CN106676466A - Technology and equipment for zinc impregnation in non-vacuum environment - Google Patents
Technology and equipment for zinc impregnation in non-vacuum environment Download PDFInfo
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- CN106676466A CN106676466A CN201710130929.XA CN201710130929A CN106676466A CN 106676466 A CN106676466 A CN 106676466A CN 201710130929 A CN201710130929 A CN 201710130929A CN 106676466 A CN106676466 A CN 106676466A
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- zincizing
- protective gas
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- vacuum environment
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
- C23C10/36—Embedding in a powder mixture, i.e. pack cementation only one element being diffused
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Abstract
The invention relates to a technology and equipment for zinc impregnation in a non-vacuum environment. According to the technology, zinc impregnation treatment is performed on a metal workpiece in the gas shielding atmosphere with the preset concentration. With the technology, zinc impregnation treatment can be performed in the closed environment and can also be performed in the non-sealed environment. The equipment comprises an open zinc impregnation chamber and a shielding gas applying device; the open zinc impregnation chamber comprises a zinc impregnation space as well as an open workpiece inlet and an open workpiece outlet which communicate with the zinc impregnation space; and the shielding gas applying device is used for filling the zinc impregnation space with shielding gas, so that the gas shielding atmosphere is formed in the zinc impregnation space. With the equipment, the zinc impregnation treatment can be performed in the open environment, continuous industrial production of zinc impregnation can be realized, the production efficiency can be remarkably improved, and all that is required is to heat and cool the metal workpiece during continuous production, so that the energy consumption can be remarkably reduced, and the emission can be reduced.
Description
Technical field
The invention belongs to metal surface chemical treatment and the research and development of metal material DIFFUSION TREATMENT equipment and technology and application technology neck
Domain, specifically, the present invention relates to the zincizing Processes and apparatus under a kind of non-vacuum environment.
Background technology
Zincizing is the surface protection technique for obtaining zinc-iron alloy layer in surface of workpiece with thermal diffusion method, is by zincizing
Agent and metal works etc. are co-located in Sherardizing furnace, and under predetermined technological temperature, zinc atom is internally permeated by surface of workpiece,
Iron atom then spreads from inside to outside simultaneously, whereby, one layer of uniform zinc-iron compound, i.e. zincizing is formed on metal works top layer
Metal works are realized cathodic protection by layer by zinc coat.
At present, the powder zincizing to surface of workpiece is processed, and is mainly carried out under closed vacuum environment, specifically
There is following two ways：
One be using Sealing furnace " static state " zincizing, will metal works, zinc powder and various penetration-assisting agents load in Sealing furnace, make
Metal works are embedded in compound powder, and after being heated to predetermined technological temperature, held for some time realizes that diffusion type oozes under " static state "
Zinc, after zincizing terminates, comes out of the stove after cooling to predetermined temperature.
This kind of zincizing mode, due to needing to carry out filling out stove seal operation before zincizing, needs Kaifeng to come out of the stove again after treatment,
Therefore, its handling process can only be the mode by stove treatment, and each stove is required to heat up before treatment in addition, and drops after treatment
Temperature, the whole process time of each stove takes around 6~8 hours, and its zincizing treatment ineffective time spends long, causes at technique
Reason inefficiency, heating, cooling process wastes substantial amounts of time, the energy and labour.
Two is using rotary Sherardizing furnace " dynamic " zincizing.Rotary Sherardizing furnace is main by support roller, burner hearth body, heating unit
Part, hermetic rotary zincizing tank, Rolling motor composition；During operation, by metal works, zinc powder, various auxiliary agents, inertia impact media
It is fitted into the lump in hermetic rotary zincizing tank, then closed zincizing tank lifting is put into burner hearth body, and be set up in both sides
On support roller, drive zincizing tank to rotate by Rolling motor, while being heated to zincizing tank, the scheduled time is processed at a predetermined temperature
Afterwards, heating element heater is closed, zincizing tank furnace cooling is then turned off Rolling motor and hangs out zincizing tank, finally beats to predetermined temperature
Open the workpiece after zincizing tank taking-up treatment.When metal works batch is big, also a large amount of workpiece can be once dispensed to several zincizings
In tank, several zincizing tanks are lifted simultaneously and is processed to mesh belt transmission formula Sherardizing furnace, and concentration carries out lower tank pickup.
This kind of zincizing mode, by the rolling of zincizing tank so that form mechanical friction between zinc particle and metal works,
To accelerate the reaction of zinc atom and surface of workpiece atom, the effect that mechanical auxiliary oozes is reached, but, rolled rotating speed by zincizing tank
Limited, the kinetic energy energy of acquisition is small, it is impossible to effectively excite the activation energy of zinc atom, be additionally, since before zincizing need into
Row fills out stove seal operation, needs Kaifeng to come out of the stove again after treatment, therefore, its handling process can only be processed by stove, in addition
Each stove is required to heat up before treatment, and lowers the temperature after treatment, and it is small that the whole process time of each stove part stills need 5~6
When, it is still limited to improve zincizing efficiency effect by way of machinery rotation is helped and oozed, it is difficult to meet serialization, extensive
The beat requirement of production.
In addition, though rotary Sherardizing furnace is by the structure that separates hermetic rotary zincizing tank and burner hearth, can be by
The rolling of zincizing tank improves zincizing efficiency, but, because the rotary motion of hermetic rotary zincizing tank is so that it can not realize interior
Portion heats, and can only, by the heating element heater between burner hearth and hermetic rotary zincizing tank, first hermetic rotary be oozed
Zinc can is externally heated, then delivers heat to its internal metal works by zincizing tank again, and this is resulted in, heating element heater spoke
The heat penetrated can consume a part by flue, it is impossible to fast and effeciently conduct to metal works, extend heating metal works institute
The time (while also extending temperature fall time) for needing, reduce efficiency so that the disposed of in its entirety time of each tank is elongated, meanwhile,
Heating and cooling zincizing tank again because adds additional the loss of heat and caused by energy waste, and increased dirty to the heat of environment
Dye.
It follows that existing zincizing technology, due to equipment and the limitation of technique, it can only divide stove to process, and at single stove
Reason amount less, the time it is long, with every stove process 300~800 kilograms, 6~8 hours per furnace gauge calculate, at most can only also process 3 tons daily,
Production efficiency is very low, it is impossible to the need for meeting large-scale production, but also is difficult to ensure that the homogeneity of product quality, together
When, its metal works shove charge, frequent operation of coming out of the stove, labour's consumption are big, and, each stove is required to heating, cooling, not only wave
Take the substantial amounts of energy, it is also possible to the pollution to environment can be brought, do not meet the environmentally friendly trend of energy-saving and emission-reduction.
The content of the invention
(1) technical problem to be solved
In order to solve the above mentioned problem of prior art, the present invention provides the zincizing technique under a kind of non-vacuum environment, its nothing
Zincizing treatment need under vacuum conditions be carried out so that be no longer limited to can only zincizing in a sealed meter environment, can also be in open loop
Zincizing under border, the limitation that prior art can be overcome to be processed by stove.
The present invention also provides the zinc penetration equipment under a kind of non-vacuum environment, and it without carrying out at zincizing under vacuum conditions
Reason so that be no longer limited to can only zincizing in a sealed meter environment, can also can overcome prior art in zincizing under open environment
Can only be by the limitation of stove treatment.
(2) technical scheme
In order to achieve the above object, the main technical schemes that the present invention is used include：
A kind of zincizing technique under non-vacuum environment, it is that (for example inert gas, nitrogen etc. exist in the gas of predetermined concentration
The gas chemically reacted with zinc, iron is difficult under zincizing environment) protection atmosphere under zincizing treatment is carried out to metal works.
Zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein：The gas shield atmosphere of predetermined concentration
Predetermined value is no more than including oxygen concentration.Preferably, oxygen concentration is no more than 7%~10% (volume).
Zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein：The gas shield atmosphere of predetermined concentration
Predetermined value is not less than including protective gas concentration.Preferably, protective gas concentration is not less than 90%~93% (volume).
Zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein：The gas shield atmosphere of predetermined concentration
Including oxygen concentration predetermined value (90%~93% body is not less than no more than predetermined value (7%~10% volume) and protective gas concentration
Product).
Zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein：The gas shield atmosphere of predetermined concentration
It is to be formed in a closing space.
Further, the protective gas pressure in closing space is no more than a standard atmospheric pressure.
Further, the air pressure in closing space is no more than a standard atmospheric pressure.
Zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein：The gas shield atmosphere of predetermined concentration
It is to be formed in an open space.
Further, the gas shield atmosphere of predetermined concentration is that protective gas by dynamically flowing is formed.
Further, dynamic flowing includes flowing in the first direction, in a second direction flowing and/or along third direction stream
It is dynamic, wherein, first direction, second direction and/or third direction are rectilinear direction or non-rectilinear direction.
Zincizing technique under any of the above-described non-vacuum environment of embodiment, wherein：Zincizing treatment refers to powder zincizing.
A kind of zinc penetration equipment under non-vacuum environment, it includes：
Open zincizing room, it has zincizing space and the open workpiece entrance that is connected with zincizing space and open
Workpiece is exported；
Protective gas bringing device, for protective gas is filled in zincizing space, to form gas shield atmosphere wherein
Enclose.
Zinc penetration equipment under the non-vacuum environment of one embodiment of the invention, wherein：Protective gas bringing device include into
Mouthful protective gas filling section, for from workpiece entrance to filling protective gas in zincizing space.
Zinc penetration equipment under the non-vacuum environment of one embodiment of the invention, wherein：Protective gas bringing device includes
Mouth protective gas filling section, protective gas is filled for being exported from workpiece in zincizing space.
Zinc penetration equipment under the non-vacuum environment of one embodiment of the invention, wherein：During protective gas bringing device includes
Portion's protective gas filling part, between workpiece entrance and workpiece outlet to filling protective gas in zincizing space.
Zinc penetration equipment under the non-vacuum environment of one embodiment of the invention, wherein：Protective gas bringing device includes：
Ingress protection gas filling section, for from workpiece entrance to filling protective gas in zincizing space；
Outlet protective gas filling section, protective gas is filled for being exported from workpiece in zincizing space；
Middle part protective gas filling part, for from protecting gas to filling in zincizing space between workpiece entrance and workpiece outlet
Body.
Zinc penetration equipment under the non-vacuum environment of one embodiment of the invention, wherein：Set aerobic in open zincizing room
Gas Concentration Testing meter and pressure detecting meter.
(3) beneficial effect
The beneficial effects of the invention are as follows：
Zincizing technique and equipment under non-vacuum environment of the invention, it need not under vacuum conditions carry out zincizing treatment,
So that be no longer limited to can only zincizing in a sealed meter environment, can also in zincizing under open environment, can overcome prior art only
Can be by the limitation of stove treatment, it is possible to achieve continuous zincizing, production efficiency is significantly improved, and without that per stove heating, cooling, can begin
The temperature in zincizing space is kept eventually, only part need to be passed in and out, and due to only needing to part heating, cooling, its energy consumption is significantly reduced,
In addition, continous way production also facilitates ensuring that the homogeneity of part after treatment.
Brief description of the drawings
Fig. 1 is the zinc penetration equipment structured flowchart under the non-vacuum environment of one embodiment of the invention；
Fig. 2 is the overall structure diagram of the zinc penetration equipment under the non-vacuum environment of one embodiment of the invention；
Fig. 3 is the ingress protection gas filling section in the zinc penetration equipment under the non-vacuum environment of one embodiment of the invention
Structural representation；
Fig. 4 is the ingress protection gas filling section in the zinc penetration equipment under the non-vacuum environment of another embodiment of the present invention
Structural representation；
Fig. 5 is the structural representation of the zincizing room in the zinc penetration equipment under the non-vacuum environment of one embodiment of the invention；
Fig. 6 is the zincizing process chart under the non-vacuum environment of one embodiment of the invention；
Fig. 7 is the zincizing technique part flow chart under the non-vacuum environment of one embodiment of the invention；
Fig. 8 is the zincizing technique part flow chart under the non-vacuum environment of another embodiment of the present invention.
【Description of reference numerals】
1：Access road；
2：Entrance negative pressure section；
3：Ingress protection gas filling section；
31：Protective gas delivery pipe；
32：First entrance；
33：First outlet；
4：Pre- thermal center；
5：Open zincizing room；
S：Zincizing space；S1：Accommodation space；
51：Impeller head；
52：Zinc powder sprinkler；
53：Workpiece entrance；
54：Workpiece is exported；
6：Output insulation section；
7：Outlet protective gas filling section；
8：Outlet negative pressure section；
9：Exit passageway；
10：Middle part protective gas filling part；
L：Chain.
Specific embodiment
In order to preferably explain the present invention, in order to understand, below in conjunction with the accompanying drawings, by specific embodiment, to this hair
It is bright to be described in detail.
Referring to Fig. 1, the zinc penetration equipment under the non-vacuum environment of one embodiment of the invention, it includes：
Open zincizing room 5, its have zincizing space S and the open workpiece entrance 53 that is connected with zincizing space S and
Open workpiece outlet 54；
Protective gas bringing device, for protective gas is filled in zincizing space S, to form gas shield atmosphere wherein
Enclose.
The gas shield atmosphere of predetermined concentration is formed in zincizing space S by protective gas bringing device, and wherein
Zincizing treatment is carried out to metal works.And because zincizing space S could be arranged to open, it can be by workpiece entrance 53
Continuous input metal works, after treatment, again can be by the continuous output of workpiece outlet 54, it is possible to achieve continuous zincizing, be conducive to
The continuous production of industrialization is realized, efficiency can be significantly improved, simultaneously as zincizing space S is without heating, cooling repeatedly, can be with
Significantly energy-saving and emission-reduction.For example can be by chain L continuous conveying metal works.
Referring to Fig. 2, in one embodiment of the present of invention, protective gas bringing device includes ingress protection gas filling section 3,
For from workpiece entrance 53 to filling protective gas in zincizing space S.
Whereby, protective gas can be passed through by workpiece entrance 53, then is exported by workpiece outlet 54 so that in zincizing space S
Form a gas shield atmosphere for flowing.
Wherein, ingress protection gas filling section 3 has a first entrance 32 and a first outlet 33, its first outlet
33 it is connected with the workpiece entrance 53 of open zincizing room 5 (preferably dock, more preferably the two openings of sizes is identical), work
Part can enter zincizing space S through first entrance 32, first outlet 33 and workpiece entrance 53, by protective gas bringing device
Ingress protection gas filling section 3, the passage length that can extend at workpiece entrance 53 helps to maintain the gas in zincizing space S
Body protects the stability of atmosphere.
As shown in figure 3, setting several gas between the first entrance 32 and first outlet 33 of ingress protection gas filling section 3
Body delivery port, for example can in side wall circumferentially 6 or 8 or 18 gas feed ports of ingress protection gas filling section 3,
Gas feed port is easy to protective gas to be passed through in zincizing space S preferably towards the direction of first outlet 33.
As shown in figure 4, ingress protection gas filling section 3 has expansion segment, gas access is easy to set in expansion segment
The opening direction of gas access, simultaneously as the internal diameter size of expansion segment is larger so that the protective gas tool of the side of first outlet 33
There is larger volume, be conducive to maintaining the stabilization of gas shield atmosphere in zincizing space S.
Preferably, expansion segment extends to the position of first outlet 33, preferably, its internal diameter size opening more than first outlet 33
Mouth size.
In one embodiment of the present of invention, protective gas bringing device includes outlet protective gas filling section 7, for by work
Part outlet 54 in zincizing space S to filling protective gas.
Wherein, outlet protective gas filling section 7 could be arranged to symmetrical with foregoing ingress protection gas filling section 3
Structure, butts up against workpiece and exports 54 positions, the passage length at extension workpiece outlet 54, in helping to maintain zincizing space S
The stability of gas shield atmosphere.
In one embodiment of the present of invention, protective gas bringing device includes middle part protective gas filling part 10, for by
To filling protective gas in zincizing space S between workpiece entrance 53 and workpiece outlet 54.
Whereby, can be by by being passed through protective gas in the middle part of zincizing space S, then by workpiece entrance 53 and workpiece outlet 54
The mode of protective gas is discharged, gas shield atmosphere is formed in zincizing space S.
Preferably, middle part protective gas filling part 10 includes several gas feed ports, the middle part of zincizing space S is distributed in
Near, it is preferably, circumferential uniform.For example, one or two can respectively be arranged up and down, or each side setting 3
~9 or more.
In a preferred embodiment of the present invention, further, can be in the workpiece entrance 53, work of open zincizing room 5
Part outlet 54 is respectively provided with ingress protection gas filling section 3 and outlet protective gas filling section 7.
During operation, protective gas can be passed through by workpiece entrance 53, workpiece outlet 54 simultaneously, it is also possible to two-way after first
Gas, forms gas shield atmosphere in zincizing space S.At this point it is possible to make protective gas export 54 by workpiece entrance 53, workpiece
Overflow, both kept the stability of protective gas, the pressure of protective gas can be properly increased again, it is also possible to set in other positions
Protective gas is exported, to form the gas shield atmosphere of stabilization.
Further, as shown in figure 1,54 and middle part can be exported in the workpiece entrance 53, workpiece of open zincizing room 5
Position is respectively provided with ingress protection gas filling section 3, outlet protective gas filling section 7 and middle part protective gas filling part 10.
During operation, can be first from middle part to protective gas be passed through in zincizing space S, by air therein discharge, then by work
Part entrance 53, workpiece outlet 54 is passed through protective gas simultaneously, and gas shield atmosphere is formed in zincizing space S.
Other modes can also be used, is such as passed through simultaneously or first (is first led to by workpiece entrance 53 or workpiece outlet 54 two after one
Gas, then the two ventilates simultaneously) or first three after one (first ventilated by workpiece entrance 53 or workpiece outlet 54, then with medium position three
Ventilate simultaneously) mode of protective gas is passed through, gas shield atmosphere is formed in zincizing space S.
Preferably, foregoing each protective gas delivery port can connect the protective gas of outside by protective gas delivery pipe 31
Source.
Preferably, being not provided with single protective gas outlet, but protective gas is made to be exported by workpiece entrance 53, workpiece
54 are overflowed, and can both keep the stability of protective gas, and the pressure of protective gas can be properly increased again, while, it is possible to reduce
The heat that protective gas is taken away, reduces energy resource consumption.
Preferably, in the side of first outlet 33 of ingress protection gas filling section 3, pre- thermal center 4 is additionally provided with, for metal
Workpiece is preheated, and can be escaped into ingress protection gas with preheated section 4 by the protective gas that workpiece entrance 53 is discharged and be filled
Section 3.
For example, pre- thermal center 4 can be configured with the both ends open structure of penetrating via, its entrance opposed inlet protection gas
The first outlet 33 of body filling section 3 so that metal works and protective gas can be preheated when through its penetrating via, then
Into zincizing space S.
In embodiment as shown in Figure 4, heating element heater can also be set in ingress protection gas filling section 3, make its same
The pre- thermal centers of Shi Zuowei are used.
Preferably, can also be in ingress protection gas filling 3 inlet porting negative pressure sections 2 of section, in micro- negative in entrance negative pressure section 2
Pressure condition, is evacuated to ingress protection gas filling section 3, and air, unnecessary protective gas so as to guiding spilling, zinc powder are micro-
Dirt is discharged.
For example, entrance negative pressure section 2 can be configured with the both ends open structure of penetrating via, its one end open butt joint enters
The first entrance 32 of mouth protective gas filling section 3.Preferably, its circumferentially arranged some bleeding point in middle part, each bleeding point passes through
Pipeline connects negative pressure source.
Preferably, the entrance side of outlet protective gas filling section 7 is additionally provided with output insulation section 6, its outlet side also sets up
There is outlet negative pressure section 8, can be symmetrical arranged with pre- thermal center 4 and entrance negative pressure section 2.
Preferably, entrance negative pressure section 2 and outlet negative pressure section 8 have been also respectively connected with access road 1 and exit passageway 9, can be with
It is further ensured that the stability of gas shield atmosphere.
In a preferred embodiment of the present invention, for the ease of keeping the atmosphere in zincizing space S, workpiece entrance 53
Thin-and-long is set to workpiece outlet 54, accordingly, pre- thermal center 4, the filling of ingress protection gas docked successively with the two respectively
Section 3, entrance negative pressure section 2, and output insulation section 6, outlet protective gas filling section 7, outlet negative pressure section 8, the shape of both ends open
Shape is same.
More preferably, workpiece entrance 53 and workpiece outlet 54 is additionally provided with dust-break curtain, is escaped with reducing micronic dust.
In a preferred embodiment of the present invention, in order to ensure security, it is to avoid dust explosion, open zincizing room occur
Oxygen concentration detection meter is provided with 5.The mode and flow of protective gas are passed through in order to adjust as needed, it is ensured that zincizing is empty
Between oxygen concentration in S less than blast threshold.
In any of the above-described embodiment, the gas shield atmosphere of following any predetermined concentrations is could be arranged to：
1st, the inert gas of 90% volume, balance of air.
2nd, the inert gas of 93% volume, balance of air.
3rd, the inert gas of 98% volume, balance of air.
4th, the inert gas of 100% volume.
5th, the nitrogen of 90% volume, balance of oxygen.
6th, the nitrogen of 93% volume, balance of oxygen.
7th, the nitrogen of 97% volume, balance of oxygen.
8th, the nitrogen of 99% volume, balance of oxygen.
9th, the nitrogen of 100% volume.
10th, the inert gas of 20% volume, the nitrogen of 70% volume, balance of oxygen.
11st, the inert gas of 36% volume, the nitrogen of 56% volume, balance of oxygen.
12nd, the inert gas of 55% volume, the nitrogen of 36% volume, balance of oxygen.
13rd, the inert gas of 95% volume, balance of oxygen.
14th, the inert gas of 90% volume, balance of oxygen.
15th, the inert gas of 93% volume, balance of oxygen.
Wherein, when atmosphere is protected for dynamic gas, inert gas/nitrogen content is not less than 90%, preferably, 90%
Between~93%, oxygen content is no more than 10%, preferably, being no more than 7%.
Referring to Fig. 5, further, for the ease of continuous prodution, zinc powder sprinkler 52 is additionally provided with, zinc powder (both may be used
To be pure zinc powder, or be mixed with the zinc powder mixture of penetration-assisting agent) it is sprayed to surface of workpiece continuous uniform.
Wherein, zinc powder bringing device is arranged on zincizing outdoor, and jet exit is extended in zincizing room.Can for example pass through
Side wall, roof and/or bottom wall are stretched into zincizing room.Preferably, being located at top.
Wherein, zinc powder bringing device includes hopper, rotary sprinkler.
The hopper of zinc powder bringing device can be welding structure, and profile is in funnel-form, is set up in by welding shape steel bracket
Zincizing outdoor top surface, funnel lower ending opening is connected with rotary sprinkler, and zincizing chamber interior is stretched into rotary sprinkler lower end,
Thus rotary sprinkler uniformly sprays zinc powder to surface of workpiece during work.
Wherein, the jet exit of zinc powder bringing device is preferably several.Preferably, multiple jets are uniformly distributed in zincizing
Space S top.
Wherein, multiple jet exits can correspond to one or more rotary sprinklers.
Wherein, multiple rotary sprinklers can correspond to one or more hoppers.
Further, in order to improve zincizing efficiency, mechanical auxiliary can also be set and oozes device, for workpiece surface applying
Grain, shock is applied with the workpiece surface of zinc powder, and zincizing efficiency is improved using the auxiliary of mechanical energy.
Wherein, mechanical auxiliary oozes device can use impeller head 51.
Wherein, impeller head 51 may be mounted at zincizing outdoor, and impeller head 51 jettisoning outlet and the room of zincizing room
Wall is communicated.
Wherein, impeller head 51 can be one or more.When using multiple, preferably adjacent impeller head 51 is in staggeredly cloth
Put.Generally, the horizontal direction interval between the adjacent impeller head 51 of homonymy is not less than 250mm.
Preferably, the interlaced arrangement of impeller head 51 of opposite side.
Wherein, outlet of jettisoninging can be located at side wall, roof and/or the bottom wall of zincizing room.
Wherein, impeller head 51 can mechanically enter ball impeller head 51 using frequency control double-arc spline.
Wherein, the feeding mouth of impeller head 51 is connected with hopper, and hopper is located at zincizing room top outer, by a conveying pipeline
To the feeding mouth feed of impeller head 51.
Preferably, the separating and reclaiming device of separation and recovery zinc powder and particle can also be set.
Separating and reclaiming device can be provided with：
Vibratory sieve, for the zinc powder from zincizing space S and particle to be separated；
Zinc powder recovering mechanism, for the zinc powder after separation to be supplied into zinc powder sprinkler 52；With particle recovering mechanism, it is used for
Particle after separation is supplied to impeller head 51.
Whereby, zinc powder and particle can be carried out recycling, it is to avoid waste, the zinc powder and particle that will can also be reclaimed
Reuse, reduce material consumption, it is cost-effective.
Wherein, the feeding mouth of vibratory sieve can be located at the bottom (setting discharging opening in the bottom of zincizing room) of zincizing room, connect
The mixture of zinc powder and particle is received, the zinc powder of the feeding mouth correspondence vibratory sieve of zinc powder recovering mechanism is exported, zinc powder recovering mechanism
The feeding mouth of discharging opening correspondence zinc powder sprinkler 52, feeding mouth and the discharging opening of zinc powder recovering mechanism pass through heatproof zinc powder elevator
Structure is connected.
Further, heatproof zinc powder hoisting mechanism is set through zincizing room, so that the zinc powder insulation reclaimed, energy-saving and emission-reduction.
Further, the particle outlet of the feeding mouth correspondence vibratory sieve of particle recovering mechanism, particle recovering mechanism goes out
The feeding mouth of material mouth correspondence impeller head 51, the feeding mouth and discharging opening of particle recovering mechanism are by the heatproof particle through zincizing room
Hoisting mechanism is connected, so that the particle heat-insulating for reclaiming, energy-saving and emission-reduction.
Wherein, can be delivered to the particle of recovery in the hopper of the feeding mouth of impeller head 51 by particle recovering mechanism.
By zinc powder and the separation and recovery of particle, can not only economize on resources, additionally aid and realize continuous industrial production.
Fig. 6 is participated in, the present invention also provides the zincizing technique under a kind of non-vacuum environment, and it mainly comprises the following steps：
S1, one gas shield atmosphere of formation；
S3, zincizing treatment is carried out under gas shield atmosphere.
Referring to Fig. 7, the zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein, step S1 includes as follows
Step：
S11, in a zincizing space protective gas is input into, until protective gas therein reaches predetermined pressure；
S12, closing zincizing space, form closed gas shield atmosphere.
Referring to Fig. 8, the zincizing technique under the non-vacuum environment of one embodiment of the invention, wherein, step S1 includes as follows
Step：
S11 ＇, in an open zincizing space protective gas is input into, until emptying air therein, to being filled with
Protective gas；
S12 ＇, the lasting input for keeping protective gas, form dynamic gas shield atmosphere.
Preferably, in step S11 ＇, oxygen content is less than predetermined value, to avoid powder explosion.
Preferably, in step S11 ＇, including protective gas is passed through by the medium position in zincizing space, by zincizing space
Air is discharged, to form gas shield atmosphere.
Preferably, in step S11 ＇, including workpiece entrance by zincizing space and/or workpiece outlet port are passed through protection gas
Body, by the air discharge in zincizing space, to form gas shield atmosphere.
Preferably, in step S11 ＇, unnecessary protective gas is by workpiece entrance and/or workpiece outlet row in zincizing space
Go out, to form dynamic gas shield atmosphere.
Wherein, in step S3, to continuous input metal parts in the dynamic gas shield atmosphere formed in step S12 ＇,
Make it that zincizing reaction is carried out under gas shield atmosphere.Whereby, it is possible to achieve continuous industrial is produced, efficiency is significantly improved.
Preferably, in step S3, zinc powder is sprayed into surface of workpiece, in order to realize continuous zincizing, and make workpiece
Zinized surface is uniform.
Preferably, in step S3, the workpiece surface of zinc powder is also applied with including particles hit of jettisoninging, to improve zincizing effect
Rate.
Wherein, step S2 is also included before step S3, gas shield atmosphere is heated to zincizing technological temperature.
Preferably, keeping gas shield atmosphere in technological temperature, persistently it is input into pending metal works and exports treatment
Metal works afterwards.Whereby, can a heating, cooling metal works, realize energy-saving and emission-reduction.
Wherein, the pre-heat treatment also is carried out to metal works before step S3, preferably, a heat part for the pre-heat treatment is come
Self-shield gas is by the heat taken out of in zincizing space.For example using the protective gas pair discharged by the workpiece entrance in zincizing space
Metal works are preheated.
Wherein, cooling treatment also is carried out to metal works after step S3, preferably, exporting row by the workpiece in zincizing space
The protective gas for going out is discharged together with metal works, common cooling.
In sum, because zinc penetration equipment of the invention can be formed by protective gas bringing device in zincizing space
The gas shield atmosphere of predetermined concentration, and zincizing treatment is carried out to metal works wherein, and this kind of zincizing technique is caused not only
It is confined to carry out zincizing treatment under enclosed environment, can also in non-hermetic environments carries out zincizing, you can with open
Zincizing treatment is carried out under environment, and because zincizing space can be open, it can continuously be input into gold by workpiece entrance
Metal work-pieces, after treatment, be able to can be carried out continuously by the continuous output of workpiece outlet, i.e. zincizing treatment again, can realize zincizing
Continuous industrial production, production efficiency can be significantly improved.Simultaneously as zincizing space is without repeatedly during continuous prodution
Heating, cooling, only needs heating, cooling metal works, can significantly decrease energy resource consumption and reduce and discharge, and realizes energy-conservation
Emission reduction.
Claims (10)
1. the zincizing technique under a kind of non-vacuum environment, it is characterised in that it includes：
Zincizing treatment is carried out to metal works under the gas shield atmosphere of predetermined concentration.
2. the zincizing technique under non-vacuum environment as claimed in claim 1, it is characterised in that：
The gas shield atmosphere of predetermined concentration includes that oxygen concentration is no more than 7%~10% (volume)；And/or
The gas shield atmosphere of predetermined concentration is not less than 90%~93% (volume) including protective gas concentration.
3. the zincizing technique under non-vacuum environment as claimed in claim 1, it is characterised in that：
The gas shield atmosphere of predetermined concentration is formed in an open space.
4. the zincizing technique under non-vacuum environment as claimed in claim 3, it is characterised in that：
The gas shield atmosphere of predetermined concentration is that the protective gas by dynamically flowing is formed.
5. the zincizing technique under non-vacuum environment as claimed in claim 4, it is characterised in that：
Dynamic flowing includes flowing in the first direction, flows in a second direction and/or flowed along third direction, wherein, first party
It is rectilinear direction or non-rectilinear direction to, second direction and/or third direction.
6. the zinc penetration equipment under a kind of non-vacuum environment, it is characterised in that it includes：
Open zincizing room, it has zincizing space and the open workpiece entrance and open workpiece that are connected with zincizing space
Outlet；
Protective gas bringing device, for protective gas is filled in zincizing space, to form gas shield atmosphere wherein.
7. the zinc penetration equipment under non-vacuum environment as claimed in claim 6, it is characterised in that：Protective gas bringing device includes
Ingress protection gas filling section, for from workpiece entrance to filling protective gas in zincizing space.
8. the zinc penetration equipment under non-vacuum environment as claimed in claim 6, it is characterised in that：Protective gas bringing device includes
Outlet protective gas filling section, protective gas is filled for being exported from workpiece in zincizing space.
9. the zinc penetration equipment under non-vacuum environment as claimed in claim 6, it is characterised in that：Protective gas bringing device includes
Middle part protective gas filling part, between workpiece entrance and workpiece outlet to filling protective gas in zincizing space.
10. the zinc penetration equipment under non-vacuum environment as claimed in claim 6, it is characterised in that：
Oxygen concentration detection meter and pressure detecting meter are provided with open zincizing room.
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| CN106676466B (en) | 2019-08-13 |
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