CN103084539B - Capillary mold oil for aluminum alloy casting crystallizer and preparation method of aluminum alloy casting capillary mold oil - Google Patents
Capillary mold oil for aluminum alloy casting crystallizer and preparation method of aluminum alloy casting capillary mold oil Download PDFInfo
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- CN103084539B CN103084539B CN201210525270.5A CN201210525270A CN103084539B CN 103084539 B CN103084539 B CN 103084539B CN 201210525270 A CN201210525270 A CN 201210525270A CN 103084539 B CN103084539 B CN 103084539B
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Abstract
The invention discloses a capillary mold oil for an aluminum alloy casting crystallizer and a preparation method of the capillary mold oil. The mold oil comprises the following components: 3 to 5% of di-butane phosphite ester and 95 to 97% of polyoxy butene monobutyl ether. The preparation method of the mold oil comprises the following steps: adding the di-butane phosphite ester to the polyoxy butene monobutyl ether; stirring for about 1 hour at temperature of about 100 DEG C; naturally cooling; and then packaging to obtain the mold oil. The preparation method of the polyoxy butene monobutyl ether comprises the following steps: adding n-butyl alcohol and potassium hydroxide to a polymerizing kettle which is circularly cooled to be about 0 DEG C by brine ice; stirring; charging nitrogen into the polymerizing kettle to convert the air in the kettle; pushing epoxybutane into the polymerizing kettle by the nitrogen when the nitrogen is kept at positive pressure in the polymerizing kettle; stirring and heating to reach 110 to 120 DEG C at the same time; polymerizing for 12 to 13 hours at pressure of 0.25 to 0.35MPa; and extruding the polymer out of the polymerizing kettle through nitrogen, so as to obtain the polyoxy butene monobutyl ether. The mold oil disclosed by the invention is excellent in performance, less in carbon deposition at a high temperature, generates less smoke, can prolong the service life of the casting crystallizer by over 50%, and improves the quality of the surface of aluminum blank.
Description
Technical field
The invention belongs to casting of metals demoulding lubricant grease technical field, be specifically related to a kind of aluminium alloy casting crystallizer capillary mould oil and preparation method thereof.
Background technology
Aluminium alloy processing is cast, and the demoulding is general is traditionally coated with one deck graphited oil at die surface, and the shortcoming of this processing technology is that human cost is high, smears uneven by hand, and smolder during high temperature casting serious, mould is greatly impaired, finished surface poor flatness etc.Owing to there is above many shortcomings, novel casting releasing process adopts crystallizer surface to gather capillary, the vegetable oil such as soya-bean oil are filled with or the good lubricating oil of some high-temperature behaviors carries out lubricating release in capillary, overcome above shortcoming, but the capillary mould oil used at present is often because performance is bad, cause carbon deposit serious, capilar bore often blocks, impact casting stripping result, smolders serious simultaneously.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of function admirable, at high temperature carbon deposit seldom, the smolder service life little, casting crystallizer can be extended aluminium alloy casting crystallizer capillary mould oil improving aluminium base surface quality and preparation method thereof.
The technical scheme that the present invention is adopted for achieving the above object is as follows:
A kind of aluminium alloy casting crystallizer capillary mould oil, wherein each component and percentage by weight as follows:
A, two butane phosphite ester 3-5%
B, polybutylene monobutyl ether 95-97%
Above-mentioned polyoxy butane monobutyl ether actual measurement kinematic viscosity (when 40 DEG C) 400-1200mm
2/ s, kinematic viscosity (100 DEG C) 20-80mm
2/ s, can ensure the flowing of mould oil in capillary and the amount of guaranteeing supply.
The preparation method of above-mentioned aluminium alloy casting crystallizer capillary mould oil is as follows:
Join in B component polybutylene monobutyl ether by component A. bis-butane phosphite ester by weight percentage, stir 1 hours at the temperature of about 100 DEG C, packaging after cooling, namely obtains aluminium alloy casting crystallizer capillary mould oil naturally.
B component polybutylene monobutyl ether in above-mentioned formula, it is by n-butanol and epoxy butane 1:(10-20 in molar ratio) polymerization reaction take place obtains, and its chemical structural formula is:
wherein n is the integer of 10-20.
In above-mentioned mould oil, the preparation method of B component polybutylene monobutyl ether is as follows:
Take in proportion in the hydronic polymeric kettle of brine ice that n-butanol and potassium hydroxide adds with about 0 DEG C and stir, then in polymeric kettle, pass into air in nitrogen conversion still, when nitrogen in polymeric kettle keeps with nitrogen feed tank, epoxy butane being advanced polymeric kettle during malleation, stir simultaneously and be warming up to 110-120 DEG C, pressure is adjusted to 0.25-0.35MPa, after polymerisation 12-13 hour, with polymer-extruded by polymeric kettle of nitrogen, namely obtain polybutylene monobutyl ether (containing potassium hydroxide);
Above-mentioned mole ratio of n-butanol: epoxy butane=1:(10-20);
In above-mentioned polybutylene monobutyl ether, potassium hydroxide accounts for 0.5-1%;
The above-mentioned reaction equation preparing polybutylene monobutyl ether B is:
Wherein n is the integer of 10-20.
In above-mentioned mould oil, the preparation method of component A bis-butane phosphite ester is as follows:
N-butanol in molar ratio: phosphorous acid=2:1 feeds intake and enters in reactor, is filled with nitrogen protection and is heated with stirring to 130-140 DEG C, insulation 3-4 hour, decompression steams moisture, and namely obtain two butane phosphite ester, course of reaction is:
Beneficial effect of the present invention:
In aluminium alloy casting crystallizer capillary mould oil of the present invention formula, two butane phosphite ester have good flame resistance, and stoping burns in aluminium alloy casting cycle smolders; Polyoxy butane monobutyl ether at high temperature carbon residue is few, and being applied to aluminium alloy casting crystallizer can effectively reduce coking and carbon residue.
Aluminium alloy casting crystallizer capillary mould oil function admirable of the present invention, at high temperature carbon deposit is little,
Smolder little, the service life more than 50% of casting crystallizer can be extended, and improve the surface quality of aluminium base.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further detailed explanation.
Embodiment 1:
Step 1: 148.24kg (2000mol) n-butanol and 82kg (1000mol) phosphorous acid are fed intake and enters in reactor, be filled with nitrogen protection and be heated with stirring to 130 DEG C, be incubated 4 hours, decompression steams moisture, obtains two butane phosphite ester 198.2kg (1000mol);
Step 2: by 74.12kg(1000mol) n-butanol and 15kg potassium hydroxide stirs in adding with about 0 DEG C the hydronic polymeric kettle of brine ice, then in polymeric kettle, pass into air in nitrogen conversion still, with nitrogen feed tank, 1442.2kg (20000mol) epoxy butane is advanced polymeric kettle when nitrogen in polymeric kettle keeps malleation, stir simultaneously and be warming up to 110-120 DEG C, pressure is adjusted to 0.25MPa, polymerisation is after 13 hours, with polymer-extruded by polymeric kettle of nitrogen, namely obtain polybutylene monobutyl ether 1531.32kg(containing potassium hydroxide).
Step 3: the two butane phosphite ester 5kg getting step 1 generation add in the polybutylene monobutyl ether of 95kg step 2 generation, stir 1 hours and be aluminium alloy casting crystallizer capillary mould oil at the temperature of about 100 DEG C, naturally packaging after cooling.
The physical and chemical index of the aluminium alloy casting crystallizer capillary mould oil of above-mentioned synthesis is as follows:
Embodiment 2:
Step 1: by 74.12kg(1000mol) n-butanol and 4kg potassium hydroxide stirs in adding with about 0 DEG C the hydronic polymeric kettle of brine ice, then in polymeric kettle, pass into air in nitrogen conversion still, with nitrogen feed tank, 721.1kg (10000mol) epoxy butane is advanced polymeric kettle when nitrogen in polymeric kettle keeps malleation, stir simultaneously and be warming up to 120 DEG C, pressure is adjusted to 0.35MPa, polymerisation is after 14 hours, with polymer-extruded by polymeric kettle of nitrogen, be polybutylene monobutyl ether 799.22kg(containing potassium hydroxide).
Step 2: 148.24kg (2000mol) n-butanol and 82kg (1000mol) phosphorous acid are fed intake and enters in reactor, be filled with nitrogen protection and be heated with stirring to 140 DEG C, be incubated 3 hours, decompression steams moisture, obtains two butane phosphite ester 198.2kg (1000mol);
Step 3: the two butane phosphite ester 3kg getting step 2 generation add in the polybutylene monobutyl ether of 97kg step 1 generation, stir 1 hours and be aluminium alloy casting crystallizer capillary mould oil at the temperature of about 100 DEG C, naturally packaging after cooling.
The physical and chemical index of the aluminium alloy casting crystallizer capillary mould oil of above-mentioned synthesis is as follows:
Embodiment 3:
Step 1: 148.24kg (2000mol) n-butanol and 82kg (1000mol) phosphorous acid are fed intake and enters in reactor, be filled with nitrogen protection and be heated with stirring to 135 DEG C, be incubated 3.5 hours, decompression steams moisture, obtains two butane phosphite ester 198.2kg (1000mol);
Step 2: by 74.12kg(1000mol) n-butanol and 6kg potassium hydroxide stirs in adding with about 0 DEG C the hydronic polymeric kettle of brine ice, then in polymeric kettle, pass into air in nitrogen conversion still, with nitrogen feed tank, 1081.5kg (15000mol) epoxy butane is advanced polymeric kettle when nitrogen in polymeric kettle keeps malleation, stir simultaneously and be warming up to 110-120 DEG C, pressure is adjusted to 0.3MPa, polymerisation is after 13 hours, with polymer-extruded by polymeric kettle of nitrogen, be polybutylene monobutyl ether 1161.62kg(containing potassium hydroxide).
Step 3: the two butane phosphite ester 4kg getting step 1 generation add in the polybutylene monobutyl ether of 96kg step 2 generation, stir 1 hours and be aluminium alloy casting crystallizer capillary mould oil at the temperature of about 100 DEG C, naturally packaging after cooling.
The physical and chemical index of the aluminium alloy casting crystallizer capillary mould oil of above-mentioned synthesis is as follows:
Embodiment 4:
Step 1: 148.24kg (2000mol) n-butanol and 82kg (1000mol) phosphorous acid are fed intake and enters in reactor, be filled with nitrogen protection and be heated with stirring to 136 DEG C, be incubated 3.6 hours, decompression steams moisture, obtains two butane phosphite ester 198.2kg (1000mol);
Step 2: by 74.12kg(1000mol) n-butanol and 8kg potassium hydroxide stirs in adding with about 0 DEG C the hydronic polymeric kettle of brine ice, then in polymeric kettle, pass into air in nitrogen conversion still, with nitrogen feed tank, 1153.76kg (16000mol) epoxy butane is advanced polymeric kettle when nitrogen in polymeric kettle keeps malleation, stir simultaneously and be warming up to 110-120 DEG C, pressure is adjusted to 0.3MPa, polymerisation is after 12.5 hours, with polymer-extruded by polymeric kettle of nitrogen, be polybutylene monobutyl ether 1235.88kg(containing potassium hydroxide).
Step 3: the two butane phosphite ester 4.5kg getting step 1 generation add in the polybutylene monobutyl ether of 95.5kg step 2 generation, stir 1 hours and be aluminium alloy casting crystallizer capillary mould oil at the temperature of about 100 DEG C, naturally packaging after cooling.
Embodiment 5:
Step 1: 148.24kg (2000mol) n-butanol and 82kg (1000mol) phosphorous acid are fed intake and enters in reactor, be filled with nitrogen protection and be heated with stirring to 132 DEG C, be incubated 3.8 hours, decompression steams moisture, obtains two butane phosphite ester 198.2kg (1000mol);
Step 2: by 74.12kg(1000mol) n-butanol and 10kg potassium hydroxide stirs in adding with about 0 DEG C the hydronic polymeric kettle of brine ice, then in polymeric kettle, pass into air in nitrogen conversion still, with nitrogen feed tank, 1009.54kg (14000mol) epoxy butane is advanced polymeric kettle when nitrogen in polymeric kettle keeps malleation, stir simultaneously and be warming up to 115 DEG C, pressure is adjusted to 0.3MPa, polymerisation is after 12.6 hours, with polymer-extruded by polymeric kettle of nitrogen, be polybutylene monobutyl ether 1093.66kg(containing potassium hydroxide).
Step 3: the two butane phosphite ester 3.5kg getting step 1 generation add in the polybutylene monobutyl ether of 96.5kg step 2 generation, stir 1 hours and be aluminium alloy casting crystallizer capillary mould oil at the temperature of about 100 DEG C, naturally packaging after cooling.
Claims (5)
1. an aluminium alloy casting crystallizer capillary mould oil, is characterized in that, wherein each component and percentage by weight as follows: two butane phosphite ester 3-5%
Polybutylene monobutyl ether 95-97%.
2. aluminium alloy casting crystallizer capillary mould oil as claimed in claim 1, it is characterized in that, 40 DEG C of kinematic viscosity of described polybutylene monobutyl ether are 400-1200mm
2/ s, 100 DEG C of kinematic viscosity are 20-80mm
2/ s.
3. aluminium alloy casting crystallizer capillary mould oil as claimed in claim 1 or 2, is characterized in that, described polybutylene monobutyl ether, by n-butanol and epoxy butane 1:(10-20 in molar ratio) polymerization reaction take place obtains, and its chemical formula is:
wherein n is the integer of 10-20.
4. the preparation method of an aluminium alloy casting crystallizer capillary mould oil as claimed in claim 1, it is characterized in that, by weight percentage component A. bis-butane phosphite ester is joined in B component polybutylene monobutyl ether, 1 hours is stirred at the temperature of about 100 DEG C, naturally packaging after cooling, namely obtains aluminium alloy casting crystallizer capillary mould oil.
5. the preparation method of aluminium alloy casting crystallizer capillary mould oil as claimed in claim 4, it is characterized in that, described polybutylene monobutyl ether is prepared by following methods:
Take in proportion in the hydronic polymeric kettle of brine ice that n-butanol and potassium hydroxide adds with about 0 DEG C and stir, then in polymeric kettle, pass into air in nitrogen conversion still, when nitrogen in polymeric kettle keeps with nitrogen feed tank, epoxy butane being advanced polymeric kettle during malleation, stir simultaneously and be warming up to 110-120 DEG C, pressure is adjusted to 0.25-0.35MPa, after polymerisation 12-13 hour, with polymer-extruded by polymeric kettle of nitrogen, namely obtain polybutylene monobutyl ether;
The mol ratio of described n-butanol and epoxy butane is 1:10-20;
Containing potassium hydroxide in above-mentioned polybutylene monobutyl ether, wherein potassium hydroxide accounts for 0.5-1%;
The above-mentioned reaction equation preparing polybutylene monobutyl ether is:
wherein n is the integer of 10-20.
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| CN106914584B (en) * | 2017-04-18 | 2018-10-19 | 上海金兆节能科技有限公司 | A kind of aluminium alloy casting crystallizer mould oil and preparation method thereof |
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Effective date of registration: 20210126 Address after: 226400 No.10 Fandi South Road, juegang Town, Rudong County, Nantong City, Jiangsu Province Patentee after: Rudong industrial and commercial information consulting service center Address before: 200062 414, room second, 1006 Jinsha River Road, Putuo District, Shanghai. Patentee before: SHANGHAI JINZHAO ENERGY-SAVING TECHNOLOGY Co.,Ltd. |
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