CN102430991B - Tweezers - Google Patents
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- CN102430991B CN102430991B CN201110266193.1A CN201110266193A CN102430991B CN 102430991 B CN102430991 B CN 102430991B CN 201110266193 A CN201110266193 A CN 201110266193A CN 102430991 B CN102430991 B CN 102430991B
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Abstract
A kind of tweezers, comprising: the first arm, being made up of non-crystaline amorphous metal at least partially of described first arm; Second arm, being made up of described non-crystaline amorphous metal at least partially of described second arm; And coupling part, described first arm is connected by described coupling part with described second arm, and the elastic limit strain of wherein said non-crystaline amorphous metal is greater than 1% and the critical dimension of described non-crystaline amorphous metal is greater than 1 millimeter.According to the tweezers of the embodiment of the present invention, there is high resiliency and high strength, and production technology is simple, complicated structure can be had, ensure high precision and uniformity simultaneously.
Description
Technical field
The present invention relates to a kind of tweezers.
Background technology
Tweezers are a kind of conventional aids, are used for gripping object accurately and conveniently.
Traditional tweezers are made by the even wooden material of carbon steel, spring steel, stainless steel, plastics usually.Carbon steel and spring steel can provide good intensity and elastic deformation, but poor in Anticorrosive Character, the medical instructions for use of the thermophilic digestion sterilization that is such as difficult to satisfy the demand.Carry out coating process in order to anticorrosion traditionally, but on the one hand coating easily comes off, add cost on the other hand, and carbon steel and spring steel is difficult to the tweezers of molding structure complexity and cost is very high.Although stainless steel has good corrosion resistance, elastic deformation is low, and elastic limit distortion only less than 0.5% dependent variable, therefore easily there is plastic deformation and the result of use that reduces tweezers even lost efficacy.Although plastics are with low cost and can prepare arbitrary shape, the intensity of tweezers is low, wears no resistance and is easy to damage.
Summary of the invention
The present invention is intended at least one of solve the problems of the technologies described above.For this reason, one object of the present invention is to propose a kind of tweezers, and these tweezers have high resiliency, high strength and be easy to manufacture, and these tweezers can have labyrinth and have high accuracy and high uniformity.
According to the tweezers of the embodiment of the present invention, comprising: the first arm, being made up of non-crystaline amorphous metal at least partially of described first arm; Second arm, being made up of described non-crystaline amorphous metal at least partially of described second arm; And coupling part, described first arm is connected by described coupling part with described second arm, and the elastic limit strain of wherein said non-crystaline amorphous metal is greater than 1% and the critical dimension of described non-crystaline amorphous metal is greater than 1 millimeter.
According to the tweezers of the embodiment of the present invention, there is high resiliency and high strength, and production technology is simple, complicated structure can be had, ensure high precision and uniformity simultaneously.
In an embodiment of the invention, described first and second arms are made by described non-crystaline amorphous metal.
In an embodiment of the invention, the remainder of described first arm and the second arm and described coupling part are formed by dissimilar materials.
In an embodiment of the invention, described dissimilar materials is one or more the combination in ferrous metal, non-ferrous metal, plastics, rubber and wooden material.
In an embodiment of the invention, in described non-crystaline amorphous metal containing the crystalline phases being less than 10% (percentage by volume).
In an embodiment of the invention, the elastic limit strain of described non-crystaline amorphous metal is greater than 1.5%.
In an embodiment of the invention, the elastic modelling quantity of described non-crystaline amorphous metal is less than 130GPa.
In an embodiment of the invention, the yield strength of described non-crystaline amorphous metal is greater than 1000MPa.
In an embodiment of the invention, described non-crystaline amorphous metal has the Vickers hardness number of at least 4.5GPa.
In an embodiment of the invention, described non-crystaline amorphous metal is the non-crystaline amorphous metal with acid-fast alkali-proof corrosion resistance.
In an embodiment of the invention, the chemical composition of described non-crystaline amorphous metal is: Zr
acu
bal
cni
dm
e, wherein M represents the combination of one or more elements in Fe, Co, Mn, Cr, Ti, Hf, Ta, Nb, C and rare earth element, and a, b, c, d, e represent atomic percentage, 40≤a≤70,15≤b≤35,5≤c≤15,5≤d≤15,0≤e≤5, and a+b+c+d+e=100.
In an embodiment of the invention, the impurity element within 2% (atomic percentage) is contained in described non-crystaline amorphous metal.
In an embodiment of the invention, the part formed by described non-crystaline amorphous metal at least described first arm and the second arm is through chemistry or electrochemical passivation process.
In an embodiment of the invention, described tweezers are made by one or more combinations in casting, hot-forming, machining, bonding, mechanical connection.
In an embodiment of the invention, described tweezers are Medical forceps.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of the tweezers according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below with reference to Fig. 1, the tweezers according to the embodiment of the present invention are described.As shown in Figure 1, tweezers comprise the first arm 1, second arm 2 and coupling part 3 according to an embodiment of the invention.First arm 1 is connected by coupling part 3 with the second arm 2.Be understandable that, the division of the above-mentioned feature to tweezers is only used to describe conveniently, such as coupling part 3 also can be regarded as and is made up of a part for a part for the first arm 1 and the second arm 2, in other words, one end (right-hand member in Fig. 1) of the first arm 1 is connected with one end (right-hand member in Fig. 1) of the second arm 2.
Can being made up of non-crystaline amorphous metal at least partially of at least partially with the second arm 2 of the first arm 1, such as, first arm 1 and the second arm 2 are supported by non-crystaline amorphous metal for the free end of holding articles, and the elastic limit strain of described non-crystaline amorphous metal is greater than 1% and the critical dimension of described non-crystaline amorphous metal is greater than 1 millimeter.
Tweezers according to an embodiment of the invention, first arm 1 and the second arm 2 have the feature of high resiliency and high strength, first arm 1 and the second arm 2 do not have plastic deformation for the part clamped, and be easy to manufacture according to the tweezers of the embodiment of the present invention and complicated structure can be had, precision is high, and uniformity is good.
According to the tweezers of the embodiment of the present invention, the remainder (such as the link of the contiguous coupling part of the first arm 1 and the second arm 2) of the first arm 1 and the second arm 2 and coupling part 3 can be formed by dissimilar materials.Thus, both can realize the first arm 1 and the second arm 2 for the high resiliency of the part of holding articles and high strength, and made the remainder of coupling part 3 and the first arm 1 and the second arm 2 by dissimilar materials, the cost of manufacture of tweezers can be reduced.
It is to be appreciated that in description in the present invention, term " dissimilar materials " refers to the material compared with non-crystaline amorphous metal with obvious attribute (material and/or chemical property) difference.Such as, in some embodiments of the invention, dissimilar materials can be one or more the combination in ferrous metal, non-ferrous metal, plastics, rubber and wooden material.
Be understandable that, in process of production, the size forming the first arm 1 of tweezers and the non-crystaline amorphous metal parts of the second arm 2 is greater than the critical dimension of non-crystaline amorphous metal, and therefore non-crystaline amorphous metal there will be crystalline phases.In some embodiments of the invention, can containing the crystalline phases being less than 10% (percentage by volume) in described non-crystaline amorphous metal, generate control overflow thus and reduce, cost reduces, and can not affect the performance of tweezers.
Preferably, in order to more be suitable for manufacturing tweezers, the elastic limit strain of described non-crystaline amorphous metal is greater than 1.5%, and elastic modelling quantity is less than 130GPa, and yield strength is greater than 1000MPa, can have the Vickers hardness number of at least 4.5GPa in addition.
Can be Medical forceps according to tweezers of the present invention, thus, preferably, described non-crystaline amorphous metal be the non-crystaline amorphous metal with acid-fast alkali-proof corrosion resistance.
According to the embodiment of the present invention, the chemical composition of described non-crystaline amorphous metal is: Zr
acu
bal
cni
dm
e, wherein M represents the combination of one or more elements in Fe, Co, Mn, Cr, Ti, Hf, Ta, Nb, C and rare earth element, and a, b, c, d, e represent atomic percentage, 40≤a≤70,15≤b≤35,5≤c≤15,5≤d≤15,0≤e≤5, and a+b+c+d+e=100.This non-crystaline amorphous metal can meet the corrosive requirement of acid-fast alkali-proof, can meet the requirement of above-mentioned elastic limit strain, elastic modelling quantity, yield strength and hardness simultaneously, be particularly suitable for thus manufacturing the tweezers according to the embodiment of the present invention.
According to embodiments of the invention, in order to be conducive to production control and reduce production cost, can contain other impurity elements in non-crystaline amorphous metal, the content of impurity element is less than 2% (atomic percentage), such as, described impurity element can be the elements such as Si, P, Be, Mg, B, O.
It is known that iron, aluminium can dissolve very soon in rare HNO3 or rare H2SO4, but dissolution phenomena almost stopped completely in dense HNO3 or dense H2SO4, and carbon steel is easy to get rusty usually, if add appropriate Ni, Cr in steel, just becomes stainless steel.Metal or alloy affects by some factors, the phenomenon that chemical stability obviously strengthens, and is called passivation.By the metal passivation phenomenon caused by some passivator (chemicals), be called chemical passivation.As the oxidant such as dense HNO3, dense H2SO4, HClO3, K2Cr2O7, KMnO4 all can make metal passivation.When electrochemical passivation is anode polarization, the current potential of metal changes and forms metal oxide or salt at the electrode surface.These materials closely cover to be become passivating film on the metal surface and causes metal passivation.Present inventor studies discovery, due to the element usually containing the easy passivation such as zirconium, nickel, aluminium in non-crystaline amorphous metal of the present invention, the method alloy of chemical passivation or electrochemical passivation can be adopted to carry out Passivation Treatment, thus the antiseptic property of non-crystaline amorphous metal tweezers can be improved further, meanwhile, can also prevent or greatly slow down the electrochemical corrosion produced when being connected with dissimilar materials.
In some embodiments of the invention, described tweezers can be made by one or more in casting, hot-forming, machining, bonding, mechanical connection.
To be made up of non-crystaline amorphous metal with the first arm 1 and the second arm 2 below and coupling part 3 is made for example by stainless steel describes according to the tweezers of the embodiment of the present invention process by casting.
First, provide the prefabricated component be made up of stainless steel material as coupling part 3.
Then mould is put in coupling part 3, the non-crystaline amorphous metal being heated to more than its fusing point is cast in mould, wherein the forming temperature of non-crystaline amorphous metal melt is higher than the fusing point predetermined value of stainless steel material, such as higher than 15% of stainless steel material fusing point, non-crystaline amorphous metal melt can soften when entering mold cavity and contacting with stainless steel material or melt the surface of coupling part 3, namely melting welding can occur between non-crystaline amorphous metal and stainless steel material.In describing the invention, forming temperature refers to that a kind of melt of material enters temperature when contacting with the die cavity wall of the another kind of material in mold cavity or mould in mold cavity.Be understandable that, in actual applications, when tweezers have Complex Product Structure, non-crystaline amorphous metal melt temperature when entering in mould is pockety, temperature when therefore contacting with prefabricated component is also different, therefore mold flow analysis or other temperature test can be carried out according to the initial temperature of the structure of tweezers, non-crystaline amorphous metal melt and the profiling temperatures in mould, analyze melt Temperature Distribution in a mold, the forming temperature of regional or point in mould for confirmation.According to soldering theory, can form melting welding structure when welding body and welded body is all in molten condition and chemical reaction occurs, welding body needs the latent heat of fusion in melting process, therefore needs enough energy.Present inventor studies discovery, because non-crystaline amorphous metal has high chemism, when non-crystaline amorphous metal melt temperature is higher than stainless steel material fusing point predetermined value, namely the latent heat of fusion of stainless steel material is provided and forms stable fusion welded zone with stainless steel material generation chemical reaction.
Finally, the stainless steel after combining with the critical cooling rate cooling being greater than non-crystaline amorphous metal and non-crystaline amorphous metal, thus obtain tweezers.
But be understandable that, tweezers according to the present invention are not limited to be manufactured by casting.Such as, the first arm 1 and the second arm 2 can be manufactured with non-crystaline amorphous metal, then make coupling part with plastics, rubber or timber, finally the first arm 1 and the second arm 2 to be bondd with coupling part or mechanically coupled together.
According to the tweezers of the embodiment of the present invention, compared with traditional tweezers, first arm 1 and the second arm 2 have larger elastic deformation, and can not plastic deformation be there is, it is known that, tweezers are by the relative motion of the first arm 1 and the second arm 2 and utilize the elastic deformation gripping object of material, if the first arm 1 and the second arm 2 bear excessive load exceed elastic limit strain first arm 1 of material and the second arm 2 there will be permanent plastic deformation, i.e. irrecoverable distortion, now the first arm 1 and the second arm 2 can reduce the function of tweezers gripping object owing to not resetting or cause disabler, tweezers according to the present invention improve elastic deformation and the yield strength of the first arm 1 and the second arm 2, thus improve the service life of tweezers, table 1 shows the material of traditional tweezers and the performance comparison according to the tweezers material of the embodiment of the present invention.
Table 1
| Material | Stainless steel | Spring steel | Carbon steel | Non-crystaline amorphous metal |
| The trade mark | 1Cr 17Ni 7(Y) | 55Si 2Mn | 60 | Zr 52Al 10Cu 30Ni 7 |
| Hv(GPa) | 4.3 | 3.2 | 2.3 | 4.8 |
| Yield strength (MPa) | 1030 | 1177 | 400 | 2000 |
| Elastic modelling quantity (Gpa) | 200 | 200 | 200 | 100 |
| Elastic limit (%) | 0.5 | 0.59 | 0.2 | 2 |
| Plastic deformation | Have | Have | Have | Nothing |
As can be seen from Table 1, according to the tweezers of the embodiment of the present invention, there is higher hardness, high hardness can slow down the fretting wear that tweezers produce when long-term gripping object greatly, the contact surface of tweezers gripping object has certain roughness, so that better gripping object, in Long-Time Service, contact surface can produce wearing and tearing, thus affects the effect of gripping object and the degree of accuracy of gripping object.Non-crystaline amorphous metal for the manufacture of the tweezers according to the embodiment of the present invention has the yield strength higher than traditional tweezers material, thus allows user can use larger gripping power gripping object, thus improves gripping effect.Non-crystaline amorphous metal for the manufacture of the tweezers according to the embodiment of the present invention has and has lower elastic modelling quantity than traditional tweezers material, low elastic modelling quantity can make the first arm 1 and the second arm 2 can make move toward one another under lower load-up condition, thus reduce the power of staff applying, user can be allowed to have comfortable use sense.Non-crystaline amorphous metal for the manufacture of the tweezers according to the embodiment of the present invention has the elastic deformation higher than traditional tweezers material, the distortion of its elastic limit is 2 times even higher of traditional tweezers material, thus allow the first arm 1 of tweezers and the second arm 2 can do wider distortion, and can not under low stress condition, namely can there is plastic deformation as traditional tweezers material and have a strong impact on the gripping function of tweezers.
The tweezers that the employing non-crystaline amorphous metal of the embodiment of the present invention is made, first arm 1 and the second arm 2 can have higher acid-fast alkali-proof corrosion resistance, when gripping object, first arm 1 and the second arm 2 meeting and object contact of tweezers, when object has acidity, alkalescence and severe corrosive, the such as mordant absorbent cotton of gripping in medical environment, or gripping has the test material of strong acid or highly basic in experimental situation, table 2 shows with according to the tweezers of the embodiment of the present invention and the corrosion rate of tweezers in different etchant solution prepared with conventional stainless steel.
Particularly, by Zr
52al
10cu
30ni
7proportioning prepares non-crystaline amorphous metal, is adopted by non-crystaline amorphous metal the mode of die casting directly to prepare non-crystaline amorphous metal tweezers as shown in Figure 1, removes the mouth of a river and overlap, obtain final products, i.e. embodiment A.
Adopt steel plate punching press and forging molding the first arm 1 and the second arm 2 as shown in Figure 1 respectively, then the first arm 1 and the second arm 2 are welded formation tweezers, obtain final products, i.e. comparative example.
In addition, the H of 10 moles/L is prepared
2sO
4solution, the tweezers in kind obtained with embodiment A are carried out Passivation Treatment, and passivation time is 10 minutes, and temperature is room temperature, obtains final products, i.e. Embodiment B.
Prepare NaCl, HNO as shown in table 2 respectively
3, H
2sO
4, NaOH corrosive water solution, put into 4 kinds of aqueous solution successively after being weighed by the above two kinds of tweezers prepared and carry out corrosion reaction, then take out cleaning, drying test weight, respectively calculate corrosion rate list in table 2.
Table 2
As can be seen from Table 2, the tweezers decay resistance that the tweezers prepared according to the non-crystaline amorphous metal of the embodiment of the present invention are prepared than traditional stainless steel material is more superior, no matter under strong acid or the environment of highly basic, its corrosion rate is starkly lower than the tweezers of stainless steel, corrosion rate wherein in salting liquid and strong base solution is low 1 to 2 orders of magnitude especially, therefore have better anti-corrosive properties according to the tweezers of the embodiment of the present invention.Meanwhile, non-crystaline amorphous metal, after persulfuric acid passivation, owing to producing passivating film after passivation, has better corrosion resistance according to the tweezers of the embodiment of the present invention as can be seen from Table 2.
Along with the shape of tweezers and structural requirement become increasingly complex, more and more higher to the required precision of tweezers, adopt steel prepare tweezers usually adopt punching press, forging, welding method be prepared, tweezers for complexity can only adopt multiple parts to be assembled, therefore complex procedures, is difficult to ensure assembly precision; According to the tweezers of the embodiment of the present invention, simpler operation can be adopted to obtain high-precision tweezers.As mentioned above, according to the tweezers of the embodiment of the present invention can adopt casting (such as compression casting), hot-forming, bonding with mechanical connection mode carry out.Conventional tweezers are prepared from owing to usually adopting steel, are difficult to complete manufacture with die cast, and machining accuracy is difficult to ensure, rough surface affects presentation quality.
Table 3 shows and contrasts according to the tweezers of the embodiment of the present invention and the manufacturing process of conventional antimagnetic type tweezer.
Table 3
As can be seen from Table 3, according to the tweezers of the embodiment of the present invention, there is less production process, lower manufacturing cost, and the overall dimensional accuracy manufactured 1 to 2 orders of magnitude higher than conventional antimagnetic type tweezer.Because the tweezers according to the embodiment of the present invention can adopt the mode that die cast is shaping or metal pattern is hot-forming, the structure of tweezers and precision then can be decided by the complexity of mould and precision, therefore the result of tweezers can be complicated and accurate, can assist for more complicated structure and carry out in mode that is bonding and mechanical connection, to obtain complexity, precision, attractive in appearance, applicable tweezers.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (14)
1. tweezers, is characterized in that, comprising:
First arm, being at least made up of non-crystaline amorphous metal for the free end of holding articles of described first arm;
Second arm, being at least made up of described non-crystaline amorphous metal for the free end of holding articles of described second arm; With
Coupling part, described first arm is connected by described coupling part with described second arm,
The elastic limit strain of wherein said non-crystaline amorphous metal is greater than 1% and the critical dimension of described non-crystaline amorphous metal is greater than 1 millimeter,
Wherein, the part formed by described non-crystaline amorphous metal at least described first arm and the second arm is through chemistry or electrochemical passivation process.
2. tweezers as claimed in claim 1, it is characterized in that, described first and second arms are made by described non-crystaline amorphous metal.
3. tweezers as claimed in claim 1, it is characterized in that, remainder and the described coupling part of described first arm and the second arm are formed by dissimilar materials.
4. tweezers as claimed in claim 3, it is characterized in that, described dissimilar materials is one or more the combination in ferrous metal, non-ferrous metal, plastics, rubber and wooden material.
5. tweezers as claimed in claim 1, is characterized in that, containing the crystalline phases being less than 10% with volume percent in described non-crystaline amorphous metal.
6. tweezers as claimed in claim 1, it is characterized in that, the elastic limit strain of described non-crystaline amorphous metal is greater than 1.5%.
7. tweezers as claimed in claim 1, it is characterized in that, the elastic modelling quantity of described non-crystaline amorphous metal is less than 130GPa.
8. tweezers as claimed in claim 1, it is characterized in that, the yield strength of described non-crystaline amorphous metal is greater than 1000MPa.
9. tweezers as claimed in claim 1, it is characterized in that, described non-crystaline amorphous metal has the Vickers hardness number of at least 4.5GPa.
10. tweezers as claimed in claim 1, it is characterized in that, described non-crystaline amorphous metal is the non-crystaline amorphous metal with acid-fast alkali-proof corrosion resistance.
11. tweezers as claimed in claim 1, it is characterized in that, the chemical composition of described non-crystaline amorphous metal is: Zr
acu
bal
cni
dm
e, wherein M represents the combination of one or more elements in Fe, Co, Mn, Cr, Ti, Hf, Ta, Nb, C and rare earth element, and a, b, c, d, e are atomic percentage, 40≤a≤70,15≤b≤35,5≤c≤15,5≤d≤15,0≤e≤5, and a+b+c+d+e=100.
12. tweezers as claimed in claim 11, is characterized in that, contain in the impurity element within atomic percentage 2% in described non-crystaline amorphous metal.
13. tweezers as claimed in claim 1, is characterized in that, described tweezers are made by one or more combinations in casting, hot-forming, machining, bonding, mechanical connection.
14. tweezers according to any one of claim 1-13, it is characterized in that, described tweezers are Medical forceps.
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| CN201110266193.1A CN102430991B (en) | 2011-09-08 | 2011-09-08 | Tweezers |
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|---|---|---|---|
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| CN102430991B true CN102430991B (en) | 2016-01-13 |
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|---|---|---|---|---|
| EP0517094A3 (en) * | 1991-05-31 | 1994-05-25 | Tsuyoshi Masumoto | Forming process of amorphous alloy material |
| US5896642A (en) * | 1996-07-17 | 1999-04-27 | Amorphous Technologies International | Die-formed amorphous metallic articles and their fabrication |
| CN1564875A (en) * | 2001-09-07 | 2005-01-12 | 液态金属技术公司 | Method of forming molded articles of amorphous alloy with high elastic limit |
| CN201158012Y (en) * | 2008-02-13 | 2008-12-03 | 徐月春 | Medical tweezer with hole making drill for medicine bottle aluminum cap |
| CN201201195Y (en) * | 2008-01-14 | 2009-03-04 | 东莞市问鼎静电科技有限公司 | Ultra-clean antistatic tweezers |
| CN201573128U (en) * | 2009-12-31 | 2010-09-08 | 李娟� | Tweezers for conveniently and safely disinfecting perineum |
| CN201950586U (en) * | 2010-12-28 | 2011-08-31 | 中国航空工业标准件制造有限责任公司 | Forceps provided with baffle plate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH042735A (en) * | 1990-04-19 | 1992-01-07 | Honda Motor Co Ltd | Manufacture of sintered member made of amorphous alloy |
| JP2005506116A (en) * | 2001-03-07 | 2005-03-03 | リキッドメタル テクノロジーズ，インコーポレイティド | Cutting tool with sharp edge |
-
2011
- 2011-09-08 CN CN201110266193.1A patent/CN102430991B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0517094A3 (en) * | 1991-05-31 | 1994-05-25 | Tsuyoshi Masumoto | Forming process of amorphous alloy material |
| US5896642A (en) * | 1996-07-17 | 1999-04-27 | Amorphous Technologies International | Die-formed amorphous metallic articles and their fabrication |
| CN1564875A (en) * | 2001-09-07 | 2005-01-12 | 液态金属技术公司 | Method of forming molded articles of amorphous alloy with high elastic limit |
| CN201201195Y (en) * | 2008-01-14 | 2009-03-04 | 东莞市问鼎静电科技有限公司 | Ultra-clean antistatic tweezers |
| CN201158012Y (en) * | 2008-02-13 | 2008-12-03 | 徐月春 | Medical tweezer with hole making drill for medicine bottle aluminum cap |
| CN201573128U (en) * | 2009-12-31 | 2010-09-08 | 李娟� | Tweezers for conveniently and safely disinfecting perineum |
| CN201950586U (en) * | 2010-12-28 | 2011-08-31 | 中国航空工业标准件制造有限责任公司 | Forceps provided with baffle plate |
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| Publication number | Publication date |
|---|---|
| CN102430991A (en) | 2012-05-02 |
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