CN1116566A - Informed later - Google Patents
Informed later Download PDFInfo
- Publication number
- CN1116566A CN1116566A CN94120072A CN94120072A CN1116566A CN 1116566 A CN1116566 A CN 1116566A CN 94120072 A CN94120072 A CN 94120072A CN 94120072 A CN94120072 A CN 94120072A CN 1116566 A CN1116566 A CN 1116566A
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- CN
- China
- Prior art keywords
- cleaning solution
- mentioned
- sink
- temperature
- dissolved oxygen
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid; Regenerating cleaning liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
- B08B7/026—Using sound waves
- B08B7/028—Using ultrasounds
Abstract
The invention provides an ultrasonic flash removing and washing apparatus capable of perfectly removing the flash of a work. A work 6 is immersed in the washing soln. 1 received in a washing tank 2 equipped with an ultrasonic vibrator 5. The washing soln. 1 set to such a degassed state that the amt. of dissolved oxygen is 0.01-2ppm and the temp. thereof is set to 30 deg.C or lower.
Description
The present invention relates to a kind of clean surface of the work and remove informed later simultaneously by formed fine burr such as processing this workpiece etc.
Workpiece leaves fine burr usually on workpiece after being shaped and processing, so, make final finished product to workpiece and also must remove the fine burr that retains on the workpiece.
In the prior art, the mode of removing above-mentioned fine burr is for example, workpiece to be immersed in the cleaning solution, by means of removing above-mentioned trickle burr to this cleaning solution emission ultrasonic wave in this surface of the work of washing.Such ultrasonic washing mode is to cleaning solution emission ultrasonic wave, make and produce cavity (hole) in the cleaning solution, the hole collapse time taken place in act on the surface of the work towards ripple (small injection), and wish that in order to remove above-mentioned burr above-mentioned shock wave is strong as much as possible.
The result that the inventor discusses repeatedly with regard to the generation condition in above-mentioned hole is known, the low more then easy more generation of the molten gas concentration of institute hole in the above-mentioned cleaning solution, collapse by this hole just can obtain strong shock wave, and has at first proposed to be lower than the wash mill that carries out degasification and carry out washers' part and deburring under the 0.5ppm state at the cleaning solution dissolved oxygen amount in the flat 4-41510 of real Willing number (opening flat 6-34783 number in fact).At this is as the degasification state index of cleaning solution with dissolved oxygen content.And usually in the cleaning solution dissolved gases be air because the composition of air approximately is an oxygen: 1: 4 ratio of nitrogen ≈, determine dissolved oxygen content thus, so can obtain this value from the whole quantity of dissolved gas known.
If cleaning solution is through long ultrasonic wave radiation, its dissolved oxygen amount even if carry out degasification to it this moment, also is difficult to remove above-mentioned burr just at the following state of 0.5ppm.
What the inventor had also formerly proposed the clear 62-185774 of special Willing number (spy opens flat 1-34647 number) carries out ultrasonic wave deburring wash mill being lower than under 0 ℃ the cleaning solution temperature.In this device, workpiece immersed in the cleaning solution be lower than 0 ℃ the workpiece burr is become fragile, the burr that becomes fragile can be removed fully under above-mentioned action of ultrasonic waves and clean.
Yet this only limits to the become fragile occasion of workpiece of character of sclerosis when low temperature is arranged such as plastic components, can not obtain the effect of abundant removal burr and for metal workpiece such as aluminium alloys temperature is descended.
The present invention is intended to eliminate these improper parts, provides a kind of and utilizes ultrasonic washing and can remove the workpiece burr fully, even carry out the informed later that long ultrasonic washing also can keep high deburring effect.
The inventor has confirmed that the cleaning solution temperature can rise after for a long time cleaning solution being carried out ultrasonic wave radiation.The cleaning solution temperature is high more, and the hole was difficult to collapse more when this cleaning solution was carried out ultrasonic wave radiation, also found along with the slow shock wave that produces of the collapse in hole dies down.
That is to say, site observation is found if the quantity of dissolved gas of above-mentioned cleaning solution then produces the hole difficulty after dissolved oxygen amount surpasses 2ppm, even if under the dissolved oxygen amount of above-mentioned cleaning solution is state below the 2ppm, carry out degasification, if liquid temperature surpass 30 ℃ then the hole collapse difficulty and shock wave dies down, so also be difficult to remove the burr that remains on the workpiece.
Informed later of the present invention is to have solved above-mentioned improper part according to this understanding, it is to be made of sink that holds cleaning solution and the ultrasonic vibrator that is located at this sink bottom, the informed later that washs to above-mentioned cleaning solution emission ultrasonic wave and to the workpiece that immerses in this cleaning solution from this ultrasonic vibrator, it is characterized in that, dissolved oxygen amount at above-mentioned cleaning solution is to carry out degasification under the 0.01-2ppm state, the temperature of this cleaning solution is then more than the freezing point of this cleaning solution, below 30 ℃.
Informed later of the present invention, carry out degasification in the above-mentioned scope owing to dissolved oxygen amount in cleaning solution is in, the hole generating capacity is increased, hole collapse quantity is many, because ultrasonic washing liquid temp of the present invention is in above-mentioned scope, the hole just can collapse apace.Thereby, because dissolved oxygen amount is carried out degasification to cleaning solution in above-mentioned scope, and its temperature is in above-mentioned scope, just can obtain simultaneously and both make above-mentioned hole collapse quantity many, make the sharply effect of collapse of such cavity energy again, two kinds of effects stacks just can produce powerful shock wave, and act on the surface of the work, as a result, can be clean removing attached to the foreign matter on the surface of the work, also can remove the burr that remains on the surface of the work.
When if the quantity of dissolved gas of above-mentioned cleaning solution makes dissolved oxygen amount surpass 2ppm then the hole generation difficulty can take place, again, the detergent remover in the water system since air be dissolved in the cleaning solution from the wash solution face that is conducted in the sink.Be actually and be difficult under the not enough 0.01ppm state of its dissolved oxygen amount, to carry out degasification.
When if the temperature of above-mentioned cleaning solution surpasses 30 ℃, the hole collapse then is difficult to obtain strong shock wave, also just is difficult to remove burr residual on the workpiece.In addition, if above-mentioned cleaning solution is cooled to it below freezing point, then cleaning solution freezes to immerse workpiece and also has been difficult to apply.
Informed later of the present invention also can be considered its kind way, be fed in the above-mentioned sink adjusting to the interior dissolved oxygen amount of above-mentioned scope and the cleaning solution of liquid temperature, above-mentioned sink is provided with to the cleaning solution feedway of this sink supply cleaning solution and the cleaning solution let-off gear(stand) that cleaning solution is derived in above-mentioned sink, because this cleaning solution feedway is provided with the depassing unit that makes the degasification under dissolved oxygen amount 0.01-2ppm state of this cleaning solution and makes cleaning solution more than freezing point, the cooling device that temperature below 30 ℃ is cooled off just makes the supply work of cleaning solution carry out easily.
Above-mentioned depassing unit is by the seal groove that imports above-mentioned cleaning solution and the decompressor that reduces pressure in the sealing groove is constituted, by the dissolved gas in the above-mentioned cleaning solution being discharged into in the space in the seal groove of above-mentioned decompressor decompression and degasification, need not be special, under the situation of the device of high price, just can easily become above-mentioned dissolved oxygen amount range state to above-mentioned cleaning solution degasification.
Can also the cleaning solution peripheral passage be set on above-mentioned sink, the cleaning solution that above-mentioned cleaning solution let-off gear(stand) is derived from above-mentioned sink is circulated to above-mentioned cleaning solution feedway.
So, cleaning solution just can be recycled, can maintain dissolved oxygen amount in the above-mentioned scope, and the temperature maintenance of cleaning solution in above-mentioned scope, just can prevent to cause quantity of dissolved gas to increase and the rising of liquid temperature because of long ultrasonic wave deburring washing.
When recycling cleaning solution as described above, can also on above-mentioned cooling device, be provided with temperature measuring equipment, when the cleaning solution temperature of being measured by this temperature measuring equipment both is higher than fixed temperature, make this cooling device action, can maintain the temperature of cleaning solution efficiently in the above-mentioned scope whereby.
Fig. 1 is the ideograph of the informed later schematic configuration of expression one embodiment of the invention;
Fig. 2 is the curve map of expression detersive efficiency to dissolved oxygen amount in the cleaning solution;
Fig. 3 is the curve map of expression detersive efficiency to the cleaning solution temperature.
One embodiment of the present of invention are described with reference to the accompanying drawings.Fig. 1 is the ideograph that expression present embodiment informed later summary constitutes, and Fig. 2 is the curve map of expression deburring effect to dissolved oxygen amount in the cleaning solution, and Fig. 3 is the curve map of expression deburring effect to the cleaning solution temperature.
As shown in Figure 1, the informed later of present embodiment slightly is provided with between overflow launder 3, two grooves adjacent with the sink 2 that holds cleaning solution 1 and connects with the apocenosis passage 4 that tilts.The bottom of sink 2 is provided with ultrasonic vibrator 5, to cleaning solution 1 emission ultrasonic wave the workpiece 6 that is immersed in the cleaning solution 1 is removed burr from ultrasonic vibrator 5.
Discharge upstream one side away from degasser 10 of conduit 11, be provided with the cleaning solution 1 that takes out from cleaning solution outlet 8 is imported to positive displacement pump 15 depassing unit 10, between depassing unit 10 and positive displacement pump 15, cooling device 7 that cools off cleaning solution 1 and the filter 16 of removing foreign matter in the cleaning solution 1 are set.Between the depassing unit 10 and cleaning solution supply port 9 in supplying duct 12, also be provided with the solution feed pump 17 that from depassing unit 10, takes out and be conducted to through the cleaning solution 1 of degasification in the sink 2.
The top of sink 2 is provided with upper wash liquid supply port 18, upper wash liquid supply port 18 is connected with the top supplying duct 19 that comes out from supplying duct 12 taps in the downstream that is positioned at solution feed pump 17, the bottom of sink 2 and overflow launder 3 is respectively equipped with cleaning solution and discharges conduit 20 and overflowing liquid discharge conduit 21, and they all join with discharge conduit 11.On above-mentioned each conduit, suitable flow control valve 22 is set also.
Below, the working condition of the informed later of present embodiment is described.
The cleaning solution 1 that is held in the sink 2 uses positive displacement pump 15 from 8 taking-ups of cleaning solution outlet and by cooling device 17.Cleaning solution 1 is through long-time ultrasonic wave effect, and its temperature may rise to more than 40 ℃.In this case, cleaning solution 1 can make it to be cooled to below 30 ℃ by cooling device 7.Cooling device 7 is provided with the temperature measuring equipment (not shown), can control it and just move when cleaning solution 1 surpasses 30 ℃.
Thereafter, cleaning solution 1 is by discharging conduit 11 and importing depassing unit 10 through filter 16, owing to reduce pressure with vavuum pump 14 in the inside at the seal groove 13 of depassing unit 10, cleaning solution 1 discharges institute's dissolved gases and degasification by discharge the space that has been depressurized when conduit 11 imports in the seal groove 13 in seal groove 13, becomes the state of dissolved oxygen amount 0.01-2ppm.The degasification degree of the cleaning solution of representing with above-mentioned dissolved oxygen amount 1 can be used the way change easily that changes the decompression degree in the seal groove 13 by vavuum pump 14.
Again owing in cleaning solution outlet 8 and the cleaning solution supply port 9 above-mentioned fairing is housed, just can form from cleaning solution supply port 9 to cleaning solution outlet 8, and be parallel to the laminar flow of the cleaning solution 1 in the sink 2 of ultrasonic vibrator 5 vibration planes, make to be easy to generate above-mentioned hole.
Then, workpiece 6 is immersed in the cleaning solution 1, launch ultrasonic wave from ultrasonic vibrator 5 to cleaning solution 1, workpiece 6 is washed and removes deburring, on the workpiece 6 residual burr be because of metal material is carried out machining, boring processing and attrition process etc., or glass, pottery etc. are carried out formed fine content in the manufacture processes such as machining and plastics extrusion molding, injection molding forming.The such workpiece 6 of most of occasions is miniature workpieces, and individually detersive efficiency is low, so can pack many workpiece 6 among the stainless basketry 6a into, connects basketry 6a and immerses together in the cleaning solution 1.
Though in the workpiece 6 immersion sinks 2 part cleaning solution 1 being overflowed, in above-mentioned ultrasonic wave deburring wash mill, the cleaning solution 1 that overflows can be housed in the overflow launder 3 from apocenosis passage 4 outflows.The above-mentioned cleaning solution that overflows 1 is discharged conduit 21 rows to discharging conduit 11 from overflow launder 3 by spillage, owing in cooling device 7, cool off as described above, carry out infeeding again in the sink 2 after the degasification with depassing unit 10, the liquid level of the cleaning solution 1 in the sink 2, the state of dissolved oxygen amount, temperature etc. almost is constant.
In addition, in the informed later of present embodiment, discharge conduit 20 with bottom wash liquid and the cleaning solution 1 of sink 2 bottoms is taken out to drain into discharge conduit 11, and import depassing unit 10.The part of the cleaning solution 1 of degasification is fed to the sink 2 from upper wash liquid supply port 18 as described above, thereby obtains the effect that the cleaning solution in the sink 21 is stirred, and can make the uniformity of temperature profile of cleaning solution 1.
In the cleaning solution 1 that from sink 2, takes out by above-mentioned each conduit 11,20,21, though contain the foreign matters such as burr that from workpiece 6, separate, but because in the informed later of present embodiment, between positive displacement pump 15 of discharging conduit 11 and depassing unit 10, be provided with filter 16, above-mentioned foreign matter can be removed with filter 16.
Use above-mentioned informed later when carrying out ultrasonic washing,, and its temperature just to be removed above-mentioned burr fully in time below 30 ℃ to cleaning solution 1 degasification under dissolved oxygen amount 0.01-2ppm state to residual jagged workpiece 6 (precision aluminium-alloy parts).
, be higher than in the temperature that the quantity of dissolved gas of cleaning solution 1 makes its dissolved oxygen amount surpass 2ppm or cleaning solution 1 under any situation of 30 ℃, all almost be difficult to remove the burr on the workpiece 6.
With the result of above-mentioned ultrasonic wave deburring washing be considered to since cleaning solution 1 under dissolved oxygen amount 0.01-2ppm state during degasification, in cleaning solution, can successfully produce the collapse of hole and most hole, thereby have powerful shock wave to act on to cause on workpiece 6 surfaces, and, because the temperature of cleaning solution 1 collapses the hole below 30 ℃ easily, this collapse takes place just can obtain strong shock wave sharp.
Thereby, because degasification is the dissolved oxygen amount at cleaning solution 1 is under the 0.01-2ppm state and the liquid temperature is carried out below 30 ℃, can obtain the effect that hole collapse quantity is many and this hole sharply collapses simultaneously, two kinds of effect stacks can make strong shock wave act on the surface of workpiece 6, do not say so attached to workpiece 6 lip-deep foreign matters, be easy to remove yet even formed burr is gone up on workpiece 6 surfaces.
The device of at this point using present embodiment has carried out following test, in this test, be that running water is packed in the sink 2 as cleaning solution 1, the basketry 6a of the workpiece 6 of the some that residual burr is housed is immersed in the cleaning solution 1, the temperature maintenance that at first makes cleaning solution 1 is at 30 ℃, between dissolved oxygen amount 1-9ppm, change the gaseity that removes of cleaning solution 1, removing in the cleaning solution 1 of gaseity shown in each dissolved oxygen amount, carried out ultrasonic wave deburring washing every 3 minutes, pull above-mentioned basketry 6a out after each ultrasonic wave deburring washing, to determine burr Restzustand for whole work-piece 6, its result represents with table 1, disqualification rate in the table 1 is the percentage of the number that residual burr workpiece 6 is arranged in whole work-piece 6, and table 1 result's curve as shown in Figure 2.
Table 1
| Dissolved oxygen amount (ppm) disqualification rate (%) | ????1????2????3?????4?????5?????6?????7?????8?????9 ????0????0????30????40????38????42????41????42????43 |
From table 1 and Fig. 2, judge, there is not the workpiece 6 of residual burr during with the following state degasification of dissolved oxygen amount 2ppm fully at cleaning solution 1, the workpiece 6 that removes gaseity residual burr of following time more than dissolved oxygen amount 3ppm is higher than 30%, is boundary and disqualification rate increases sharp with the gaseity that removes of dissolved oxygen amount 2ppm.
Then, make cleaning solution degasification under 0.5ppm, 1ppm, 2ppm state, the temperature of removing the cleaning solution 1 under the gaseity shown in each dissolved oxygen amount is changed from 10-60 ℃ every 5 ℃, under each liquid temperature, respectively carry out ultrasonic wave deburring in 3 minutes washing, pull above-mentioned basketry 6a out after each ultrasonic wave deburring washing, to determine that it the results are shown in the table 2 for the state of the residual burr of whole work-piece 6.Remove shown in the dissolved oxygen amount 2ppm among table 2 result in the curve map that state status then is shown in Fig. 3, at this moment, the implication of disqualification rate and table 1 situation are identical in the table 2.[table 2]
Disqualification rate (%)
| The cleaning solution temperature (℃) | ||||||||||||
| 10 | ?15 | ?20 | ?25 | ?30 | ?35 | ?40 | ?45 | ?50 | ?55 | ?60 | ||
| Dissolved oxygen concentration (ppm) | ????0.5 | 0 | ?0 | ?0 | ?0 | ?0 | ?2 | ?27 | ?47 | ?51 | ?62 | ?67 |
| ????1 | 0 | ?0 | ?0 | ?0 | ?0 | ?4 | ?35 | ?40 | ?60 | ?57 | ?58 | |
| ????2 | 0 | ?0 | ?0 | ?0 | ?0 | ?7 | ?50 | ?53 | ?59 | ?63 | ?64 | |
Show among table 2 and Fig. 3, cleaning solution 1 during degasification, if the temperature of cleaning solution 1 is below 30 ℃, does not then have the workpiece 6 of residual burr fully under dissolved oxygen amount 2ppm state, residual burr workpiece 6 is 7% in the time of 35 ℃, residual burr workpiece 6 becomes more than 50% when being higher than 40 ℃, with 30 ℃ be the boundary, disqualification rate sharply increases, from table 2 also as can be known, even be lower than at the dissolved oxygen amount of cleaning solution 1 and carry out degasification under the 2ppm state, when temperature surpasses 30 ℃, the workpiece 6 of residual burr also can occur.
So as can be known from above-mentioned test, be the following state degasification of 2ppm and wash temperature is lower than under 30 ℃ the situation at cleaning solution 1 dissolved oxygen amount, just can remove the burr of workpiece 6 fully.
Claims (5)
1. informed later, it is made of sink that fills cleaning solution and the ultrasonic vibrator that is located at this sink bottom, the work that is immersed in this cleaning solution is washed to above-mentioned cleaning solution emission ultrasonic wave from this ultrasonic vibrator, it is characterized in that: above-mentioned cleaning solution is to carry out degasification under the 0.01-2ppm state at dissolved oxygen amount, and it is above below 30 ℃ to make the temperature of this cleaning solution be in the freezing point of this cleaning solution.
2. the informed later described in claim 1, it is characterized in that above-mentioned sink is provided with supplies to cleaning solution feedway and the cleaning solution let-off gear(stand) of deriving cleaning solution from this sink in this sink to cleaning solution, and it is the depassing unit of degasification under the 0.01-2ppmu state and the cooling device that cleaning solution is cooled to the temperature below 30 ℃ more than the freezing point at dissolved oxygen amount that this cleaning solution feedway setting makes this cleaning solution.
3. the informed later described in claim 1, it is characterized in that, above-mentioned depassing unit is by the seal groove that imports above-mentioned cleaning solution and the decompressor that reduces pressure in the sealing groove is constituted, and carries out degasification by the dissolved gas of above-mentioned cleaning solution being discharged in the space in the sealing groove that has been reduced pressure by this decompressor.
4. the informed later described in claim 1 is characterized in that, is provided with the cleaning solution peripheral passage that the cleaning solution of deriving from above-mentioned sink with above-mentioned cleaning solution let-off gear(stand) is circulated in above-mentioned cleaning solution feedway.
5. the informed later described in claim 4, it is characterized in that, when above-mentioned sink was provided with above-mentioned cleaning solution peripheral passage, above-mentioned cooling device was provided with temperature measuring equipment, and this cooling device starts when the cleaning solution temperature that is recorded by this temperature measuring equipment surpasses the temperature of regulation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP277999/93 | 1993-11-08 | ||
| JP5277999A JPH07124532A (en) | 1993-11-08 | 1993-11-08 | Ultrasonic flash removing and washing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1116566A true CN1116566A (en) | 1996-02-14 |
Family
ID=17591223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94120072A Pending CN1116566A (en) | 1993-11-08 | 1994-11-07 | Informed later |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH07124532A (en) |
| KR (1) | KR950013594A (en) |
| CN (1) | CN1116566A (en) |
| MY (1) | MY131769A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001908A (en) * | 2014-05-23 | 2014-08-27 | 美诺精密压铸(上海)有限公司 | Ultrasonic casting burr removing device |
| CN106583333A (en) * | 2016-12-07 | 2017-04-26 | 贵州黎阳航空动力有限公司 | Complex pipe cavity part reverse flushing equipment and reverse flushing process thereof |
| CN107716391A (en) * | 2017-09-22 | 2018-02-23 | 河南师范大学 | A kind of processing unit for the washing of human hair wig |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007098817A (en) * | 2005-10-06 | 2007-04-19 | Star Cluster:Kk | Method of removing flash of simultaneous decoration molded article |
| KR102188350B1 (en) * | 2013-12-12 | 2020-12-08 | 세메스 주식회사 | Unit for supplying chemical, Apparatus and method for treating substrate with the unit |
| CN112871861A (en) * | 2020-12-10 | 2021-06-01 | 苏州格瑞泰克环保科技有限公司 | Oil separating and cooling device for hydrocarbon cleaning machine |
-
1993
- 1993-11-08 JP JP5277999A patent/JPH07124532A/en active Pending
-
1994
- 1994-11-07 KR KR1019940029056A patent/KR950013594A/en not_active Application Discontinuation
- 1994-11-07 CN CN94120072A patent/CN1116566A/en active Pending
- 1994-11-08 MY MYPI94002959A patent/MY131769A/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001908A (en) * | 2014-05-23 | 2014-08-27 | 美诺精密压铸(上海)有限公司 | Ultrasonic casting burr removing device |
| CN106583333A (en) * | 2016-12-07 | 2017-04-26 | 贵州黎阳航空动力有限公司 | Complex pipe cavity part reverse flushing equipment and reverse flushing process thereof |
| CN106583333B (en) * | 2016-12-07 | 2019-01-08 | 贵州黎阳航空动力有限公司 | A kind of complexity lumen class part backwashing equipment and its backwash technique |
| CN107716391A (en) * | 2017-09-22 | 2018-02-23 | 河南师范大学 | A kind of processing unit for the washing of human hair wig |
Also Published As
| Publication number | Publication date |
|---|---|
| MY131769A (en) | 2007-08-30 |
| JPH07124532A (en) | 1995-05-16 |
| KR950013594A (en) | 1995-06-15 |
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Address after: Tokyo, Japan, Japan Applicant after: S & C Co., Ltd. Address before: Tokyo, Japan, Japan Applicant before: Violet |
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