CN109112282A - A kind of processing technology of acidproof steel pipe - Google Patents
A kind of processing technology of acidproof steel pipe Download PDFInfo
- Publication number
- CN109112282A CN109112282A CN201810916654.7A CN201810916654A CN109112282A CN 109112282 A CN109112282 A CN 109112282A CN 201810916654 A CN201810916654 A CN 201810916654A CN 109112282 A CN109112282 A CN 109112282A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- processing technology
- pipe
- acidproof
- heated
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/04—Tubes; Rings; Hollow bodies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
The invention discloses a kind of processing technologys of acidproof steel pipe, the specific steps are as follows: prepares blank, and slight crack and degree of eccentricity progress reconditioning to the surfaces externally and internally of pipe；Steel pipe is heated, then cooled to room temperature；Under conditions of 22-25 DEG C, cold rolling is carried out to pipe；Tempering is carried out to pipe, that is, after being heated to 600-700 DEG C, keeps the temperature 2-4 hours, then cooled to room temperature；Steel pipe is added in nitric acid and is impregnated, antirust treatment is carried out；Galvanizing flux is prepared, it is zinc-plated to the surfaces externally and internally progress of steel pipe by the way of plating, it air-dries.The present invention has many advantages, such as that rust-proof effect is relatively good, service life greatly prolongs.
Description
Technical field
The present invention relates to acidproof steel pipe manufacture fields, more particularly, to a kind of processing technology of acidproof steel pipe.
Background technique
Steel pipe is applied not only to trandfer fluid and powdery solid, exchange thermal energy, manufacture machine components and container, it is still a kind of
Economic steel.Building structure rack, pillar and machinery mount are manufactured with steel pipe, weight can be mitigated, saves metal 20~40%,
And it can realize batch production mechanized construction.Steel can be saved, simplify construction by manufacturing highway bridge not only with steel pipe, and can be big
The big area for reducing stopping off, investment reduction and maintenance cost.
Steel pipe is applied not only to trandfer fluid and powdery solid, exchange thermal energy, manufacture machine components and container, it is still a kind of
Economic steel.Building structure rack, pillar and machinery mount are manufactured with steel pipe, weight can be mitigated, saves metal 20~40%,
And it can realize batch production mechanized construction.Steel can be saved, simplify construction by manufacturing highway bridge not only with steel pipe, and can be big
The big area for reducing stopping off, investment reduction and maintenance cost.
Currently, the defect of the generally existing acid resistance difference of steel pipe in the market, therefore in the use process of steel pipe, especially
Under rugged environment, steel pipe is easier to be damaged, and the acid resistance for how improving steel pipe has become currently important grind
Study carefully one of direction.
Summary of the invention
The present invention is to provide a kind of processing work of acidproof steel pipe in order to avoid shortcoming present in above-mentioned prior art
Skill, to solve the problems, such as that existing steel pipe acid resistance is poor, be easily damaged.
The present invention uses following technical scheme in order to solve the technical problem: the invention discloses a kind of processing works of acidproof steel pipe
Skill, the specific steps are as follows:
(1), prepare blank, and slight crack and degree of eccentricity progress reconditioning to the surfaces externally and internally of pipe；
(2), steel pipe is heated, then cooled to room temperature；
(3), under conditions of 22-25 DEG C, cold rolling is carried out to pipe；
(4), tempering is carried out to pipe, that is, after being heated to 600-700 DEG C, keeps the temperature 2-4 hours, then naturally cool to
Room temperature；
(5), steel pipe is added in nitric acid and is impregnated, carry out antirust treatment；
(6), galvanizing flux is prepared, it is zinc-plated to the surfaces externally and internally progress of steel pipe by the way of plating, it air-dries.
Preferably, steel pipe is heated to 400-600 DEG C in the step (2).
Preferably, soaking time is 1-3 hour in the step (5).
Preferably, in the step (6), according to mass percent, the galvanizing flux prepared by following components and
At: zinc chloride 4%-6%, hydrochloric acid 2%-7%, zinc oxide 5%-7%, thiocarbamide 3%-6%, stannous chloride 2%-5%, surplus are
Water.
Preferably, the water in the galvanizing flux is deionized water.
Preferably, in the step (6), the configuration method of the galvanizing flux are as follows: by zinc chloride, hydrochloric acid, oxidation
Zinc, thiocarbamide, stannous chloride addition are gone in water, are uniformly mixed.
Compared with the prior art, the invention has the advantages that:
The processing technology of acidproof steel pipe of the present invention is zinc-plated by reconditioning, heat treatment, antirust treatment and galvanizing flux,
Both it has gone out the rust of steel pipe surfaces externally and internally, also a protective layer has been formed in steel pipe surfaces externally and internally, to effectively play antirust
Purpose, water pipe precaution effect is good, and service life greatly prolongs.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the processing technology of acidproof steel pipe of the present invention.
Specific embodiment
Embodiment 1
The invention discloses a kind of processing technologys of acidproof steel pipe, the specific steps are as follows:
(1), prepare blank, and slight crack and degree of eccentricity progress reconditioning to the surfaces externally and internally of pipe；
(2), steel pipe is heated, then cooled to room temperature；
(3), under conditions of 23 DEG C, cold rolling is carried out to pipe；
(4), tempering is carried out to pipe, that is, after being heated to 650 DEG C, keeps the temperature 3 hours, then cooled to room temperature；
(5), steel pipe is added in nitric acid and is impregnated, carry out antirust treatment；
(6), galvanizing flux is prepared, it is zinc-plated to the surfaces externally and internally progress of steel pipe by the way of plating, it air-dries.
In the step (2), steel pipe is heated to 500 DEG C.
In the step (5), soaking time is 2 hours.
In the step (6), according to mass percent, the galvanizing flux is prepared from the following components: zinc chloride
5%, hydrochloric acid 4%, zinc oxide 6%, thiocarbamide 5%, stannous chloride 4%, surplus is water.
Water in the galvanizing flux is deionized water.
In the step (6), the configuration method of the galvanizing flux are as follows: by zinc chloride, hydrochloric acid, zinc oxide, thiocarbamide, chlorine
Change stannous addition to go in water, be uniformly mixed.
Embodiment 2
The invention discloses a kind of processing technologys of acidproof steel pipe, the specific steps are as follows:
(1), prepare blank, and slight crack and degree of eccentricity progress reconditioning to the surfaces externally and internally of pipe；
(2), steel pipe is heated, then cooled to room temperature；
(3), under conditions of 25 DEG C, cold rolling is carried out to pipe；
(4), tempering is carried out to pipe, that is, after being heated to 600 DEG C, keeps the temperature 2-4 hours, then naturally cool to room
Temperature；
(5), steel pipe is added in nitric acid and is impregnated, carry out antirust treatment；
(6), galvanizing flux is prepared, it is zinc-plated to the surfaces externally and internally progress of steel pipe by the way of plating, it air-dries.
In the step (2), steel pipe is heated to 400 DEG C.
In the step (5), soaking time is 3 hours.
In the step (6), according to mass percent, the galvanizing flux is prepared from the following components: zinc chloride
6%, hydrochloric acid 2%, zinc oxide 7%, thiocarbamide 3%, stannous chloride 5%, surplus is water.
Water in the galvanizing flux is deionized water.
In the step (6), the configuration method of the galvanizing flux are as follows: by zinc chloride, hydrochloric acid, zinc oxide, thiocarbamide, chlorine
Change stannous addition to go in water, be uniformly mixed.
Embodiment 3
The invention discloses a kind of processing technologys of acidproof steel pipe, the specific steps are as follows:
(1), prepare blank, and slight crack and degree of eccentricity progress reconditioning to the surfaces externally and internally of pipe；
(2), steel pipe is heated, then cooled to room temperature；
(3), under conditions of 22-25 DEG C, cold rolling is carried out to pipe；
(4), tempering is carried out to pipe, that is, after being heated to 600-700 DEG C, keeps the temperature 2-4 hours, then naturally cool to
Room temperature；
(5), steel pipe is added in nitric acid and is impregnated, carry out antirust treatment；
(6), galvanizing flux is prepared, it is zinc-plated to the surfaces externally and internally progress of steel pipe by the way of plating, it air-dries.
Preferably, steel pipe is heated to 400-600 DEG C in the step (2).
Preferably, soaking time is 1-3 hour in the step (5).
Preferably, in the step (6), according to mass percent, the galvanizing flux prepared by following components and
At: zinc chloride 4%, hydrochloric acid 7%, zinc oxide 5%, thiocarbamide 6%, stannous chloride 2%, surplus are water.
Water in the galvanizing flux is deionized water.
In the step (6), the configuration method of the galvanizing flux are as follows: by zinc chloride, hydrochloric acid, zinc oxide, thiocarbamide, chlorine
Change stannous addition to go in water, be uniformly mixed.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (6)
1. a kind of processing technology of acidproof steel pipe, it is characterised in that: specific step is as follows:
(1), prepare blank, and slight crack and degree of eccentricity progress reconditioning to the surfaces externally and internally of pipe；
(2), steel pipe is heated, then cooled to room temperature；
(3), under conditions of 22-25 DEG C, cold rolling is carried out to pipe；
(4), tempering is carried out to pipe, that is, after being heated to 600-700 DEG C, keeps the temperature 2-4 hours, then naturally cool to room
Temperature；
(5), steel pipe is added in nitric acid and is impregnated, carry out antirust treatment；
(6), galvanizing flux is prepared, it is zinc-plated to the surfaces externally and internally progress of steel pipe by the way of plating, it air-dries.
2. a kind of processing technology of acidproof steel pipe according to claim 1, it is characterised in that: in the step (2), steel
Pipe is heated to 400-600 DEG C.
3. a kind of processing technology of acidproof steel pipe according to claim 1, it is characterised in that: in the step (5), leaching
The bubble time is 1-3 hour.
4. a kind of processing technology of acidproof steel pipe according to claim 1, it is characterised in that: in the step (6), press
According to mass percent, the galvanizing flux is prepared from the following components: zinc chloride 4%-6%, hydrochloric acid 2%-7%, zinc oxide
5%-7%, thiocarbamide 3%-6%, stannous chloride 2%-5%, surplus are water.
5. a kind of processing technology of acidproof steel pipe according to claim 1, it is characterised in that: the water in the galvanizing flux
For deionized water.
6. a kind of processing technology of acidproof steel pipe according to claim 1, it is characterised in that: in the step (6), institute
The configuration method for the galvanizing flux stated are as follows: zinc chloride, hydrochloric acid, zinc oxide, thiocarbamide, stannous chloride addition are gone in water, are uniformly mixed
?.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916654.7A CN109112282A (en) | 2018-08-13 | 2018-08-13 | A kind of processing technology of acidproof steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916654.7A CN109112282A (en) | 2018-08-13 | 2018-08-13 | A kind of processing technology of acidproof steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109112282A true CN109112282A (en) | 2019-01-01 |
Family
ID=64853234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810916654.7A Pending CN109112282A (en) | 2018-08-13 | 2018-08-13 | A kind of processing technology of acidproof steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109112282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007838A (en) * | 2020-07-22 | 2020-12-01 | 江阴市三和重工钢制品有限公司 | Surface processing system and treatment process for acid-resistant and corrosion-resistant steel pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527109A (en) * | 2013-10-28 | 2014-01-22 | 天津摩尔工程材料实验室 | Oil casing |
| CN104107845A (en) * | 2013-04-19 | 2014-10-22 | 上海金保莱不锈钢有限公司 | Production technology of stainless steel pipe |
| CN106191937A (en) * | 2016-08-23 | 2016-12-07 | 合肥东方节能科技股份有限公司 | A kind of zinc-plated anti-corrosion treatment process of steel surface |
| CN106623481A (en) * | 2015-10-30 | 2017-05-10 | 刘元宏 | A steel pipe production process |
-
2018
- 2018-08-13 CN CN201810916654.7A patent/CN109112282A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107845A (en) * | 2013-04-19 | 2014-10-22 | 上海金保莱不锈钢有限公司 | Production technology of stainless steel pipe |
| CN103527109A (en) * | 2013-10-28 | 2014-01-22 | 天津摩尔工程材料实验室 | Oil casing |
| CN106623481A (en) * | 2015-10-30 | 2017-05-10 | 刘元宏 | A steel pipe production process |
| CN106191937A (en) * | 2016-08-23 | 2016-12-07 | 合肥东方节能科技股份有限公司 | A kind of zinc-plated anti-corrosion treatment process of steel surface |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007838A (en) * | 2020-07-22 | 2020-12-01 | 江阴市三和重工钢制品有限公司 | Surface processing system and treatment process for acid-resistant and corrosion-resistant steel pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101580922B (en) | Method for producing tin phosphorus bronze band by direct cold cogging | |
| CN109097704B (en) | Method for producing annealing-free vanadium-containing heat-resistant steel hot-rolled wire rod | |
| CN101270404B (en) | Method for producing special fastener | |
| CN110760648A (en) | Weather-resistant bolt production process | |
| CN104988402A (en) | Galvanized nut machining technology | |
| CN101187295B (en) | Super high intensity anti-corrosion pumping rod production method | |
| CN109266881A (en) | A kind of preparation process of 5083 aluminium alloy of high buckling performance | |
| CN101590495A (en) | A kind of preparation method of particle reinforced aluminum-matrix steel-backed composite board | |
| CN107904364A (en) | A kind of high intensity, low-temperature resistance, the preparation method of corrosion-resistant fastener | |
| CN105499300A (en) | Production technology of copper strip for lock | |
| KR20170012318A (en) | Hot-plated product having oxide layer, and manufacturing method and application therefor | |
| CN111826549A (en) | High-toughness titanium alloy and method for preparing bar by using same | |
| CN109112282A (en) | A kind of processing technology of acidproof steel pipe | |
| CN103436830B (en) | A kind of preparation method of High-performance large-size beryllium copper tube | |
| CN1952344A (en) | Method for making super-high-strength anti-corrosion pumping polished rod | |
| CN103667823B (en) | A kind of high intensity aluminum zinc magnesium alloy material and its preparation method and application | |
| CN105543715A (en) | High-intensity and corrosion-resistant high-nitrogen steel fastener and manufacturing process thereof | |
| CN102409271A (en) | Production method of aluminum alloy sheet | |
| CN103215427A (en) | Heat treatment process of gauge block made of bearing steel | |
| CN113275405B (en) | TWIP steel wire direct drawing forming method | |
| CN111074202B (en) | Long-acting stress corrosion fracture resistant segment bolt and manufacturing method thereof | |
| CN1952345A (en) | Super H anti-corrosion pumping polished rod | |
| CN1959059A (en) | Sucker rod in super II level | |
| CN110747475A (en) | Antirust agent for manufacturing street lamp pole and preparation method thereof | |
| CN103981421A (en) | Wear-resistant, heatproof, and anticorrosive pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
|
| RJ01 | Rejection of invention patent application after publication |