CN101638752A - Corrosion-resisting alloy for immersion piece of hot-dip galvanized pan - Google Patents
Corrosion-resisting alloy for immersion piece of hot-dip galvanized pan Download PDFInfo
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- CN101638752A CN101638752A CN200810048670A CN200810048670A CN101638752A CN 101638752 A CN101638752 A CN 101638752A CN 200810048670 A CN200810048670 A CN 200810048670A CN 200810048670 A CN200810048670 A CN 200810048670A CN 101638752 A CN101638752 A CN 101638752A
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Abstract
The invention relates to metallurgical industry, and provides a corrosion-resisting alloy for an immersion piece of a hot-dip galvanized pan, which comprises the following chemical components in percentage by weight: less than or equal to 0.08 percent of C, less than or equal to 1.50 percent of Si, less than or equal to 1.50 percent of Mn, less than 0.03 percent of P, less than 0.03 percent of S,17.50 to 22.00 percent of Cr, 9.00 to 13.00 percent of Ni, 2.00 to 3.00 percent of Mo, and the balance of Fe and trace impurities. The corrosion-resisting alloy for the immersion piece of the hot-dipgalvanized pan overcomes the disadvantages of susceptibility to corrosion and short service life of the galvanized pan made of the prior common used steel, has the advantages of Ai, Zn and Si alloy solution resistance, strong strength of intermediate temperature, and the like, is mainly used for manufacturing immersion pieces of galvanized pans in thin plate galvanizing production lines or dip Al-Zn-Si production lines such as immersion rollers, stabilizing rollers and supporting arms, as well as spare parts of anti-intermediate temperature corrosion equipment.
Description
(1) technical field:
The present invention relates to metallurgical industry, is a kind of corrosion-resisting alloy for immersion piece of hot-dip galvanized pan.
(2) background technology:
Development along with industry, construction industry, thin plate is zinc-plated in the every profession and trade widespread use, also demand constantly increases year by year, China each province is still at continuous construction fever galvanization production line, in galvanization production line, in the zinc pot to immerse part (roller that promptly sinks, stablize roller, support arm, axle sleeve etc.) extremely important in galvanization production line.The quality of these parts, one influences the quality of galvanized sheet; Two influence output, benefit etc.These immersed part and produced with trades mark such as ZG30Cr25Ni20 or ZG40Cr22Ni14 in the past.After using on line, defectives such as surface corrosion pit, tiny crack, distortion appear.Will change in short about about 10 days in zinc pot life cycle, and clean reprocessing etc. again, and change the frequency height, influence is produced, and increases labour intensity etc.
(3) summary of the invention:
The objective of the invention is to solve the zinc pot that current material makes and immerse part, poor corrosion resistance, work-ing life is short, changes the frequency height, and the problem of labour intensity is produced, is increased in influence, and a kind of corrosion-resisting alloy for immersion piece of hot-dip galvanized pan is provided.
Design of the present invention is: its chemical component weight per-cent is: C≤0.08, and Si≤1.50, Mn≤1.50, P＜0.03, S＜0.03, Cr 17.50-22.00, Ni 9.00-13.00, Mo 2.00-3.00, all the other are Fe and trace impurity.
The present invention is directed to alloy contents such as Ai, Zn in the zinc pot, Si and this alloy to immersing the corrosion reaction situation of part, designed new alloy composition.Make in the zinc pot to immerse the existing enough intensity of part indeformable, can stand the corrosion of more than 500 ℃ of Ai, Zn, Si alloy solution in the zinc pot simultaneously.Make life cycle extend to 15-20 days, reduced the replacing number of times, prolong continuous time, improved output and benefit.
The present invention compared with prior art has following advantage:
1, by reducing C content, reduces grain boundary carbide and fold anti intercrystalline corrosion.
2, by reducing Cr, Ni content, reduce cost, also reduce Cr, Ni metal reaction in the zinc pot simultaneously with Ai, Zn, Si.Avoid producing the pit and the pitting attack of roll surface.
3, increase other alloys and improve matrix raising resistance to corrosion.
4, extend to 15-20 days work-ing life monocycle.
5, reduce production cost, improved output, created benefit.
(4) embodiment:
Example 1: adopt 1 ton of medium-frequency induction furnace melting, by the design of the present invention Chemical Composition of weighing be: C 0.10kg, Si 1.00kg, Mn 1.00kg, P 0.05kg, S 0.02kg, Cr175.00kg, Ni 90.00kg, Mo 20.00kg, all the other are Fe and trace impurity.To prepare burden, all going into can take a sample after stove melts is parsed into a part content, and the slag hitting deoxidation, and composition should be adjusted until qualified if any deviation.Composition is qualified, deoxidation of molten steel is good, and temperature can be done the tapping preparation after meeting processing requirement.Alloy ambient temperature mechanical properties σ S of the present invention (Mpa) 〉=205, σ b (Mpa) 〉=485, δ 5 (%) 〉=30, hardness (HB) is 190-230.
Alloy of the present invention is according to customer need, available rotary casting depositing, and also pourable static cast member, as immersion roller, stablize roller, support arm etc., according to variant production, available different production method is produced.
Example 2: adopt 1 ton of medium-frequency induction furnace melting, by the design of the present invention Chemical Composition of weighing be: C 0.40kg, Si 10.00kg, Mn 9.00kg, P 0.10kg, S 0.05kg, Cr 195.00kg, Ni 110.00kg, Mo 25.00kg, all the other are Fe and trace impurity.To prepare burden, all going into can take a sample after stove melts is parsed into a part content, and the slag hitting deoxidation, and composition should be adjusted until qualified if any deviation.Composition is qualified, deoxidation of molten steel is good, and temperature can be done the tapping preparation after meeting processing requirement.Alloy ambient temperature mechanical properties σ s of the present invention (Mpa) 〉=205, σ b (Mpa) 〉=485, δ 5 (%) 〉=30, hardness (Hb) is 190-230.
Alloy of the present invention is according to customer need, available rotary casting depositing, and also pourable static cast member, as immersion roller, stablize roller, support arm etc., according to variant production, available different production method is produced.
Example 3: adopt 1 ton of medium-frequency induction furnace melting, by the design of the present invention Chemical Composition of weighing be: C 0.80kg, Si 15.00kg, Mn 15.00kg, P 0.28kg, S 0.28kg, Cr 220.00kg, Ni 130.00kg, Mo 30.00kg, all the other are Fe and trace impurity.To prepare burden, all going into can take a sample after stove melts is parsed into a part content, and the slag hitting deoxidation, and composition should be adjusted until qualified if any deviation.Composition is qualified, deoxidation of molten steel is good, and temperature can be done the tapping preparation after meeting processing requirement.Alloy ambient temperature mechanical properties σ S of the present invention (Mpa) 〉=205, σ b (Mpa) 〉=485, δ 5 (%) 〉=30, hardness (HB) is 190-230.
Alloy of the present invention is according to customer need, available rotary casting depositing, and also pourable static cast member, as immersion roller, stablize roller, support arm etc., according to variant production, available different production method is produced.
Claims (1)
1. corrosion-resisting alloy for immersion piece of hot-dip galvanized pan, its Chemical Composition weight percent is: C≤0.08, Si≤1.50, Mn≤1.50, P＜0.03, S＜0.03, Cr 17.50-22.00, Ni 9.00-13.00, Mo 2.00-3.00, all the other are Fe and trace impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810048670A CN101638752A (en) | 2008-07-31 | 2008-07-31 | Corrosion-resisting alloy for immersion piece of hot-dip galvanized pan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810048670A CN101638752A (en) | 2008-07-31 | 2008-07-31 | Corrosion-resisting alloy for immersion piece of hot-dip galvanized pan |
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| Publication Number | Publication Date |
|---|---|
| CN101638752A true CN101638752A (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810048670A Pending CN101638752A (en) | 2008-07-31 | 2008-07-31 | Corrosion-resisting alloy for immersion piece of hot-dip galvanized pan |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674129A (en) * | 2015-01-31 | 2015-06-03 | 湘潭大学 | Zinc liquid corrosion-resistant iron-based alloy and preparation method thereof |
| CN104789861A (en) * | 2015-05-08 | 2015-07-22 | 山东钢铁股份有限公司 | High-strength molten zinc corrosion-resistant steel plate and manufacturing method thereof |
| CN115747677A (en) * | 2022-11-23 | 2023-03-07 | 江苏安宇捷热工科技有限公司 | Production formula and preparation method of roller and support arm for zinc pot |
-
2008
- 2008-07-31 CN CN200810048670A patent/CN101638752A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104674129A (en) * | 2015-01-31 | 2015-06-03 | 湘潭大学 | Zinc liquid corrosion-resistant iron-based alloy and preparation method thereof |
| CN104789861A (en) * | 2015-05-08 | 2015-07-22 | 山东钢铁股份有限公司 | High-strength molten zinc corrosion-resistant steel plate and manufacturing method thereof |
| CN115747677A (en) * | 2022-11-23 | 2023-03-07 | 江苏安宇捷热工科技有限公司 | Production formula and preparation method of roller and support arm for zinc pot |
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Open date: 20100203 |