CN104355604A - Degreasing process of ceramic wire-drawing mold core - Google Patents
Degreasing process of ceramic wire-drawing mold core Download PDFInfo
- Publication number
- CN104355604A CN104355604A CN201410595680.6A CN201410595680A CN104355604A CN 104355604 A CN104355604 A CN 104355604A CN 201410595680 A CN201410595680 A CN 201410595680A CN 104355604 A CN104355604 A CN 104355604A
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- CN
- China
- Prior art keywords
- degreasing
- degreasing process
- siphon
- ceramic
- core rod
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- 238000000034 method Methods 0.000 title claims description 53
- 238000005238 degreasing Methods 0.000 title claims description 44
- 239000000919 ceramic Substances 0.000 title claims description 22
- 238000005491 wire drawing Methods 0.000 title claims description 8
- 244000309464 bull Species 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000002594 sorbent Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 3
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229940024545 aluminum hydroxide Drugs 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- -1 fatty acid ester Chemical class 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Producing Shaped Articles From Materials (AREA)
Abstract
The invention discloses a degreasing process of a ceramic wire-drawing mold core. The ceramic wire-drawing mold core is prepared from raw materials, namely, Al2O3 powder, a toughening agent ZrO2 and an active agent AS all used as main materials, and a binding agent, wherein the binding agent comprises thermal-plastic resin polystyrene, a plasticizer aliphatic ester, a lubricant paraffin and a surfactant plant oil; a siphon degreasing method is adopted in the degreasing process after the ceramic wire-drawing mold core is molded in an injection manner; the adsorbent used in the siphon degreasing method is aluminum hydroxide powder doped with activated carbon. The invention discloses the degreasing process of the ceramic wire-drawing mold core. The degreasing process is reasonable in procedure arrangement, compact in course and simple and convenient to perform, the treatment process is performed in a sectional heating and temperature keeping treatment mode, complete formed blanks without defects can be obtained, the degreasing time is shortened to a relatively large extent, and the degreasing process of ceramic mold cores is effectively optimized.
Description
Technical field
The present invention relates to a kind of degreasing method of die core of wire-drawing die, particularly relate to a kind of degreasing process of ceramic bull block core rod, belong to technology of die manufacturing field.
Background technology
The shaping base of ceramic injection forming is the two-phase mixture mixed by organic bond and inorganic powder, and organic bond wherein occurs as just an interim composition, finally will be removed.The object of binding agent is that the mobility utilizing it good helps ceramic powder filling die cavity, makes ceramic powder energy mutual connection after being cooled to base.Want the microstructure making final product reach desirable, the removing process of bonding agent seems crucial especially.Defatting step is the longest part consuming time in injection molding, generally reaches more than 40 hours, and the time has become the most important link of Controlling Technology time, but degreasing is also the step the most easily producing defect.If the diffusion of these products and evaporation are rapid not, the concentration of degradation production will reach the state of a limit, and this produces defect by causing the binding agent injecting blank inside to seethe with excitement.If the existence of aerobic, oxygenolysis will occur in liquid binder and gas atmosphere interface, and oxygen is limited in interfacial layer, and its thickness depends on the diffusion of oxygen in fused junction mixture and the degradation production after oxidation.In skimming processes, the oxygenolysis from injection blank surface to injection blank inside creates a fragile upper layer, but kernel or plasticity, uneven contraction will cause the generation of defect.Therefore, inappropriate degreasing process can make base substrate appearance defect macroscopically, and such as expand, bubble, the crackle on surface and a large amount of internal voids, directly affect the use properties of ceramic.
Summary of the invention
For the demand, the invention provides a kind of degreasing process of ceramic bull block core rod, this degreasing method procedure arrangement is reasonable, process is compact, be easy to implement, operate according to the mode of temperature-gradient method and isothermal holding, effectively shorten the time of degreasing, and ensure that molded blank is perfect sunken.
The present invention is a kind of degreasing process of ceramic bull block core rod, the raw material of this die core of wire-drawing die comprises major ingredient and binding agent, described major ingredient is formed by Al2O3 powder, toughner ZrO2 and promoting agent AS mixed preparing, described binding agent comprises thermoplastic resin polystyrene, fluidizer fatty acid ester, lubricant paraffin and tensio-active agent vegetables oil, described die core of wire-drawing die is siphon degreasing method by the degreasing process after injection molding, the aluminium-hydroxide powder that the sorbent material that described siphon degreasing method uses is dopped activated carbon.
In a preferred embodiment of the present invention, the average particle size of described sorbent material is 150-200 order, and the content of gac is about the 20%-25% of sorbent material total mass.
In a preferred embodiment of the present invention, it is 5 stages that described siphon degreasing method can be delimited according to the change of blank heating temperature, is respectively: 0 DEG C-50 DEG C, 50 DEG C-170 DEG C, 170 DEG C-210 DEG C, 210 DEG C-330 DEG C, 330 DEG C-400 DEG C.
In a preferred embodiment of the present invention, the temperature rise rate in the described each temperature stage of siphon degreasing method is set to respectively: 30 DEG C/h, 15 DEG C/h, 10 DEG C/h, 20 DEG C/h, 15 DEG C/h.
In a preferred embodiment of the present invention, the insulation in the described each temperature stage of siphon degreasing method is consuming time to be respectively: 60 minutes, 120 minutes, 400 minutes, 120 minutes, 100 minutes.
In a preferred embodiment of the present invention, within described siphon degreasing method always consuming time is reduced to 36 hours.
Present invention is disclosed a kind of degreasing process of ceramic bull block core rod, this degreasing method procedure arrangement is reasonable, process is compact, be easy to implement, treating processes operates according to the mode of temperature-gradient method and isothermal holding, perfect sunken molded blank can be obtained, and shorten degreasing time largely, effectively optimize the degreasing process of ceramic mold core.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Fig. 1 is the thetagram of the skimming treatment of embodiment of the present invention ceramic bull block core rod.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Fig. 1 is the thetagram of the skimming treatment of embodiment of the present invention ceramic bull block core rod; The raw material of this die core of wire-drawing die comprises major ingredient and binding agent, described major ingredient is formed by Al2O3 powder, toughner ZrO2 and promoting agent AS mixed preparing, described binding agent comprises thermoplastic resin polystyrene, fluidizer fatty acid ester, lubricant paraffin and tensio-active agent vegetables oil, described die core of wire-drawing die is siphon degreasing method by the degreasing process after injection molding, the aluminium-hydroxide powder that the sorbent material that described siphon degreasing method uses is dopped activated carbon.
Further illustrate, the average particle size of the sorbent material that siphon degreasing method adopts is 150-200 order, and the content of gac is about the 20%-25% of sorbent material total mass.
It is 5 stages that siphon degreasing method can be delimited according to the change of blank heating temperature, is respectively: 0 DEG C-50 DEG C, 50 DEG C-170 DEG C, 170 DEG C-210 DEG C, 210 DEG C-330 DEG C, 330 DEG C-400 DEG C; Temperature rise rate in corresponding each temperature stage is set to respectively: 30 DEG C/h, 15 DEG C/h, 10 DEG C/h, 20 DEG C/h, 15 DEG C/h; Insulation in corresponding each temperature stage is consuming time to be respectively: 60 minutes, 120 minutes, 400 minutes, 120 minutes, 100 minutes; Within siphon degreasing method always consuming time is reduced to 36 hours; Implement in strict accordance with above-mentioned processing arrangement during actually operating, high-quality ceramic mold core can be obtained.
Present invention is disclosed a kind of degreasing process of ceramic bull block core rod, be characterized in: this degreasing method procedure arrangement is reasonable, process is compact, be easy to implement, treating processes operates according to the mode of temperature-gradient method and isothermal holding, perfect sunken molded blank can be obtained, and shorten degreasing time largely, effectively optimize the degreasing process of ceramic mold core.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (6)
1. the degreasing process of a ceramic bull block core rod, it is characterized in that, the raw material of this die core of wire-drawing die comprises major ingredient and binding agent, described major ingredient is formed by Al2O3 powder, toughner ZrO2 and promoting agent AS mixed preparing, described binding agent comprises thermoplastic resin polystyrene, fluidizer fatty acid ester, lubricant paraffin and tensio-active agent vegetables oil, described die core of wire-drawing die is siphon degreasing method by the degreasing process after injection molding, the aluminium-hydroxide powder that the sorbent material that described siphon degreasing method uses is dopped activated carbon.
2. the degreasing process of ceramic bull block core rod according to claim 1, is characterized in that, the average particle size of described sorbent material is 150-200 order, and the content of gac is about the 20%-25% of sorbent material total mass.
3. the degreasing process of ceramic bull block core rod according to claim 1, it is characterized in that, it is 5 stages that described siphon degreasing method can be delimited according to the change of blank heating temperature, is respectively: 0 DEG C-50 DEG C, 50 DEG C-170 DEG C, 170 DEG C-210 DEG C, 210 DEG C-330 DEG C, 330 DEG C-400 DEG C.
4. the degreasing process of ceramic bull block core rod according to claim 3, is characterized in that, the temperature rise rate in the described each temperature stage of siphon degreasing method is set to respectively: 30 DEG C/h, 15 DEG C/h, 10 DEG C/h, 20 DEG C/h, 15 DEG C/h.
5. the degreasing process of ceramic bull block core rod according to claim 3, is characterized in that, the insulation in the described each temperature stage of siphon degreasing method is consuming time to be respectively: 60 minutes, 120 minutes, 400 minutes, 120 minutes, 100 minutes.
6. according to the degreasing process of the ceramic bull block core rod described in claim 3 to 5, it is characterized in that, within described siphon degreasing method always consuming time is reduced to 36 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410595680.6A CN104355604A (en) | 2014-10-30 | 2014-10-30 | Degreasing process of ceramic wire-drawing mold core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410595680.6A CN104355604A (en) | 2014-10-30 | 2014-10-30 | Degreasing process of ceramic wire-drawing mold core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104355604A true CN104355604A (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410595680.6A Pending CN104355604A (en) | 2014-10-30 | 2014-10-30 | Degreasing process of ceramic wire-drawing mold core |
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| Country | Link |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62232358A (en) * | 1986-04-03 | 1987-10-12 | Sukeyoshi Sano | De-fatting tank for ground fish production device |
| CN102009175A (en) * | 2010-10-08 | 2011-04-13 | 李亚东 | Manufacturing method of multilayer shell-core composite structural part |
-
2014
- 2014-10-30 CN CN201410595680.6A patent/CN104355604A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62232358A (en) * | 1986-04-03 | 1987-10-12 | Sukeyoshi Sano | De-fatting tank for ground fish production device |
| CN102009175A (en) * | 2010-10-08 | 2011-04-13 | 李亚东 | Manufacturing method of multilayer shell-core composite structural part |
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Application publication date: 20150218 |