CN102732815A - Surface treatment method of cavity steel structure rod piece - Google Patents
Surface treatment method of cavity steel structure rod piece Download PDFInfo
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- CN102732815A CN102732815A CN2012102446770A CN201210244677A CN102732815A CN 102732815 A CN102732815 A CN 102732815A CN 2012102446770 A CN2012102446770 A CN 2012102446770A CN 201210244677 A CN201210244677 A CN 201210244677A CN 102732815 A CN102732815 A CN 102732815A
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- steelwork
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- rod member
- bleeding
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Abstract
The invention discloses a surface treatment method of a cavity steel structure rod piece and belongs to the technical field of surface treatment of a metal component. A vacuumizing technology is used for pumping air in a rod piece cavity of the cavity steel structure out and a hot dip galvanizing process is carried out; with the adoption of a negative pressure technology, problems of air aeration in the hot dip galvanizing process of a cavity metal component and occlusion zinc of an inner cavity are solved; the cost of the surface treatment method of the existing cavity steel structure rod piece is reduced; and the service life of the cavity steel structure rod piece is longer.
Description
Technical field
The present invention relates to a kind of surface treatment method that chamber steelwork rod member is arranged, belong to the metal component surface processing technology field.
Background technology
Existing have the process for treating surface of chamber metal rod to have three kinds: the one, hardware carried out shot blasting after, spray again or brush the steelwork tailor-made paint, be characterized in that cost is low, shortcoming is that preservative effect is poor; The 2nd, with there being metal rod plastic-blasting after acid pickling and rust removing or phosphatization in chamber to handle, be characterized in that component surface is level and smooth, easy coloring, antiseptic property is better, and shortcoming is to be afraid of percussion, is prone to the big area peeling; The third is to there being the chamber metal rod to adopt the mode of surface spray zinc to handle; Usually adopt zinc-plated tubing, step is zinc-plated tubing to be carried out as required according to demand tailor's measure → with tubing two-port place high temperature dezincify → welding is put down, conehead → again zinc is sprayed in the commissure; Adopt the shortcoming of this technology to be: zinc-plated tubing cost is higher, and bad control of temperature and dezincify size are inaccurate during the high temperature dezincify; Weld strength is not affected because of dezincify easily only; Be not easy to form zinc-iron alloy layer during weld seam spray zinc, the not firm commissure that causes of zinc layer has been prone to bag.If directly to there being metal rod surface, chamber to carry out heat dip zinc treating, the problem of gas explosion and inner chamber occlusion zinc then possibly take place, can so seeking the low and metal that surface treatment effect is good of a kind of cost, chamber rod member surface treatment mode is arranged is pursuing one's goal of each manufacturer.
Summary of the invention
To the problem that above-mentioned prior art exists, the present invention provides a kind of surface treatment method that chamber steelwork rod member is arranged, and the anticorrosion time of product of adopting this method to obtain is long, and cost performance is high.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of surface treatment method that chamber steelwork rod member is arranged, and to being arranged, chamber steelwork rod member carries out surface treatment, and the concrete steps of this treatment process are:
(A) will have a termination of chamber steelwork rod member to adopt the sealing bolt shutoff, the mouth of bleeding is inserted in another termination;
(B) butt welded seam carries out verification, and it is air tight to define chamber steelwork rod member;
(C) confirming to carry out vacuum pumping through the mouth of bleeding to chamber steelwork rod member is arranged under the gastight situation, will have the air in the steelwork rod member of chamber to extract out;
(D) the mouth the other end of will bleeding is installed vacuum pressure gauge, and the vacuum pressure value in the steelwork rod member of chamber arrives-0.1～-during 0.08MPa, take off vacuum pressure gauge, to being arranged, chamber steelwork rod member carries out shutoff;
(E) after the shutoff to there being chamber steelwork rod member to carry out pickling;
(F) surperficial Adjusting Mechanism is handled with the surface after showing to transfer liquid to pickling;
(G) when zinc liquid temperature is 500-600 ℃, heat dip zinc treating is carried out on the full surface that chamber steelwork rod member is arranged;
(H) Passivation Treatment is carried out on the full surface that chamber steelwork rod member is arranged;
(I) take off the mouth of bleeding, obtain finished product.
The invention has the beneficial effects as follows: adopt negative pressure technique, solved gas explosion and inner chamber occlusion zinc problem when chamber hardware galvanizing is arranged; Reduced the cost of the surface treatment method that chamber steelwork rod member is arranged, chamber steelwork rod member longer service life has been arranged.
Embodiment
Be described further below in conjunction with embodiment the present invention.
Embodiment one: a kind of surface treatment method that chamber steelwork rod member is arranged, and to being arranged, chamber steelwork rod member carries out surface treatment, and the concrete steps of this treatment process are:
(A) will have the termination of chamber steelwork rod member to adopt the sealing bolt shutoff, conehead inserts the mouth of bleeding;
(B) butt welded seam carries out verification, and it is air tight to define chamber steelwork rod member;
(C) confirming to carry out vacuum pumping through the mouth of bleeding to chamber steelwork rod member is arranged under the gastight situation, will have the air in the steelwork rod member of chamber to extract out;
(D) the mouth the other end of will bleeding is installed vacuum pressure gauge, during vacuum pressure value arrival-0.1MPa in the steelwork rod member of chamber, takes off vacuum pressure gauge, carries out shutoff to chamber steelwork rod member is arranged;
(E) after the shutoff to there being chamber steelwork rod member to carry out pickling;
(F) surperficial Adjusting Mechanism is handled with the surface after showing to transfer liquid to pickling;
When (G) zinc liquid temperature is 500 ℃ heat dip zinc treating is carried out on the full surface that chamber steelwork rod member is arranged;
(H) Passivation Treatment is carried out on the full surface that chamber steelwork rod member is arranged;
(I) take off the mouth of bleeding, obtain finished product.
Embodiment two: a kind of surface treatment method that chamber steelwork rod member is arranged, and to being arranged, chamber steelwork rod member carries out surface treatment, and the concrete steps of this treatment process are:
(A) will have the termination of chamber steelwork rod member to adopt the sealing bolt shutoff, conehead inserts the mouth of bleeding;
(B) butt welded seam carries out verification, and it is air tight to define chamber steelwork rod member;
(C) confirming to carry out vacuum pumping through the mouth of bleeding to chamber steelwork rod member is arranged under the gastight situation, will have the air in the steelwork rod member of chamber to extract out;
(D) the mouth the other end of will bleeding is installed vacuum pressure gauge, during vacuum pressure value arrival-0.08MPa in the steelwork rod member of chamber, takes off vacuum pressure gauge, carries out shutoff to chamber steelwork rod member is arranged;
(E) after the shutoff to there being chamber steelwork rod member to carry out pickling;
(F) surperficial Adjusting Mechanism is handled with the surface after showing to transfer liquid to pickling;
When (G) zinc liquid temperature is 600 ℃ heat dip zinc treating is carried out on the full surface that chamber steelwork rod member is arranged;
(H) Passivation Treatment is carried out on the full surface that chamber steelwork rod member is arranged;
(I) take off the mouth of bleeding, obtain finished product.
Claims (1)
1. the surface treatment method of a steelwork rod member is characterized in that the concrete steps of this treatment process are:
(A) will have one of chamber steelwork rod member to adopt the sealing bolt shutoff, the mouth of bleeding is inserted in the other end;
(B) butt welded seam carries out verification, and it is air tight to define chamber steelwork rod member;
(C) confirming to carry out vacuum pumping through the mouth of bleeding to chamber steelwork rod member is arranged under the gastight situation, will have the air in the steelwork rod member of chamber to extract out;
(D) the mouth the other end of will bleeding is installed vacuum pressure gauge, and the vacuum pressure value in the steelwork rod member of chamber arrives-0.1～-during 0.08MPa, take off vacuum pressure gauge, to being arranged, chamber steelwork rod member carries out shutoff;
(E) after the shutoff to there being chamber steelwork rod member to carry out pickling;
(F) surperficial Adjusting Mechanism is handled with the surface after showing to transfer liquid to pickling;
When (G) zinc liquid temperature is 500-600 ℃ heat dip zinc treating is carried out on the full surface that chamber steelwork rod member is arranged;
(H) Passivation Treatment is carried out on the full surface that chamber steelwork rod member is arranged;
(I) take off the mouth of bleeding, obtain finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102446770A CN102732815A (en) | 2012-07-13 | 2012-07-13 | Surface treatment method of cavity steel structure rod piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102446770A CN102732815A (en) | 2012-07-13 | 2012-07-13 | Surface treatment method of cavity steel structure rod piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102732815A true CN102732815A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102446770A Pending CN102732815A (en) | 2012-07-13 | 2012-07-13 | Surface treatment method of cavity steel structure rod piece |
Country Status (1)
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| CN (1) | CN102732815A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651592A (en) * | 2005-01-28 | 2005-08-10 | 左树清 | Preparation method of external zinc coated pipe |
| CN1936063A (en) * | 2006-09-29 | 2007-03-28 | 江苏双良空调设备股份有限公司 | Air cooler heat exchange pipe external surface hot-dipping aluminium-plating method |
| KR20090067868A (en) * | 2007-12-21 | 2009-06-25 | 주식회사 포스코 | Support roll with excellent driving quality used in zinc pot |
| CN201433241Y (en) * | 2009-06-30 | 2010-03-31 | 吴爱国 | Ungalvanized sealing tool for blank pipe inner wall |
-
2012
- 2012-07-13 CN CN2012102446770A patent/CN102732815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1651592A (en) * | 2005-01-28 | 2005-08-10 | 左树清 | Preparation method of external zinc coated pipe |
| CN1936063A (en) * | 2006-09-29 | 2007-03-28 | 江苏双良空调设备股份有限公司 | Air cooler heat exchange pipe external surface hot-dipping aluminium-plating method |
| KR20090067868A (en) * | 2007-12-21 | 2009-06-25 | 주식회사 포스코 | Support roll with excellent driving quality used in zinc pot |
| CN201433241Y (en) * | 2009-06-30 | 2010-03-31 | 吴爱国 | Ungalvanized sealing tool for blank pipe inner wall |
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Application publication date: 20121017 |