CN101775229A - High-temperature pressure-bearing composite insulator composition of corrosion-resistant gas and preparation method thereof - Google Patents
High-temperature pressure-bearing composite insulator composition of corrosion-resistant gas and preparation method thereof Download PDFInfo
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- CN101775229A CN101775229A CN201010013560A CN201010013560A CN101775229A CN 101775229 A CN101775229 A CN 101775229A CN 201010013560 A CN201010013560 A CN 201010013560A CN 201010013560 A CN201010013560 A CN 201010013560A CN 101775229 A CN101775229 A CN 101775229A
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Abstract
The invention discloses a high-temperature pressure-bearing composite insulator composition of a corrosion-resistant gas and a preparation method thereof. The composition consists of the following components in part by mass: 75 to 85 parts of glass fiber yarn and 25 to 15 parts of resin adhesive. The preparation method comprises the following steps: selection of the glass fiber yarn; surface treatment of the glass fiber yarn; selection of the resin adhesive; a process of winding; cold press molding; injection molding of resin: closing an upper valve and a lower valve of a preforming mold, and putting the preforming mold into oil for heating, orderly dividing the temperature of the oil into three sections, and heating and demolding to finish a high-temperature pressure-bearing composite insulator which can resist the stress corrosion of H2S and CO2; and performance test, wherein if a measured insulation value is greater than or equal to 500MPa, the high-temperature pressure-bearing composite insulator is a qualified product. The high-temperature pressure-bearing composite insulator effectively prevents the immersion and the stress corrosion of harmful gases such as hydrogen sulfide and carbon dioxide of the outer surface of an oil well logging tool, prolongs the service life of the oil well logging tool, saves well logging time and increases well logging speed. Therefore, the high-temperature pressure-bearing composite insulator is widely used for oil exploration instruments and the places where corrosive gases can immerse.
Description
Technical field
The present invention relates to the insulating material of withstand corrosion gas, be specifically related to the high-temperature pressure-bearing composite insulator composition and the preparation method of corrosion-resistant gas.
Background technology
The oil well logging instrument that uses in the oil-field development, the maximum technical barrier that often runs in the well logging process is: oil well logging instrument is at down-hole high temperature, high pressure, oil, gas, water and obnoxious flavour hydrogen sulfide (H
2S), carbonic acid gas (CO
2) the complex dielectrics environment that waits uses down, has the oil well logging instrument probe position hydrogen (H that cures easily
2S), carbonic acid gas (CO
2) gaseous corrosion, even a bite well has not been surveyed in the well logging process, the probe position of the oil well logging instrument hydrogen (H that just cures
2S), carbonic acid gas (CO
2) gaseous corrosion, badly influence work-ing life of oil well logging instrument.Existing domestic best viton envelope system also fails to solve this technical barrier.
Summary of the invention
The purpose of this invention is to provide a kind of long service life, the high-temperature pressure-bearing composite insulator composition of the corrosion-resistant gas of anti-hydrogen sulfide, carbon dioxide corrosive oil well logging instrument.
Another object of the present invention provides the preparation method of composite insulator.
In order to overcome the deficiencies in the prior art, technical scheme of the present invention is to solve like this: a kind of pressure-bearing composite insulator composition of withstand corrosion gas, press this composite insulator composition of mass ratio by 75 parts～85 parts glass fiber yarns, 25～15 parts of Resin adhesives are formed.
Described glass fiber yarn is the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope is 600tex-2400tex.
A kind of preparation method of described composite insulator, undertaken by following step:
1), the selection of glass fiber yarn
Glass fiber yarn uses the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope must be coated with special-purpose treating compound by the useful glass fiber yarn of 600tex-2400tex.;
2), the surface treatment of glass fiber yarn
Because of existing micro-space between glass fiber yarn and the resin boundary surface, capillary action makes moisture content infiltrate complex body inside along the interface, and further weaken the cohesiveness of resin and glass fiber yarn, physics, the chemical property of matrix material are descended, for this reason, select KH560 for use, Y-aminopropyl triethoxysilane NH
2-CH
2-CH
2-CH
2-Si-COC
2H
5As the glass fiber yarn coupling agent; Its coupling agent and glass fiber yarn mass ratio are coupling agent: glass fiber yarn=1.5 part～2 parts: 98.5 parts～98 parts, the result of coupling agent and glass fiber yarn surface action generates firm covalent linkage;
3), Resin adhesive chooses
In order to make composite insulator that resistance to elevated temperatures be arranged, when choosing resin, require resin normal high-temperature resin that uses in 250 ℃ of following scopes;
1., resin requires: viscosity is low, the whole glass fiber yarn hyperergy of porous, cure shrinkage is low;
2., the preparation of Resin adhesive
Prevent the cracking material by quality by 0.2 part～0.7 part of 98 parts～100 parts resin, 0.1 part～0.4 part of hydrophobic material, 1 part～3 parts high-abrasive materials, 0.03 part～0.08 part of defoamer composition, wherein said anti-cracking material is a poly sebacic polyanhydride, described hydrophobic material is a thiorubber, and described high-abrasive material is a nanometer grade silica, and described defoamer is 550;
3., the sizing material for preparing is poured in the vacuum stirring device, stirred 20 minutes, left standstill 1 hour;
4), winding working procedure
1. to twine the terylene layer of cloth on core thick to 2.5mm for first internal layer;
2. the second layer twines and to choose winding angle by structural strength requirements, twine glass fiber yarn extremely than the external diameter of structural requirement less than 2.5mm;
3. the 3rd layer is outer, twines the size that residue requires again with woven dacron;
4., the hoop+spirrillum that is wound up as of woven dacron, glass fiber yarn is twined;
5), coldmoulding
The internal mold that winds glass fiber yarn is put in the outer shaping mould, and outer shaping mould is made with steel, for cooperating mould, two modules are contained on the steelframe up and down, and two-half die cooperates the back to seal with rubber gasket, and fixes with floating holder, the after-applied 0.5Mpa pressure of matched moulds, 70 ℃ of constant temperature.
6), resin injection molding
Sizing material after leaving standstill is poured in the vacuum resin jar, sizing material is sent into and is filled with by pipeline in the whole premolding die cavity in the vacuum resin jar, the premolding die cavity the other end connects a pipeline and leads to resin trap, and another outlet of resin trap is connected with vacuum pump by pipeline;
7), close the last lower valve of preforming tool, preforming tool is put into oil heat, the temperature of oil is divided into three sections successively, and heating is 0.5-1.5 hour in the time of 80 ℃-100 ℃, heating is 1.5-2.5 hour in the time of 130 ℃-160 ℃, and heating is 2.5-3.5 hour in the time of 180 ℃-246 ℃;
8), the demoulding when composite insulator that is cured treats that temperature is reduced to 70 ℃, a kind of like this ability H
2S, CO
2The high-temperature pressure-bearing composite insulator of stress corrosion is finished;
9), performance test:
Test index: in temperature is that 246 ℃, pressure are that 140Mpa measures insulation values 〉=500M Ω and is qualified product.
The present invention compared with prior art, high-temperature pressure-bearing composite insulator has stoped hydrogen sulfide (H effectively
2S), carbonic acid gas (CO
2) obnoxious flavour immerses and stress corrosion oil well logging instrument outside surface, prolonged oil well logging instrument work-ing life, thereby bring benefit for the logging instrumentation applying unit.Thoroughly solved the technical barrier of domestic and international concern.The troop of CNPC's well logging at present, Sinopec well logging, Chinese offshore logging, prolongation oil well logging has more than 1000, supporting have viton to prop up as surface abrasion resistance isolator instrument hundreds of thousands of, if with its transformation, can save nearly ten million Renminbi every year, and saved the well logging time, improved logging speed.Be widely used in petroleum exploration instrument and have etchant gas submerged place to use.
Description of drawings
Fig. 1 is a glass fiber yarn surface treatments schematic block diagram of the present invention;
Fig. 2 is glass fiber yarn hoop+spirrillum winding arrangement schematic block diagram;
Fig. 3 is a glass fiber yarn resin injection molding structural representation FB(flow block).
Embodiment
Accompanying drawing is embodiments of the invention.
Below in conjunction with accompanying drawing summary of the invention is described further:
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 75 parts～85 parts glass fiber yarns, and 25～15 parts of Resin adhesives are formed.
Described glass fiber yarn is the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope is 600tex-2400tex.
A kind of preparation method of composite insulator, undertaken by following step:
1), the selection of glass fiber yarn
Glass fiber yarn uses the non-twist direct yarn of no boron alkali-free, and its fiber dimensious scope must be coated with special-purpose treating compound by the useful glass fiber yarn of 600tex-2400tex.;
2), the surface treatment of glass fiber yarn
Because of existing micro-space between glass fiber yarn and the resin boundary surface, capillary action makes moisture content infiltrate complex body inside along the interface, and further weaken the cohesiveness of resin and glass fiber yarn, physics, the chemical property of matrix material are descended, for this reason, select KH560 for use, Y-aminopropyl triethoxysilane NH
2-CH
2-CH
2-CH
2-Si-COC
2H
5As the glass fiber yarn coupling agent; Its coupling agent and glass fiber yarn mass ratio are coupling agent: glass fiber yarn=1.5 part～2.5 parts: 98.5 parts～97.5 parts, the result of coupling agent and glass fiber yarn surface action generates firm covalent linkage;
3), Resin adhesive chooses
In order to make composite insulator that resistance to elevated temperatures be arranged, when choosing resin, require resin normal high-temperature resin that uses in 250 ℃ of following scopes;
1., resin requires: viscosity is low, the whole glass fiber yarn hyperergy of porous, cure shrinkage is low;
2., the preparation of Resin adhesive
Prevent the cracking material by quality by 0.2 part～0.7 part of 98 parts～100 parts resin, 0.1 part～0.4 part of hydrophobic material, 1 part～3 parts high-abrasive materials, 0.03 part～0.08 part of defoamer composition, wherein said anti-cracking material is a poly sebacic polyanhydride, described hydrophobic material is a thiorubber, and described high-abrasive material is a nanometer grade silica, and described defoamer is 550;
3., the sizing material for preparing is poured in the vacuum stirring device, stirred 20 minutes, left standstill 1 hour;
4), winding working procedure
1. to twine the terylene layer of cloth on core thick to 2.5mm for first internal layer;
2. the second layer twines and to choose winding angle by structural strength requirements, twine glass fiber yarn extremely than the external diameter of structural requirement less than 2.5mm;
3. the 3rd layer is outer, twines the size that residue requires again with woven dacron;
4., the hoop+spirrillum that is wound up as of woven dacron, glass fiber yarn is twined;
5), coldmoulding
The internal mold that winds glass fiber yarn is put in the outer shaping mould, and outer shaping mould is made with steel, for cooperating mould, two modules are contained on the steelframe up and down, and two-half die cooperates the back to seal with rubber gasket, and fixes with floating holder, the after-applied 0.5Mpa pressure of matched moulds, 70 ℃ of constant temperature.
6), resin injection molding
Sizing material after leaving standstill is poured in the vacuum resin jar, sizing material is sent into and is filled with by pipeline in the whole premolding die cavity in the vacuum resin jar, the premolding die cavity the other end connects a pipeline and leads to resin trap, and another outlet of resin trap is connected with vacuum pump by pipeline;
7), close the last lower valve of preforming tool, preforming tool is put into oil heat, the temperature of oil is divided into three sections successively, and heating is 0.5-1.5 hour in the time of 80 ℃-100 ℃, heating is 1.5-2.5 hour in the time of 130 ℃-160 ℃, and heating is 2.5-3.5 hour in the time of 180 ℃-246 ℃;
8), the demoulding when composite insulator that is cured treats that temperature is reduced to 70 ℃, a kind of like this ability H
2S, CO
2The high-temperature pressure-bearing composite insulator of stress corrosion is finished;
9), performance test:
Test index: in temperature is that 246 ℃, pressure are that 140Mpa measures insulation values 〉=500M Ω and is qualified product.
Embodiment 1
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 75 parts～85 parts glass fiber yarns, and 25 parts～15 parts Resin adhesives are formed.
A kind of preparation method of composite insulator, undertaken by following step:
1), the selection of glass fiber yarn
Glass fiber yarn uses the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope must be coated with special-purpose treating compound by the useful glass fiber yarn of 600tex-2400tex.;
2), the surface treatment of glass fiber yarn
Because of existing micro-space between glass fiber yarn and the resin boundary surface, capillary action makes moisture content infiltrate complex body inside along the interface, and further weaken the cohesiveness of resin and glass fiber yarn, physics, the chemical property of matrix material are descended, for this reason, select KH560 for use, Y-aminopropyl triethoxysilane NH
2-CH
2-CH
2-CH
2-Si-COC
2H
5As the glass fiber yarn coupling agent; Its coupling agent and glass fiber yarn mass ratio are coupling agent: glass fiber yarn=1.5 part～2.5 parts: 98.5 parts～97.5 parts, the result of coupling agent and glass fiber yarn surface action generates firm covalent linkage;
3), Resin adhesive chooses
In order to make composite insulator that resistance to elevated temperatures be arranged, when choosing resin, require resin normal high-temperature resin that uses in 250 ℃ of following scopes;
1., resin requires: viscosity is low, the whole glass fiber yarn hyperergy of porous, cure shrinkage is low;
2., the preparation of Resin adhesive
Prevent the cracking material by quality by 0.2 part～0.7 part of 98 parts～100 parts resin, 0.1 part～0.4 part of hydrophobic material, 1 part～3 parts high-abrasive materials, 0.03 part～0.08 part of defoamer composition, wherein said anti-cracking material is a poly sebacic polyanhydride, described hydrophobic material is a thiorubber, and described high-abrasive material is a nanometer grade silica, and described defoamer is 550;
3., the sizing material for preparing is poured in the vacuum stirring device, stirred 20 minutes, left standstill 1 hour;
4), winding working procedure
1. to twine the terylene layer of cloth on core thick to 2.5mm for first internal layer;
2. the second layer twines and to choose winding angle by structural strength requirements, twine glass fiber yarn extremely than the external diameter of structural requirement less than 2.5mm;
3. the 3rd layer is outer, twines the size that residue requires again with woven dacron;
4., the hoop+spirrillum that is wound up as of woven dacron, glass fiber yarn is twined;
5), coldmoulding
The internal mold that winds glass fiber yarn is put in the outer shaping mould, and outer shaping mould is made with steel, for cooperating mould, two modules are contained on the steelframe up and down, and two-half die cooperates the back to seal with rubber gasket, and fixes with floating holder, the after-applied 0.5Mpa pressure of matched moulds, 70 ℃ of constant temperature.
6), resin injection molding
Sizing material after leaving standstill is poured in the vacuum resin jar, sizing material is sent into and is filled with by pipeline in the whole premolding die cavity in the vacuum resin jar, the premolding die cavity the other end connects a pipeline and leads to resin trap, and another outlet of resin trap is connected with vacuum pump by pipeline;
7), close the last lower valve of preforming tool, preforming tool is put into oil heat, the temperature of oil is divided into three sections successively, and heating is 0.5-1.5 hour in the time of 80 ℃-100 ℃, heating is 1.5-2.5 hour in the time of 130 ℃-160 ℃, and heating is 2.5-3.5 hour in the time of 180 ℃-246 ℃;
8), the demoulding when composite insulator that is cured treats that temperature is reduced to 70 ℃, a kind of like this ability H
2S, CO
2The high-temperature pressure-bearing composite insulator of stress corrosion is finished;
9), performance test:
Test index: in temperature is that 246 ℃, pressure are that 140Mpa measures insulation values 〉=500M Ω and is qualified product.
With reference to shown in Figure 1, glass fiber yarn enters the coupling agent treatment chamber by dance roller glass fiber yarn is soaked into, and the glass fiber yarn after the infiltration is wound on the bobbins by guide deflection sheave again, and is stand-by;
Figure 2 shows that glass fiber yarn hoop+spirrillum winding arrangement schematic block diagram.Glass fiber yarn on the bobbins and woven dacron hoop+spirrillum are wound on the core, and be stand-by;
Figure 3 shows that glass fiber yarn resin injection molding structural representation FB(flow block), sizing material after leaving standstill is poured in the vacuum resin jar, premolding die cavity one end connects a pipeline and leads to resin trap, another outlet of resin trap is connected with vacuum pump by pipeline, after vacuum pump is opened, because sizing material enters in the premolding die cavity in the suction function resin container, after treating that the resin sizing material is full of the premolding die cavity fully, unnecessary sizing material is extracted in the resin trap, after finishing the coldmoulding operation, carry out that below preforming tool is put into oil again and heat, demolding after cooling is promptly finished the whole flow process of product.
Embodiment 2
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 77 parts～83 parts glass fiber yarns, and 23 parts～17 parts Resin adhesives are formed.
A kind of preparation method of composite insulator, undertaken by following step:
1), the selection of glass fiber yarn
Glass fiber yarn uses the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope must be coated with special-purpose treating compound by the useful glass fiber yarn of 600tex-2400tex.;
2), the surface treatment of glass fiber yarn
Because of existing micro-space between glass fiber yarn and the resin boundary surface, capillary action makes moisture content infiltrate complex body inside along the interface, and further weaken the cohesiveness of resin and glass fiber yarn, physics, the chemical property of matrix material are descended, for this reason, select KH560 for use, Y-aminopropyl triethoxysilane NH
2-CH
2-CH
2-CH
2-Si-COC
2H
5As the glass fiber yarn coupling agent; Its coupling agent and glass fiber yarn mass ratio are coupling agent: glass fiber yarn=1.8 part～2.2 parts: 98.2 parts～97.8 parts, the result of coupling agent and glass fiber yarn surface action generates firm covalent linkage;
3), Resin adhesive chooses
In order to make composite insulator that resistance to elevated temperatures be arranged, when choosing resin, require resin normal high-temperature resin that uses in 250 ℃ of following scopes;
1., resin requires: viscosity is low, the whole glass fiber yarn hyperergy of porous, cure shrinkage is low;
2., the preparation of Resin adhesive
Prevent the cracking material by quality by 0.2 part～0.7 part of 98.5 parts～99.5 parts resin, 0.1 part～0.4 part of hydrophobic material, 1 part～3 parts high-abrasive materials, 0.03 part～0.08 part of defoamer composition, wherein said anti-cracking material is a poly sebacic polyanhydride, described hydrophobic material is a thiorubber, and described high-abrasive material is a nanometer grade silica, and described defoamer is 550;
3., the sizing material for preparing is poured in the vacuum stirring device, stirred 20 minutes, left standstill 1 hour;
4), winding working procedure
1. to twine the terylene layer of cloth on core thick to 2.5mm for first internal layer;
2. the second layer twines and to choose winding angle by structural strength requirements, twine glass fiber yarn extremely than the external diameter of structural requirement less than 2.5mm;
3. the 3rd layer is outer, twines the size that residue requires again with woven dacron;
4., the hoop+spirrillum that is wound up as of woven dacron, glass fiber yarn is twined;
5), coldmoulding
The internal mold that winds glass fiber yarn is put in the outer shaping mould, and outer shaping mould is made with steel, for cooperating mould, two modules are contained on the steelframe up and down, and two-half die cooperates the back to seal with rubber gasket, and fixes with floating holder, the after-applied 0.5Mpa pressure of matched moulds, 70 ℃ of constant temperature.
6), resin injection molding
Sizing material after leaving standstill is poured in the vacuum resin jar, sizing material is sent into and is filled with by pipeline in the whole premolding die cavity in the vacuum resin jar, the premolding die cavity the other end connects a pipeline and leads to resin trap, and another outlet of resin trap is connected with vacuum pump by pipeline;
7), close the last lower valve of preforming tool, preforming tool is put into oil heat, the temperature of oil is divided into three sections successively, and heating is 0.5-1.5 hour in the time of 80 ℃-100 ℃, heating is 1.5-2.5 hour in the time of 130 ℃-160 ℃, and heating is 2.5-3.5 hour in the time of 180 ℃-246 ℃;
8), the demoulding when composite insulator that is cured treats that temperature is reduced to 70 ℃, a kind of like this ability H
2S, CO
2The high-temperature pressure-bearing composite insulator of stress corrosion is finished;
9), performance test:
Test index: in temperature is that 246 ℃, pressure are that 140Mpa measures insulation values 〉=500M Ω and is qualified product.
Embodiment 3
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 78 parts～82 parts glass fiber yarns, and 22 parts～18 parts Resin adhesives are formed, and the preparation method is with embodiment 1.
Embodiment 4
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 78 parts of glass fiber yarns, and 22 parts of Resin adhesives are formed, and the preparation method is with embodiment 2.
Embodiment 5
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 82 parts of glass fiber yarns, and 18 parts of Resin adhesives are formed, and the preparation method is with embodiment 1.
Embodiment 6
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 87 parts of glass fiber yarns, and 20 parts of Resin adhesives are formed, and the preparation method is with embodiment 1
Embodiment 7
A kind of pressure-bearing composite insulator composition of withstand corrosion gas, composite insulator composition is pressed mass ratio, and said composition is by 80 parts of glass fiber yarns, and 20 parts of Resin adhesives are formed, and the preparation method is with embodiment 2
In sum, though glass fiber yarn has very high intensity, but its property is crisp, not wear-resisting, the friction back is static electrification easily, and smooth surface is difficult for resin-bonded, therefore must be to the processing that is covered of glass fiber yarn surface, just can enter the processing of road, back, make various goods, could produce and the good cohesiveness of resin.
How to solve the problem that combines between glass fiber yarn and the resin boundary surface, this combination may be a physical adhesion, may be chemical bonding also, have only chemical bonding just can make the strongest connection of generation between glass fiber yarn and the resin, the instrument of realizing this chemical bonding be exactly a coupling agent.
Glass fiber yarn goods without coupling processing, exist micro-space between fiber and the resin boundary surface, capillary action makes moisture content infiltrate complex body inside along the interface, and further weakens the bonding of resin and glass fiber yarn, and the physics of matrix material, chemical property are descended.
Claims (3)
1. the high-temperature pressure-bearing composite insulator composition of a corrosion-resistant gas is characterized in that by quality that than said composition by 75 parts～85 parts glass fiber yarns, 25～15 parts of Resin adhesives are formed.
2. the high-temperature pressure-bearing composite insulator composition of corrosion-resistant gas according to claim 1 is characterized in that described glass fiber yarn is the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope is 600tex-2400tex.
3. the preparation method of the described composite insulator of claim 1, undertaken by following step:
1), the selection of glass fiber yarn
Glass fiber yarn uses the non-twist acidproof direct yarn of no boron alkali-free, and its fiber dimensious scope must be coated with special-purpose treating compound by the useful glass fiber yarn of 600tex-2400tex.;
2), the surface treatment of glass fiber yarn
Because of existing micro-space between glass fiber yarn and the resin boundary surface, capillary action makes moisture content infiltrate complex body inside along the interface, and further weaken the cohesiveness of resin and glass fiber yarn, physics, the chemical property of matrix material are descended, for this reason, select KH560 for use, Y-aminopropyl triethoxysilane NH
2-CH
2-CH
2-CH
2-Si-COC
2H
5As the glass fiber yarn coupling agent; Its coupling agent and glass fiber yarn mass ratio are coupling agent: glass fiber yarn=1.5 part～2 parts: 98.5 parts～98 parts, the result of coupling agent and glass fiber yarn surface action generates firm covalent linkage;
3), Resin adhesive chooses
In order to make composite insulator that resistance to elevated temperatures be arranged, when choosing resin, require resin normal high-temperature resin that uses in 250 ℃ of following scopes;
1., resin requires: viscosity is low, the whole glass fiber yarn of porous, hyperergy, cure shrinkage is low;
2., the preparation of Resin adhesive
Prevent the cracking material by quality by 0.2 part～0.7 part of 98 parts～100 parts resin, 0.1 part～0.4 part of hydrophobic material, 1 part～3 parts high-abrasive materials, 0.03 part～0.08 part of defoamer composition, wherein said anti-cracking material is a poly sebacic polyanhydride, described hydrophobic material is a thiorubber, and described high-abrasive material is a nanometer grade silica, and described defoamer is 550;
3., the sizing material for preparing is poured in the vacuum stirring device, stirred 20 minutes, left standstill 1 hour;
4), winding working procedure
1. to twine the terylene layer of cloth on core thick to 2.5mm for first internal layer;
2. the second layer twines and to choose winding angle by structural strength requirements, twine glass fiber yarn extremely than the external diameter of structural requirement less than 2.5mm;
3. the 3rd layer is outer, twines the size that residue requires again with woven dacron;
4., the hoop+spirrillum that is wound up as of woven dacron, glass fiber yarn is twined;
5), coldmoulding
The internal mold that winds glass fiber yarn is put in the outer shaping mould, and outer shaping mould is made with steel, for cooperating mould, two modules are contained on the steelframe up and down, and two-half die cooperates the back to seal with rubber gasket, and fixes with floating holder, the after-applied 0.5Mpa pressure of matched moulds, 70 ℃ of constant temperature.
6), resin injection molding
Sizing material after leaving standstill is poured in the vacuum resin jar, sizing material is sent into and is filled with by pipeline in the whole premolding die cavity in the vacuum resin jar, the premolding die cavity the other end connects a pipeline and leads to resin trap, and another outlet of resin trap is connected with vacuum pump by pipeline;
7), close the last lower valve of preforming tool, preforming tool is put into oil heat, the temperature of oil is divided into three sections successively, and heating is 0.5-1.5 hour in the time of 80 ℃-100 ℃, heating is 1.5-2.5 hour in the time of 130 ℃-160 ℃, and heating is 2.5-3.5 hour in the time of 180 ℃-246 ℃;
8), the demoulding when composite insulator that is cured treats that temperature is reduced to 70 ℃, a kind of like this ability H
2S, CO
2The high-temperature pressure-bearing composite insulator of stress corrosion is finished;
9), performance test:
Test index: in temperature is that 246 ℃, pressure are that 140Mpa measures insulation values 〉=500M Ω and is qualified product.
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| CN102558768A (en) * | 2012-02-08 | 2012-07-11 | 西安永兴科技发展有限公司 | Housing of array induction-type petroleum well logging device and preparation method thereof |
| CN106117943A (en) * | 2016-07-05 | 2016-11-16 | 旌德县源远新材料有限公司 | A kind of glass fiber yarn composite and preparation method thereof |
| GB2515619B (en) * | 2013-04-19 | 2017-05-17 | Knauf Insulation | Method of forming a mineral wool insulation product |
| CN111070469A (en) * | 2013-09-05 | 2020-04-28 | Sabic环球技术有限责任公司 | Method for preparing reinforced articles |
| CN112601444A (en) * | 2020-12-29 | 2021-04-02 | 西安永兴科技发展有限公司 | Novel composite material telescopic joint structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102558768A (en) * | 2012-02-08 | 2012-07-11 | 西安永兴科技发展有限公司 | Housing of array induction-type petroleum well logging device and preparation method thereof |
| GB2515619B (en) * | 2013-04-19 | 2017-05-17 | Knauf Insulation | Method of forming a mineral wool insulation product |
| CN111070469A (en) * | 2013-09-05 | 2020-04-28 | Sabic环球技术有限责任公司 | Method for preparing reinforced articles |
| CN106117943A (en) * | 2016-07-05 | 2016-11-16 | 旌德县源远新材料有限公司 | A kind of glass fiber yarn composite and preparation method thereof |
| CN112601444A (en) * | 2020-12-29 | 2021-04-02 | 西安永兴科技发展有限公司 | Novel composite material telescopic joint structure |
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| Publication number | Publication date |
|---|---|
| CN101775229B (en) | 2013-08-28 |
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