CN109702945A - Phenolic resin glass fiber compound material colliery monitoring substation method for producing shell - Google Patents
Phenolic resin glass fiber compound material colliery monitoring substation method for producing shell Download PDFInfo
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- CN109702945A CN109702945A CN201811590176.1A CN201811590176A CN109702945A CN 109702945 A CN109702945 A CN 109702945A CN 201811590176 A CN201811590176 A CN 201811590176A CN 109702945 A CN109702945 A CN 109702945A
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- shell
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- monitoring substation
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Abstract
The invention discloses a kind of phenolic resin glass fiber compound material colliery monitoring substation method for producing shell, comprising the following steps: 1) prepares material: 45% polyvinyl butyral phenol-formaldehyde resin modified, 54% alkali-free glass fibre, 0.5% release agent, 0.5% stable resin emulsifier；Release agent is zinc stearate, and stable resin emulsifier is hexadecyltrimethylammonium chloride；2) chopping, loose wire, drying；3) mixture is weighed according to the weight of colliery monitoring substation shell specification requirement, block is cold-pressed into pre-pressing die；4) housing mould is preheating to 150 DEG C ± 5 DEG C and kept, block filling housing mould is intracavitary；5) upper and lower mould of housing mould is molded, is pressurizeed；6) it is vented；7) continue to continue retention time T at 145 DEG C of temperature and the pressure of setting after exhaust；8) it demoulds.Colliery monitoring substation shell of the present invention substitutes existing metal shell, light, firm, meets the requirement of national standard GB3836.
Description
Technical field
The present invention relates to a kind of colliery monitoring substations more particularly to a kind of phenolic resin glass fiber compound material coal mine to supervise
Substation method for producing shell is controlled, mining equipment technical field is belonged to.
Background technique
Traditional colliery monitoring substation shell is made of metal material.Volume is big and heavy, and a people can not carry, it is necessary to
It could transport and move by the vehicles, movement is extremely inconvenient in mine small space.If light, firm non-gold can be used
Belong to the traditional metal shell of material substitution, then has a vast market application prospect.
Outstation enclosure interior is divided into two cavitys, and explosion-proof chamber and intrinsic safety chamber divide chamber to design, there is power supply change in explosion-proof chamber
Depressor, plug-in power panel, battery pack.Intrinsic safety is intracavitary plug-in outstation mainboard.According to the requirement of national standard GB3836, coal
Mine outstation shell must have the explosion-proof chamber that can bear 1.5MPa pressure, can bear the disengaging of 5000V AC power frequency cable,
Flame proof grade is greater than 5000V, is resistant to 20000 hours aging thermal stability and examines.Therefore, if substituted using nonmetallic materials
Traditional metal shell, then nonmetallic materials shell must satisfy the strict demand of national standard GB3836.
Summary of the invention
The purpose of the present invention is to provide a kind of production of phenolic resin glass fiber compound material colliery monitoring substation shell
Method, using phenolic resin glass fiber compound material, process according to the invention, which is produced, to be met national standard GB3836 and wants
The colliery monitoring substation shell asked, substitutes existing metal shell.
The purpose of the present invention is achieved by the following technical programs:
A kind of phenolic resin glass fiber compound material colliery monitoring substation method for producing shell, comprising the following steps:
1) prepare material: 45% polyvinyl butyral phenol-formaldehyde resin modified, 54% alkali-free glass fibre, 0.5%
Release agent, 0.5% stable resin emulsifier；Release agent is zinc stearate, and stable resin emulsifier is cetyl front three
Ammonium chloride；
2) alkali-free glass fibre cuts into the length of 5-8cm, and with polyvinyl butyral phenol-formaldehyde resin modified, demoulding
Agent, stable resin emulsifier for mixing；Then the mixture mediated is fluffy, drying；
3) mixture is weighed according to the weight of colliery monitoring substation shell specification requirement, bulk is cold-pressed into pre-pressing die
Object, small in size the 30% of the volume ratio colliery monitoring substation shell of block；
4) housing mould is preheating to 150 DEG C ± 5 DEG C and kept, block filling housing mould is intracavitary；
5) upper and lower mould of housing mould is molded, pressure can be increased to housing mould closure and pressurizeed to raw material, really
It protects compressive load per unit area on forming direction and reaches 45 ± 5MPa/cm2；
6) it is exhausted after continuing 60-100 seconds to raw material pressurization, deairing step are as follows: it unloads and is depressed into housing mould no pressure, then
Pressurization, repetitive operation 3-5 times, gas releases in mold；
7) continue to continue retention time T, shell at 145 DEG C of temperature and the pressure of setting after the completion of deairing step
Wall thickness is n millimeters, then retention time T=n minutes；
8) it demoulds.
The purpose of the present invention can also be further realized by following technical measures:
Aforementioned phenolic resin glass fiber compound material colliery monitoring substation method for producing shell, the setting of step 5) pressure
By the following method: shell materials weight is less than or equal to 1 kilogram and is suppressed using 100 t hydraulic press, design of pressure 80T；Shell
Materials weight is greater than 1 kilogram and is less than or equal to 3 kilograms is suppressed with 200 t hydraulic press, design of pressure 160T；Shell materials weight
Amount is greater than 3 kilograms and is suppressed less than 10 kilograms with 315 t hydraulic press, design of pressure 260T.
Compared with prior art, the beneficial effects of the present invention are: the phenolic resin glass fibre of the method for the present invention production is multiple
Condensation material colliery monitoring substation shell, explosion-proof chamber can bear 1.5MPa pressure, can bear the disengaging of 5000V AC power frequency cable,
Flame proof grade is greater than 5000V, is resistant to 20000 hours aging thermal stability and examines.Phenolic resin glass fiber compound material coal
Mine outstation shell substitutes existing metal shell, light, firm, meets the requirement of national standard GB3836.
Detailed description of the invention
Fig. 1 is outstation shell structure front schematic view of the invention；
Fig. 2 is outstation shell structure schematic rear view of the invention.
Specific embodiment
The present invention is further explained in the light of specific embodiments.
According to national standard GB3836 and the standard and requirement of colliery industry, phenolic resin glass fiber compound material coal mine prison
Each technical parameter of control substation shell should meet following index:
Relative density: 1.75-1.85；
Shrinking percentage≤0.15%；
Martin heat resistance >=280 DEG C；
Mobility (La Xige): 80-200mm；
Impact strength >=35KJ/m2；
Bending strength >=120MPa；
Compressive strength >=100MPa；
Tensile strength >=80MPa；
Surface resistivity >=1 × 1012
Volume resistivity >=1 × 1010Ω.cm；
Dielectric strength >=13KV/mm；
Moisture content volatile matter: 3-7.5%.
The structure of phenolic resin glass fiber compound material colliery monitoring substation shell is as shown in Figure 1, 2, production method
It is as follows:
1) prepare material: 45% polyvinyl butyral phenol-formaldehyde resin modified, 54% alkali-free glass fibre, 0.5%
Release agent, 0.5% stable resin emulsifier；Release agent is zinc stearate, and stable resin emulsifier is cetyl front three
Ammonium chloride；
2) alkali-free glass fibre cuts into the length of 5-8cm, and with polyvinyl butyral phenol-formaldehyde resin modified, demoulding
Agent, stable resin emulsifier for mixing；Then the mixture mediated is fluffy, drying；
3) mixture is weighed according to the weight of colliery monitoring substation shell specification requirement, bulk is cold-pressed into pre-pressing die
Object can expand after being heated in subsequent handling due to mixture, the volume of block should than colliery monitoring substation shell at
Product it is small in size, the present embodiment takes small in size the 30% of the volume ratio shell of block, in this way to avoid block-like mixture by
Excessive overlap is thermally expanded and generated after being pressed, materials can be saved；
4) housing mould is preheating to 150 DEG C ± 5 DEG C and kept, block filling housing mould is intracavitary；
5) upper and lower mould of housing mould is molded, when molding is first used quickly, is changed at a slow speed when upper and lower mould contact, first
Prevent mold from abrading slowly after fast；Pressure can be increased to housing mould closure to pressurize to raw material, in molding and pressure process, block
Shape object is heated to be pressurized, and expansion is melted, and is extruded flowing filling to each position of mold；
Mold pressing force is it is ensured that compressive load per unit area reaches 45 ± 5MPa/cm on forming direction2；Specific embodiment party
The engineering method of following simplicity can be used in method: shell materials weight is less than or equal to 1 kilogram, is suppressed using 100 t hydraulic press, hydraulic
Machine design of pressure is 80T；Shell materials weight is greater than 1 kilogram and is less than or equal to 3 kilograms is suppressed with 200 t hydraulic press, hydraulic
Machine design of pressure is 160T；Shell materials weight is greater than 3 kilograms and is suppressed less than 10 kilograms with 315 t hydraulic press, hydraulic press
Design of pressure is 260T；
6) it is exhausted after continuing 60-100 seconds to raw material pressurization, deairing step are as follows: it unloads and is depressed into housing mould no pressure, then
Pressurization, repetitive operation 3-5 times, gas releases in mold；Bleeding can shorten curing time, improve the physics of shell
Mechanical performance avoids enclosure interior from occurring being layered and bubble；
7) solidify: continuing the retention time T at 145 DEG C of temperature and the pressure of setting after the completion of deairing step, make
The curing reaction of resin reaches requirement, and shell wall thickness is n millimeter, then and retention time T=n minutes, such as: wall thickness is 25 millimeters,
Pressure maintaining 25 minutes；
8) demoulded using knock-pin, after demoulding, by shell burr repair to the greatest extent, and with sand paper polish shell.
Phenolic resin glass fiber compound material colliery monitoring substation shell meets above-mentioned each technical parameter index, explosion-proof chamber
1.5MPa pressure can be born, the disengaging of 5000V AC power frequency cable can be born, flame proof grade is greater than 5000V, by actual measurement, energy
It is resistant to 20000 hours aging thermal stability to examine, meets the requirement of national standard GB3836.
In addition to the implementation, the present invention can also have other embodiments, all to use equivalent substitution or equivalent transformation shape
At technical solution, be all fallen within the protection domain of application claims.
Claims (2)
1. a kind of phenolic resin glass fiber compound material colliery monitoring substation method for producing shell, which is characterized in that including with
Lower step:
1) prepare material: 45% polyvinyl butyral phenol-formaldehyde resin modified, 54% alkali-free glass fibre, 0.5% it is de-
Mould agent, 0.5% stable resin emulsifier；Release agent is zinc stearate, and stable resin emulsifier is cetyl trimethyl chlorine
Change ammonium；
2) alkali-free glass fibre cuts into the length of 5-8cm, and with polyvinyl butyral phenol-formaldehyde resin modified, release agent,
Stable resin emulsifier for mixing；Then the mixture mediated is fluffy, drying；
3) mixture is weighed according to the weight of colliery monitoring substation shell specification requirement, block is cold-pressed into pre-pressing die,
Small in size the 30% of the volume ratio colliery monitoring substation shell of block；
4) housing mould is preheating to 150 DEG C ± 5 DEG C and kept, block filling housing mould is intracavitary；
5) upper and lower mould of housing mould is molded, pressure can be increased to housing mould closure and pressurizeed to raw material, it is ensured that at
Compressive load per unit area reaches 45 ± 5MPa/cm on type direction2；
6) it is exhausted after continuing 60-100 seconds to raw material pressurization, deairing step are as follows: it unloads and is depressed into housing mould no pressure, then plus
Pressure, repetitive operation 3-5 times release gas in mold；
7) continue to continue retention time T, shell wall thickness at 145 DEG C of temperature and the pressure of setting after the completion of deairing step
It is n millimeters, then retention time T=n minutes；
8) it demoulds.
2. phenolic resin glass fiber compound material colliery monitoring substation method for producing shell as described in claim 1, special
Sign is, the setting of the step 5) pressure by the following method: shell materials weight be less than or equal to 1 kilogram it is hydraulic using 100 tons
Machine compacting, design of pressure 80T；Shell materials weight is greater than 1 kilogram and is less than or equal to 3 kilograms is suppressed with 200 t hydraulic press,
Design of pressure is 160T；Shell materials weight is greater than 3 kilograms and is suppressed less than 10 kilograms with 315 t hydraulic press, and pressure value is set
It is set to 260T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811590176.1A CN109702945A (en) | 2018-12-25 | 2018-12-25 | Phenolic resin glass fiber compound material colliery monitoring substation method for producing shell |
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|---|---|---|---|
| CN201811590176.1A CN109702945A (en) | 2018-12-25 | 2018-12-25 | Phenolic resin glass fiber compound material colliery monitoring substation method for producing shell |
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| CN201811590176.1A Pending CN109702945A (en) | 2018-12-25 | 2018-12-25 | Phenolic resin glass fiber compound material colliery monitoring substation method for producing shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815177A (en) * | 2021-08-16 | 2021-12-21 | 维达力实业（赤壁）有限公司 | Compression molding method of composite board, composite board cover plate and preparation method thereof |
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| US20110239851A1 (en) * | 2010-03-29 | 2011-10-06 | Jeff Mason | Ballistic structural insulated panel |
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2018
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|---|---|---|---|---|
| EP0061132A2 (en) * | 1981-03-16 | 1982-09-29 | Nissan Motor Co., Ltd. | Reinforcing member and its use for reinforcing a panel of an automobile |
| EP0370991A2 (en) * | 1988-11-23 | 1990-05-30 | Recticel | Compressing and shaping thermoformable mats using superheated steam |
| CN104669645A (en) * | 2007-10-03 | 2015-06-03 | 阿克塞尔集团有限公司 | Method Of Forming Composite Products By Pressure, Related Products And Apparatus |
| US20110239851A1 (en) * | 2010-03-29 | 2011-10-06 | Jeff Mason | Ballistic structural insulated panel |
| CN105219017A (en) * | 2015-10-14 | 2016-01-06 | 常州市宏发纵横新材料科技股份有限公司 | The preparation method of heat-reactive phenolic resin matrix material |
| CN107325481A (en) * | 2017-08-16 | 2017-11-07 | 常州信息职业技术学院 | A kind of phenoplasts inspection shaft well lid and preparation method thereof |
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| 七六一一课题组: "FX-530塑料的研制", 《工程塑料应用》 * |
| 冯胜: "《精细化工手册 （下册）》", 30 March 1995, 广东科技出版社 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815177A (en) * | 2021-08-16 | 2021-12-21 | 维达力实业（赤壁）有限公司 | Compression molding method of composite board, composite board cover plate and preparation method thereof |
| CN113815177B (en) * | 2021-08-16 | 2023-11-07 | 维达力科技股份有限公司 | Compression molding method of composite board, composite board cover plate and preparation method of composite board cover plate |
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