CN102732741A - Method for preparing cemented carbide mixture by using water as wet grinding medium - Google Patents
Method for preparing cemented carbide mixture by using water as wet grinding medium Download PDFInfo
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- CN102732741A CN102732741A CN2011100820401A CN201110082040A CN102732741A CN 102732741 A CN102732741 A CN 102732741A CN 2011100820401 A CN2011100820401 A CN 2011100820401A CN 201110082040 A CN201110082040 A CN 201110082040A CN 102732741 A CN102732741 A CN 102732741A
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- wet grinding
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Abstract
The invention discloses a method for preparing a cemented carbide mixture by using water as a wet grinding medium, Deionized water is used as the wet grinding medium. The method comprises the following steps of: adding 150-300ml of deionized water into a cemented carbide raw material per kilogram, adding an anti-oxidant which accounts for 0.1-2% of the total weight of the cemented carbide raw material to prepare a wet grinding system, adding a forming agent in the normal manner, followed by ball milling and spray drying technologies to prepare the cemented carbide mixture. By the adoption of the method provided by the invention, security hidden trouble of the production can be eliminated, environmental pollution can be reduced, and the production cost can be decreased.
Description
Technical field
The present invention relates to the method for a kind of water as the carbide alloy mixture of wet grinding media preparation.
Background technology
Wimet is with high firmness refractory carbide and the matrix metal sintered metal product that sintering forms in vacuum oven or hydrogen reducing furnace.In the CEMENTED CARBIDE PRODUCTION especially vacuum sintering to avoid the compound oxygen level most changeable, and inevitable oxygen content change in the actual production is come certain difficulty to sintered products control carbon ribbon.Therefore the wimet industry is many is that wet grinding media prepares compound with high straight alcohol, hexane, acetone, gasoline etc., in the hope of controlling the oxygen level of compound preferably.The production cost of high straight alcohol, hexane, acetone, gasoline is higher, all belongs to inflammable and explosive, volatile liquid again, and use is dangerous, and environmental pollution is bigger, and long-term contact has certain injury to operator's health.Consider environmental issue, the wet grinding media that European many countries have expressly banned use of volatile organic solvent to produce as carbide alloy mixture.
In view of this, the inventor has researched and developed a kind of water and has prepared the method for carbide alloy mixture as wet grinding media, and this case produces thus.
Summary of the invention
The object of the present invention is to provide a kind of water to prepare the method for carbide alloy mixture,, reduce environmental pollution, reduce production costs to eliminate the potential safety hazard of producing as wet grinding media.
To achieve these goals, technical scheme of the present invention is following:
A kind of water prepares the method for carbide alloy mixture as wet grinding media; With the deionized water is wet grinding media, and the per kilogram hard alloy material adds the 150-300ml deionized water, and adds the inhibitor (like a kind of verivate of hydrazine) that accounts for hard alloy material gross weight 0.1%-2%; Process the wet-milling system; By being routinely added to forming agent,, be prepared into carbide alloy mixture again through rolling ball milling, drying process with atomizing.
Wherein, de-ionized electrical conductivity of water＜5 μ g/l, resistivity 17-18 Ω cm.
Water prepares compound as wet grinding media and has the problem that is prone to oxidation; Dissolved oxygen and carbonic acid gas can cause the oxidation of hard alloy material in the water in the wet-milling process; Thereby cause compound oxygenation serious, make wimet be difficult for control carbon, the existence of oxidation solids in the compound simultaneously; Be unfavorable for compacting and be prone in sintering, cause hole, therefore must add suitable inhibitor solves the problems referred to above.The selection of inhibitor will be deferred to following principle: molecular weight can not be too high; Do not contain impurity such as K, Ga, Na, Si, P; It is neutral or alkaline that its aqueous solution is; Chemical reaction does not take place with hard alloy material; Be prone to remove, noresidue.The basic physical properties of the inhibitor that the present invention selects for use: molecular weight is less than 100; Fusing point is lower than 160 ℃, decomposes during fusion; Very easily water-soluble, dissolving and heat absorbing, the aqueous solution are alkalescence; Nonhygroscopic, have utmost point intensive reductibility; Toxicity is little, fusing point is high, deoxidation efficient high, environmental protection safe in utilization.Above rerum natura satisfies its selection principle for preparing the inhibitor of carbide alloy mixture as water.
After adopting such scheme, the present invention, adds a certain amount of inhibitor and prepares carbide alloy mixture as wet grinding media with deionized water; Alternative traditional high straight alcohol, hexane, acetone, gasoline etc. are eliminated inflammable and explosive potential safety hazard, reduce environmental pollution; Improve working conditions; Reduce the equipment input, reduce production costs, set up economy, environmental protection and the water base compound production process route of wimet efficiently.
Below in conjunction with specific embodiment the present invention is described further.
Embodiment
It below is preferred embodiment of the present invention.
1, WC Fisher particle size 0.82 μ m, the carbide alloy mixture of Co content 12%, per kilogram adds the 270ml deionized water, 0.3% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.78%, and is suitable with alcohol-based compound oxygen level.
2, WC Fisher particle size 0.82 μ m, the carbide alloy mixture of Co content 12%, per kilogram adds the 270ml deionized water, 0.5% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.70%, and is suitable with alcohol-based compound oxygen level.
3, WC Fisher particle size 3.54 μ m, the carbide alloy mixture of Co content 8%, per kilogram adds the 150ml deionized water, 0.1% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.35%, and is suitable with alcohol-based compound oxygen level.
4, WC Fisher particle size 3.54 μ m, the carbide alloy mixture of Co content 8%, per kilogram adds the 150ml deionized water, 0.5% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.32%, and is suitable with alcohol-based compound oxygen level.
5, WC Fisher particle size 3.54 μ m, the carbide alloy mixture of Co content 8%, per kilogram adds the 150ml deionized water, 1% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.26%, and is suitable with alcohol-based compound oxygen level.
6, WC Fisher particle size 4.57 μ m, the carbide alloy mixture of Co content 8%, per kilogram adds the 150ml deionized water, 0.1% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.33%, and is suitable with alcohol-based compound oxygen level.
7, WC Fisher particle size 4.57 μ m, the carbide alloy mixture of Co content 8%, per kilogram adds the 150ml deionized water, 0.5% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.31%, and is suitable with alcohol-based compound oxygen level.
8, WC Fisher particle size 4.57 μ m, the carbide alloy mixture of Co content 8%, per kilogram adds the 150ml deionized water, 1% inhibitor, the carbide alloy mixture oxygen level of preparation is 0.29%, and is suitable with alcohol-based compound oxygen level.
Table 1 proportioning raw materials, water consumption, inhibitor consumption and carbide alloy mixture oxygen level
Claims (2)
1. a water prepares the method for carbide alloy mixture as wet grinding media; It is characterized in that: be wet grinding media with the deionized water, the per kilogram hard alloy material adds the 150-300ml deionized water, and adds the inhibitor that accounts for hard alloy material gross weight 0.1%-2%; Process the wet-milling system; By being routinely added to forming agent,, be prepared into carbide alloy mixture again through rolling ball milling, drying process with atomizing.
2. a kind of according to claim 1 water prepares the method for carbide alloy mixture as wet grinding media, it is characterized in that: de-ionized electrical conductivity of water＜5 μ g/l, resistivity 17-18 Ω cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100820401A CN102732741A (en) | 2011-04-01 | 2011-04-01 | Method for preparing cemented carbide mixture by using water as wet grinding medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100820401A CN102732741A (en) | 2011-04-01 | 2011-04-01 | Method for preparing cemented carbide mixture by using water as wet grinding medium |
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| CN102732741A true CN102732741A (en) | 2012-10-17 |
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| CN2011100820401A Pending CN102732741A (en) | 2011-04-01 | 2011-04-01 | Method for preparing cemented carbide mixture by using water as wet grinding medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789807A (en) * | 2015-03-17 | 2015-07-22 | 厦门钨业股份有限公司 | Method for improving unloading of hard alloy water-based mixed material slurry |
| CN111283341A (en) * | 2018-12-10 | 2020-06-16 | 株洲楚天硬质合金股份有限公司 | Wolf tooth stick welding rod hard alloy particle mixed material wet grinding process method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514405A (en) * | 2009-03-09 | 2009-08-26 | 江西稀有稀土金属钨业集团有限公司 | Preparation method for cemented carbide mixture |
| CN101525699A (en) * | 2009-04-17 | 2009-09-09 | 戴煜 | Method for manufacturing hard alloy or tungsten-molybdenum mixture by taking water as medium |
-
2011
- 2011-04-01 CN CN2011100820401A patent/CN102732741A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514405A (en) * | 2009-03-09 | 2009-08-26 | 江西稀有稀土金属钨业集团有限公司 | Preparation method for cemented carbide mixture |
| CN101525699A (en) * | 2009-04-17 | 2009-09-09 | 戴煜 | Method for manufacturing hard alloy or tungsten-molybdenum mixture by taking water as medium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789807A (en) * | 2015-03-17 | 2015-07-22 | 厦门钨业股份有限公司 | Method for improving unloading of hard alloy water-based mixed material slurry |
| CN111283341A (en) * | 2018-12-10 | 2020-06-16 | 株洲楚天硬质合金股份有限公司 | Wolf tooth stick welding rod hard alloy particle mixed material wet grinding process method |
| CN111283341B (en) * | 2018-12-10 | 2022-06-07 | 株洲楚天硬质合金股份有限公司 | Wolf tooth stick welding rod hard alloy particle mixed material wet grinding process method |
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Application publication date: 20121017 |