CN1085265A - A kind of corrugated tube that is used for expansion joint and metallic hose - Google Patents
A kind of corrugated tube that is used for expansion joint and metallic hose Download PDFInfo
- Publication number
- CN1085265A CN1085265A CN 92109940 CN92109940A CN1085265A CN 1085265 A CN1085265 A CN 1085265A CN 92109940 CN92109940 CN 92109940 CN 92109940 A CN92109940 A CN 92109940A CN 1085265 A CN1085265 A CN 1085265A
- Authority
- CN
- China
- Prior art keywords
- corrugated tube
- mol
- expansion joint
- deck
- metallic hose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011574 phosphorus Substances 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 229910001096 P alloy Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 238000007772 electroless plating Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 150000002815 nickel Chemical class 0.000 claims description 4
- 239000001632 sodium acetate Substances 0.000 claims description 4
- 229960004249 sodium acetate Drugs 0.000 claims description 4
- 235000017281 sodium acetate Nutrition 0.000 claims description 4
- 239000001488 sodium phosphate Substances 0.000 claims description 4
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 4
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 238000009713 electroplating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 8
- 238000000576 coating method Methods 0.000 abstract description 8
- 238000007747 plating Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 230000003245 working effect Effects 0.000 abstract description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910018104 Ni-P Inorganic materials 0.000 abstract 2
- 229910018536 Ni—P Inorganic materials 0.000 abstract 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Chemically Coating (AREA)
- Diaphragms And Bellows (AREA)
Abstract
A kind ofly be used for carrying the corrugated tube that contains corrosive medium fluidic expansion joint and metallic hose.Its principal character is the Ni-P alloy layer that has the above thickness of one deck 30 μ m at this corrugated tube inwall, and wherein phosphorus content is 8～10%wt.The technology of plating Ni-P coating be matrix (stainless steel etc.) nickel preplating again chemical plating Mi-P alloy realize.Have the characteristics of good anti-local corrosion and the responsive damage of environmental corrosion by corrugated tube provided by the present invention, work-ing life is near original design standard.
Description
The present invention relates to a kind of corrugated tube, expansion joint of using when particularly fluid transmission pipe connects and the corrugated tube in the metallic hose.
The rigid conduit of transmitting fluid, when connecting in order to reach the compensation of angle, position, displacement and to satisfy requirement to damping, sealing etc., often adopt the expansion joint and the metallic hose of various bores, their integral part corrugated tube adopts the stainless steel plate roll extrusion of different thickness usually, [1] [2] that are welded, (Cl when containing certain density corrosive medium in the fluid of transmission
-, H
2S etc.), corrugated tube adds the unrelieved stress in man-hour and the caused stress of variation of fluid medium variation of temperature and flow velocity, and corrugated tube is under the environment of the responsive damage of mechanics-chemical corrosion, does not reach original work-ing life.
The object of the present invention is to provide a kind of corrosion-resistant and wearing and tearing corrugated tube and manufacturing process thereof.
Principal character of the present invention is at described corrugated tube inwall one deck Nl-P alloy layer to be arranged, and the thickness of coating is greater than 30 μ m.Wherein phosphorus content is at 8～10%wt, when P content is lower than 8%wt in the alloy layer, coating is also stretched better performances, but corrosion-proof wear is relatively poor, and when phosphorus content was higher than 10%wt, coating was also stretched poor performance, but the corrosion-proof wear performance is higher, for obtaining associativity coating preferably, electroplate the nickel of one deck 3～5 μ m to common corrugated tube inwall in advance, again electroless plating Nl-P.
The processing parameter of pre-plating nickel is:
Hydrochloric acid (37%) 6～8 mol
Nickelous chloride 0.80～0.90 mol
Mixed rare earth additive 0.01～0.02 mol
20 ℃～30 ℃ of temperature
PH ＜1
Current density 4～6A/dm
2
The processing parameter of electroless plating Nl-P alloy is:
Single nickel salt 0.07～0.12 mol
Inferior sodium phosphate 0.15～0.23 mol
Sodium-acetate 0.10～0.20 mol
Rate accelerating material(RAM) F 10～32 grams per liters
(butyleneglycol, Padil, lactic mixt)
80～90 ℃ of temperature
PH 4.5～5
Corrugated tube provided by the present invention when being used for transmitting the pipeline of corrosive medium, can reach original design work-ing life, is described in further detail the present invention below by embodiment.
Embodiment 1
(1) (φ 300 * 250mm) inwall oilings are cleaned, and outer wall shields with anchor clamps with corrugated stainless steel tubing;
(2) activation treatment is placed on following giving in the plating bath in 20% hydrochloric acid
Hydrochloric acid (37%) 8 mol
Nickelous chloride 0.9 mol
Cerium II Chloride 0.02 grams per liter
Working parameter
25 ℃ of temperature
PH ＜1
4 minutes time
Current density 4A/dm
2
Also 3 hours its processing parameters of electroless plating are as follows immediately to go out the groove after washing:
Single nickel salt 0.12 mol
Inferior sodium phosphate 0.23 mol
Sodium-acetate 0.20 mol
Rate accelerating material(RAM) F 32 grams per liters
90 ℃ of temperature
PH 5
The Nl-P coating that is obtained by above-mentioned technology is 32 μ m, phosphorus content 10%wt.
Embodiment 2
Body is φ 60 * 700mm
(1) the same.
(2) removed following processing parameter chemical plating outside the same 3 hours
Single nickel salt 0.07 mol
Inferior sodium phosphate 0.15 mol
Sodium-acetate 0.10 mol
Rate accelerating material(RAM) 10 grams per liters
PH 4.5
The Nl-P coating that is obtained is 30 μ m, phosphorus content 8%wt.
Table 1 is embodiment 1,2 and the comparison that does not have the corrugated tube corrosive nature of coating.
Table 1 contains 50PPm Cl for 250～300 ℃
-High-temperature water.
Stainless steel expansion joint 12
5 months 13 months 18 months life-span
Reference
(1) U.S. expansioning section manufacturer association standard (EJMA)
(2) U.S.'s " design of FORMED flexible pipe " program.
Claims (2)
1, a kind of corrugated tube that is used for fluid transmission pipe expansion joint and metallic hose is welded by the stainless steel plate roll extrusion, it is characterized in that described corrugated tube inwall has one deck, the Nl-P alloy layer, and its thickness is greater than 30 μ m, and phosphorus content is at 8～10%wt.
2, a kind of manufacture method that obtains the described corrugated tube of claim 1 that is specifically designed to is characterized in that electroplating at first in advance the nickel of one deck 3～5 μ m, electroless plating Nl-P again, and its processing parameter is as follows:
Hydrochloric acid (37%) 6～8 mol
Nickelous chloride 0.80～0.90 mol
Mixed rare earth additive 0.01～0.02 mol
20 ℃～30 ℃ of temperature
PH ＜1
Current density 4～6A/dm
2
The processing parameter of electroless plating Nl-P alloy is:
Single nickel salt 0.07～0.12 mol
Inferior sodium phosphate 0.15～0.23 mol
Sodium-acetate 0.10～0.20 mol
Rate accelerating material(RAM) F 10～32 grams per liters
80～90 ℃ of temperature
PH 4.5～5。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92109940A CN1034882C (en) | 1992-09-29 | 1992-09-29 | Bellows used in expansion joint and flexible metal tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92109940A CN1034882C (en) | 1992-09-29 | 1992-09-29 | Bellows used in expansion joint and flexible metal tubing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1085265A true CN1085265A (en) | 1994-04-13 |
| CN1034882C CN1034882C (en) | 1997-05-14 |
Family
ID=4944491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92109940A Expired - Fee Related CN1034882C (en) | 1992-09-29 | 1992-09-29 | Bellows used in expansion joint and flexible metal tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034882C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620097A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Corrosion-resistant fiber expansion joint |
| CN103695876A (en) * | 2013-12-13 | 2014-04-02 | 中山联合光电科技有限公司 | Process for chemically plating high-performance non-porous nickel-phosphorus alloy |
| US9657426B2 (en) | 2012-09-24 | 2017-05-23 | Lg Electronics Inc. | Washing machine and control method for the same |
| CN112359357A (en) * | 2020-10-28 | 2021-02-12 | 瑞声科技（南京）有限公司 | Chemical nickel plating process for steel sheet, phosphorus-nickel plated steel sheet and uniform temperature plate |
| CN115199828A (en) * | 2022-06-15 | 2022-10-18 | 青岛亿联建设集团股份有限公司 | Corrosion-resistant metal hose for underground pipeline connection and construction method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038841A (en) * | 1988-06-18 | 1990-01-17 | 黑龙江省机械工业研究所 | Sub-zero treatment and chemical plating nickel-phosphorus-rare-earth process |
| CN1008208B (en) * | 1988-08-05 | 1990-05-30 | 罗建云 | Compound steel pipe with fully covered plating |
| CN1024569C (en) * | 1989-06-15 | 1994-05-18 | 机械电子工业部武汉材料保护研究所 | Solution and its process for chemical plating of corrosion resisting amorphous phosphorus-nickel alloy |
-
1992
- 1992-09-29 CN CN92109940A patent/CN1034882C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620097A (en) * | 2012-03-31 | 2012-08-01 | 南通三创机械制造有限公司 | Corrosion-resistant fiber expansion joint |
| US9657426B2 (en) | 2012-09-24 | 2017-05-23 | Lg Electronics Inc. | Washing machine and control method for the same |
| CN103695876A (en) * | 2013-12-13 | 2014-04-02 | 中山联合光电科技有限公司 | Process for chemically plating high-performance non-porous nickel-phosphorus alloy |
| CN112359357A (en) * | 2020-10-28 | 2021-02-12 | 瑞声科技（南京）有限公司 | Chemical nickel plating process for steel sheet, phosphorus-nickel plated steel sheet and uniform temperature plate |
| CN112359357B (en) * | 2020-10-28 | 2022-03-01 | 瑞声科技（南京）有限公司 | Chemical nickel plating process for steel sheet, phosphorus-nickel plated steel sheet and uniform temperature plate |
| CN115199828A (en) * | 2022-06-15 | 2022-10-18 | 青岛亿联建设集团股份有限公司 | Corrosion-resistant metal hose for underground pipeline connection and construction method thereof |
| CN115199828B (en) * | 2022-06-15 | 2023-08-08 | 青岛亿联建设集团股份有限公司 | Corrosion-resistant metal hose for underground pipeline connection and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1034882C (en) | 1997-05-14 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |