CN101368253A - Automatic hot galvanizing technique for steel fastener - Google Patents
Automatic hot galvanizing technique for steel fastener Download PDFInfo
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- CN101368253A CN101368253A CNA2008100795681A CN200810079568A CN101368253A CN 101368253 A CN101368253 A CN 101368253A CN A2008100795681 A CNA2008100795681 A CN A2008100795681A CN 200810079568 A CN200810079568 A CN 200810079568A CN 101368253 A CN101368253 A CN 101368253A
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Abstract
The invention discloses an automatic pot galvanizing technique of a steel fastener which orderly includes the working procedures like caustic washing, acid washing, water washing, assistant plating, drying, crating, galvanizing, centrifugal zinc throwing, water cooling, passivating, drying, packaging, and the like. The galvanizing temperature is between 450 and 480 DEG C; the working procedures of galvanizing and centrifugal zinc throwing are automatically controlled; the centrifugal zinc throwing is to hoist a galvanized workpiece out of a galvanized surface with a galvanizing material basket and lead the galvanized workpiece to horizontally rotate with the galvanizing material basket to make centrifugal movement. The technique leads the galvanized workpiece to instantly carry out zinc throwing without pouring the basket; the temperature drop of the workpiece is small; the galvanizing temperature can be reduced below 480 DEG C; energy is saved; the coherence for the intensity, the precision and the quality of the fastener is ensured; the service life of a zinc boiler is prolonged; the production cost is reduced; the processes for galvanizing and zinc throwing are automatic, safe and effective; besides, the working intensity is low. The technique provided by the invention can be used for carrying out pot galvanizing on the steel fasteners like bolts, nuts, nails, and the like.
Description
Technical field
The present invention relates to a kind of metal component surface treatment process, specifically a kind of automatic hot galvanizing technique for steel fastener.
Background technology
The pot galvanize technology is widely used in the surface anticorrosion of steel and iron member, and bonding force is strong between its coating and stock, and coating has the galvanic protection effect to iron and steel, can prolong member work-ing life.That at present the hot dip galvanizing process of steel fasteners such as bolt, nut, nail comprises alkali cleaning → pickling → wash → help plating → oven dry → dress basket → go into zinc pot is zinc-plated → propose zinc pot → workpiece to pour into by zinc-plated basket and get rid of zinc → water-cooled → passivation → drying → packaging and other steps in the whizzer, wherein go into the zinc pot zinc-plated → proposition zinc pot → pour into whizzer gets rid of the shortcoming below the link existence of zinc:
1. get rid of zinc from pouring whizzer into after the zinc pot comes out, process is longer, and the workpiece temperature drop is big, and the unnecessary zinc liquid on the workpiece easily solidifies and can not get rid of zinc, therefore avoids zinc liquid to solidify to improve zinc-plated temperature to 530-560 ℃, causes thermal source to waste.
2. the raising of zinc-plated temperature also can cause the decline of fastener strength, for guaranteeing that fastening force need strengthen diameter fastener.
3. the direction of nut is irregular in whizzer, if nut bore is not pointed to the consequence that the whizzer center can cause remaining zinc liquid to throw away when getting rid of zinc.Need like this nut is carried out the secondary tapping, destroyed zinc coating, easily cause corrosion to quicken.Some producer addresses this problem by the method that strengthens the bolt and nut tolerance on fit, but can have a negative impact to fastening force so again.
4. because zinc-plated temperature height causes the corrosion aggravation of zinc liquid to iron zinc pot, produce a large amount of cadmias,, need elevated temperature again and again, cause the corrosion more serious this moment the zinc pot for the fusing cadmia.So vicious cycle makes the zinc pot lost of life even has only one month, causes the waste of the energy and material, and production cost significantly increases.
In a word, in the hot dip galvanizing process of existing steel fastener, zinc-plated with get rid of the manual operations of zinc process need, the intensity of workpiece and precision can not be guaranteed, operating process labour intensity is big, potential safety hazard is many, power consumption is big, the operation cost height.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of workpiece that soaks behind the zinc and need not down basket and can get rid of the automatic hot galvanizing technique for steel fastener of zinc operation.Zinc-plated, get rid of zinc and control automatically, the centrifugal zinc basket that gets rid of of zinc-plated charging basket double as, upright this carries out the centrifugal zinc that gets rid of after workpiece proposes the zinc liquid level, the workpiece temperature drop is little, thereby zinc-plated temperature can be reduced to below 480 ℃ and carried out save energy, the intensity that guarantees fastening piece is unaffected, and quality conformance is good; Cadmia is few, and the zinc pot prolongs work-ing life greatly, has reduced production cost, the production efficiency height, and labour intensity is little.Technology provided by the present invention can be used for steel fasteners such as bolt, nut, nail are carried out pot galvanize.
The present invention will solve the above-mentioned technical scheme that technical problem adopted: a kind of automatic hot galvanizing technique for steel fastener, comprise alkali cleaning, pickling successively, wash, help plating, oven dry, dress basket, zinc-plated, the centrifugal operations such as zinc, water-cooled, passivation, drying, packing of getting rid of, zinc-plated temperature is 450-480 ℃;
Zinc-plated, the centrifugal zinc operation of getting rid of is controlled automatically, and the centrifugal zinc that gets rid of promptly is that zinc-plated back workpiece is hung out the zinc liquid level with zinc-plated charging basket, and transfers to centrifugal motion certainly with zinc-plated charging basket level on zinc liquid liquid level.
As improvement of the present invention, the described zinc-plated and centrifugal zinc operation of getting rid of is finished automatically continuously by steel fastener automatic hot galvanizing device.
Used " steel fastener automatic hot galvanizing device " is the inventor's utility application, and number of patent application is 2008201061981.This device comprises mechanical manipulator and controlling organization thereof, by the charging basket of mechanical manipulator pick-and-place, the controlling organization of mechanical manipulator comprises pick-and-place control unit, vertical mobile control unit, horizontal rotation control piece and moves horizontally control unit; Workpiece in the zinc-plated basket of charging basket double as and the centrifugal zinc basket that gets rid of, charging basket is a centrifugal motion in exceeding that zinc liquid liquid level place does to move with the horizontal rotation of mechanical manipulator.
Above-mentioned automatic hot galvanizing technique for steel fastener provided by the present invention, all the other operations are same as the prior art, wherein
Alkali cleaning: workpiece is put in the lye vat, adjusted the alkali cleaning time, wash and finish with the residual alkali of clear water clean surface according to the greasy dirt degree of workpiece surface;
Pickling: above-mentioned workpiece through alkali cleaning and washing is put into the salt acid tank eliminate rust, the time decides according to the workpiece surface corrosion degree;
Washing: the workpiece after the pickling is removed remaining acid solution through washing;
Help plating: the above-mentioned workpiece of rinsing well is put into the coating bath that helps that is added with plating assistant agent help plating to handle, the plating assistant agent temperature is 55-65 ℃, and the pH value is 3.5-4.5;
Oven dry: will help plating back workpiece to send into oven dry in the drying baker;
Dress basket: oven dry back workpiece is packed into and is prepared pot galvanize in the charging basket;
Water-cooled: will send in the water-cooling groove water-cooled to normal temperature through pot galvanize and the centrifugal workpiece that gets rid of behind the zinc;
Passivation: workpiece is sent into and is carried out Passivation Treatment in the groove that passivator is housed after the water-cooled
Dry, packing: the workpiece through passivation carries out the dry finished product that gets, and packages spare.
Owing to adopted technique scheme, the technical progress that the present invention obtains is: the workpiece after zinc-plated hangs zinc liquid liquid level in charging basket can carry out with the centrifugal zinc that gets rid of of basket rotation, process is controlled automatically, and operation is simplified, and the time spent is short, temperature drop is little, energy-conservation, efficient, safety, galvanized workpiece quality homogeneous, the lesser temps that can be implemented in below 480 ℃ carries out pot galvanize, guarantee workpiece accuracy and intensity, reduce labor strength and operation cost simultaneously.
Advantage and characteristics that the present invention has are as follows:
1. zinc-plated basket and centrifugal basket are baskets, and upright this carries out the centrifugal zinc that gets rid of after workpiece proposes the zinc liquid level, and workpiece temperature reduces seldom, thereby can reduce zinc-plated temperature.Be generally less than 480 degree, save energy.
2. because zinc-plated temperature is lower, less to the intensity effect of fastening piece, precision, intensity, the quality conformance of assurance workpiece.
3. because zinc-plated temperature reduces, cadmia produces few.The zinc pot prolongs work-ing life, and production cost reduces.
4. zinc-plated, to get rid of the zinc process full-automatic, the production efficiency height, labour intensity is little, safety performance is high.
Below in conjunction with Figure of description and specific embodiment the present invention is described in further detail.
Description of drawings
Fig. 1 is the process flow sheet of the embodiment of the invention;
Fig. 2 is a structure diagram zinc-plated among Fig. 1, that get rid of zinc operation usefulness steel fastener automatic hot galvanizing device.
Among the figure: the 1--base; The 2--rotating stand; The 3--tubular shaft; The 4--servomotor; The 5--follow-up pulley; The 6--motion-work wheel; The 7--transmission rig; The 8--pull bar; The 9--mechanical manipulator; 10,20--anchor; 11--mechanical manipulator permanent seat; The vertical rotating shaft of 12--; The 13--power set; The 14--charging basket; 15,19--cylinder; The 16--horizontal boom; 18,22--sleeve; The 21--horizontal hinge shaft.
Embodiment
Embodiment
Figure 1 shows that a kind of automatic hot galvanizing technique for steel fastener schema.This technology comprises alkali cleaning, pickling successively, washes, helps plating, oven dry, dress basket, go into the zinc pot zinc-plated, propose the zinc liquid level and promptly carry out centrifugally getting rid of zinc, moving apart operations such as zinc pot, water-cooled, passivation, drying, packing.Wherein,
Alkali cleaning: workpiece is put in the lye vat, adjusted the alkali cleaning time, wash and finish with the residual alkali of clear water clean surface according to the greasy dirt degree of workpiece surface;
Pickling: above-mentioned workpiece through alkali cleaning and washing is put into the salt acid tank eliminate rust, the time decides according to the workpiece surface corrosion degree;
Washing: the workpiece after the pickling is removed remaining acid solution through washing;
Help plating: the above-mentioned workpiece of rinsing well is gone into to be added with helping of plating assistant agent help plating to handle in the coating bath, the plating assistant agent temperature is 55-65 ℃, and the pH value is 3.5-4.5;
Oven dry: will help plating back workpiece to send into oven dry in the drying baker;
Dress basket: oven dry back workpiece is packed into and is prepared pot galvanize in the charging basket;
Go into the zinc pot zinc-plated, the centrifugal zinc that gets rid of of zinc liquid level is proposed: finish continuously automatically by steel fastener automatic hot galvanizing device.Zinc-plated temperature is 450-480 ℃; Centrifugal get rid of zinc promptly be zinc-plated back workpiece hangs out the zinc pot in zinc-plated basket after on zinc liquid liquid level with zinc-plated basket centrifugal motion that horizontal rotation is done;
Water-cooled: will send in the water-cooling groove water-cooled to normal temperature through pot galvanize and the centrifugal workpiece that gets rid of behind the zinc;
Passivation: workpiece is sent into and is carried out Passivation Treatment in the groove that passivator is housed after the water-cooled;
Dry, packing: the workpiece through passivation carries out the dry finished product that gets, and packages spare.
The structure diagram of above-mentioned steel fastener automatic hot galvanizing device comprises mechanical manipulator 9 and controlling organization thereof, as shown in Figure 2 by the charging basket 14 of mechanical manipulator 9 pick-and-places.
The controlling organization of mechanical manipulator 9 can make that mechanical manipulator is realized pick-and-place charging basket 14, vertically moves, horizontally rotated, horizontal rotation, comprises the pick-and-place control unit is made up of members such as base 1, rotating stand 2, tubular shaft 3 and control piece cylinder 15 thereof, servomotor 4 and transmission rig 7 thereof, pull bar 8 and control piece cylinders 10 thereof, vertically mobile control unit, horizontal rotation control unit and move horizontally control unit.
Wherein, base 1 fixedly installs, and which is provided with the vertical rotating shaft 12 that is driven by power set 13, and the upper end of vertical rotating shaft 12 is associated with the rotating stand 2 of cantilever 16; The adjustment but cantilever 16 levels are stretched.
Vertical tubular shafts 3 in sleeve 18 connect with sleeve 18 through keyway, and by being arranged on the arm end that bearing on the sleeve 18 is positioned at cantilever 16, are set with sleeve 22 on the keyway of tubular shaft 3, and sleeve 22 is set with follow-up pulley 5; The servomotor 4 that is fixedly installed on the rotating stand 2 is associated with motion-work wheel 6 in its output terminal; Transmission rig 7 is the band transmission of being made up of motion-work wheel 6, follow-up pulley 5;
Pull bar 8 is through in the tubular shaft 3 and in tubular shaft 3 two ends and stretches out, and its upper end is fixed on the anchor 10, links to each other with tubular shaft 3 through cylinder 15, and its lower end and mechanical manipulator 9 connect firmly; 3 of pull bar 8 and tubular shafts form through key pin and are slidingly matched;
The bottom ring outer wall of tubular shaft 3 is fixed with mechanical manipulator permanent seat 11, and the fulcrum of mechanical manipulator 9 is articulated in permanent seat 11 bottoms through horizontal hinge shaft 21, and tubular shaft 3 is held thereon through the cylinder body of anchor 20 with cylinder 1915 and linked.
The pick-and-place control unit of mechanical manipulator 9 comprises pull bar 8, anchor 10 and cylinder 15;
The vertical mobile control unit of mechanical manipulator 9 comprises tubular shaft 3 and anchor 20, cylinder 19, and tubular shaft 3 links through anchor 20 and cylinder body 19;
The horizontal rotation control unit of mechanical manipulator 9 comprises servomotor 4 and transmission rig 7 thereof, tubular shaft 3, mechanical manipulator permanent seat 11;
The control unit that horizontally rotates of mechanical manipulator 9 comprises power set 13, rotating shaft 12, rotating stand 2, tubular shaft 3.
Zinc-plated basket of charging basket 14 double as and the centrifugal zinc basket that gets rid of, to do motion with mechanical manipulator 9 horizontal rotations be that the centrifugal zinc that gets rid of moves to the zinc-plated back of the workpiece in the charging basket 14 in exceeding zinc liquid liquid level place.
Zinc-plated, the centrifugal zinc process of getting rid of of this automatic hot galvanizing device is as follows:
A, workpiece after pre-treatment, move on control piece 10 drive pull bars 8 in charging basket, make mechanical manipulator 9 that the charging basket 14 of workpiece promptly is housed;
B, drive,, charging basket 14 is horizontally rotated above the zinc pot by cooperating of rotating stand 2 and base 1 by power set 13.
C, control piece 15 drives pull bars and moves down with tubular shaft 3, realize zinc-plated automatically by workpiece in 14 pairs of baskets of mechanical manipulator 9 grasping charging baskets, by controlling the zinc coating that galvanizing time obtains required consistency of thickness;
D, control piece 15 drive on pull bar and the tubular shaft 3 and move, make charging basket 14 shift out the zinc pot, drive tubular shaft 3 horizontal rotations by servomotor 4 and transmission rig thereof simultaneously, thereby drive charging basket 14 horizontal rotations, make workpiece when shifting out the zinc pot fast, carry out the centrifugal zinc that gets rid of and handle.
E, drive,, charging basket 14 horizontally rotated to remove above the zinc pot carry out the water-cooled operation by cooperating of rotating stand 2 and base 1 by power set 13.
Zinc-plated basket of charging basket 14 double as and the centrifugal zinc basket that gets rid of, to do motion with mechanical manipulator 9 horizontal rotations be that the centrifugal zinc that gets rid of moves to the zinc-plated back of the workpiece in the charging basket 14 in exceeding zinc liquid liquid level place.
Claims (2)
1. automatic hot galvanizing technique for steel fastener comprises alkali cleaning, pickling, washes, helps plating, oven dry, dress basket, zinc-plated, the centrifugal operations such as zinc, water-cooled, passivation, drying, packing of getting rid of that it is characterized in that: described zinc-plated temperature is 450-480 ℃ successively;
Zinc-plated, the centrifugal zinc operation of getting rid of is controlled automatically, and the centrifugal zinc that gets rid of promptly is that zinc-plated back workpiece is hung the zinc liquid level with zinc-plated charging basket, and transfers to centrifugal motion certainly with zinc-plated charging basket level on zinc liquid liquid level.
2. automatic hot galvanizing technique for steel fastener according to claim 1 is characterized in that: the described zinc-plated and centrifugal zinc operation of getting rid of is finished automatically continuously by steel fastener automatic hot galvanizing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100795681A CN101368253A (en) | 2008-10-16 | 2008-10-16 | Automatic hot galvanizing technique for steel fastener |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100795681A CN101368253A (en) | 2008-10-16 | 2008-10-16 | Automatic hot galvanizing technique for steel fastener |
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| CN101368253A true CN101368253A (en) | 2009-02-18 |
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| CNA2008100795681A Pending CN101368253A (en) | 2008-10-16 | 2008-10-16 | Automatic hot galvanizing technique for steel fastener |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984129A (en) * | 2010-10-15 | 2011-03-09 | 宁波市鄞州计氏金属表面处理厂 | Galvanizing technology for high-strength fastening piece |
| CN103071969A (en) * | 2011-10-26 | 2013-05-01 | 朝友工业股份有限公司 | Method for manufacturing composite screw |
| CN105821363A (en) * | 2016-05-27 | 2016-08-03 | 昆山福亿特精密自动化设备有限公司 | Full-automatic hot galvanizing production line |
| CN106148870A (en) * | 2016-07-14 | 2016-11-23 | 安徽樵森电气科技股份有限公司 | A kind of irony extends ring surface galvanized method |
| CN106916932A (en) * | 2017-04-17 | 2017-07-04 | 浙江亦宸五金有限公司 | A kind of corrosion-resistant quenching technical of high-strength bolt |
| CN107245684A (en) * | 2017-05-15 | 2017-10-13 | 海盐哈特惠机械五金制品有限公司 | A kind of high-intensity fasteners hot dip galvanizing process |
| CN109594031A (en) * | 2018-12-14 | 2019-04-09 | 浙江格力威机械股份有限公司 | The technique zinc-plated to bolt surface |
| CN109797357A (en) * | 2019-02-02 | 2019-05-24 | 南京嘉迪紧固件制造有限公司 | A kind of fastener hot galvanizing method |
| CN110735100A (en) * | 2018-11-11 | 2020-01-31 | 海盐宝利机械有限公司 | rotary lifting type hot galvanizing continuous production system and production process |
| CN110923762A (en) * | 2019-12-11 | 2020-03-27 | 倪立秧 | Surface galvanizing treatment process for fastener |
| CN111262374A (en) * | 2020-03-20 | 2020-06-09 | 杭州宝玛机电有限公司 | Motor rear end cover and machining process thereof |
| CN112226716A (en) * | 2020-09-09 | 2021-01-15 | 余姚市永林机械科技有限公司 | Hot galvanizing suspension device |
| CN113430476A (en) * | 2021-05-14 | 2021-09-24 | 扬州传扬电缆材料有限公司 | Hot galvanizing treatment system for surface of galvanized steel sheet |
| CN113774303A (en) * | 2021-08-14 | 2021-12-10 | 江苏神舟灯饰有限公司 | Workpiece surface treatment process |
-
2008
- 2008-10-16 CN CNA2008100795681A patent/CN101368253A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984129A (en) * | 2010-10-15 | 2011-03-09 | 宁波市鄞州计氏金属表面处理厂 | Galvanizing technology for high-strength fastening piece |
| CN103071969A (en) * | 2011-10-26 | 2013-05-01 | 朝友工业股份有限公司 | Method for manufacturing composite screw |
| CN105821363A (en) * | 2016-05-27 | 2016-08-03 | 昆山福亿特精密自动化设备有限公司 | Full-automatic hot galvanizing production line |
| CN106148870A (en) * | 2016-07-14 | 2016-11-23 | 安徽樵森电气科技股份有限公司 | A kind of irony extends ring surface galvanized method |
| CN106916932A (en) * | 2017-04-17 | 2017-07-04 | 浙江亦宸五金有限公司 | A kind of corrosion-resistant quenching technical of high-strength bolt |
| CN107245684B (en) * | 2017-05-15 | 2019-07-30 | 海盐哈特惠机械五金制品有限公司 | A kind of high-intensity fasteners hot dip galvanizing process |
| CN107245684A (en) * | 2017-05-15 | 2017-10-13 | 海盐哈特惠机械五金制品有限公司 | A kind of high-intensity fasteners hot dip galvanizing process |
| CN110735100A (en) * | 2018-11-11 | 2020-01-31 | 海盐宝利机械有限公司 | rotary lifting type hot galvanizing continuous production system and production process |
| CN109594031A (en) * | 2018-12-14 | 2019-04-09 | 浙江格力威机械股份有限公司 | The technique zinc-plated to bolt surface |
| CN109594031B (en) * | 2018-12-14 | 2021-03-23 | 浙江格力威机械股份有限公司 | Process for galvanizing surface of bolt |
| CN109797357A (en) * | 2019-02-02 | 2019-05-24 | 南京嘉迪紧固件制造有限公司 | A kind of fastener hot galvanizing method |
| CN110923762A (en) * | 2019-12-11 | 2020-03-27 | 倪立秧 | Surface galvanizing treatment process for fastener |
| CN111262374A (en) * | 2020-03-20 | 2020-06-09 | 杭州宝玛机电有限公司 | Motor rear end cover and machining process thereof |
| CN111262374B (en) * | 2020-03-20 | 2021-03-05 | 杭州宝玛机电有限公司 | Machining process of rear end cover of motor |
| CN112226716A (en) * | 2020-09-09 | 2021-01-15 | 余姚市永林机械科技有限公司 | Hot galvanizing suspension device |
| CN112226716B (en) * | 2020-09-09 | 2023-01-17 | 余姚市永林机械科技有限公司 | Hot galvanizing suspension device |
| CN113430476A (en) * | 2021-05-14 | 2021-09-24 | 扬州传扬电缆材料有限公司 | Hot galvanizing treatment system for surface of galvanized steel sheet |
| CN113774303A (en) * | 2021-08-14 | 2021-12-10 | 江苏神舟灯饰有限公司 | Workpiece surface treatment process |
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Open date: 20090218 |