阅读说明：本技术 一种玻璃钢防腐管及其制造方法 (A kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing method ) 是由 单佩立 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种玻璃钢防腐管,由内层的镀锌钢管和外层的玻璃钢套模压成型,玻璃钢套由上玻璃钢条和下玻璃钢条构成,玻璃钢套的表面涂刷有一层环氧树脂漆,玻璃钢套的两端设置有防撞硅胶套,防撞硅胶套套接在镀锌钢管的外侧,防撞硅胶套外侧面为弧形面或者斜面,防撞硅胶套靠近玻璃钢套一端高度与玻璃钢套外表面平齐,远离玻璃钢套一端贴紧镀锌钢管的外表面,本发明的玻璃钢防腐管可在工厂内直接加工生产,然后送至现场施工组装,且防腐性能更好,防撞硅胶套在搬运过程中能保护玻璃钢套不被撞坏,较现有技术中的防腐管节约了时间和人工,而且能达到更好的防腐效果,节约成本,提高了现场施工效率。(The invention discloses a kind of Corrosion Protection of Fiber Reinforced Plastics pipes, by the fiber glass reinforced plastic cover compression molding of the coating steel pipe and outer layer of internal layer, fiber glass reinforced plastic cover is made of upper glass fibre reinforced plastics and lower glass fibre reinforced plastics, the external coating of fiber glass reinforced plastic cover has one layer of epoxy resin coating, the both ends of fiber glass reinforced plastic cover are provided with anticollision silica gel sheath, anticollision silica gel sheath is socketed in the outside of coating steel pipe, anticollision silica gel sheath lateral surface is arcwall face or inclined-plane, anticollision silica gel sheath is close to fiber glass reinforced plastic cover one end height and fiber glass reinforced plastic cover flush with outer surface, the outer surface of coating steel pipe is adjacent to far from fiber glass reinforced plastic cover one end, Corrosion Protection of Fiber Reinforced Plastics pipe of the invention can directly process in factory, it is then sent to site operation assembling, and antiseptic property is more preferable, anticollision silica gel sheath can protect fiber glass reinforced plastic cover not to be damaged in the handling process, anti-corrosion pipe more in the prior art has saved time and artificial, and it can reach more Good anti-corrosion effect, save the cost improve site operation efficiency.)

1. a kind of Corrosion Protection of Fiber Reinforced Plastics pipe, it is characterised in that it is molded by the coating steel pipe (1) of internal layer and the fiber glass reinforced plastic cover (2) of outer layer Molding, the fiber glass reinforced plastic cover (2) are made of upper glass fibre reinforced plastics and lower glass fibre reinforced plastics, and the external coating of the fiber glass reinforced plastic cover (2) has The both ends of one layer of epoxy resin coating, the fiber glass reinforced plastic cover (2) are provided with anticollision silica gel sheath (5), anticollision silica gel sheath (5) socket In the outside of the coating steel pipe (1), anticollision silica gel sheath (5) lateral surface is arcwall face or inclined-plane, the anticollision silica gel (5) are covered close to the fiber glass reinforced plastic cover (2) one end height and the fiber glass reinforced plastic cover (2) flush with outer surface, far from the fiber glass reinforced plastic cover (2) one end is adjacent to the outer surface of the coating steel pipe (1).

2. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that be made in the raw material of the fiber glass reinforced plastic cover (2) and wrap Containing epoxy resin, the weight of the epoxy resin at least accounts for the 23% of overall weight.

3. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that the fiber glass reinforced plastic cover (2) is by following parts by weight Raw material is made: 40 parts of epoxy resin, 20 parts of glass fibre, 3 parts of hydrogen peroxide, 6 parts of melamine, 2 parts of potassium hydroxide, titanium dioxide 2 parts of tin.

4. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that the insoluble matter content of the epoxy resin is extremely It is less 85%.

5. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that the surface roughness of the coating steel pipe (1) is extremely It is less 40 μm.

6. Corrosion Protection of Fiber Reinforced Plastics pipe according to claim 1, it is characterised in that the diameter of the coating steel pipe (1) is 15- 150mm, wall thickness 2-20mm, the upper glass fibre reinforced plastics and lower glass fibre reinforced plastics with a thickness of 2-20mm.

7. a kind of manufacturing method of the Corrosion Protection of Fiber Reinforced Plastics pipe as described in claims 1 to 3 is any, it is characterised in that including following step It is rapid:

S1, the outer surface of coating steel pipe is subjected to roughness processing；

S2, the outer surface for cleaning coating steel pipe and then natural air drying；

S3, by the epoxy resin of above-mentioned parts by weight, glass fibre, hydrogen peroxide, melamine, potassium hydroxide, stannic oxide It is uniformly mixed, glass fibre reinforced plastics and lower glass fibre reinforced plastics is respectively prepared；

S4, lower die and upper mold are heated to 160 ± 2 DEG C and kept for 5-10 minutes；

S5, lower glass fibre reinforced plastics are put into the mould storehouse (4) of lower die (3), then coating steel pipe are put on lower glass fibre reinforced plastics, finally Upper glass fibre reinforced plastics are put on coating steel pipe；

S6, upper mold and lower die mold, and clamp lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics；

S7, lower die and upper mold are heated to 160-260 DEG C, and pressurization makes between lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics Pressure is 2.90-5.10MPa, and is kept for 4-10 minutes；

S8, demoulding are got product.

Technical field

The present invention relates to a kind of production of anti-corrosion and mounting technique, especially a kind of Corrosion Protection of Fiber Reinforced Plastics pipe and its manufacturing methods.

Background technique

Original gas pipeline is generally coating steel pipe, when being laid with using just old-fashioned " three oily two cloth " formula anti-corrosion side Formula finds that the anticorrosion surface layer of the fuel gas conduit of such anti-corrosion mode is unable to reach requirement for anticorrosion, erosion resistant coating after many years use All there is breakage, Process anti-corrosion layer intensity at that time, which is not achieved 30 years, to be required, so using for reference electronic field wire insulation later Mode occurs covering the new erosion resistant coating on coating steel pipe using thermal shrinkable sleeve, and cost is relatively low, but it is still relatively thin, is easy broken Damage；There are also one is upper bitumen layer and steel pipe is covered from inside to outside on coating steel pipe, using 3PE anti-corrosion, this mode anti-corrosion is imitated Fruit is good, but high production cost.

Summary of the invention

For overcome the deficiencies in the prior art, the present invention provides that a kind of production cost is low, glass reinforced plastic of favorable anti-corrosion effect is anti- Corruption pipe.

The technical solution adopted by the present invention to solve the technical problems is:

A kind of Corrosion Protection of Fiber Reinforced Plastics pipe, by internal layer coating steel pipe and outer layer fiber glass reinforced plastic cover be pressed and molded, the fiber glass reinforced plastic cover by Upper glass fibre reinforced plastics and lower glass fibre reinforced plastics are constituted, and the external coating of the fiber glass reinforced plastic cover has one layer of epoxy resin coating, the glass reinforced plastic The both ends of set are provided with anticollision silica gel sheath, and the anticollision silica gel sheath is socketed in the outside of the coating steel pipe, the anticollision silica gel Covering lateral surface is arcwall face or inclined-plane, and the anticollision silica gel sheath is close to described fiber glass reinforced plastic cover one end height and the fiber glass reinforced plastic cover Flush with outer surface is adjacent to the outer surface of the coating steel pipe far from described fiber glass reinforced plastic cover one end.

It is made in the raw material of the fiber glass reinforced plastic cover comprising epoxy resin, the weight of the epoxy resin at least accounts for overall weight 23%.

The fiber glass reinforced plastic cover is made of raw material from the following weight: 40 parts of epoxy resin, 20 parts of glass fibre, hydrogen peroxide 3 parts, 6 parts of melamine, 2 parts of potassium hydroxide, 2 parts of stannic oxide.

The insoluble matter content of the epoxy resin is at least 85%.

The surface roughness of the coating steel pipe is at least 40 μm.

The diameter of the coating steel pipe is 15-150mm, wall thickness 2-20mm, the upper glass fibre reinforced plastics and lower glass fibre reinforced plastics With a thickness of 2-20mm.

A kind of manufacturing method of Corrosion Protection of Fiber Reinforced Plastics pipe, comprising the following steps:

S1, the outer surface of coating steel pipe is subjected to roughness processing；

S2, the outer surface for cleaning coating steel pipe and then natural air drying；

S3, by the epoxy resin of above-mentioned parts by weight, glass fibre, hydrogen peroxide, melamine, potassium hydroxide, stannic oxide It is uniformly mixed, glass fibre reinforced plastics and lower glass fibre reinforced plastics is respectively prepared；

S4, lower die and upper mold are heated to 160 ± 2 DEG C and kept for 5-10 minutes；

S5, lower glass fibre reinforced plastics are put into the mould storehouse of lower die, then coating steel pipe is put on lower glass fibre reinforced plastics, finally by upper glass Glass steel bar is put on coating steel pipe；

S6, upper mold and lower die mold, and clamp lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics；

S7, lower die and upper mold are heated to 160-260 DEG C, and pressurization makes between lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics Pressure is 2.90-5.10MPa, and is kept for 4-10 minutes；

S8, demoulding are got product.

The beneficial effects of the present invention are: Corrosion Protection of Fiber Reinforced Plastics pipe of the invention is by the coating steel pipe of internal layer and the glass reinforced plastic of outer layer Set compression molding, can directly process in factory, be then sent to site operation assembling, and the external coating of fiber glass reinforced plastic cover There is one layer of epoxy resin coating, the both ends of fiber glass reinforced plastic cover are provided with anticollision silica gel sheath, and antiseptic property is more preferable, and anticollision silica gel sheath is being carried Fiber glass reinforced plastic cover can be protected not to be damaged in the process, anti-corrosion pipe more in the prior art has saved time and artificial, and can reach Better anti-corrosion effect, save the cost improve site operation efficiency.

Detailed description of the invention

Present invention will be further explained below with reference to the attached drawings and examples.

Fig. 1 is schematic structural cross-sectional view of the invention；

Fig. 2 is the structural schematic diagram of lower die.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.

In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.

Referring to Fig.1, Fig. 2, a kind of Corrosion Protection of Fiber Reinforced Plastics pipe are molded by the coating steel pipe 1 of internal layer and the fiber glass reinforced plastic cover 2 of outer layer Type can directly process in factory, be then sent to site operation assembling, the fiber glass reinforced plastic cover 2 by upper glass fibre reinforced plastics and Lower glass fibre reinforced plastics are constituted, and the diameter of the coating steel pipe 1 is 15-150mm, and wall thickness 2-20mm, the upper glass fibre reinforced plastics are under Glass fibre reinforced plastics with a thickness of 2-20mm, the external coating of the fiber glass reinforced plastic cover 2 has one layer of epoxy resin coating, make it have preferably Antiseptic property, the both ends of the fiber glass reinforced plastic cover 2 are provided with anticollision silica gel sheath 5, and the anticollision silica gel sheath 5 is socketed in the galvanized steel The outside of pipe 1,5 lateral surface of anticollision silica gel sheath are arcwall face or inclined-plane, and the anticollision silica gel sheath 5 is close to the glass reinforced plastic 2 one end height and 2 flush with outer surface of fiber glass reinforced plastic cover are covered, are adjacent to the coating steel pipe 1 far from described 2 one end of fiber glass reinforced plastic cover Outer surface, the anticollision silica gel sheath 5 can protect fiber glass reinforced plastic cover not to be damaged in the handling process, due to the fiber glass reinforced plastic cover 2 End face is plane, necessarily protrudes from 1 outside of coating steel pipe, in the handling process, the end face of the fiber glass reinforced plastic cover 2 is easy It is collided with other articles, the anticollision silica gel sheath 5 can play buffer function in collision, and Corrosion Protection of Fiber Reinforced Plastics pipe of the invention is existing Anti-corrosion pipe in technology has saved time and artificial, and can reach better anti-corrosion effect, and save the cost, the scene of improving is applied Work efficiency rate.

It is made in the raw material of the fiber glass reinforced plastic cover 2 comprising epoxy resin, the weight of the epoxy resin at least accounts for whole weight The 23% of amount, the insoluble matter content of the epoxy resin is at least 85%, and specifically, the fiber glass reinforced plastic cover 2 is by following heavy Amount part raw material be made: 40 parts of epoxy resin, 20 parts of glass fibre, 3 parts of hydrogen peroxide, 6 parts of melamine, 2 parts of potassium hydroxide, 2 parts of stannic oxide, the heat distortion temperature of the fiber glass reinforced plastic cover 2 is at least 110 DEG C, and the content ratio of the epoxy resin is bigger, institute The anti-corrosion effect for stating fiber glass reinforced plastic cover 2 is better, and the insoluble matter content of the epoxy resin is bigger, and resistance to ag(e)ing is better, the glass The heat distortion temperature of glass steel bushing 2 is bigger, and the fiber glass reinforced plastic cover 2 is less susceptible to deformation.

The surface roughness of the coating steel pipe 1 is at least 40 μm, and the roughness of the coating steel pipe 1 is bigger, the glass Glass steel bushing 2, which is got over, stronger to be covered on 1 surface of coating steel pipe, avoid falling off.

A kind of manufacturing method of Corrosion Protection of Fiber Reinforced Plastics pipe, comprising the following steps:

S1, the outer surface of coating steel pipe is subjected to roughness processing, roughness is handled at least 40 μm, the step main purpose To make fiber glass reinforced plastic cover is stronger to cover on coating steel pipe surface, avoid falling off；；

S2, the outer surface for cleaning coating steel pipe and then natural air drying；

S3, by 40 parts of epoxy resin, 20 parts of glass fibre, 3 parts of hydrogen peroxide, 6 parts of melamine, 2 parts of potassium hydroxide, titanium dioxide 2 parts of tin are uniformly mixed, and glass fibre reinforced plastics and lower glass fibre reinforced plastics are respectively prepared, the glass obtained through the synthesis processing of the above component Steel bar is made at low cost, and use scope is wide, and especially hydrogen peroxide makes its bullet before heating as the micro addition of curing agent Property rubber like, easy to process, good toughness, corrosion resistance is strong, then using 160-260 DEG C of temperature, pressure 2.90- 5.10MPa, and the hardness solidified after effect in 4-10 minutes is kept also to correspondingly increase has very strong rigidity and corrosion-resistant Property, meet the requirement for anticorrosion of fuel gas conduit；

S4, lower die and upper mold are heated to 160 ± 2 DEG C and kept for 5-10 minutes；

S5, lower glass fibre reinforced plastics are put into the mould storehouse 4 of lower die 3, then coating steel pipe is put on lower glass fibre reinforced plastics, it finally will be upper Glass fibre reinforced plastics are put on coating steel pipe；

S6, upper mold and lower die mold, and clamp lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics；

S7, lower die and upper mold are heated to 160-260 DEG C, and pressurization makes between lower glass fibre reinforced plastics, coating steel pipe and upper glass fibre reinforced plastics Pressure is 2.90-5.10MPa, and is kept for 4-10 minutes；

S8, demoulding are got product.

In above-mentioned steps, lower die 3 is provided with mould storehouse 4, and the upper mold and lower die 3 are mutually mirror settings, the tool of step S5 Body way is: first lower glass fibre reinforced plastics being put into the mould storehouse 4 of lower die 3, then coating steel pipe 1 is placed on lower glass fibre reinforced plastics, is connect Upper glass fibre reinforced plastics are placed on coating steel pipe 1, finally close upper mold, step is simple, easily operated.

Corrosion Protection of Fiber Reinforced Plastics pipe made of the above production method, which is detected, reaches following national standard: tensile strength meets GB/T1447-2005, bending strength meet GB/T1449-2005, and hardness Barcol meets GB/T3854-2005, and oxygen index (OI) meets GB/T8924-2005, resistant to chemical media corrosivity (sodium hydroxide) meet GB/T3857-2017, resistant to chemical media corrosivity (salt Acid) meet GB/T3857-2017；This Corrosion Protection of Fiber Reinforced Plastics pipe can directly process in factory, be then sent to site operation group Dress, anti-corrosion mode more in the prior art has saved time and artificial, and can reach same technical effect, save the cost, Improve site operation efficiency.

Above embodiment cannot limit the protection scope of the invention, and the personnel of professional skill field are not departing from In the case where the invention general idea, the impartial modification and variation done still fall within the range that the invention is covered Within.