CN105315960A - Hot melt adhesive used for processing and positioning blades and preparation method of hot melt adhesive - Google Patents
Hot melt adhesive used for processing and positioning blades and preparation method of hot melt adhesive Download PDFInfo
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- CN105315960A CN105315960A CN201510812543.8A CN201510812543A CN105315960A CN 105315960 A CN105315960 A CN 105315960A CN 201510812543 A CN201510812543 A CN 201510812543A CN 105315960 A CN105315960 A CN 105315960A
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- hot melt
- melt adhesive
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Abstract
The invention relates to an adhesive and a preparation method thereof, in particular to a hot melt adhesive used for processing and positioning blades and a preparation method of the hot melt adhesive. According to the technical scheme, the hot melt adhesive is prepared from, by weight, 50-150 parts of ethylene-vinyl acetate (EVA) copolymers, 20-40 parts of paraffin, 20-50 parts of calcium strarate, 200-600 parts of rosin, 10-500 parts of terpene resin and 100-1000 parts of carborundum. The hot melt adhesive has high bonding strength and hardness and excellent heat resistance and size stability, and can be used for fixing, processing and positioning high-temperature alloy blades.
Description
Technical field
The present invention relates to a kind of tackiness agent and preparation method thereof, be specifically related to a kind of hot melt adhesive for blade processing location and preparation method thereof.
Background technology
The processing at the tenon position of high-temperature alloy blades, because blade is that abnormity shape cannot clamp, needs blade blade to be fixed, then the fixture of fixing blade is clipped in lathe and processes, make tenon be worked into specified requirement.At present, what common steel blade adopted is low melting point alloy.Low melting point alloy is made up of the metallic tin of low melting point and bismuth, because it has high temperature corrosion effect to superalloy, and can not be used for the location of high-temperature alloy blades.
Summary of the invention
The invention provides a kind of hot melt adhesive for blade processing location, have compared with high-adhesive-strength, hardness and excellent thermotolerance and dimensional stability, can be used in high-temperature alloy blades and fix locating and machining.
Technical scheme of the present invention is:
For a hot melt adhesive for blade processing location, as follows by weight ratio: ethylene-vinyl acetate copolymer EVA50 ~ 150 part, 20 ~ 40 parts, paraffin, calcium stearate 20 ~ 50 parts, rosin 200 ~ 600 parts, terpine resin 10 ~ 500 parts, powder emery 100 ~ 1000 parts.
A preparation method for the above-mentioned hot melt adhesive for blade processing location, comprises the steps:
1) 4h is calcined by powder emery 500 DEG C in an oven ± 10 DEG C;
2) weigh in the balance by described proportioning and get batching: ethylene-vinyl acetate copolymer EVA, paraffin, calcium stearate, rosin, terpine resin and powder emery, and join in this order in container, do not exceed 2/3rds of container;
3) said vesse that batching is housed to be placed in baking oven 170 DEG C ~ 180 DEG C and to heat about 2h, batching wherein is fully melted, and there is good mobility, stir in heat-processed, put into vacuum drying oven and carry out heat de-airing bubble, obtained hot melt adhesive.
Ethylene-vinyl acetate copolymer EVA in the present invention, as basal component, be solid at normal temperatures, heating and melting becomes can flow to certain temperature, and has certain viscosity.Add paraffin, be used for regulating the fusing point of hot melt adhesive, also can reduce costs.Add terpine resin, improve oxidation-resistance, to extend the reusable number of times of this hot melt adhesive tackiness agent.Add rosin, increase the initial viscosity of whole tackiness agent, improve the bonding strength of tackiness agent, ensure sizing accuracy.Add powder emery, the temperature capability of tackiness agent can be improved, reduce tackiness agent shrinking percentage, improve dimensional stability, ensure the precision of sizing.Add calcium stearate, in order to the tackiness agent after solidifying is easy to deviate from from mould.
Beneficial effect of the present invention is:
1) hot melt adhesive of the present invention has excellent high temperature resistance performance; Higher bonding force; Superior dimensional stability; Shrinking percentage is little; Non-corrosiveness.
2) in high-temperature alloy blades locating and machining: fundamentally solve high-temperature alloy blades location difficulty.
Embodiment
As follows for the performance index of various component in the hot melt adhesive of blade processing location:
The multipolymer EVA of ethylene-vinyl acetate: vinyl acetate content is 20% ~ 28%; Paraffin: fusing point is 54 ~ 68 DEG C; Calcium stearate fusing point is 120 ~ 140 DEG C; Rosin: softening temperature 50 ~ 70 DEG C; Terpine resin: softening temperature is 80 ~ 140 DEG C; Powder emery: proportion is 3.20 ~ 3.25, microhardness 2840 ~ 3320Kg/mm
2.Various proportioning mode is as following table:
| Title material | Proportioning one | Proportioning two | Proportioning three | Proportioning four | Proportioning five |
| Multipolymer EVA | 50 | 70 | 100 | 120 | 150 |
| Paraffin | 20 | 25 | 30 | 35 | 40 |
| Calcium stearate | 20 | 25 | 35 | 48 | 50 |
| Rosin | 200 | 350 | 400 | 430 | 600 |
| Terpine resin | 10 | 14 | 100 | 300 | 500 |
| Powder emery | 100 | 150 | 300 | 550 | 1000 |
In the course of processing of the high-temperature alloy blades of engine, have employed hot melt adhesive of the present invention, very strong fixed action can be had to blade, its tenon position is effectively processed, in the process of processing, do not loosen phenomenon, guarantee that relative dimensions reaches design requirements, prove that this tackiness agent does not have corrodibility to high-temperature alloy blades.
Claims (2)
1. the hot melt adhesive for blade processing location, it is characterized in that, as follows by weight ratio: ethylene-vinyl acetate copolymer EVA50 ~ 150 part, 20 ~ 40 parts, paraffin, calcium stearate 20 ~ 50 parts, rosin 200 ~ 600 parts, terpine resin 10 ~ 500 parts, powder emery 100 ~ 1000 parts.
2., as claimed in claim 1 for a preparation method for the hot melt adhesive of blade processing location, it is characterized in that, comprise the steps:
1) 4h is calcined by powder emery 500 DEG C in an oven ± 10 DEG C;
2) weigh in the balance by described proportioning and get batching: ethylene-vinyl acetate copolymer EVA, paraffin, calcium stearate, rosin, terpine resin and powder emery, and join in this order in container, do not exceed 2/3rds of container;
3) said vesse that batching is housed to be placed in baking oven 170 DEG C ~ 180 DEG C and to heat about 2h, batching wherein is fully melted, and there is good mobility, stir in heat-processed, put into vacuum drying oven and carry out heat de-airing bubble, obtained hot melt adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812543.8A CN105315960A (en) | 2015-11-20 | 2015-11-20 | Hot melt adhesive used for processing and positioning blades and preparation method of hot melt adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812543.8A CN105315960A (en) | 2015-11-20 | 2015-11-20 | Hot melt adhesive used for processing and positioning blades and preparation method of hot melt adhesive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105315960A true CN105315960A (en) | 2016-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812543.8A Pending CN105315960A (en) | 2015-11-20 | 2015-11-20 | Hot melt adhesive used for processing and positioning blades and preparation method of hot melt adhesive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105315960A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190985A (en) * | 2010-03-15 | 2011-09-21 | 张耀华 | Method for producing general-purpose hot melt adhesive |
| CN102965071A (en) * | 2012-11-18 | 2013-03-13 | 云南光电辅料有限公司 | Hot melt adhesive for positioning and processing of brittle materials and preparation method of hot melt adhesive |
-
2015
- 2015-11-20 CN CN201510812543.8A patent/CN105315960A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190985A (en) * | 2010-03-15 | 2011-09-21 | 张耀华 | Method for producing general-purpose hot melt adhesive |
| CN102965071A (en) * | 2012-11-18 | 2013-03-13 | 云南光电辅料有限公司 | Hot melt adhesive for positioning and processing of brittle materials and preparation method of hot melt adhesive |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160210 |