNB02828271X A CN B02828271XA CN 02828271 A CN02828271 A CN 02828271A CN 1295045 C CN1295045 C CN 1295045C
- Authority
- CN
- China
- Prior art keywords
- casting machine
- die casting
- plunger
- lubricant
- meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Lubricants (AREA)
Abstract
The present invention relates to a die casting machine which comprises a meter enabling a plunger piston to be lubricated so as to undergo the phase change, wherein the meter is selectively provided with a lubricant for plunger pistons. The present invention relates to a method for lubricating a die casting machine, which relates to the implementation of the phase change in the lubricant for plunger pistons before the distribution of the lubricant for plunger pistons. The present invention also relates to a semifinished lubricant for plunger pistons, which undergoes the phase change in the meter.
Description
Technical field
The present invention relates to plunger lubricants and the application in extrusion process thereof.
Background technology
Though extrusion process is known many years, still have problems.Lasting problem relates to plunger lubricants field and other for effectively and the low-cost necessary lubricant of die-cast metal spare of making.Known lubricant has the problem of a series of environment, safety and keeping.
A die casting equipment generally includes mold and shot sleeve.The deposite metal that casts is incorporated in the shot sleeve.One plunger axis in extending to shot sleeve with the pushing molten metal in mold.This shot sleeve and plunger requirement are lubricated because molten metal energy self solid welding can produce a large amount of additional heat because of its friction shot sleeve by friction because of plunger simultaneously on shot sleeve and/or plunger.In addition, lubricant helps to prevent the inwall of the inhomogeneous friction shot sleeve of plunger.This inhomogeneous friction hinders level and smooth plunger motion, may cause the casting of inferior normality, and this must remove.
Uneven friction also causes obviously increasing to the wearing and tearing of plunger and shot sleeve and tears, and this causes increasing downtime, repair cost, even will replace plunger.
Various lubricants have been used with not too satisfied result in the past.Oil lubricant is not too favourable because be tending towards smoldering and decomposing when they contact with molten metal or owing to the shot sleeve of reusing heating.Oil lubricant needs big warehouse space because they are bulky.In addition, danger sliding and that fall if splashing to ground, oil lubricant is arranged.
Water base lubricant has avoided oil lubricant to smolder and decompose, but runs into they self shortcoming.Major defect is that water entrained before being incorporated into the deposite metal must be evaporated fully because if molten metal contacts with water and may cause violent reaction.Water base lubricant typically by blast injection in shot sleeve.Compressed air and use soundproofing structure in order to the noise requirements that produces compressed-air actuated machinery with surcharge.In addition, fluid lubricant needs pump and pipeline, and these prolongations owing to the operating period are easy to mechanical failure.Water base lubricant generally includes granular materials such as graphite or other inorganic particle, and this granular materials is tending towards being used to apply the nozzle place of lubricant or cohesion therein.This reduction is used to apply the reliability of machinery of lubricant because nozzle must periodic cleaning.In addition, the partial lubrication agent of shot sleeve may be caused by the part plug nozzle, therefore causes plunger uneven friction and subsidiary problem thereof in shot sleeve.Water base lubricant also requires big warehouse space because they are bulky.
Once used the lubricant of other type to comprise the solid of particle, powder and fragment shape.These run into the defective identical with water base lubricant.Known particle lubricant is tending towards bouncing on ground and producing danger sliding and that fall in application process.Powder and flake lubricants may require complicated additional mechanical to use to implement it, therefore make their use more expensive and labour intensity is big.And, because their this lubricants of limited availability are more expensive than water base lubricant.
In addition, all known lubricants run into serious purity problem.Known fluid lubricant is tending towards excessively splashing when using.Known powder lubricant is tending towards producing the condition of work of many dusts.In arbitrary situation, must spend a large amount of time, energy and money to keep work area clean and safety because empty lubricant container is cut off in the lubricant that splashes influence, produce offending condition of work, and have the danger of fire.
Thereby, the related process that the present inventor has recognized the need to improve the lubricant of plunger and uses those lubricants, this lubricant and technology can overcome one or more of these shortcomings.
Summary of the invention
The present invention relates to die casting machine, this die casting machine comprises the meter that makes plunger lubricants stand phase transformation.This meter plunger lubricants of also providing and delivering.The invention still further relates to a kind of method of lubrication pressure casting machine, this method relates to the phase transformation of implementing in the plunger lubricants before the dispensing plunger lubricants.The invention still further relates to the plunger lubricants semi-finished product, these semi-finished product carry out phase transformation in meter.
Description of drawings
Fig. 1 is illustrated in and wherein utilizes model casting machinery of the present invention.
The specific embodiment
With reference to Fig. 1, a die casting machine 10 comprises the cylindrical shot sleeve 12 of level.One plunger 14 is the (not shown) that is movable near the progressive position of pressing mold 16 from a retracted position in shot sleeve 12, and this retracted position as shown in Figure 1.This pressing mold 16 comprises two-half die 18 and 20, and these two half modules define a die cavity 22.This shot sleeve 12 is that fluid is communicated with this die cavity 22.
At work, in a lubricant according to the present invention is loaded into a dispenser 24.From meter 24, lubricant is incorporated in the shot sleeve 12 by plug hole 26.This be each working cycles begin finish, simultaneously plunger 14 is in its retracted position as shown in Figure 1.The deposite metal of required amount is incorporated in the shot sleeve 12 by plug hole 26 then.Plunger 14 is advanced forward towards the direction of pressing mold 16 and is blocked plug hole 26 up to it then.Its preset distance of further advancing is expelled to the deposite metal in the die cavity 22 then.After the dwell time of presetting, this time allows the deposite metal to solidify, opening of dies 16, and plunger 14 is further advanced to finish total travel then, unloads from the fixing half module 20 of pressing mold at this medium casting of advancing.This also squeezes out filler residual, that solidify from shot sleeve 12.Plunger 14 is withdrawn into the starting position and withdraws from foundry goods from the movably half module of pressing mold then.Die casting machine is ready for another circulation then.
Meter can comprise a feed bin, and plunger lubricants stored in a large number and was contained in this feed bin before dispensing.One of feed bin may illustrate with label 28 in Fig. 1 by embodiment.Can use any suitable meter, what will emphasize in the choice a bit is the amount that the plunger lubricants of measurement can be provided in not too expensive mode.In a useful embodiment, meter is the meter of hot melt.This meter can be connected on the shot sleeve at the plug hole place.Another selection, meter can separate with shot sleeve, as shown in Figure 1.
This meter can also comprise that a nozzle helps the plunger lubricants of providing and delivering.The nozzle of any pattern can be used in combination with meter.But preferred nozzle is that those produce minimum splash, the lubricant of the measured amount of providing and delivering, and also is implemented in the nozzle of shot sleeve with the form of the requirement of interior lubricant distribution simultaneously.For example, nozzle can provide drip shape, become streamline, become to scatter shape or nebulize, scatter as air atomizing.The dispensing that a series of additional elements and method can be used for promoting plunger lubricants.
Plunger lubricants can be any suitable lubricant that will make application with lubricator.The material of typical Castor Oil shot sleeve is attempted to use in composition of the present invention.Preferred plunger lubricants will be selected lower fuming and can produce more cheaply and be added in the meter with comparalive ease.A kind of preferred plunger lubricants is a kollag, and this lubricant has the fusion temperature in will using the shot sleeve operating temperature range of this lubricant.
Useful metal fatty acid salt comprises many sulfonate, naphthenate and carbonyl compound.In these metal fatty salt, lipidic acid soap (as zinc stearate and odium stearate) is considered their known features, and they are easy to obtain and low price is preferred.But the metallic stearate of other known its lubrication property comprises, only also can preferably be comprised with way of example, tin, copper, titanium, lithium, calcium, manganese and other aliphatic acid alkalescence and strong basicity rare earth metal stearate.
Also can comprise aliphatic acid, aliphatic acid than low price, be easy to obtain, with and make it attractive to the influence of the whole lubricity of goods to this application.An example is a stearic acid, and it is used easily, because it has good lubrication, nontoxic, inexpensive and be easy to obtain.
The additive of making plunger lubricants such as graphite, ceramic material materials such as (as boron nitride, silicon nitride or chromium carbides) be useful, molybdenum sulfide is also like this.
As an example, useful high melt polymer resin comprises polyethylene, polypropylene, polyvinyl chloride, polyvinyl alcohol, polyvinyl acetate cellulose, polyester, polyethylene glycol, polyacrylate, polymethylene acrylate, polystyrene, epoxy resin, silicon resin, polyamide and above-mentioned any co-polymer resin.In fact, almost can use any thermoplastic.
The polyethylene paraffin wax of the higher molecular weight of the natural and synthetic paraffin wax that can use easily considers that usually its lubricity that has is best.But polypropylene, bisamide, the little crystalline lens of ester class, beeswax, paraffin oil, oxide, composition polymer and carnallite wax also are preferred.
Useful in the present invention glass material is aluminium oxide, alumina/silica, quartz or Boratex preferably.Alternatively, these glass materials can chopped fiber form use.The compound of diatomic mineral, talcum powder, mica, other metal oxide, boric acid, wood powder and phosphorus, comprise that the ester class of phosphorus also is useful.
Plunger lubricants can be any form, shape and size of being convenient in meter to use and/or to be added in the feed bin.For example, best lubricant can be powder, particle, fragment or solid-state semi-finished product, is pipe, bar, dish or little bulk.In addition, lubricant can be the solid-state semi-finished product on the reel.According to pattern, the shape and size of selected lubricant, can use multiple manual and automatic equipment that lubricant is added in the feed bin.Preferably, plunger lubricants is a kind of solid-state semi-finished product.
At work, meter by the phase transformation that essential duty is provided causes plunger lubricants to promote the phase transformation from a kind of phase to another phase in the lubricant.Plunger lubricants at least in part, is passed through once phase-change at least after joining meter.This phase transformation takes place before plunger lubricants is provided and delivered or simultaneously.For simplicity, both of these case will be referred to as the phase change taking place prior to be dispensed.Though the lubricant of changing into liquid phase from solid phase is preferred, the lubricant of changing into solid phase from liquid phase also is available.
Although the single phase transformation of lubricant is preferred, lubricant also can carry out multiple phase transformation makes that lubricant circulates in meter between phase.In addition, lubricant can carry out the part phase transformation, make in meter and with depositing the existence two kinds of phases.Preferably, before dispensing, prepare the plunger lubricants of dispensing, promptly, have phase transformation completely basically, although do not need phase transformation completely from a kind of phase to another phase near the lubricant of nozzle.Perhaps, although when the preferably single phase of when dispensing plunger lubricants, also can provide and deliver has the plunger lubricants of two kinds of phases.This lubricant may be that melt and combination infusible material under the normal operating conditions of die casting machine.
Lubricant in meter reaches after the combination of suitable phase or phase, and meter this lubricant of providing and delivering preferably, through nozzle, is delivered in the shot sleeve.In the time of in being contained in shot sleeve and this lubricant when it is provided and delivered, can be identical or different phase.In addition, when it was contained in the shot sleeve, this lubricant also can be in the assembled state of phase.In one embodiment, this lubricant is liquid and with liquid dispensing when it is contained in the shot sleeve.In another embodiment, lubricant is solid by dispensing with liquid when it is contained in the shot sleeve.In the 3rd embodiment, lubricant has the center of solid shell carrying liqs when it is contained in the shot sleeve with liquid dispensing.In the 4th embodiment, lubricant is liquid when it is contained in shot sleeve with the combination dispensing of solid and liquid.In the 5th embodiment, it is the combination of solid and liquid during at shot sleeve that lubricant is received appearance with the combination of solid and liquid dispensing when it.This embodiment is encompassed under the die casting machine normal running conditions fusing and combination infusible material.
Although be specifically described in connection with certain specific embodiments thereof the present invention, should be appreciated that this is that the scope of appended claims should be contemplated that wide as much as possible simultaneously in mode explanation rather than restriction under the situation that prior art allows.
Claims (18)
1. die casting machine comprises:
One meter, this meter is suitable for making the plunger lubricants of first phase, at least in part, change to second phase mutually and this plunger lubricants that is suitable for providing and delivering to shot sleeve.
2. according to the die casting machine of claim 1, it is characterized in that, also comprise the shot sleeve that is suitable for accepting from the plunger lubricants of meter.
3. according to the die casting machine of claim 1, it is characterized in that first phase is a solid and second phase is a liquid.
4. according to the die casting machine of claim 1, it is characterized in that it is the plunger lubricants of second phase basically that meter is suitable for providing and delivering.
5. according to the die casting machine of claim 1, it is characterized in that meter be suitable for the providing and delivering plunger lubricants of two kinds of phases.
6. according to the die casting machine of claim 1, it is characterized in that plunger lubricants is a kind of solid semi-finished product.
7. according to the die casting machine of claim 1, it is characterized in that meter comprises that one is suitable for providing the nozzle of amount of the metering of plunger lubricants.
8. according to the die casting machine of claim 7, it is characterized in that nozzle is selected from the group that comprises the nozzle that produces the mixing of dripping shape, streamline, distribution shape or vaporific and above shape.
9. according to the die casting machine of claim 1, it is characterized in that nozzle also comprises a feed bin.
10. according to the die casting machine of claim 1, it is characterized in that plunger lubricants is suitable for, at least in part, carry out second phase transformation.
11. the method for a lubrication pressure casting machine comprises:
In plunger lubricants, carry out a kind of phase transformation; And
The dispensing plunger lubricants;
Described plunger lubricants is dispensed in the shot sleeve.
12. the method according to claim 11 is characterized in that, phase transformation is to liquid state from solid-state.
13. the method according to claim 11 is characterized in that, also is included in to carry out the phase transformation second time in the plunger lubricants.
14. the method according to claim 11 is characterized in that, the dispensing step also comprises with the mode of selecting from comprise the group of dripping a shape, streamline or the scattering plunger lubricants of providing and delivering.
15. the method according to claim 11 is characterized in that, described step of carrying out phase transformation is the fusing plunger lubricants.
16. one kind manufactures a product, comprising:
In meter, carry out the plunger lubricants raw material of at least a phase transformation at least in part.
17. the product according to claim 16 is characterized in that, described raw material comprises native paraffin or a kind of synthetic wax.
18. the product according to claim 16 is characterized in that, described raw material comprises at least a material, and this material is infusible under the normal running conditions of die casting machine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2002/005132 WO2003072283A1 (en) | 2002-02-21 | 2002-02-21 | Die casting machine with dispenser for solid lubricant, adapted to cause phase change of the lubricant prior to be dispensed to the shot sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1620347A CN1620347A (en) | 2005-05-25 |
| CN1295045C true CN1295045C (en) | 2007-01-17 |
Family
ID=27765149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02828271XA Expired - Fee Related CN1295045C (en) | 2002-02-21 | 2002-02-21 | Die casting machine with solid lubricant meter suitable for leading to phase change before lubricant being filled into injection cylinder |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1476263A1 (en) |
| JP (1) | JP2005518282A (en) |
| KR (1) | KR20050004783A (en) |
| CN (1) | CN1295045C (en) |
| AU (1) | AU2002244100A1 (en) |
| BR (1) | BR0215600A (en) |
| CA (1) | CA2477007A1 (en) |
| MX (1) | MXPA04008188A (en) |
| WO (1) | WO2003072283A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004057325A1 (en) * | 2004-11-27 | 2006-06-01 | Pfeiffer Vacuum Gmbh | Vacuum die casting process |
| DE102018109322A1 (en) * | 2018-04-19 | 2019-10-24 | Engel Austria Gmbh | Melting unit for a molding machine and molding machine |
| KR102549192B1 (en) | 2022-12-12 | 2023-06-29 | 홍환표 | Die casting device with plunger oil injection device |
| KR102619210B1 (en) | 2023-02-23 | 2023-12-28 | 박범수 | Mold device with easy replacement of core pin and extended mold life |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076339A (en) * | 1990-02-08 | 1991-12-31 | Smith John J | Solid lubricant for die casting process |
| US5154839A (en) * | 1991-01-17 | 1992-10-13 | Hanano Commercial Co., Ltd | Powder lubricant for plunger device |
| EP0394988B1 (en) * | 1989-04-25 | 1994-10-12 | Maschinenfabrik Müller-Weingarten AG | Lubrication device for an injection piston of a die casting machine |
| US5662156A (en) * | 1995-12-05 | 1997-09-02 | Freeman; Lewis Gene | Method of die casting machine lubrication with unitized lubricant |
| US5988461A (en) * | 1997-08-26 | 1999-11-23 | Aluma-Tech, Llc | Dry lube dispenser |
| CN2464481Y (en) * | 2001-02-27 | 2001-12-12 | 赵龙德 | Automatic cleaning and lubricating device for punching head of press chamber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5400921A (en) * | 1993-09-21 | 1995-03-28 | Chem-Trend Incorporated | Powdered lubricant applicator |
-
2002
- 2002-02-21 AU AU2002244100A patent/AU2002244100A1/en not_active Abandoned
- 2002-02-21 KR KR10-2004-7013062A patent/KR20050004783A/en not_active Application Discontinuation
- 2002-02-21 JP JP2003571017A patent/JP2005518282A/en active Pending
- 2002-02-21 CA CA002477007A patent/CA2477007A1/en not_active Abandoned
- 2002-02-21 WO PCT/US2002/005132 patent/WO2003072283A1/en active Application Filing
- 2002-02-21 MX MXPA04008188A patent/MXPA04008188A/en not_active Application Discontinuation
- 2002-02-21 BR BR0215600-8A patent/BR0215600A/en not_active IP Right Cessation
- 2002-02-21 EP EP02709623A patent/EP1476263A1/en not_active Withdrawn
- 2002-02-21 CN CNB02828271XA patent/CN1295045C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0394988B1 (en) * | 1989-04-25 | 1994-10-12 | Maschinenfabrik Müller-Weingarten AG | Lubrication device for an injection piston of a die casting machine |
| US5076339A (en) * | 1990-02-08 | 1991-12-31 | Smith John J | Solid lubricant for die casting process |
| US5076339B1 (en) * | 1990-02-08 | 1998-06-09 | J & S Chemical Corp | Solid lubricant for die-casting process |
| US5154839A (en) * | 1991-01-17 | 1992-10-13 | Hanano Commercial Co., Ltd | Powder lubricant for plunger device |
| US5662156A (en) * | 1995-12-05 | 1997-09-02 | Freeman; Lewis Gene | Method of die casting machine lubrication with unitized lubricant |
| US5988461A (en) * | 1997-08-26 | 1999-11-23 | Aluma-Tech, Llc | Dry lube dispenser |
| CN2464481Y (en) * | 2001-02-27 | 2001-12-12 | 赵龙德 | Automatic cleaning and lubricating device for punching head of press chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1476263A1 (en) | 2004-11-17 |
| KR20050004783A (en) | 2005-01-12 |
| MXPA04008188A (en) | 2005-05-17 |
| CA2477007A1 (en) | 2003-09-04 |
| BR0215600A (en) | 2004-12-21 |
| CN1620347A (en) | 2005-05-25 |
| WO2003072283A1 (en) | 2003-09-04 |
| AU2002244100A1 (en) | 2003-09-09 |
| JP2005518282A (en) | 2005-06-23 |
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