CN100523058C - Metallic tantalum, special-purpose grinding fluid for alloy of the same and preparation method thereof - Google Patents
Metallic tantalum, special-purpose grinding fluid for alloy of the same and preparation method thereof Download PDFInfo
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- CN100523058C CN100523058C CNB2007100999434A CN200710099943A CN100523058C CN 100523058 C CN100523058 C CN 100523058C CN B2007100999434 A CNB2007100999434 A CN B2007100999434A CN 200710099943 A CN200710099943 A CN 200710099943A CN 100523058 C CN100523058 C CN 100523058C
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- abrasive material
- fat
- paraffin
- kerosene
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Abstract
The invention discloses a grinding liquid of tantalum and its alloy and making method in the precise mechanical polishing domain, which comprises the following parts: 25% even composition of grinding material and composite grease, 25% vegetable oil and 50% kerosene, wherein the bulk rate of grinding material and composite grease is 1: 1; the composite grease is composed of 45% stearic particle, 40% paraffin and 15% beeswax when the environmental temperature is over 20 deg. c or 40% stearic particle, 45% paraffin and 15% beeswax when the environmental temperature is below 20 deg. c. The preparing method of grinding liquid comprises the following steps: heating the allocated composite grease to fusion; filtering; adding the grinding material, vegetable oil and kerosene sequently and proportionally.
Description
Technical field
The present invention relates to a kind of mechanical mill with special-purpose mixed grinding liquid, is that the precision optical machinery of metal tantalum and alloy thereof grinds special-purpose grinding fluid, also is applicable to the kin soft metal of abrasive substance.This lapping liquid is applicable to industries such as aerospace manufacturing engineering and machinofacture.
Background technology
In mechanical mill and other grinding technics, often can use lapping liquid and lapping paste.What dry grinding was used is lapping paste, and what wet grinding was used is lapping liquid.The effect of lapping liquid is to make abrasive material to be evenly distributed on the surface of abrasive tool, and abrasive material can be cut workpiece surface simultaneously.Simultaneously, effects such as that lapping liquid also plays is lubricated, cooling and chemical membrane, what promote to grind carries out smoothly, improves grinding effect.
Do not contain abrasive material in the at present conventional lapping liquid, during actual attrition process, abrasive material must be embedded in the low lap tool of hardness ratio workpiece hardness earlier, between lap tool and workpiece, add lapping liquid during grinding, make abrasive material uniform to carry out attrition process.Make when grinding in this way, to the requirement of lap tool than higher.Mainly show: lap tool hardness will be lower than workpiece hardness; Material is tight; Has good abrasion resistance; Enough rigidity.Therefore, when using conventional lapping liquid to grind, can be subjected to the restriction of above-mentioned condition, thereby finally have influence on the effect of attrition process.In addition, because conventional lapping liquid is not that the composition of its lapping liquid and proportioning can not well satisfy the requirement of attrition process at concrete a certain class material, the precision and the efficiency ratio of attrition process are relatively poor.
Special-purpose grinding fluid of the present invention has then solved the problems referred to above effectively.At the characteristics of material, optimize the composition and the proportioning of lapping liquid, and added the abrasive material of suitable tantalum and alloy grinding thereof, adopt different attrition process modes.The lapping mode corresponding with special-purpose grinding fluid is: lap tool adds that by grinding basal disc saving the abrasive material device replaces, and abrasive material joins and saves in the abrasive material device during grinding, puts workpiece again and grinds.In addition, as long as change the abrasive material in the lapping liquid into more fine-grained abrasive material of the same race, just can being used for more, the metal tantalum and the alloy thereof of high-precision requirement grind.
Summary of the invention
The object of the invention is can not well satisfy the requirement of processing and a kind of special-purpose grinding fluid of developing at common grinding liquid in the precision optical machinery grinding of metal tantalum and alloy thereof.Tantalum and alloy thereof are because its distinctive physical and chemical performance has obtained application widely, yet unmanageable problem has limited the application of this class material, particularly in fields such as defence and military and aerospace.The present invention can greatly improve the suface processing quality and the working (machining) efficiency of materials such as tantalum and alloy thereof.
Metal tantalum of the present invention and special-purpose grinding fluid for alloy thereof, it is characterized in that: including the abrasive particle diameter is green SiC abrasive material, mixing fat, kerosene and the vegetables oil of 3.5 μ m～5 μ m, the proportioning of each composition is: volume ratio is 25% abrasive material and the uniform mixture that mixes fat, 25% vegetables oil, 50% kerosene, wherein, abrasive material is 1:1 with the volume ratio of mixing fat;
The preparation that mixes fat has two kinds of selections according to adding the envrionment temperature in man-hour: when envrionment temperature was higher than 20 ℃, mixing fat was that 45% stearic acid particle, 40% paraffin and 15% beeswax heat fused are mixed and made into by mass ratio; When envrionment temperature was lower than 20 ℃, mixing fat was that 40% stearic acid particle, 45% paraffin and 15% beeswax heat fused are mixed and made into by mass ratio.
Lapping liquid mainly plays grinding cutting, lubricated and cooling effect, and makes abrasive particle be evenly distributed on the lap tool surface.According to the characteristics of tantalum material, the lapping liquid composition includes: granularity is the green SiC abrasive material (abrasive particle diameter 3.5 μ m～5 μ m) of W5; Mix fat; Kerosene; Vegetables oil.Wherein, abrasive material plays the grinding cutting effect; Mix fat and be mainly used to wrap up abrasive particle, prevention abrasive material rapid precipitation, absorption, lubricated and chemical action; Kerosene is used for cooling off, the dilution abrasive material; Vegetables oil is mainly used to cooling, lubricated and uniform abrasive material.At first will mix the fat heating during preparation, and mix with abrasive material, ratio evenly wraps abrasive material with mixing fat and is advisable.Then, again it is mixed in the ratio (volume ratio) of 1:1:2 with vegetables oil, kerosene, stir, make the desired lapping liquid of their melt intos.The preparation that mixes fat is with stearic acid particle (C
17H
35COOH), paraffin (cedar seed oil), beeswax mixes after in the ratio heat fused in the table 1, must can use after filtration after the mixing.
The preparation method of described metal tantalum and special-purpose grinding fluid for alloy thereof is characterized in that, may further comprise the steps:
1. when envrionment temperature is higher than 20 ℃, be 45% stearic acid particle, 40% paraffin and 15% beeswax heating with mass ratio, to melt-blended getting final product, filter standby then;
When envrionment temperature is lower than 20 ℃, be 40% stearic acid particle, 45% paraffin and 15% beeswax heating with mass ratio, to melt-blended getting final product, filter standby then.
2. be that the green SiC abrasive material of 3.5 μ m～5 μ m is poured in the above-mentioned mixing fat and stirred by the volume ratio of 1:1 with the abrasive particle diameter, evenly wrap abrasive material to mixing fat.
The volume percent that 3. will account for lapping liquid is that 25% vegetables oil is poured in the above-mentioned mixing lipoprotein solution and is stirred to whole dissolvings.
The volume percent that 4. will account for lapping liquid is that 50% kerosene is poured in the above-mentioned solution and stirred, and treats that solvent all after the dissolving, is cooled to room temperature, obtains final lapping liquid.
Special-purpose grinding fluid of the present invention is different with traditional lapping liquid, and it is the liquid ground and mixed agent that contains abrasive material.This lapping liquid also has following characteristics except the function of general lapping liquid:
Need not add abrasive material in addition when (1) grinding;
(2) mill efficiency height, machined surface quality.
Embodiment:
In order to check the effect of special-purpose grinding fluid, carried out specific embodiment and with the grinding effect contrast experiment of lapping liquid commonly used, specifically implement as follows:
Embodiment 1: when envrionment temperature is 25 ℃.
(1) implementation condition
Two polisher lappers of BDE-1B speed control by frequency variation optics, 2205 surfagauges, special-purpose grinding fluid, tantalum tungsten hafnium workpiece, special use is held material cloth and is saved abrasive material, and abrasive parameters is: frequency 15Hz, pressure 0.3N/cm
2, eccentricity 15cm, milling time 10min.
(2) making method of special-purpose grinding fluid
The preparation ratio of lapping liquid is: volume ratio is 25% abrasive material and the uniform mixture that mixes fat, 25% vegetables oil, 50% kerosene.
(3) compound method:
1. with mass ratio 45% stearic acid particle (C
17H
35COOH), 40% paraffin (cedar seed oil) and 15% beeswax heating, to melt-blended getting final product, filter standby then;
2. be that the green SiC abrasive material (abrasive particle diameter 3.5 μ m～5 μ m) of W5 is poured in the above-mentioned mixing fat and stirred by the volume ratio of 1:1 with granularity, evenly wrap abrasive material to mixing fat.
3. be that 25% vegetables oil is poured in the above-mentioned mixing lipoprotein solution and is stirred to whole dissolvings with volume ratio.
4. be that 50% kerosene is poured in the above-mentioned solution and stirred with volume ratio, treat that solvent all after the dissolving, is cooled to room temperature.
The grinding effect of present embodiment sees attached list 2.
Embodiment 2: when envrionment temperature is 18 ℃.
(1) implementation condition
Two polisher lappers of BDE-1B speed control by frequency variation optics, 2205 surfagauges, special-purpose grinding fluid, tantalum tungsten hafnium workpiece, special use is held material cloth and is saved abrasive material, and abrasive parameters is: frequency 15Hz, pressure 0.3N/cm
2, eccentricity 15cm, milling time 10min.
(2) making method of special-purpose grinding fluid
The preparation ratio of lapping liquid is: volume ratio is 25% abrasive material and the uniform mixture that mixes fat, 25% vegetables oil, 50% kerosene.
(3) compound method:
1. with mass ratio 40% stearic acid particle (C
17H
35COOH), 45% paraffin (cedar seed oil) and 15% beeswax heating, to melt-blended getting final product, filter standby then.
2. be that the green SiC abrasive material (abrasive particle diameter 3.5 μ m～5 μ m) of W5 is poured in the above-mentioned mixing fat and stirred by the volume ratio of 1:1 with granularity, evenly wrap abrasive material to mixing fat.
3. be that 25% vegetables oil is poured in the above-mentioned mixing lipoprotein solution and is stirred to whole dissolvings with volume ratio.
4. be that 50% kerosene is poured in the above-mentioned solution and stirred with volume ratio, treat that solvent all after the dissolving, is cooled to room temperature.
The grinding effect of present embodiment sees attached list 3.
Grinding effect contrast experiment: during 21 ℃ of envrionment temperatures.
(1) experiment condition
Two polisher lappers of BDE-1B speed control by frequency variation optics, 2205 surfagauges, common plastic material lapping liquid and special-purpose grinding fluid, tantalum tungsten hafnium workpiece, special use is held material cloth and is saved abrasive material, and abrasive parameters is: frequency 15Hz, pressure 0.3N/cm
2, eccentricity 15cm, milling time 10min.
(2) preparation of common plastic material lapping liquid
The making method of common plastic material lapping liquid is as shown in following:
The preparation ratio of lapping liquid is: granularity is the Al of W1
2O
3After abrasive material (abrasive particle diameter 0.5 μ m～1 μ m) evenly mixes with industrial lard, add 30 times kerosene by volume, add a small amount of machine tool lubrication oil and a spot of vegetables oil again.
Compound method:
1. with the lard heating, get final product, filter standby then to melting.
2. the granularity of inciting somebody to action by the volume ratio of 1:1 is the Al of W1
2O
3Abrasive material (abrasive particle diameter 0.5 μ m～1 μ m) is poured in the lard of fusing and is stirred, and evenly wraps abrasive material to lard.
3. the kerosene that adds 30 times by volume is stirred to whole dissolvings in above-mentioned mixing solutions.
4. an amount of vegetables oil is poured into and be stirred to whole dissolvings in the above-mentioned solution.
5. an amount of machine tool lubrication oil is poured in the above-mentioned solution and stirred, treat that solvent all after the dissolving, is cooled to room temperature.
(3) preparation of special-purpose grinding fluid is with embodiment 1.
The grinding effect comparing result is seen attached list shown in 4.Table 1 mixes the proportioning (mass percent) of fat
Surfaceness after table 2 grinds
Surfaceness after table 3 grinds
The contrast of table 4 grinding effect
Claims (2)
1. metal tantalum and special-purpose grinding fluid for alloy thereof, it is characterized in that: including the abrasive particle diameter is green SiC abrasive material, mixing fat, kerosene and the vegetables oil of 3.5 μ m～5 μ m, the proportioning of each composition is: volume ratio is 25% abrasive material and the uniform mixture that mixes fat, 25% vegetables oil, 50% kerosene, wherein, abrasive material is 1:1 with the volume ratio of mixing fat;
The preparation that mixes fat has two kinds of selections according to adding the envrionment temperature in man-hour: when envrionment temperature was higher than 20 ℃, mixing fat was that 45% stearic acid particle, 40% paraffin and 15% beeswax heat fused are mixed and made into by mass ratio; When envrionment temperature was lower than 20 ℃, mixing fat was that 40% stearic acid particle, 45% paraffin and 15% beeswax heat fused are mixed and made into by mass ratio.
2. the preparation method of metal tantalum according to claim 1 and special-purpose grinding fluid for alloy thereof is characterized in that, may further comprise the steps:
1. when envrionment temperature is higher than 20 ℃, be 45% stearic acid particle, 40% paraffin and 15% beeswax heating with mass ratio, to melt-blended getting final product, filter standby then;
When envrionment temperature is lower than 20 ℃, be 40% stearic acid particle, 45% paraffin and 15% beeswax heating with mass ratio, to melt-blended getting final product, filter standby then.
2. be that the green SiC abrasive material of 3.5 μ m～5 μ m is poured in the above-mentioned mixing fat and stirred by the volume ratio of 1:1 with the abrasive particle diameter, evenly wrap abrasive material to mixing fat.
The volume percent that 3. will account for lapping liquid is that 25% vegetables oil is poured in the above-mentioned mixing lipoprotein solution and is stirred to whole dissolvings.
The volume percent that 4. will account for lapping liquid is that 50% kerosene is poured in the above-mentioned solution and stirred, and treats that solvent all after the dissolving, is cooled to room temperature, obtains final lapping liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100999434A CN100523058C (en) | 2007-06-01 | 2007-06-01 | Metallic tantalum, special-purpose grinding fluid for alloy of the same and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100999434A CN100523058C (en) | 2007-06-01 | 2007-06-01 | Metallic tantalum, special-purpose grinding fluid for alloy of the same and preparation method thereof |
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| CN101058643A CN101058643A (en) | 2007-10-24 |
| CN100523058C true CN100523058C (en) | 2009-08-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101226083B (en) * | 2008-01-23 | 2013-01-09 | 浙江慧康暖通设备有限公司 | Method for manufacturing low-temperature temperature-sensing element using temperature-sensing wax mixture under ordinary temperature |
| CN103897408B (en) * | 2012-12-27 | 2016-04-13 | 江苏泰尔新材料股份有限公司 | The shaping wax of a kind of Wimet |
| CN103333617B (en) * | 2013-06-27 | 2014-12-31 | 北京工业大学 | Special polishing fluid for plastic soft metallic materials and method for preparing polishing fluid |
| CN112658816B (en) * | 2020-12-27 | 2022-08-23 | 浙江师范大学 | Abrasive flow polishing method with controllable viscosity and device thereof |
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