CN105537510A - Casting wax with ozokerite as main body and preparation method thereof - Google Patents
Casting wax with ozokerite as main body and preparation method thereof Download PDFInfo
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- CN105537510A CN105537510A CN201510939693.5A CN201510939693A CN105537510A CN 105537510 A CN105537510 A CN 105537510A CN 201510939693 A CN201510939693 A CN 201510939693A CN 105537510 A CN105537510 A CN 105537510A
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- consumption
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- fused mass
- weight portion
- ceresine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses casting wax with ozokerite as a main body and a preparation method thereof. The preparation method comprises the following steps: 1) ozokerite, microcrystalline wax, lignite wax, ethylene-ethyl acetate copolymer, 1,3-oxygen nitrogen heterocyclic ring cyclohexane, octadecanoic acid, calcium stearate, sodium dodecyl benzene sulfonate, dimethyl(octyl)amine and stearic acid are thermally treatd to prepare a melt M; 2) silicon dioxide and alkali are heated to melt to prepare a melt N; 3) the melt M, the melt N and borax are mixed and heated; and then, carbon bioxide is introduced to prepare a melt L; and 4) the melt L is filtered and is mixed with emulsified microcrystalline wax, and the mixture is cooled to prepare the casting wax with ozokerite as the main body. The casting wax is excellent in thermal stability and size stability.
Description
Technical field
The present invention relates to casting wax, particularly, relate to a kind of casting wax based on ceresine and preparation method thereof.
Background technology
" lost-wax process " is a kind of method of copper artware casting: namely with waxed one-tenth loose tool, external application Modeling Material, becomes block mold; Then heat and wax is gone, form cavity casting model; Finally pour into liquid metal, after cooling, obtain mould casting.This is owned by France is generally used for casting very meticulous in " model casting " category, the copper carving class art work that shape is very complicated.
Hot investment casting wax is the proprietary material of finished parts mold in precision-investment casting, the shrinkage factor of hot investment casting part wax pattern, crystallization cool time, surface smoothness and wellability namely with the adhesiveness of refractory material, be the key factor determining casting accuracy.In the manufacturing process of the complex-shaped copper carving class art work, require that mould material shrinkage factor is little, good stability of the dimension, good fluidity, flexural strength are high, hardness is high, smooth surface and there is wetability make refractory material be easy to stick to model surface.
But the wax-pattern that casting wax of the prior art completes also exists the defect of poor dimensional stability, along with the time increases, shrinkage factor continues to increase, and each wax pattern size uniformity can not be ensured, especially for thick large parts model because of its crystallization long for cool time, cause the contraction at this position uneven, modification is serious; Also easily produce the undesirable appearance such as air pocket, empty low-lying area, depression simultaneously; Special in the copper artware very high to dimension precision requirement, existing casting wax can not meet instructions for use completely.
Summary of the invention
The object of this invention is to provide a kind of casting wax based on ceresine and preparation method thereof, this casting wax has excellent heat endurance and dimensional stability.
To achieve these goals, the invention provides a kind of preparation method of the casting wax based on ceresine, comprising:
1) ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer, 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid are heat-treated with obtained fused mass M;
2) by silica and alkali heating and melting with obtained fused mass N;
3) fused mass M, fused mass N, borax mixed and heat, then passing into carbon dioxide with obtained fused mass L;
4) fused mass L is filtered, mix with emulsified microcrystalline wax and cool with the obtained casting wax based on ceresine.
Present invention also offers a kind of casting wax based on ceresine, should be obtained by the preparation of above-mentioned method by the casting wax based on ceresine.
Pass through technique scheme, first ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer, 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid heat-treat with obtained fused mass M by the present invention; Then by silica and alkali heating and melting with obtained fused mass N; Then fused mass M, fused mass N, borax mixed and heat, then passing into carbon dioxide with obtained fused mass L; Finally fused mass L is filtered, mix with emulsified microcrystalline wax and cool with the obtained casting wax based on ceresine.In this preparation method, by the synergy between each step and each raw material, make the casting wax based on ceresine obtained not only have excellent heat endurance, also there is excellent dimensional stability simultaneously.Meanwhile, this preparation method's raw material is easy to get, and operation is simple and then make the method be applicable to large-scale production.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Below the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of preparation method of the casting wax based on ceresine, comprising:
1) ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer, 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid are heat-treated with obtained fused mass M;
2) by silica and alkali heating and melting with obtained fused mass N;
3) fused mass M, fused mass N, borax mixed and heat, then passing into carbon dioxide with obtained fused mass L;
4) fused mass L is filtered, mix with emulsified microcrystalline wax and cool with the obtained casting wax based on ceresine.
In step 1 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 1) in, relative to the described ceresine of 100 weight portions, the consumption of microwax is 7-20 weight portion, the consumption of montan wax is 25-28 weight portion, the consumption of ethylene-ethyl acetate copolymer is 20-24 weight portion, 1, the consumption of 3-oxaza cyclohexane is 4-6 weight portion, the consumption of octadecanoid acid is 10-14 weight portion, and the consumption of calcium stearate is 0.5-1.2 weight portion, and the consumption of neopelex is 3-7 weight portion, the consumption of octyl dimethyl tertiary amine is 2-8 weight portion, and stearic consumption is 2-3 weight portion.
In step 1 of the present invention) in, heat treated condition can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 1) in, heat treatment at least meets the following conditions: heat treatment temperature is 85-95 DEG C, and heat treatment time is 40-45min.
In step 1 of the present invention) in, the weight average molecular weight of ethylene-ethyl acetate copolymer can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, the weight average molecular weight of ethylene-ethyl acetate copolymer is 3500-5000.
In step 2 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 2) in, relative to the silica of 100 weight portions, the consumption of alkali is 200-300 weight portion.
In step 2 of the present invention) in, the condition of heating and melting can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 2) in, heating and melting at least meets the following conditions: heating-up temperature is 250-300 DEG C, and the heat time is 4-6h.
In step 2 of the present invention) in, the kind of alkali can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, alkali is selected from one or more in NaOH, potassium hydroxide and barium hydroxide.
In step 3 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 3) in, be 5-7 weight portion relative to the consumption of the fused mass M of 100 weight portions, fused mass N, the consumption of borax is 3-4 weight portion, and the consumption of carbon dioxide is 6-7 weight portion.
In step 3 of the present invention) in, heating condition can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 3) in, heating at least meets the following conditions: heating-up temperature is 115-125 DEG C, and the heat time is 15-20min.
In step 4 of the present invention) in, the consumption of each material can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 4) in, the weight ratio of fused mass L and emulsified microcrystalline wax is 100:1.5-3.5.
In step 4 of the present invention) in, the temperature of cooling can be selected in wide scope, but in order to make the casting wax based on ceresine obtained have more excellent heat endurance and dimensional stability; Preferably, in step 4) in, the temperature of cooling is 25-35 DEG C.
Present invention also offers a kind of casting wax based on ceresine, should be obtained by the preparation of above-mentioned method by the casting wax based on ceresine.
Below will be described the present invention by embodiment.
Embodiment 1
1) ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer (weight average molecular weight is 4000), 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid are heat-treated 42min with obtained fused mass M at being incorporated in 90 DEG C according to the weight ratio of 100:15:26:23:5:13:1:5:6:2.5 is mixed;
2) at silica and alkali (NaOH) being incorporated in 280 DEG C according to the weight ratio of 100:250 is mixed, heating and melting 5h is with obtained fused mass N;
3) fused mass M, fused mass N, borax are heated 18min at being incorporated in 120 DEG C according to the weight ratio of 100:6:3.5 is mixed, then pass into carbon dioxide (be 100:6.5 with the weight ratio of fused mass M) with obtained fused mass L;
4) fused mass L filtered, cool with the obtained casting wax A1 based on ceresine with mixed being incorporated at 30 DEG C of emulsified microcrystalline wax (be 100:2.5 with the weight ratio of fused mass L).
Embodiment 2
1) ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer (weight average molecular weight is 3500), 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid are heat-treated 40-45min with obtained fused mass M at being incorporated in 85 DEG C according to the weight ratio of 100:7:25:20:4:10:0.5:3:2:2 is mixed;
2) at silica and alkali (potassium hydroxide) being incorporated in 250 DEG C according to the weight ratio of 100:200 is mixed, heating and melting 4h is with obtained fused mass N;
3) fused mass M, fused mass N, borax are heated 15min at being incorporated in 115 DEG C according to the weight ratio of 100:5:3 is mixed, then pass into carbon dioxide (be 100:6 with the weight ratio of fused mass M) with obtained fused mass L;
4) fused mass L filtered, cool with the obtained casting wax A2 based on ceresine with mixed being incorporated at 25 DEG C of emulsified microcrystalline wax (be 100:1.5 with the weight ratio of fused mass L).
Embodiment 3
1) ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer (weight average molecular weight is 5000), 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid are heat-treated 45min with obtained fused mass M at being incorporated in 95 DEG C according to the weight ratio of 100:20:28:24:6:14:1.2:7:8:3 is mixed;
2) at silica and alkali (barium hydroxide) being incorporated in 300 DEG C according to the weight ratio of 100:300 is mixed, heating and melting 6h is with obtained fused mass N;
3) fused mass M, fused mass N, borax are heated 20min at being incorporated in 125 DEG C according to the weight ratio of 100:7:4 is mixed, then pass into carbon dioxide (be 100:7 with the weight ratio of fused mass M) with obtained fused mass L;
4) fused mass L filtered, cool with the obtained casting wax A3 based on ceresine with mixed being incorporated at 35 DEG C of emulsified microcrystalline wax (be 100:3.5 with the weight ratio of fused mass L).
Comparative example 1
Carry out obtained casting wax B1 according to the method for embodiment 1, unlike, step 1) in do not use ethylene-ethyl acetate copolymer.
Comparative example 2
Carry out obtained casting wax B2 according to the method for embodiment 1, unlike, step 1) in do not use 1,3-oxaza cyclohexane.
Comparative example 3
Carry out obtained casting wax B3 according to the method for embodiment 1, unlike, step 1) in do not use 1,3-oxaza cyclohexane.
Comparative example 4
Carry out obtained casting wax B4 according to the method for embodiment 1, unlike, step 3) in do not use fused mass N.
Comparative example 5
Carry out obtained casting wax B5 according to the method for embodiment 1, unlike, step 3) in do not use borax.
Comparative example 6
Carry out obtained casting wax B6 according to the method for embodiment 1, unlike, step 4) in do not use emulsified microcrystalline wax.
Test example 1
Detect the heat endurance of above-mentioned casting wax, linear shrinkage ratio (20 DEG C) and needle penetration (1/10mm, 25 DEG C), concrete outcome is in table 1.
Table 1
Known by above-described embodiment, comparative example and test example, the casting wax based on ceresine provided by the invention not only has excellent heat endurance, also has excellent dimensional stability simultaneously.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a preparation method for the casting wax based on ceresine, is characterized in that, comprising:
1) ceresine, microwax, montan wax, ethylene-ethyl acetate copolymer, 1,3-oxaza cyclohexane, octadecanoid acid, calcium stearate, neopelex, octyl dimethyl tertiary amine and stearic acid are heat-treated with obtained fused mass M;
2) by silica and alkali heating and melting with obtained fused mass N;
3) described fused mass M, fused mass N, borax mixed and heat, then passing into carbon dioxide with obtained fused mass L;
4) described fused mass L is filtered, mix with emulsified microcrystalline wax and cool with the obtained described casting wax based on ceresine.
2. preparation method according to claim 1, wherein, in step 1) in, relative to the described ceresine of 100 weight portions, the consumption of described microwax is 7-20 weight portion, the consumption of described montan wax is 25-28 weight portion, the consumption of described ethylene-ethyl acetate copolymer is 20-24 weight portion, described 1, the consumption of 3-oxaza cyclohexane is 4-6 weight portion, the consumption of described octadecanoid acid is 10-14 weight portion, the consumption of described calcium stearate is 0.5-1.2 weight portion, the consumption of described neopelex is 3-7 weight portion, the consumption of described octyl dimethyl tertiary amine is 2-8 weight portion, described stearic consumption is 2-3 weight portion.
3. preparation method according to claim 2, wherein, in step 1) in, described heat treatment at least meets the following conditions: heat treatment temperature is 85-95 DEG C, and heat treatment time is 40-45min;
Preferably, the weight average molecular weight of described ethylene-ethyl acetate copolymer is 3500-5000.
4. according to the preparation method in claim 1-3 described in any one, wherein, in step 2) in, relative to the described silica of 100 weight portions, the consumption of described alkali is 200-300 weight portion.
5. preparation method according to claim 4, wherein, in step 2) in, described heating and melting at least meets the following conditions: heating-up temperature is 250-300 DEG C, and the heat time is 4-6h;
Preferably, described alkali is selected from one or more in NaOH, potassium hydroxide and barium hydroxide.
6. according to the preparation method in claim 1-3 and 5 described in any one, wherein, in step 3) in, relative to the described fused mass M of 100 weight portions, the consumption of described fused mass N is 5-7 weight portion, the consumption of described borax is 3-4 weight portion, and the consumption of described carbon dioxide is 6-7 weight portion.
7. preparation method according to claim 6, wherein, in step 3) in, described heating at least meets the following conditions: heating-up temperature is 115-125 DEG C, and the heat time is 15-20min.
8. preparation method according to claim 6, wherein, in step 4) in, the weight ratio of described fused mass L and emulsified microcrystalline wax is 100:1.5-3.5.
9. preparation method according to claim 8, wherein, in step 4) in, the temperature of described cooling is 25-35 DEG C.
10. the casting wax based on ceresine, is characterized in that, the described casting wax based on ceresine is obtained by the method preparation in claim 1-9 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510939693.5A CN105537510A (en) | 2015-12-15 | 2015-12-15 | Casting wax with ozokerite as main body and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510939693.5A CN105537510A (en) | 2015-12-15 | 2015-12-15 | Casting wax with ozokerite as main body and preparation method thereof |
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| CN105537510A true CN105537510A (en) | 2016-05-04 |
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| CN201510939693.5A Pending CN105537510A (en) | 2015-12-15 | 2015-12-15 | Casting wax with ozokerite as main body and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308123A (en) * | 2021-05-12 | 2021-08-27 | 青岛新诺科铸造材料科技有限公司 | Method for casting wax by controlling reaction time and reaction temperature process |
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| US3880790A (en) * | 1973-05-14 | 1975-04-29 | Petrolite Corp | Investment casting wax composition |
| JP2004261817A (en) * | 2003-02-21 | 2004-09-24 | Shonan Design Kk | Manufacturing method for mold for lost wax precision casting |
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| CN104592765A (en) * | 2015-01-16 | 2015-05-06 | 青岛新诺科铸造材料科技有限公司 | Precisely cast low-temperature modulated wax and preparation method thereof |
| CN104610762A (en) * | 2015-01-16 | 2015-05-13 | 青岛新诺科铸造材料科技有限公司 | Filled low-temperature modulation wax for precision casting and preparation method thereof |
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2015
- 2015-12-15 CN CN201510939693.5A patent/CN105537510A/en active Pending
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| US3880790A (en) * | 1973-05-14 | 1975-04-29 | Petrolite Corp | Investment casting wax composition |
| JP2004261817A (en) * | 2003-02-21 | 2004-09-24 | Shonan Design Kk | Manufacturing method for mold for lost wax precision casting |
| CN101074320A (en) * | 2006-05-19 | 2007-11-21 | 中国石油化工股份有限公司 | Precisive ornament casting moulding material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308123A (en) * | 2021-05-12 | 2021-08-27 | 青岛新诺科铸造材料科技有限公司 | Method for casting wax by controlling reaction time and reaction temperature process |
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Application publication date: 20160504 |