CN1078332C - Nodular cast iron tube with liner of non-calcine ceramic and its manufacture method - Google Patents
Nodular cast iron tube with liner of non-calcine ceramic and its manufacture method Download PDFInfo
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- CN1078332C CN1078332C CN99123753A CN99123753A CN1078332C CN 1078332 C CN1078332 C CN 1078332C CN 99123753 A CN99123753 A CN 99123753A CN 99123753 A CN99123753 A CN 99123753A CN 1078332 C CN1078332 C CN 1078332C
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- cast iron
- iron tube
- liner
- nodular cast
- coating
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Abstract
The present invention relates to a nodular cast iron tube with a baking-free ceramic lining and a manufacture method thereof. A coating layer of the nodular cast iron tube with a baking-free ceramic lining is composed of main components such as E-51 epoxy resin, N220 polyether, silicon dioxide, phenol-formaldehyde modification amine, KH-550, etc., coating materials are sprayed on the inner wall of the nodular cast iron tube under the rotation of the nodular cast iron tube, and the thickness of the coating layer is from 1 to 2 millimeters. The cast iron tube with the lining has the advantages of very outstanding peeling strength, excellent abrasion resistance and corrosion resistance and is superior to the present traditional cast iron tube with the lining.
Description
The present invention relates to a kind of nodular cast iron tube with liner and method for making thereof, particularly a kind of nodular cast iron tube with liner of non-calcine ceramic and method for making thereof.
Traditional cast iron tube liner is a cement, and its shortcoming is that corrosion resistance, tightness and wear resistance are all relatively poor, also easily comes off simultaneously.Though occurring in recent years adopting pitch, polyurethane etc. is the cast iron tube of liner, but because its liner is generally≤500 μ m, its wear resistance, hardness is low, corrosion resistance is also undesirable, be difficult to industrialized production and application, as for adopting the firing ceramics liner, then, also be in laboratory conditions so far because of shortcomings such as its energy consumption height, non-plastic, crackies.
The object of the present invention is to provide a kind of nodular cast iron tube with liner of non-calcine ceramic and method for making thereof, its advantage is a wear resistance height, corrosion-resistant, and coating thickness can reach the 1-2 millimeter, and is incrust, and compactness is good, can high efficiency production etc. be its characteristic on production line.
Embodiment of the present invention are as follows: the epoxy resin of the two components of employing and polyethers are made Bond and are adopted silica to make anti-wear agent, cooperate other auxiliary agent and the method for making of uniqueness to carry out, and concrete prescription and method for making are:
(first) prescription: in weight portion
Two-component adhesive: E-51 epoxy resin: N220 polyethers=1: 1 65-70
Anti-wear agent: silica≤425 order 25-40
Curing agent: phenol, formaldehyde modified amine 20-40
Promoter: DMP-30 1
Siloxane coupling agent: KH550 or KH560 or KH570 1-3
Epoxide diluent: 501 or 600 5-15
Plasticizer: CTBN, Thiokol 10-25
(second) method for making: consult general flow chart
1. the silica of two-component adhesive, epoxide diluent, plasticizer, half amount is joined among the hopper 2A and stir, be heated to 50-100 ℃.
With silica, DMP-30, the siloxane coupling agent of curing agent, half amount, join among the hopper 2B, stir, be heated to 50-100 ℃.
3. start pump 3A, pump 3B, with hopper 2A, the material of 2B is respectively imported in the spray dish 6.
4. the cast iron tube 8 that will be heated to 50-100 ℃ is in advance delivered on the spray station.
5. start dolly 1 and made the end insertion of the spray dish 6 of high speed rotating from cast iron tube 8 by motor 5, material is sprayed on the inwall of cast iron tube 8 in the hopper 2A, 2B, and this moment, cast iron tube 8 rotated in the original place.
6. coating thickness is at the 1-2 millimeter, finish spraying after, cast iron tube stopped operating in 3-25 minute, coating is solidified and is formed unburned liner.
Advantage of the present invention:
1. because the silica of employing high hardness is made anti-wear agent, so coating is very wear-resisting.
2. owing to adopting two-component adhesive, strong with the ductile iron pipe inner wall cohesive force, difficult drop-off.
3. coating thickness can reach the 1-2 millimeter, and this is that other material can't match in excellence or beauty.
4. Du Te spraying method, coating is smooth, and compactness is good.
5. excellent corrosion resistance.
Below preference in conjunction with general flow chart the present invention is described in detail, but do not mean that and limit the scope of the invention.
Example 1, can control on its dolly that moves 1 at one, hopper 2A, pump 3A and hopper 2B, pump 3B are installed, with the commercially available trade mark is that each 33 kilograms in E-51 epoxy resin and N220 aldehyde ether, commercially available epoxide diluent 600 are 4 kilograms of 10 kilograms, granularity≤425 purpose silica 1s, the CTBN15 kilogram joins among the hopper 2A, starts to mix.Adding 4 kilograms of silica 1s, 25 kilograms of P-F modified amine, DMP-30 and be 1 kilogram, KH-550 in hopper 2B is 2 kilograms, also starts to mix. Hopper 2A and 2A heating made temperature is 75 ± 5 ℃ in the groove.
The intrinsic delivery pipe 4A of (not shown), delivery pipe 4B, motor 5, spray dish 6 and baffle plate 7 on the support of dolly 1.This motor 5 is that (rotating speed is ten thousand rev/mins of 2-4) that drive spray dish 6 and baffle plate 7 rotations is fixed with and will be sprayed energy original place rotation (rotating speed is 30-40 rev/min) ductile iron pipe 8 of inwall in another support (not shown).
Spray dish 6 during beginning on the dolly 1 is the left sides that are positioned at ductile iron pipe 8 inner chambers, during spraying, when starting dolly 1, pump 3A, behind pump 3B and the motor 5, material in hopper 2A and the hopper 2B respectively from delivery pipe 4A and delivery pipe 4B by ejection in the spray dish 6, the material of ejection is blocked by baffle plate 7, turn back in the spray dish 6, because spray dish 6 is high speed rotating, so material is from the edge ejection of spray dish 6, be sprayed on equably on moving ductile iron pipe 8 inwalls of slow-speed, dolly 1 moves at leisure from left to right like this, and spray dish 6 also just moves from left to right at ductile iron pipe 8 inner chambers, till whole inwall of ductile iron pipe 8 has been coated with.
Ductile iron pipe 8 is to be heated to 80 ± 5 ℃ earlier in another heating equipment (not shown) before entering spraying.
Inwall is sprayed with the coating of material, its thick 1-2 millimeter that is generally, and coated board is even.Naturally cooling was solidified and is formed in 20 minutes.
Ductile iron pipe 8 after the spraying is surveyed it by U.S.'s ASTM method and is peeled off intensity, and wear resistance and rotproofness see Table 1.
Example 2, except that the change of the proportioning of each material, promptly E-51 epoxy resin and N220 polyethers respectively are that 37 minutes jin, silica are that 36 kilograms, P-F modified amine are outside 35 kilograms, and all the other conditions are identical with example 1, spray to such an extent that coating is also tested, and the result also lists in table 1.Table 1 nodular cast iron tube with liner of non-calcine ceramic testing property table
| Test item | Standard method | Example 1 | Example 2 |
| Resistance to wear | ASTM D-4060 | 0.37 gram (coating loss) | (0.36 coating loss) |
| Peeling strength | ASTM D-4541 | 1200Psi | 1210Psi |
| Corrosion resistance (25 ℃ in sulfuric acid) is (50%H (25%NaOH) 2O 2) | ASTM D-1308 | Uninfluenced uninfluenced | Uninfluenced uninfluenced |
Accompanying drawing 1 is a general flow chart of the present invention, and wherein 1 is dolly, and 2A, 2B are hoppers, and 3A and 3B are pumps, and 4A and 4B are delivery pipes, the 5th, and motor, the 6th, spray dish, the 7th, baffle plate, the 8th, ductile iron pipe.
Claims (2)
1. nodular cast iron tube with liner of non-calcine ceramic is characterized in that: the proportioning of its coating is as follows by weight:
Tackiness agent: E-51 epoxy resin: the N220 polyethers is 1: 1 65-75
Anti-wear agent: silica≤425 order 25-40
Curing agent: P-F modified amine 20-40
Promoter: DMP-30 1
Alkylene oxide coupling agent: KH-550 or KH560 or KH570 2
Plasticizer: CTBN 10-25
Epoxide diluent 600 or 501 5-15
Coating thickness: 1-2 millimeter.
2. method for making according to the nodular cast iron tube with liner of non-calcine ceramic of claim 1 prescription is characterized in that:
I. the silica of E-51 epoxy resin and N220 polyethers, epoxide diluent 600, half amount and toughening agent C TBN are added among the feed chute 2A and stir, be heated to 50-100 ℃.
II. the silica of half amount, P-F modified amine, DMP-30, KH-550 add among the feed chute 2B, stir, and are heated to 50-100 ℃.
III. start pump 3A and pump 3B with hopper 2A, the material of 2B is respectively imported in the spray dish 7.
IV. the cast iron tube 8 that will be warmed to 50-100 ℃ is in advance delivered on the spray station.
V. starting dolly 1 slowly inserts the spray dish 6 of self high speed rotating from the end in 8 mouthfuls of the cast iron tubes, material in hopper 2A and the 2B is sprayed on cast iron tube 8 inwalls, the also slowly original place rotation of cast iron tube 8 this moment itself, coating thickness is at the 1-2 millimeter, after finishing spraying, after 3-25 minute, cast iron tube 8 stops operating, and coating is solidified and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99123753A CN1078332C (en) | 1999-11-19 | 1999-11-19 | Nodular cast iron tube with liner of non-calcine ceramic and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99123753A CN1078332C (en) | 1999-11-19 | 1999-11-19 | Nodular cast iron tube with liner of non-calcine ceramic and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1250856A CN1250856A (en) | 2000-04-19 |
| CN1078332C true CN1078332C (en) | 2002-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99123753A Expired - Fee Related CN1078332C (en) | 1999-11-19 | 1999-11-19 | Nodular cast iron tube with liner of non-calcine ceramic and its manufacture method |
Country Status (1)
| Country | Link |
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| CN (1) | CN1078332C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101469746A (en) * | 2007-12-28 | 2009-07-01 | 中国第一汽车集团公司 | Clutch booster pump cylinder inner wall coating |
| CN102297317B (en) | 2011-08-05 | 2013-03-06 | 新兴铸管股份有限公司 | Composite anti-corrosive inner lining with water-based epoxy paint covering layer and application thereof |
| CN103148289B (en) * | 2013-03-08 | 2016-06-29 | 湖北中澳复合制品有限公司 | The preparation method of dredging large-diameter wearproof composite material tube |
| CN104728557A (en) * | 2015-02-15 | 2015-06-24 | 本钢板材股份有限公司 | Production technology for nodular cast iron pipe lining epoxy ceramic |
| CN105802294B (en) * | 2016-06-07 | 2018-05-01 | 黄石新兴管业有限公司 | A kind of special organic varnish of ductile iron pipe shipping mark spray printing and preparation method thereof |
| CN107442386B (en) * | 2017-08-30 | 2020-09-22 | 新兴铸管股份有限公司 | Internal coating process for nodular cast iron pipe |
| CN109290157A (en) * | 2018-09-13 | 2019-02-01 | 山东国铭球墨铸管科技有限公司 | A kind of production technology of ductile iron pipe liner epoxy resin |
| CN111810769B (en) * | 2020-06-29 | 2022-02-01 | 新兴铸管股份有限公司 | Method for manufacturing ceramic coating of cast tube |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405988A1 (en) * | 1984-02-20 | 1985-08-22 | Georg 8000 München Seiler | Tension and shear securing device, which seals and is at the same time electrically isolating, on pipe connections |
| DE3638807A1 (en) * | 1986-11-17 | 1988-05-19 | Westfalia Email | Cast iron exhaust manifold for cylinder internal combustion engines |
| CN2280190Y (en) * | 1997-01-07 | 1998-04-29 | 孙旭日 | Composition pipeline contg. steel and ceramics |
-
1999
- 1999-11-19 CN CN99123753A patent/CN1078332C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405988A1 (en) * | 1984-02-20 | 1985-08-22 | Georg 8000 München Seiler | Tension and shear securing device, which seals and is at the same time electrically isolating, on pipe connections |
| DE3638807A1 (en) * | 1986-11-17 | 1988-05-19 | Westfalia Email | Cast iron exhaust manifold for cylinder internal combustion engines |
| CN2280190Y (en) * | 1997-01-07 | 1998-04-29 | 孙旭日 | Composition pipeline contg. steel and ceramics |
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| Publication number | Publication date |
|---|---|
| CN1250856A (en) | 2000-04-19 |
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