CN103111736B - Alloyed powder moistureproof conveying device for glass mold plasma spray welding - Google Patents
Alloyed powder moistureproof conveying device for glass mold plasma spray welding Download PDFInfo
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- CN103111736B CN103111736B CN201310033537.3A CN201310033537A CN103111736B CN 103111736 B CN103111736 B CN 103111736B CN 201310033537 A CN201310033537 A CN 201310033537A CN 103111736 B CN103111736 B CN 103111736B
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Abstract
The invention provides an alloyed powder moistureproof conveying device for glass mold plasma spray welding and belongs to the technical field of alloyed powder conveying devices. The alloyed powder moistureproof conveying device comprises a machine frame, a sliding table, a sliding table drive mechanism, a bracket, an alloyed powder conveying mechanism, a powder hopper and an alloyed powder heating mechanism. A U-shaped cavity is formed in the machine frame in the height direction, and end faces on two sides of a cavity opening of the U-shaped cavity are respectively provided with a guide rail. One end of the sliding table is matched with the guide rail in a sliding mode, and the other end of the sliding table forms a horizontal suspension arm end and is fixed with a welding gun support. The sliding table drive mechanism is arranged in the U-shaped cavity and connected with the sliding table. The bracket is fixed on the sliding table. The alloyed powder conveying mechanism is arranged on the bracket. The powder hopper is connected with the alloyed powder conveying mechanism. The alloyed powder heating mechanism is arranged on the alloyed powder conveying mechanism. The alloyed powder moistureproof conveying device has the advantages that the plasma welding gun is used for carrying out bead weld on a glass mold and therefore alloyed powder can be in a dry state and bead weld quality can be guaranteed; and due to the fact that the whole structure is simple, manufacturing is convenient, and use and maintenance are easy.
Description
Technical field
The invention belongs to alloy powder conveying device technical field, be specifically related to the moistureproof conveying device of alloyed powder that a kind of glass mold plasma spray is used.
Background technology
Above mentioned alloyed powder is main but be not definitely limited to finger nickel-base alloy powder.Because nickel-base alloy has the anticorrosive of excellence, the performances such as anti-oxidant and thermal fatigue resistance, therefore at inner chamber (industry custom inner chamber is called die cavity) the surfacing nickel-base alloy powder of glass mold, can avoid die wear significant prolongation service life, in can the glass die cavity that be mother metal matrix by the Chinese invention patent application publication number CN101549946A(silicon copper that is not limited to exemplify to this, fill the method for nickel-base alloy), the method of CN101913019A(overlaying glass die by plasma) and CN102248358A(cast-iron alloy be the method for nickel-base alloy of filling in the glass die cavity of mother metal matrix) confirmation.
Aforesaid to filling in glass die cavity or claiming built-up welding nickel-base alloy conventionally to implement built-up welding by plasma spray welding gun.As is known in the industry, because of the impact of the surrounding environment phenomenon of easily making moist, there is caking and to powder feeding pipes obstruction, finally affect the surfacing quality to die cavity in alloyed powder after making moist, stop up when serious built-up welding cannot be carried out.Solution is that powder bucket is introduced to preheating in electric furnace or similar heater in advance at present, to reach the dry object of tide.The method bothers on the one hand, increases on the other hand workman's labour intensity, then affects on the one hand the operating efficiency of plasma spray welding gun.Yet, if " for powder processing and the method for welding equipment " that adopt Chinese patent CN101687271B to recommend, not only complex structure, and operation and maintenance trouble.
In view of above-mentioned prior art, the applicant has done positive and useful design, has finally formed technical scheme described below, and is taking strict secrecy provision Xia the applicant plant area to make simulated test, and it is effective that result proves.
Summary of the invention
Task of the present invention be to provide a kind of contribute to plasma spray welding gun alloy powder is abstemiously provided and use for plasma spray welding gun to glass mold implement built-up welding, be conducive to that alloy powder is used in good drying regime and avoid because making moist, stopping up powder feeding pipes and be of value to embody simple in structure use facilitate fabrication and installation and the moistureproof conveying device of alloyed powder used of glass mold plasma spray.
Task of the present invention completes like this, the moistureproof conveying device of alloyed powder that a kind of glass mold plasma spray is used, comprise a frame, this frame forms and has a U-shaped chamber in its short transverse, and is respectively fixed with a guide rail on the end face of the accent both sides in this U-shaped chamber; One slide unit, one end of this slide unit is slidably matched with described guide rail up or down, and the other end is configured to horizontal boom end and is fixed with a welding gun support; One is following for ordering about described slide unit the slide unit driving mechanism that described guide rail moves up and down, and this slide unit driving mechanism is arranged in described U-shaped chamber, and is in transmission connection with slide unit; One bracket, this bracket is fixed on described slide unit; One alloyed powder conveying mechanism, this alloyed powder conveying mechanism is arranged on described bracket; One for providing the powder bucket of alloyed powder to described alloyed powder conveying mechanism, this powder bucket is connected with alloyed powder conveying mechanism; One for making alloyed powder be held in the alloyed powder heating arrangements of drying regime, and this alloyed powder heating arrangements is arranged on described alloyed powder conveying mechanism.
In a specific embodiment of the present invention, described slide unit driving mechanism comprises motor, reduction box and screw rod, motor coordinates with reduction box transmission, and reduction box is fixed on the bottom in the U-shaped chamber of described frame together with motor, the upper end of screw rod is bearing on the chamber wall in U-shaped chamber rotationally, lower end and reduction box are in transmission connection, and in described one end of described slide unit, are fixed with a bolt and nut, and this bolt and nut coordinates with described screw drive.
In another specific embodiment of the present invention, described alloyed powder conveying mechanism comprises powder feeding motor, powder feeding reduction box, powder feeding screw and powder feeding case, powder feeding motor coordinates with the transmission of powder feeding reduction box, and together with powder feeding motor, be fixed on the outer wall of powder feeding case by powder feeding reduction box, the two ends of powder feeding screw are bearing on the corresponding tank wall of powder feeding case rotationally, middle part is positioned at the powder feeding case case chamber of powder feeding case, and the end, wherein one end of this powder feeding screw is connected with the reduction gearbox output shaft of powder feeding reduction box outside being stretched over powder feeding case case chamber, powder feeding case is arranged on the top of described bracket, and on this powder feeding case, be connected with one for the alloyed powder in the described powder feeding case case chamber of powder feeding case being flowed to the powder feeding pipe of plasma spray welding gun to the built-up welding of glass mold heap welding position, described powder bucket is arranged on the top of described powder feeding case and communicates with described powder feeding case case chamber, described alloyed powder heating arrangements is arranged on the outer wall of a side of powder feeding case.
In another specific embodiment of the present invention, described powder feeding motor is frequency control motor.
In another specific embodiment of the present invention, on described powder bucket and be arranged in following side and be provided with one for measuring the alloyed powder temperature signal collection device of temperature of the alloyed powder of powder bucket.
Of the present invention, also have in a specific embodiment, described temperature signal collection device is infrared thermometry probe.
More of the present invention and in a specific embodiment, on the outer wall of the described side of described powder feeding case, be provided with heat-conducting silicone grease, described alloyed powder heating arrangements is fixed in the position corresponding to heat-conducting silicone grease and powder feeding case.
In of the present invention and then a specific embodiment, described alloyed powder heating arrangements comprises coil holder, coil, iron core and the heat sink of being furnished with capping and power supply wiring pin, coil is arranged in the coil holder chamber of coil holder, and be electrically connected to described power supply wiring pin, iron core is placed in coil, one end of this iron core is corresponding with described capping, the other end is corresponding with heat sink, heat sink and coil holder are fixed, and this heat sink is fixed in the position corresponding to heat-conducting silicone grease and described powder feeding case.
Of the present invention again more and in a specific embodiment, in described one end of described slide unit, be connected with one end of a pull rope, the other end of pull rope is introduced in described U-shaped chamber and is connected with a balancing weight, the middle part of pull rope is nested with on the first pull rope transition wheel and the second pull rope transition wheel, and the first pull rope transition wheel and the second pull rope transition wheel are arranged on the wall top, chamber in U-shaped chamber rotationally.
In again of the present invention and then a specific embodiment, first, second described traction transition wheel is sprocket wheel, and described pull rope is chain.
Technical scheme provided by the invention abstemiously flows to plasma spray welding gun by alloyed powder conveying mechanism by alloyed powder, to glass mold is implemented to built-up welding by plasma spray welding gun; Owing to being heated by the involutory bronze of alloyed powder heating arrangements, therefore can make alloyed powder use guarantee surfacing quality in drying regime; Because overall structure is simple, therefore not only easily manufactured, and also operation and maintenance is easy.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is schematic diagram and the application examples schematic diagram of the present invention that the slide unit shown in Fig. 1 matches with slide unit driving mechanism.
The specific embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, applicant elaborates the mode with embodiment below, but to the description of embodiment, be not all the restriction to the present invention program, any according to the present invention design, done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Please be referring to Fig. 1 and Fig. 2, provided a frame 1, this frame 1 is placed on the base station in plasma surfacing place under use state, and this frame 1 has a U-shaped chamber 11 towards a side formation of the slide unit 2 that is about to describe below in a side of short transverse, particularly, frame 1 is openings towards a side of slide unit 2, does not seal.On the end face of the both sides in U-shaped chamber 11, in U-shaped chamber 11, on the accent surface of slide unit 2, be respectively fixed with a guide rail 111, that is to say, guide rail 111 has a pair of.
One end of aforesaid slide unit 2 forms and has guide rail sliding chute 24 towards frame 1 one end and in the position corresponding to aforementioned guide rail 111, guide rail sliding chute 24 is slidably matched with guide rail 111, and the other end of slide unit 2 is configured to horizontal boom end and on the outer wall of this other end, is fixed with a welding gun support 21.By Fig. 2, shown, in order to ensure the stationarity that slide unit 2 moves up and down and to embody energy-conservation, therefore in one end of slide unit 2, towards the one end in U-shaped chamber 11, be fixed with one end of a pull rope 23, the other end of pull rope 23 is introduced in U-shaped chamber 11 and is connected with a balancing weight 231, and the middle part of pull rope 23 is nested with on the first pull rope transition wheel 232 and the second pull rope transition wheel 233, first, second pull rope transition wheel 232,233 is all arranged on the wall top, chamber in U-shaped chamber 11 rotationally.As shown in Figure 2, the first pull rope transition wheel 232 is arranged on First Transition wheel shaft 2321, the second pull rope transition wheel 233 is arranged on the second transition wheel shaft 2331, and first, second transition wheel shaft 2321,2331 keeps in the horizontal direction each other parallel and fixes with the wall top, chamber in U-shaped chamber 11.
In the present embodiment, aforesaid first, second pull rope transition wheel 2321,2331 all adopts sprocket wheel, and pull rope adopts chain.Yet, if first, second pull rope transition wheel 232,233 is all adopted to roller (also can claim slide guide wheel), and correspondingly pull rope is changed into common conductor rope, should be considered as so equivalence and replace and still belong to technology contents category disclosed by the invention.
Provided one and followed for ordering about aforesaid slide unit 2 the slide unit driving mechanism 2 that guide rail 111 moves up and down, the structure preferred but not that be limited to of this slide unit driving mechanism 2 is as follows: comprise motor 31, reduction box 32 and screw rod 33, motor 31 is for having the motor of rotating function, coordinate with reduction box 32 transmissions, and together with motor 31, be fixed on the bottom in U-shaped chamber 11 by reduction box 32.The upper end of screw rod 33 (take shown position as example) is bearing in (screw bolt seat 331 is fixed with the chamber wall in U-shaped chamber 11) on the chamber wall in U-shaped chamber 11 rotationally by screw bolt seat 331, the lower end of screw rod 33 and reduction box 32 are in transmission connection.As shown in Figure 2, in one end of aforesaid slide unit 2 and be fixed with a bolt and nut 22 in the position corresponding to screw rod 33, this bolt and nut 22 coordinates with screw rod 33 transmissions.
When motor 31 work (working clockwise or counterclockwise), drive reduction box 32 work, by reduction box 32, drive screw rod 33 rotations, thereby drive slide unit 2 upstream or downstream by the bolt and nut 22 matching with screw rod 33.
The bottom of the bracket 4 providing is fixed on aforesaid slide unit 2 with bolt 41, and the top of bracket 4 formation has a platform bracket 42, is equipped with an alloyed powder conveying mechanism 5 on this platform bracket 42.
Above mentioned alloyed powder conveying mechanism 5 preferably but not the structure being definitely limited to is as follows: comprise powder feeding motor 51, powder feeding reduction box 52, powder feeding screw 53 and powder feeding case 54, powder feeding motor 51 is transformer frequency modulation speed motor, this powder feeding motor 51 coordinates with 52 transmissions of powder feeding reduction box, and be fixed on deceleration block 522 by powder feeding reduction box 52, deceleration block 522 is bearing on platform bracket 42, and fix with the outer wall of powder feeding case 54 simultaneously, the two ends of powder feeding screw 53 are bearing on correspondence (face-to-face) tank wall of powder feeding case 54 rotationally, middle part is positioned at the powder feeding case case chamber of powder feeding case 54, and wherein one end of this powder feeding screw 53 is in transmission connection towards one end of powder feeding reduction box 52 and the reduction gearbox output shaft 521 of powder feeding reduction box 52, box for feeding odd 54 is arranged on the top of bracket 4, be arranged on platform bracket 42.Shown in figure, in the bottom of powder feeding case 54, connect one for the alloyed powder in the powder feeding case case chamber of powder feeding case 54 (the present embodiment is nickel-base alloy powder) is flowed to the powder feeding pipe 541 that is arranged at the plasma spray welding gun 211 on aforementioned welding gun support 21, particularly, one end of powder feeding pipe 541 is connected with powder feeding case 54 and communicates with powder feeding case case chamber, and the other end is connected with plasma spray welding gun 211, to the alloyed powder that comes from powder feeding pipe 541 is implemented to built-up welding to the joint close face 81 of the glass mold 8 shown in Fig. 2 and die cavity 82 by plasma spray welding gun 211.
As shown in Figure 1, on the outer wall of a side of aforementioned powder feeding case 54, be provided with heat-conducting silicone grease 542, the alloyed powder heating arrangements 7 that will describe is below fixing at the position corresponding to this heat-conducting silicone grease 542 and powder feeding case 54.At the top of powder feeding case 54, be fixed with one for powder feeding case case chamber being carried to the powder bucket 6 of alloyed powder, the top of this powder bucket 6 is equipped with powder bucket cover 62, and when will opening powder bucket cover 62 to powder bucket 6 when dropping into alloyed powder, vice versa.On powder bucket 6 and the following side that is positioned at powder bucket 6 be provided with an alloyed powder temperature signal collection device 61 being connected with admission controller electrical control, this alloyed powder temperature signal collection device 61 is insinuated in hopper 6.In the present embodiment, alloyed powder temperature signal collection device 61, for infrared thermometry probe, feeds back to electric controller by it by the alloyed powder temperature signal measuring.
Under the work of powder feeding motor 51, by powder feeding motor 51, drive reduction box 52, reduction gearbox output shaft 521 by reduction box 52 drives powder feeding screw 53, the alloyed powder by powder feeding screw 53, powder bucket 6 being fed in the powder feeding case case chamber of powder feeding case 54 drives in powder feeding pipe 541, until cause plasma spray welding gun 211 by powder feeding case 541.The size of powder sending quantity is controlled by the rotating speed speed of powder feeding motor 51.
Above mentioned alloyed powder heating arrangements 7 comprises coil holder 71, coil 72, iron core 73 and heat sink 74, and coil holder 71 is furnished with a capping 711 and one group of power supply wiring pin 712, and power supply wiring pin 712 is connected with external power cord 7121.Screw type coil 72 is arranged in the coil holder chamber of coil holder 71, and be electrically connected to aforesaid power supply wiring pin 712, iron core 73 is placed in the coil cavity of coil 72, one end of this iron core 73 is corresponding with capping 711, the other end is corresponding with heat sink 74, and heat sink 74 is fixing with coil holder 71 by the first screw 742, and this heat sink 74 also can claim heat-conducting silicone grease layer corresponding to aforesaid heat-conducting silicone grease 542() position with the second screw 743 and aforesaid powder feeding case 54, fix.In the present embodiment, heat sink 74 adopts aluminium sheet, and offers core ends probe hole 741 at the central part of heat sink 74, and the described other end of aforesaid iron core 73 probes in this core ends probe hole 741.In the present embodiment, to be preferred, but not limited to and to use the trade mark of being produced by the Shi Ming of Chinese Guangdong province Shenzhen electric heating appliance Co., Ltd be RAM-II type electromagnetic heater to alloyed powder heating arrangements 7.
When coil 72 energising, iron core 73, by adhesive, forms the magnetic loop of a sealing.When inductance value is pressed maximum rating design, it is normal that heating belongs to, but iron core 73 adhesive smoothly when coil 72 energising, the inductance value of coil 72 reduces; Impedance reduces, so cause the electric current of coil 72 to increase, even can not make iron core 73 by adhesive completely, and while making coil 72 energising, in impedance compared with normal state on the low side, coil 72 generates heat.The present invention adopts the fixed design of iron core 73, particularly, one end bearing of iron core 73 is positioned in capping 711, and other end supporting is positioned in the core ends probe hole 741 of heat sink 74, and iron core 73 can not be by adhesive, to make coil 72 heatings, coil 72 generates heat and makes iron core 73 heatings, by iron core 73, transfers heat to heat sink 74, by the alloyed powder in 74 pairs of powder feeding casees 54 of heat sink, is heated, so that alloyed powder in drying regime, avoids alloyed powder to affect surfacing quality because making moist.Utilize the temperature controller that alloyed powder temperature signal collection device 61 connects to limit the supply voltage that heating-up temperature bound is carried out break-make coil 72, to reach the long-term stable operation of heating mechanism.
Applicant sketches operation principle of the present invention in conjunction with Fig. 1 and Fig. 2, first, by operator, the glass mold 8 that awaits hardfacing alloy powder (nickel-base alloy powder) is placed on die frame 9, then by electric controller being operated to slide unit driving mechanism 3 work that make, make slide unit 2 descending, by the descending of slide unit 2, driven the plasma spray welding gun 211 being arranged on welding gun support 21 descending, then make plasma spray welding gun 211 work, alloyed powder conveying mechanism 5 work simultaneously, by powder feeding pipe 541, alloyed powder is supplied with to joint close face 81 and die cavity 82 built-up welding of 211 pairs of glass molds 8 of plasma spray welding gun.After to glass mold, 8 built-up welding finish, motor 31 reverse operations of slide unit driving mechanism 3, make slide unit 2 up, so that the glass mold 8 that operator is welded with nickel-base alloy by heap gets from die frame 9, and the glass mold 8 that next is awaited to built-up welding is arranged on die frame 9.When wanting involutory bronze to go tide to be heat drying, by the operation to electric controller, make coil 72 energisings, by the superincumbent explanation of applicant, by 74 pairs of powder feeding casees of heat sink 54, heated.
In sum, technical scheme provided by the invention has made up the shortcoming in prior art, has completed invention task, has embodied the technique effect described in the superincumbent technique effect of applicant hurdle.Especially: under applicant has taked secrecy provision, test, result obtains beyond thought effect.
Claims (10)
1. the moistureproof conveying device of alloyed powder that a glass mold plasma spray is used, it is characterized in that comprising a frame (1), this frame (1) forms and has a U-shaped chamber (11) in its short transverse, and is respectively fixed with a guide rail (111) on the end face of the accent both sides in this U-shaped chamber (11); One slide unit (2), one end of this slide unit (2) is slidably matched with described guide rail (111) up or down, and the other end is configured to horizontal boom end and is fixed with a welding gun support (21); One is following for ordering about described slide unit (2) the slide unit driving mechanism (3) that described guide rail (111) moves up and down, and this slide unit driving mechanism (3) is arranged in described U-shaped chamber (11), and is in transmission connection with slide unit (2); One bracket (4), this bracket (4) is fixed on described slide unit (2); One alloyed powder conveying mechanism (5), this alloyed powder conveying mechanism (5) is arranged on described bracket (4); One for providing the powder bucket (6) of alloyed powder to described alloyed powder conveying mechanism (5), this powder bucket (6) is connected with alloyed powder conveying mechanism (5); One for making alloyed powder be held in the alloyed powder heating arrangements (7) of drying regime, and this alloyed powder heating arrangements (7) is arranged on described alloyed powder conveying mechanism (5).
2. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 1 is used, it is characterized in that described slide unit driving mechanism (3) comprises motor (31), reduction box (32) and screw rod (33), motor (31) coordinates with reduction box (32) transmission, and reduction box (32) is fixed on the bottom in the U-shaped chamber (11) of described frame (1) together with motor (31), the upper end of screw rod (33) is bearing on the chamber wall in U-shaped chamber (11) rotationally, lower end and reduction box (32) are in transmission connection, in described one end of described slide unit (2), be fixed with a bolt and nut (22), this bolt and nut (22) coordinates with described screw rod (33) transmission.
3. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 1 is used, it is characterized in that described alloyed powder conveying mechanism (5) comprises powder feeding motor (51), powder feeding reduction box (52), powder feeding screw (53) and powder feeding case (54), powder feeding motor (51) coordinates with powder feeding reduction box (52) transmission, and be fixed on the outer wall of powder feeding case (54) together with powder feeding motor (51) by powder feeding reduction box (52), the two ends of powder feeding screw (53) are bearing on the corresponding tank wall of powder feeding case (54) rotationally, middle part is positioned at the powder feeding case case chamber of powder feeding case (54), and the end, wherein one end of this powder feeding screw (53) is connected with the reduction gearbox output shaft (521) of powder feeding reduction box (52) outside being stretched over powder feeding case case chamber, powder feeding case (54) is arranged on the top of described bracket (4), and on this powder feeding case (54), be connected with one for the alloyed powder in the described powder feeding case case chamber of powder feeding case (54) being flowed to the powder feeding pipe (541) of plasma spray welding gun to the built-up welding of glass mold heap welding position, described powder bucket (6) is arranged on the top of described powder feeding case (54) and communicates with described powder feeding case case chamber, described alloyed powder heating arrangements (7) is arranged on the outer wall of a side of powder feeding case (54).
4. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 3 is used, is characterized in that described powder feeding motor (51) is frequency control motor.
5. the moistureproof conveying device of the alloyed powder used according to the glass mold plasma spray described in claim 1 or 3, is characterized in that upper at described powder bucket (6) and is arranged in following side and is provided with one for measuring the alloyed powder temperature signal collection device (61) of temperature of the alloyed powder of powder bucket (6).
6. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 5 is used, is characterized in that described temperature signal collection device (61) is for infrared thermometry probe.
7. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 3 is used, it is characterized in that being provided with heat-conducting silicone grease (542) on the outer wall of the described side of described powder feeding case (54), described alloyed powder heating arrangements (7) is fixing in the position corresponding to heat-conducting silicone grease (542) and powder feeding case (54).
8. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 7 is used, it is characterized in that described alloyed powder heating arrangements (7) comprises the coil holder (71) of be furnished with capping (711) and power supply wiring pin (712), coil (72), iron core (73) and heat sink (74), coil (72) is arranged in the coil holder chamber of coil holder (71), and be electrically connected to described power supply wiring pin (712), iron core (73) is placed in coil (72), one end of this iron core (73) is corresponding with described capping (711), the other end is corresponding with heat sink (74), heat sink (74) is fixing with coil holder (71), and this heat sink (74) is fixing in the position corresponding to heat-conducting silicone grease (542) and described powder feeding case (54).
9. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 1 is used, it is characterized in that the described one end at described slide unit (2) is connected with one end of a pull rope (23), the other end of pull rope (23) is introduced in described U-shaped chamber (11) and is connected with a balancing weight (231), the middle part of pull rope (23) is nested with at the first pull rope transition wheel (232) and the second pull rope transition wheel (233) upper, and the first pull rope transition wheel (232) and the second pull rope transition wheel (233) are arranged on the wall top, chamber in U-shaped chamber (11) rotationally.
10. the moistureproof conveying device of alloyed powder that glass mold plasma spray according to claim 9 is used, is characterized in that first, second described traction transition wheel (232,233) is sprocket wheel, and described pull rope (23) is chain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310033537.3A CN103111736B (en) | 2013-01-29 | 2013-01-29 | Alloyed powder moistureproof conveying device for glass mold plasma spray welding |
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| CN201310033537.3A CN103111736B (en) | 2013-01-29 | 2013-01-29 | Alloyed powder moistureproof conveying device for glass mold plasma spray welding |
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| CN103111736B true CN103111736B (en) | 2014-12-03 |
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| CN103447711B (en) * | 2013-08-28 | 2016-06-01 | 黑龙江八一农垦大学 | Agricultural machinery and implement soil-engaging component plasma build-up wear-resistant powdered alloy and overlaying method |
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