JPS5825195B2 - Corrosion prevention method for transport pipe attachments - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing corrosion of a transport pipe attachment part by a simple construction method.

To explain the drawing, a transport pipe 2 is placed on a frame 1 made of L-shaped steel, etc.
and fixed the transport pipe 2 on the pedestal 1 with the U-bolt 3, and the surfaces of the transport pipe 2, the U-bolt 3, and the pedestal 1 contain more petrolatum and less inert silica for corrosion protection. The U that adhered to the base 1 while applying the primer 4
The erected surface base 5 of the bolt 3 and the contact surface portion 6 of the U port 30 that contacts the transport pipe 2 are filled with a filling anticorrosion 7 containing more inert silica than the anticorrosion primer 4 to strengthen clay properties. A nonwoven fabric tape is pasted to form the lower filling layers 8, 8 and the upper filling layer 9, and then both exposed surfaces 10 of the U-bolt 3 including the lower filling layers 8, 8 are formed of a strong synthetic fiber such as nylon. A tape cloth 21 is formed by sewing several sewing threads 20 made of strong synthetic fibers such as nylon in the longitudinal direction of 19, and the tape cloth 21 is made of petrolatum as a main component, and inert silica for viscosity adjustment is added to the petrolatum. A clay-like adhesive 22 formed by mixing and stirring a small amount of tannin and a rust inhibitor is permeated to form a permeable layer 23, and an adhesive layer is formed on the entire surface of the permeable layer 23. The first anticorrosion tape 11.11, which is formed by cutting the tape formed by providing the tape 24, is wrapped and covered, and the entire surface is smoothed to form both coating layers 12.12, and then transported from the upper filling layer 9. Two-pronged notches 13° 13 are provided at both ends on the lower surface of the tube 2, which is covered with a second anti-corrosion tape 14 formed by cutting a tape made of the same material as the first anti-corrosion tape 11, and further on the upper filling layer 9. When covered, the protruding covering part 1
5 and wrapping portion 16 for wrapping and covering the transport pipe 2.
16 is a pair of third anticorrosion tapes 17.1 formed by cutting a tape made of the same material as the first anticorrosion tape 11.
A fourth anti-corrosion tape 18° is formed by cutting a tape made of the same material as the first anti-corrosion tape 11 from the end portions of the third anti-corrosion tapes 17, 17 which are coated with No. 7 and further wrapped around the transport pipe 2. This relates to a method for preventing corrosion of a transport pipe attachment part, characterized in that the entire surface is smoothed with 1B.

Before applying the anticorrosion primer 4, the surface is polished with a wire brush and moisture is wiped off.

In addition, the first, second, third, and fourth anticorrosion tapes have different widths depending on the place of use, and are cut as appropriate.According to experiments, tape cloth 21 accounts for about 8%, and petrolatum accounts for about 8%. Approximately 60% inert silica, approximately 30% inert silica, and a small volume ratio of tannin and rust inhibitor are suitable for use.

This invention has the above structure, and the first anticorrosion tape 11, the second anticorrosion tape 14, the third anticorrosion tape 17, and the fourth anticorrosion tape 18 are nonwoven fabrics made of strong synthetic fibers such as nylon. A tape cloth 21 is formed by sewing several sewing threads 20 made of strong synthetic fibers such as nylon in the longitudinal direction of the tape 19, and the tape cloth 21 is made of petrolatum as a main component, and an inert material for adjusting viscosity is added to the petrolatum. A clay-like adhesive 22 formed by mixing silica and a small amount of tannin and a rust inhibitor is infiltrated to form a permeable layer 23, and the entire surface of the permeable layer 23 is coated with adhesive. The adhesive layer 24 formed by providing the layer 24 has petrolatum as its main component, so it does not evaporate or harden semi-permanently and always maintains viscosity, thereby forming a semi-permanent anti-corrosion layer, thereby preventing the harmful effects of surface corrosion. , and because a rust inhibitor is mixed in, red rust is changed to black rust and the progress of rust is suppressed.

In addition, by incorporating inert silica, the adhesive has a clay-like viscosity that does not change, and it always maintains a viscous adhesion to the surface and will not peel off from the surface due to vibrations, shocks, etc. It does not allow moisture or air to enter into the gaps, and it maintains its viscosity semi-permanently and can adhere tightly.

In addition, by mixing a small amount of tannin, the adhesive 22 forms a hard, dense film of iron tannate on the metal surface, and this film prevents the progress of rust, and in combination with the anticorrosive effect of petrolatum, has the effect of preventing the progress of rust. In addition, the adhesive layer 24ν has acid resistance, alkali resistance, salt resistance, and excellent chemical resistance. Fix the transport pipe 2 on the frame 1 with the U bolt 3, and also connect the transport pipe 2 and the U bolt 3.
, the surface of the pedestal 10 is coated with an anti-corrosion primer 4 in the form of a paste with a large amount of petrolatum and a reduced amount of inert silica used as a curing agent to make it easier to apply and has a thinner viscosity.
The U-port 30 contacting surface base 5 and the transport pipe 2 which is in contact with the U-bolt 3 fixed to the U-bolt 3 is filled with an anti-corrosion agent containing more inert silica than the anti-corrosion primer 4 to make it clay-like. The ingredients 7 are filled and pasted to form the lower filling layers 8, 8 and the upper filling layer 9, and then both exposed surfaces 10 of the U-bolt 3 including the lower filling layers 8, 8 are covered with a first anti-corrosion tape 11°11. The entire surface is smoothed from the state shown in FIG. 5 to 1 as shown in FIG. 6 to form both coating layers 12 and 12, and then the upper filling layer 9
A second pipe with two-pronged notches 13 at both ends on the lower surface of the transport pipe 2.
A pair of third anti-corrosion tapes are coated with anti-corrosion tape 14 and further provided with a protruding covering portion 15 when covering the upper filling layer 9 and a wrapping portion 16.16 for wrapping and covering the transport pipe 2. 17°17 and further wrapped around the transport pipe 2.
The ends of the anti-corrosion tapes 17, 17 are attached to the fourth anti-corrosion tape 18.
The installation is ensured by smoothing the entire surface as shown in Fig. 8 from the state shown in Fig. 7 by tightening it at 18 degrees. The anti-corrosion coating of the U-bolts 3 that fix the parts is ensured and the anti-corrosion effect is enhanced.

In addition, it provides long-term corrosion protection and is extremely economical. Furthermore, it is a simple construction method and has good workability, resulting in a reduction in labor costs.

[Brief explanation of the drawings] Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, and Fig. 8 are explanatory diagrams showing the process, and Fig. 9 is A partial front view of the anti-corrosion tape, and FIG. 10 is a sectional view of the anti-corrosion tape. 1... Frame, 2... Transport pipe, 3...
...U bolt, 4...Anti-corrosion primer, 5...
... Standing surface base, 6 ... Contact surface portion, 7
......Filled anticorrosive layer, 8...Lower filling layer,
9... Upper filling layer, 10... Rain exposed surface portion, 11... First anticorrosion tape, 12...
...Both coating layers, 13...Both ends bifurcated notches, 14
...Second anti-corrosion tape, 15... Protruding covering portion, 16... Winding portion, 17... Third anti-corrosion tape, 18... ...No. 4 anti-corrosion tape,
19...Nonwoven fabric tape, 20...Sewing thread, 21...Tape cloth, 22...Adhesive, 23...Penetration layer, 24 ...adhesive layer.

Claims (1)

[Claims] 1 ``Place the transport pipe 2 on the pedestal 1 of Uko etc. and
Fix the transport pipe 2 on the frame 1 with bolts 3, and
, add more petrolatum to the surface of U-bolt 3 and frame 1,
A paste-like anti-corrosion primer 4 containing less inert silica is applied, and the U-port 30 abutting surface 6 contacts the standing surface base 5 of the U-bolt 3 fixed to the frame 1 and the transport pipe 2.
A filling anticorrosive material 7 containing more inert silica and stronger clay properties than the anticorrosion primer 4 is filled and pasted to form the lower filling layers 8, 8 and the upper filling layer 9, and then the lower filling layer 8,
Several threads 20 made of strong synthetic fibers such as nylon are sewn onto both exposed surfaces 10 of the U-bolt 3 including threads 8 in the longitudinal direction of a non-woven fabric tape 19 made of strong synthetic fibers such as nylon. A clay-like adhesive is formed by forming the tape cloth 21 and containing petrolatum as a main component, mixing inert silica for viscosity adjustment with the petrolatum, and further mixing and stirring a small amount of tannin and a rust inhibitor. A permeable layer 23 is formed by permeating the agent 22, and the adhesive layer 24 is provided on the entire surface of the permeable layer 23, and then a first anticorrosive tape 11.11 formed by cutting the formed tape is wrapped and coated. The entire surface is smoothed to form both coating layers 12, 12, and then two-pronged notches 13, 13 are provided at both ends on the lower surface of the transport pipe 2 from the upper filling layer 9. The material is the same as that of the first anticorrosive tape 11. When the upper filling layer 9 is further covered with a second anti-corrosion tape 14 formed by cutting the tape, a protruding covering part 15 is provided, and wrapping parts 16, 16 for wrapping and covering the transport pipe 2 are provided. The third anti-corrosion tape 17 is covered with a pair of third anti-corrosion tapes 17 17 formed by cutting a tape made of the same material as the first anti-corrosion tape 11 and further wrapped around the transport pipe 2. 17 is wrapped with a fourth anti-corrosion tape 18.18 formed by cutting a tape made of the same material as the first anti-corrosion tape 11, and the entire surface is smoothed. Corrosion prevention method.