CN115106483A - Method for processing 304 stainless steel sewage pump pipeline - Google Patents
Method for processing 304 stainless steel sewage pump pipeline Download PDFInfo
- Publication number
- CN115106483A CN115106483A CN202210921674.XA CN202210921674A CN115106483A CN 115106483 A CN115106483 A CN 115106483A CN 202210921674 A CN202210921674 A CN 202210921674A CN 115106483 A CN115106483 A CN 115106483A
- Authority
- CN
- China
- Prior art keywords
- hole
- processing
- vertical
- blank
- lost foam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/02—Compacting by pressing devices only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C17/00—Moulding machines characterised by the mechanism for separating the pattern from the mould or for turning over the flask or the pattern plate
- B22C17/02—Moulding machines with pin lifting arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
- C23C8/38—Treatment of ferrous surfaces
Abstract
The invention discloses a processing method of a 304 stainless steel dredge pump pipeline, which comprises the following steps of processing a lost foam with the same shape as the dredge pump pipeline; processing two mold cores capable of filling the inner cavity of the lost foam by using a filler processing device; inserting the lost foam into the mounting box body, putting molding sand into the vertical round through hole from the top of the lost foam, compacting, and taking out the lost foam with the two mold cores from the mounting box body; horizontally placing the lost foam with the two mold cores into a casting device, and processing the part to be formed by using the casting device; processing the part to be formed by using a processing center to process a blank piece with the same shape as the pipeline of the sewage pump; carrying out sand blasting treatment on the inner hole of the blank; nitriding the inner hole of the blank after sand blasting; the sewage pump pipeline with a reliable structure can be processed by using the invention.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a method for machining a 304 stainless steel sewage pump pipeline.
Background
The method for processing the sewage pump pipeline adopts a lost foam to cast the ferrous metal sewage pump pipeline, and the ferrous metal sewage pump pipeline processed by the processing method has simple manufacture and low cost, but is easy to corrode in various sewage and dirt environments.
In order to prevent the sewage pump pipeline from being easily corroded in sewage and sewage environments, the 304 stainless steel sewage pump pipeline is generally adopted in the prior art to prolong the service life of the sewage pump pipeline. When the 304 stainless steel sewage pump pipeline is processed, the pipeline is cast by adopting lost foam casting, and when the transverse pipeline on the pipeline is cast by adopting lost foam casting, the inner core and the outer side of the cross arm are horizontally suspended, so that the transverse inner core and the outer side are easy to droop and fall off when the pipeline is cast by using 304 stainless steel liquid.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the preparation of the prior art sewage pump pipe.
Therefore, the invention aims to provide a method for processing a 304 stainless steel sewage pump pipeline, which can process the sewage pump pipeline with a reliable structure.
In order to solve the technical problems, the invention provides the following technical scheme: a method for processing a 304 stainless steel sewage pump pipeline comprises the following steps,
processing a lost foam with the same shape as the pipeline of the sewage pump, wherein the lost foam comprises a vertical mold body, a horizontal mold body is fixed at the side end of the vertical mold body, a vertical round through hole is formed in the vertical mold body, and a transverse round through hole communicated with the vertical round through hole is formed in the horizontal mold body;
processing two mold cores capable of respectively filling the vertical round through hole and the transverse round through hole by using a filler processing device;
inserting the lost foam into the mounting box body, vertically placing one mold core into the vertical round through hole from the top of the vertical mold body, horizontally placing the other mold core into one end, far away from the vertical mold body, of the transverse mold body, placing molding sand into the vertical round through hole from the top of the lost foam, and taking the lost foam with the two mold cores out of the mounting box body after compaction;
horizontally placing the lost foam with the two mold cores into a casting device, and processing the part to be formed by using the casting device;
processing the part to be formed by using a processing center to process a blank piece with the same shape as the pipeline of the sewage pump;
carrying out sand blasting treatment on the inner hole of the blank;
and nitriding the inner hole of the blank after sand blasting.
In order to realize the processing of the mold core, the filler processing device comprises a filling seat, a step through hole is formed in the filling seat, a first linear driver is arranged below the filling seat, a first piston rod capable of performing reciprocating linear movement in the height direction is connected onto the first linear driver, the upper end of the first piston rod extends into the step through hole, a step is arranged on the filling seat at the lower part of the step through hole, a top plate capable of sliding along the step through hole above the step is arranged on the upper side of the step, the top plate is connected with the first piston rod, a plurality of slidable metal rods are distributed on the top plate, a second linear driver is arranged above the filling seat, a second piston rod capable of performing reciprocating linear movement in the height direction is connected onto the second linear driver, and a pressing block is fixedly connected to one end, extending out of the second linear driver, of the second piston rod, the lower part of the pressing block can just extend into the step through hole, and the upper end of the metal rod is connected to the pressing block in a sliding mode.
In order to further realize the positioning of the height of the metal rod, a fixing block is fixedly connected to the lower side of the filling seat, a positioning plate is connected to the fixing block in a threaded mode, the lower side of the metal rod is in contact with the upper side of the positioning plate, and the first piston rod upwards penetrates through a through hole in the positioning plate.
In order to further realize the processing of the mold core of the lost foam, the step of processing the mold core by using the filler processing device is specifically,
the positioning plate is rotated, and when the positioning plate moves to a required height, the positioning plate stops rotating;
inserting a metal rod into an upper guide hole on the pressing block and a lower guide hole on the top plate in sequence and then contacting with the upper side of the positioning plate;
filling molding sand in the step through hole;
the second linear driver acts to enable the second piston rod to move downwards, and after the molding sand is compacted, the second linear driver acts reversely and resets, and the second linear driver stops acting;
and the first linear driver acts to enable the first piston rod to move upwards, and the top plate pushes the lost foam out of the step through hole to obtain the mold core.
As a further improvement of the invention, the casting device comprises a casting frame with an upward processing opening, a first cover plate is detachably connected to the upper side of the casting frame, a first air outlet hole, a casting hole and a second air outlet hole are formed in the first cover plate, and a second cover plate is detachably connected to one side of the casting frame in the front-back direction.
In order to further realize the processing of the sewage pump pipeline, the step of processing the part to be formed by using the casting device comprises the following steps of,
molding sand is put into the processing opening of the casting frame, and when the height of the molding sand reaches the required height, the lost foam is horizontally put into the casting frame;
placing a first steel wire mesh on the left side of the lost foam, and respectively placing a second steel wire mesh above and below the right side of the lost foam;
a cylindrical first connecting piece is placed at the top end of the left side of the vertical die body, the upper end of the first connecting piece just upwards penetrates through the first air outlet, a conical second connecting piece is placed at the top end of the right side of the vertical die body, the upper end of the second connecting piece just penetrates through the casting hole, a cylindrical third connecting piece is placed at the top end of the right side of the transverse die body, the upper end of the third connecting piece just upwards penetrates through the second air outlet, and the lower end of the third connecting piece penetrates through meshes on the second steel wire mesh above the third connecting piece;
continuously putting the molding sand into the casting frame until the casting frame is full of the molding sand, compacting the molding sand, covering a second cover plate, and fixedly connecting the second cover plate to the casting frame by using a fixing bolt;
taking out the first connecting piece, the second connecting piece and the third connecting piece;
one end of the first cover plate is suspended downwards, each casting frame is heated, and the lost foam melts and flows out of the first air outlet, the casting hole and the second air outlet;
put first apron place one end up, first apron is pulled down from the casting frame, and the circular conical bore that forms along second connecting piece department pours into 304 stainless steel liquid into, is full of the die cavity and cools off the back when 304 stainless steel liquid, loosens the fastening bolt on the second apron, takes off the second apron and pours, gets rid of molding sand, wire net and metal pole, obtains treating the formed part.
In order to further realize nitriding processing, a nitriding processing device is used for processing an inner hole of a blank, the blank comprises a vertical pipe, a first boss and a second boss are respectively fixed at the upper end and the lower end of the vertical pipe, and a transverse pipe is fixed at the side end of the vertical pipe; the nitriding processing device comprises a discharging assembly and a gas pumping and discharging and air inlet assembly, the upper end of the vertical pipe is sealed by a first boss upside fixedly connected with, the lower end of the vertical pipe is sealed by a second boss downside fixedly connected with by a second sealing assembly, one end of the horizontal pipe far away from the vertical pipe is connected with a third sealing assembly used for sealing the horizontal pipe, and the discharging assembly and the gas pumping and discharging and air inlet assembly can be respectively connected onto the second sealing assembly or the third sealing assembly.
In order to further realize nitridation, the discharge assembly comprises a main shaft, a first insulating sleeve is arranged on the outer side of the main shaft extending into the blank, a red copper sleeve is arranged on the outer side of the first insulating sleeve, a second insulating sleeve is arranged on the outer side of the red copper sleeve, a plurality of staggered thread through holes are arranged on the red copper sleeve, a plurality of connecting through holes corresponding to the thread through holes one to one are arranged on the second insulating sleeve, red copper electrodes are arranged in the connecting through holes, the air pumping and discharging assembly comprises a nitrogen tank and a vacuum pump which can be respectively communicated with an inner cavity of the blank, a four-way pipe is connected onto the sealing assembly and comprises a first connecting part fixedly connected onto a third sealing assembly, a second connecting part and a third connecting part are fixed on one side of the first connecting part far away from the third sealing assembly, and a fourth connecting part is connected at the joint of the second connecting part and the third connecting part, the end connection of second connecting portion has first valve, the end connection of third connecting portion has nitrogen gas holder, is connected with the second valve on the third connecting portion, the end connection of fourth connecting portion has the vacuum pump, is connected with the third valve on the fourth connecting portion.
In order to further facilitate the electrical connection of the cathode and the anode of the blank, the nitriding processing device further comprises a supporting platform, a first supporting sinking groove and a second supporting sinking groove are formed in one upward side of the supporting platform, the axis directions of the first supporting sinking groove and the second supporting sinking groove are mutually perpendicular, the vertical pipe is supported on the supporting platform through the first supporting sinking groove, the horizontal pipe is supported on the supporting platform through the second supporting sinking groove, a cathode power line is connected to the supporting platform, an elastic power contact element is arranged between the lower side of the red copper sleeve and a second insulating sealing plate of the second sealing assembly, a red copper bolt is connected to the power contact element in a threaded manner, a transverse through hole is formed in the second sealing assembly, an anode power line is arranged in the transverse through hole, and the red copper bolt is pressed on the anode power line.
In order to further realize the nitriding of the inner wall surface of the blank member, the nitriding process is carried out by using a nitriding process apparatus,
installing the main shaft on the second sealing assembly, and installing the air exhausting and air inlet assembly on the third sealing assembly;
controlling the third valve to be opened, and enabling the vacuum pump to work to vacuumize the inner cavity of the blank;
controlling the second valve to open, and introducing nitrogen into the inner cavity of the blank by the nitrogen storage tank;
the anode power line and the cathode power line are respectively connected with electricity, after current sequentially passes through the red copper bolt, the power contact element and the red copper sleeve from the anode power line, the red copper electrode generates glow discharge, nitrogen ions are flushed to the surface of the inner wall of the vertical tube, iron nitride is gradually adsorbed on the surface of the inner wall of the vertical tube, and after nitridation is finished, the power supply of the anode power line and the power supply of the cathode power line are cut off;
controlling the first valve to open and deflate to make the inner cavity of the blank consistent with the external air pressure;
the positions of the air suction and discharge assembly and the air suction and discharge assembly are changed, the first valve is controlled to be closed, and the actions are repeated to finish the nitridation of the surface of the inner wall of the transverse pipe;
controlling the first valve to open and deflate to make the inner cavity of the blank consistent with the external air pressure;
and (4) disassembling each sealing assembly, and taking out the nitrided blank to obtain the sewage pump pipeline.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a structural view of a filler processing apparatus according to the present invention.
Fig. 2 is a view from a-a in fig. 1.
Fig. 3 is a view from B-B in fig. 1.
Fig. 4 is a view from direction C-C in fig. 1.
Fig. 5 is a view from direction D-D in fig. 1.
Fig. 6 is a structural view of the core produced in the present invention.
Fig. 7 is an internal structural view of the mold core when filling the cavity of the lost foam.
Fig. 8 is a side view of the mold core as it fills the cavity of the lost foam.
Fig. 9 is a top view of the mold core as it fills the cavity of the lost foam.
FIG. 10 is a schematic view of the casting apparatus of the present invention before it is ready for casting.
Fig. 11 is a view from E-E in fig. 10.
Fig. 12 is a view from direction F-F in fig. 10.
Fig. 13 is a top view of the casting apparatus of the present invention.
Fig. 14 is a structural view of a to-be-formed member processed in the present invention.
FIG. 15 is a schematic diagram of a nitriding apparatus according to the present invention.
Fig. 16 is a structural view of a discharge element in the nitriding processing apparatus.
Fig. 17 is a structural view of the present invention for realizing anode discharge.
Fig. 18 is a view from direction G-G in fig. 15.
Fig. 19 is a view from H-H direction in fig. 18.
Fig. 20 is a front view of the support platform of the present invention.
Fig. 21 is a top view of the support platform of the present invention.
Fig. 22 is a structural view of the evaporative pattern of the present invention.
FIG. 23 is a view showing a structure of a blank member in the present invention.
In the figure, 100 filler processing devices, 101 lower connecting plates, 102 lower upright columns, 103 filler seats, 103a step through holes, 103b steps, 104 upper upright columns, 105 upper connecting plates, 106 second linear drivers, 107 second piston rods, 108 pressing blocks, 109 metal rods, 110 top plates, 111 positioning plates, 112 fixing blocks, 113 first piston rods, 114 first linear drivers, 200 lost molds, 201 vertical mold bodies, 201a vertical circular through holes, 202 horizontal mold bodies, 202a horizontal circular through holes, 300 installation box bodies, 400 casting devices, 401 second steel meshes, 402 first steel meshes, 403 casting frames, 405 first cover plates, 405a first air outlet holes, 405b casting holes, 405c second air outlet holes, 406 fastening bolts, 407 second cover plates, 500 first connecting pieces, 600 second connecting pieces, 700 third connecting pieces, 800 nitriding processing devices, 801 driving motors, fixed seats 802, 803 second sealing components, 803a second insulating sealing plate, 803b second insulating sealing spacer, 803c second fixing bolt, 804 first sealing assembly, 804a first fixing bolt, 804b first insulating sealing spacer, 804c first insulating sealing plate, 805 first insulating bush, 806 red copper bush, 807 second insulating bush, 807a connecting through hole, 808 red copper electrode, 809 step shaft, 810 main shaft, 811 third sealing assembly, 811a third fixing bolt, 811b third insulating sealing spacer, 811c third insulating sealing plate, 812 four-way pipe, 812a second connecting part, 812b fourth connecting part, 812c third connecting part, 812d first connecting part, 813 first valve, 814 third valve, 815 second valve, 816 vacuum pump, nitrogen gas storage tank, 818 power supply contact, 819 anode power supply line, 820 red copper disc spring washer, 821 red copper bolt, 900 cathode power supply line, 1000 support platform, 1001 first support sink, 1002 second support sink, 2000 blank, 2001 second boss, 2002 vertical tube, 2003 first boss, 2004 horizontal tube, 2005 third boss.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 14 and 22, the embodiment provides a method for processing a 304 stainless steel sewage pump pipeline, which can realize the processing of the sewage pump pipeline, and the pipeline processed by the embodiment has a reliable structure.
A processing method of a 304 stainless steel dredge pump pipeline comprises the following steps:
(S1) processing a lost foam 200 with the same shape as the pipeline of the sewage pump, wherein the lost foam 200 comprises a vertical mold body 201, a horizontal mold body 202 is fixed at the side end of the vertical mold body 201, a vertical round through hole 201a is formed in the vertical mold body 201, and a transverse round through hole 202a communicated with the vertical round through hole 201a is formed in the horizontal mold body 202;
(S2) processing two cores capable of respectively filling the vertical circular through hole 201a and the horizontal circular through hole 202a using the filler processing apparatus 100;
(S3) inserting the lost foam 200 onto the mounting box body 300, wherein one mold core is vertically placed into the vertical round through hole 201a from the top of the vertical mold body 201, the other mold core is horizontally placed into one end, far away from the vertical mold body 201, of the transverse mold body, molding sand is placed into the vertical round through hole 201a from the top of the lost foam 200, and the lost foam 200 with the two mold cores is taken out of the mounting box body 300 after compaction;
(S4) horizontally putting the lost foam 200 with the two cores into a casting device 400, and processing the part to be formed by using the casting device 400;
(S5) processing the part to be formed by using a processing center to process a blank piece 2000 with the same shape as the pipeline of the sewage pump;
(S6) blasting the inner hole of the blank 2000 (which is prior art);
(S7) the inner hole of the blank member 2000 subjected to the sand blast processing is nitrided.
In order to realize the processing of the mold core, in step (S2), the filler processing apparatus 100 includes a filling seat 103, a plurality of upper pillars 104 are arranged on the upper side of the filling seat 103, an upper connection plate 105 is fixedly connected to the upper side of the upper pillars 104, a plurality of lower pillars 102 are arranged on the lower side of the filling seat 103, a lower connection plate 101 is fixedly connected to the lower side of the lower pillars 102, a stepped through hole 103a is formed on the filling seat 103, a first linear actuator 114 is fixedly connected to the upper side of the lower connection plate 101, a first piston rod 113 capable of performing reciprocating linear movement in the height direction is connected to the first linear actuator 114, the upper end of the first piston rod 113 extends into the stepped through hole 103a, a step 103b is arranged on the filling seat 103 at the lower portion of the stepped through hole 103a, a top plate 110 capable of sliding along the stepped through hole 103a just above the step 103b is arranged on the upper side of the step 103b, and the top plate 110 is connected to the first piston rod 113, a plurality of slidable metal rods 109 are arranged on the top plate 110, a second linear actuator 106 is fixedly connected to the lower side of the upper connecting plate 105, the second linear actuator 106 and the first linear actuator 114 are preferably cylinders, a second piston rod 107 capable of performing reciprocating linear movement in the height direction is connected to the second linear actuator 106, a pressing block 108 is fixedly connected to one end, extending downwards out of the second linear actuator 106, of the second piston rod 107, the lower portion of the pressing block 108 can just extend into the step through hole 103a, and the upper end of the metal rod 109 is slidably connected to the pressing block 108.
In order to further realize the positioning of the height of the metal rod 109, a fixing block 112 is fixedly connected to the inner side of the lower upright post 102, a positioning plate 111 is connected to the fixing block 112 in a threaded manner, the lower side of the metal rod 109 contacts with the upper side of the positioning plate 111, and the first piston rod 113 penetrates through a through hole in the positioning plate 111 upwards.
In order to further realize the machining of the core of the lost foam 200, the step of machining the core using the filler machining apparatus 100 is specifically,
rotating the positioning plate 111, and stopping rotating the positioning plate 111 when the positioning plate 111 moves to a required height;
the metal rod 109 is inserted into the upper guide hole on the pressing block 108 and the lower guide hole on the top plate 110 in sequence and then contacts with the upper side of the positioning plate 111;
the step through hole 103a is filled with molding sand;
the second linear driver 106 acts to move the second piston rod 107 downwards, and after the molding sand is compacted, the second linear driver 106 acts reversely and resets, and the second linear driver 106 stops acting;
the first linear driver 114 operates to move the first piston rod 113 upwards, and the top plate 110 pushes the lost foam 200 out of the stepped through hole 103a, so that the mold core is obtained.
The casting device 400 includes a casting frame 403 having a processing opening facing upward, a first cover plate 405 is detachably attached to an upper side of the casting frame 403, the first cover plate 405 is detachably attached to the casting frame 403 using fastening bolts 406, a first air outlet hole 405a, a casting hole 405b, and a second air outlet hole 405c are opened in the first cover plate 405, and a second cover plate 407 is detachably attached to one side of the casting frame 403 in a front-rear direction.
In order to further realize the processing of the sewage pump pipeline, the step of processing the to-be-formed piece by using the casting device 400 is as follows:
molding sand is put into the processing opening of the casting frame 403, and when the height of the molding sand reaches the required height, the lost foam 200 is horizontally put into the casting frame 403;
a first steel wire mesh 402 is placed at the left side of the lost foam 200, and second steel wire meshes 401 are respectively placed above and below the right side of the lost foam 200;
a cylindrical first connecting piece 500 is placed at the top end of the left side of the vertical die body 201, the upper end of the first connecting piece 500 just upwards penetrates through a first air outlet 405a, a conical second connecting piece 600 is placed at the top end of the right side of the vertical die body 201, the upper end of the second connecting piece 600 just penetrates through a casting hole 405b, a cylindrical third connecting piece 700 is placed at the top end of the right side of the transverse die body, the upper end of the third connecting piece 700 just upwards penetrates through a second air outlet 405c, and the lower end of the third connecting piece 700 penetrates through meshes on the second steel wire mesh 401 above;
continuously putting the molding sand into the casting frame 403 until the molding sand is full, after compacting the molding sand, covering the second cover plate 407, and fixedly connecting the second cover plate 407 to the casting frame 403 by using a fixing bolt;
the first connector 500, the second connector 600 and the third connector 700 are taken out;
the end where the first cover plate 405 is located is suspended downwards, the casting frames 403 are heated, and the lost foam 200 is melted and flows out of the first air outlet 405a, the casting hole 405b and the second air outlet 405 c;
put first apron 405 place one end up, first apron 405 is pulled down from casting frame 403, and the circular cone hole that forms along second connecting piece 600 department pours into 304 stainless steel liquid into, exhausts from first venthole 405a and second venthole 405c, is full of the die cavity and cools off the back when 304 stainless steel liquid, loosens fastening bolt 406 on the second apron 407, takes off second apron 407 and pours out, gets rid of molding sand, wire net and metal pole 109, obtains waiting to form the piece.
According to the invention, the lost foam 200 with the mold core is placed in the casting frame 403 before casting, the mold cavity with the mold core support is formed after the lost foam 200 is melted, then the mold cavity is cast, the to-be-formed part with the support inside and integrated with the to-be-formed part is obtained, and the reliability of the connection structure between the horizontal pipe 2004 and the vertical pipe 2002 is improved.
Example 2
Referring to fig. 16 to 19 and 23, the present embodiment provides a method for processing a 304 stainless steel dredge pump pipe, which can further achieve nitriding of the inner wall surface of the pipe.
A processing method of a 304 stainless steel dredge pump pipeline uses a nitriding processing device 800 to process an inner hole of a blank 2000, wherein the blank 2000 comprises a vertical pipe 2002, a first boss 2003 and a second boss 2001 are respectively fixed at the upper end and the lower end of the vertical pipe 2002, and a horizontal pipe 2004 is fixed at the side end of the vertical pipe 2002; the nitriding processing device 800 comprises an electric discharge assembly and a gas suction and discharge assembly, wherein a first sealing assembly 804 for sealing the upper end of the vertical tube 2002 is fixedly connected to the upper side of a first boss 2003, a second sealing assembly 803 for sealing the lower end of the vertical tube 2002 is fixedly connected to the lower side of a second boss 2001, a third boss 2005 is fixedly arranged at one end of the horizontal tube 2004 far away from the vertical tube 2002, a third sealing assembly 811 for sealing the horizontal tube 2004 is connected to the third boss 2005, and the electric discharge assembly and the gas suction and discharge assembly can be respectively connected to the second sealing assembly 803 or the third sealing assembly 811.
In order to further realize nitridation, the discharge assembly comprises a rotatable main shaft 810, a first insulating sleeve 805 is arranged on the outer side of the main shaft 810 extending into the blank 2000, a red copper sleeve 806 is arranged on the outer side of the first insulating sleeve 805, a second insulating sleeve 807 is arranged on the outer side of the red copper sleeve 806, a plurality of staggered threaded through holes are arranged on the red copper sleeve 806, a plurality of connecting through holes 807a corresponding to the threaded through holes one to one are arranged on the second insulating sleeve 807, a red copper electrode is arranged in each connecting through hole 807a, the gas suction and discharge and gas inlet assembly comprises a nitrogen tank and a vacuum pump 816 which can be respectively communicated with the inner cavity of the blank 2000, a four-way pipe 812 is connected to the sealing assembly, the four-way pipe 812 comprises a first connecting part 812d fixedly connected to a third sealing assembly 811, and a second connecting part 812a and a third connecting part 812c are fixed on one side, far away from the third sealing assembly 811, of the first connecting part 812d, the connection part of the second connection part 812a and the third connection part 812c is connected with a fourth connection part 812b, the end part of the second connection part 812a is connected with a first valve 813, the end part of the third connection part 812c is connected with a nitrogen gas storage tank 817, the third connection part 812c is connected with a second valve 815, the end part of the fourth connection part 812b is connected with a vacuum pump 816, and the fourth connection part 812b is connected with a third valve 814.
In order to further facilitate the electrical connection of the cathode and the anode of the blank 2000, the nitriding processing device 800 further comprises a supporting platform 1000, a first supporting sinking groove 1001 and a second supporting sinking groove 1002 are formed on one upward side of the supporting platform 1000, the axial directions of the first supporting sinking groove 1001 and the second supporting sinking groove 1002 are perpendicular to each other, the vertical tube 2002 is supported on the supporting platform 1000 through the first supporting sinking groove 1001, the horizontal tube 2004 is supported on the supporting platform 1000 through the second supporting sinking groove 1002, a cathode power line 900 is connected to the supporting platform 1000, when the cathode power line 900 is electrically connected, the current is transmitted to the blank 2000 through the supporting platform 1000 to make the blank 2000 become a cathode electrode, an elastic power contact piece 818 is arranged between the lower side of the copper bush 806 and the second insulating sealing plate 803a of the second sealing assembly 803, a copper bolt 821 is threadedly connected to the power contact piece 818, and the lower portion of the copper bolt 821 is threadedly connected to the corresponding insulating sealing plate, the power contact 818 is pressed on the upper side of the insulating sealing plate through a red copper disc spring gasket 820 by a red copper bolt 821, a transverse through hole is formed in the second sealing assembly 803, an anode power supply wire 819 is arranged in the transverse through hole, and the red copper bolt 821 is pressed on the anode power supply wire 819.
For illustration, the discharge assembly is mounted on the second sealing assembly 803, and the air exhaust and intake assembly is mounted on the third sealing assembly 811, the main shaft 810 extends into the inner cavity of the vertical tube 2002, the driving motor 801 is fixedly connected to the lower side of the second sealing assembly 803, and the main shaft 810 is connected to the driving motor 801.
In order to further improve the reliability of the structure when the first insulating sleeve 805, the red copper sleeve 806, the second insulating sleeve 807 and the main shaft 810 are connected together, a threaded counter bore is arranged in the center of the first insulating sleeve 805, the first insulating sleeve 805 is in threaded connection with a step shaft 809 through the threaded counter bore, a threaded hole is formed in the step shaft 809, the main shaft 810 is connected with the step shaft 809 through the threaded hole, and a limiting step at the top of the step shaft 809 abuts against the upper sides of the first insulating sleeve 805, the red copper sleeve 806 and the second insulating sleeve 807.
Example 3
Referring to fig. 6, this embodiment provides a method for processing a 304 stainless steel dredge pump pipeline, which is different from embodiments 1 and 2 in that it can implement nitriding processing of the inner wall surface of the pipeline and improve the wear resistance of the inner wall surface of the pipeline.
The nitriding process using the nitriding process apparatus 800 includes the steps of,
the main shaft 810 is arranged on the second sealing assembly 803, and the air exhausting and intaking assembly is arranged on the third sealing assembly 811;
controlling the third valve 814 to be opened, and operating the vacuum pump 816 to pump the inner cavity of the blank piece 2000 to be vacuum;
controlling the second valve 815 to be opened, and introducing nitrogen into the inner cavity of the blank 2000 by the nitrogen gas storage tank 817;
the anode power line 819 and the cathode power line 900 are respectively connected with electricity to control the action of the driving motor 801, current flows from the anode power line 819 to contact with the red copper bolt 821, the power contact 818 and the red copper sleeve 806 in sequence, the main shaft 810 drives the red copper sleeve 806 to rotate, the red copper electrode 808 generates glow discharge according to the rotation direction circulation, nitrogen ions are made to circularly rush to the inner wall surface of the vertical tube 2002 at a high speed, elements such as Fe and the like are splashed out from the inner wall surface of the vertical tube 2002 after the nitrogen ions rush to combine with the nitrogen ions to form iron nitride, the iron nitride is gradually adsorbed on the inner wall surface of the vertical tube 2002, and after the nitridation is finished, the power supply of the anode power line 819 and the cathode power line 900 is cut off;
the first valve 813 is controlled to be opened and deflated, so that the air pressure in the inner cavity of the blank 2000 is consistent with the air pressure outside;
the positions of the air suction and exhaust air inlet assembly and the discharge assembly are exchanged, the first valve 813 is controlled to be closed, and the actions are repeated to finish the nitridation of the inner wall surface of the transverse pipe 2004;
the first valve 813 is controlled to be opened and deflated, so that the air pressure in the inner cavity of the blank 2000 is consistent with the air pressure outside;
and (4) detaching each sealing assembly, and taking out the nitrided blank piece 2000 to obtain the sewage pump pipeline.
This embodiment realizes nitriding of the inner walls of the vertical tube 2002 and the horizontal tube 2004 of the blank 2000, and improves the wear resistance of the inner wall surface of the pipe to improve the service life thereof.
Example 4
Referring to fig. 15, the embodiment provides a processing method of a 304 stainless steel sewage pump pipeline, which is different from embodiments 1 to 3 in that the method can specifically realize the sealing of the inner cavity of a blank 2000.
The first sealing assembly 804 includes a first insulating and sealing spacer ring 804b, a first insulating and sealing plate 804c is disposed on an upper side of the first insulating and sealing spacer ring 804b, and the first insulating and sealing plate 804c and the first insulating and sealing spacer ring 804b are fixedly connected to the first boss 2003 by using a first fixing bolt 804a, so as to close an upper end of the standpipe 2002.
Taking the example of the discharge assembly being connected to the second sealing assembly 803, the second sealing assembly 803 includes a second insulating and sealing spacer 803b, a second insulating and sealing plate 803a is disposed under the second insulating and sealing spacer 803b, the fixing base 802 on the driving motor 801 is disposed under the second insulating and sealing plate 803a, and the fixing base 802, the second insulating and sealing plate 803a and the second insulating and sealing spacer 803b are fixedly connected to the vertical tube 2002 by using a second fixing bolt 803 c.
The arrangement of the first sealing assembly 804, the second sealing assembly 803 and the third sealing assembly 811 realizes the omnibearing sealing of the inner cavity of the blank 2000, and the connection is convenient.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A processing method of a 304 stainless steel sewage pump pipeline is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
processing a lost foam (200) with the same shape as a sewage pump pipeline, wherein the lost foam (200) comprises a vertical mold body (201), a horizontal mold body (202) is fixed at the side end of the vertical mold body (201), a vertical round through hole (201a) is formed in the vertical mold body (201), and a transverse round through hole (202a) communicated with the vertical round through hole (201a) is formed in the horizontal mold body (202);
processing two mold cores capable of respectively filling a vertical round through hole (201a) and a transverse round through hole (202a) by using a filler processing device (100);
inserting the lost foam (200) onto the mounting box body (300), vertically placing one mold core into the vertical round through hole (201a) from the top of the vertical mold body (201), horizontally placing the other mold core into one end, far away from the vertical mold body (201), of the transverse mold body, placing molding sand into the vertical round through hole (201a) from the top of the lost foam (200), and taking out the lost foam (200) with the two mold cores from the mounting box body (300) after compaction;
horizontally placing the lost foam (200) with the two mold cores into a casting device (400), and processing the part to be formed by using the casting device (400);
processing a to-be-formed part by using a processing center to process a blank (2000) with the same shape as the pipeline of the sewage pump;
carrying out sand blasting treatment on an inner hole of the blank piece (2000);
and nitriding the inner hole of the blank (2000) after the sand blasting treatment.
2. The processing method of the 304 stainless steel dredge pump pipeline of claim 1, characterized by: the filler processing device (100) comprises a filling seat (103), a step through hole (103a) is formed in the filling seat (103), a first linear driver (114) is arranged below the filling seat (103), a first piston rod (113) capable of performing reciprocating linear movement in the height direction is connected onto the first linear driver (114), the upper end of the first piston rod (113) extends into the step through hole (103a), a step (103b) is arranged on the filling seat (103) at the lower part of the step through hole (103a), a top plate (110) capable of sliding along the step through hole (103a) above the step (103b) is arranged on the upper side of the step (103b), the top plate (110) is connected with the first piston rod (113), a plurality of slidable metal rods (109) are distributed on the top plate (110), a second linear driver (106) is arranged above the filling seat (103), the second linear driver (106) is connected with a second piston rod (107) capable of performing reciprocating linear movement in the height direction, one end, extending out of the second linear driver (106), of the second piston rod (107) is fixedly connected with a pressing block (108), the lower portion of the pressing block (108) can just extend into the step through hole (103a), and the upper end of the metal rod (109) is connected to the pressing block (108) in a sliding mode.
3. The method for processing the 304 stainless steel dredge pump pipeline of claim 2, characterized in that: the packing seat is characterized in that a fixing block (112) is fixedly connected to the lower side of the packing seat (103), a positioning plate (111) is connected to the fixing block (112) in a threaded mode, the lower side of the metal rod (109) is in contact with the upper side of the positioning plate (111), and the first piston rod (113) upwards penetrates through holes in the positioning plate (111).
4. The method for processing the 304 stainless steel dredge pump pipeline of claim 3, characterized in that: the step of machining the mold core by using the filler machining device (100) is specifically,
the positioning plate (111) is rotated, and when the positioning plate (111) moves to a required height, the positioning plate (111) stops rotating;
the metal rod (109) is inserted into an upper guide hole on the pressing block (108) and a lower guide hole on the top plate (110) in sequence and then contacts with the upper side of the positioning plate (111);
the step through hole (103a) is filled with molding sand;
the second linear driver (106) acts to enable the second piston rod (107) to move downwards, after the molding sand is compacted, the second linear driver (106) acts reversely and resets, and the second linear driver (106) stops acting;
and (3) the first linear driver (114) acts to move the first piston rod (113) upwards, and the top plate (110) pushes the lost foam (200) out of the step through hole (103a), so that the mold core is obtained.
5. The processing method of the 304 stainless steel dredge pump pipeline of any claim 1-4, characterized by: the casting device (400) comprises a casting frame (403) with an upward processing opening, a first cover plate (405) is detachably connected to the upper side of the casting frame (403), a first air outlet hole (405a), a casting hole (405b) and a second air outlet hole (405c) are formed in the first cover plate (405), and a second cover plate (407) is detachably connected to one side of the casting frame (403) in the front-back direction.
6. The method for processing the 304 stainless steel dredge pump pipeline of claim 5, characterized in that: the step of processing the piece to be formed by using the casting device (400) comprises the following steps,
molding sand is put into the processing opening of the casting frame (403), and when the height of the molding sand reaches the required height, the lost foam (200) is horizontally put into the casting frame (403);
a first steel wire mesh (402) is placed on the left side of the lost foam (200), and second steel wire meshes (401) are respectively placed above and below the right side of the lost foam (200);
a cylindrical first connecting piece (500) is placed at the top end of the left side of the vertical die body (201), the upper end of the first connecting piece (500) just upwards penetrates through a first air outlet hole (405a), a conical second connecting piece (600) is placed at the top end of the right side of the vertical die body (201), the upper end of the second connecting piece (600) just penetrates through a casting hole (405b), a cylindrical third connecting piece (700) is placed at the top end of the right side of the transverse die body, the upper end of the third connecting piece (700) just upwards penetrates through a second air outlet hole (405c), and the lower end of the third connecting piece (700) penetrates through meshes on the second steel wire mesh (401) above;
continuously putting the molding sand into the casting frame (403) until the molding sand is full, after compacting the molding sand, covering a second cover plate (407), and fixedly connecting the second cover plate (407) to the casting frame (403) by using a fixing bolt;
taking out the first connector (500), the second connector (600) and the third connector (700);
one end of the first cover plate (405) is suspended downwards, the casting frames (403) are heated, and the lost foam (200) is melted and flows out of the first air outlet hole (405a), the casting hole (405b) and the second air outlet hole (405 c);
putting one end of a first cover plate (405) upwards, detaching the first cover plate (405) from a casting frame (403), injecting 304 stainless steel liquid along a conical hole formed in the second connecting piece (600), loosening fastening bolts (406) on the second cover plate (407) after the 304 stainless steel liquid is filled in a cavity and cooled, taking down the second cover plate (407) and pouring out, and removing molding sand, a steel wire mesh and a metal rod (109) to obtain a to-be-formed piece.
7. The processing method of the 304 stainless steel dredge pump pipeline of any claim 1-4, characterized by: processing an inner hole of a blank piece (2000) by using a nitriding processing device (800), wherein the blank piece (2000) comprises a vertical pipe (2002), a first boss (2003) and a second boss (2001) are respectively fixed at the upper end and the lower end of the vertical pipe (2002), and a transverse pipe (2004) is fixed at the side end of the vertical pipe (2002); the nitriding processing device (800) comprises an electric discharge assembly and an air suction and discharge assembly, wherein a first sealing assembly (804) for sealing the upper end of a vertical pipe (2002) is fixedly connected to the upper side of a first boss (2003), a second sealing assembly (803) for sealing the lower end of the vertical pipe (2002) is fixedly connected to the lower side of a second boss (2001), a third sealing assembly (811) for sealing a transverse pipe (2004) is connected to one end, far away from the vertical pipe (2002), of the transverse pipe (2004), and the electric discharge assembly and the air suction and discharge assembly can be respectively connected to the second sealing assembly (803) or the third sealing assembly (811).
8. The method for processing a 304 stainless steel dredge pump pipeline of claim 7, characterized in that: the discharging component comprises a main shaft (810), a first insulating sleeve (805) is arranged on the outer side of the main shaft (810) extending into a blank (2000), a red copper sleeve (806) is arranged on the outer side of the first insulating sleeve (805), a second insulating sleeve (807) is arranged on the outer side of the red copper sleeve (806), a plurality of staggered threaded through holes are formed in the red copper sleeve (806), a plurality of connecting through holes (807a) corresponding to the threaded through holes in a one-to-one mode are formed in the second insulating sleeve (807), a red copper electrode (808) is arranged in each connecting through hole (807a), the air pumping and discharging component comprises a nitrogen tank and a vacuum pump (816) which can be communicated with the inner cavity of the blank (2000) respectively, a four-way pipe (812) is connected onto a sealing component, each four-way pipe (812) comprises a first connecting portion (812d) fixedly connected onto a third sealing component (811), and a second connecting portion (812a) and a third connecting portion (811) are fixed on one side, far away from the third sealing component (811), of each first connecting portion (812d) The connecting part (812c), the junction of second connecting part (812a) and third connecting part (812c) is connected with fourth connecting part (812b), the end connection of second connecting part (812a) has first valve (813), the end connection of third connecting part (812c) has nitrogen gas holder (817), is connected with second valve (815) on third connecting part (812c), the end connection of fourth connecting part (812b) has vacuum pump (816), is connected with third valve (814) on fourth connecting part (812 b).
9. The method of machining a 304 stainless steel dredge pump pipe of claim 8, characterized in that: the nitriding processing device (800) further comprises a supporting platform (1000), a first supporting sinking groove (1001) and a second supporting sinking groove (1002) are formed in one upward side of the supporting platform (1000), the axial directions of the first supporting sinking groove (1001) and the second supporting sinking groove (1002) are perpendicular to each other, the vertical pipe (2002) is supported on the supporting platform (1000) through the first supporting sinking groove (1001), the horizontal pipe (2004) is supported on the supporting platform (1000) through the second supporting sinking groove (1002), the supporting platform (1000) is connected with a cathode power line (900), an elastic power contact piece (818) is arranged between the lower side of the red copper sleeve (806) and a second insulating sealing plate (803a) of the second sealing assembly (803), a red copper bolt (821) is in threaded connection with the power contact piece (818), a transverse through hole is formed in the second sealing assembly (803), and an anode power line (819) is arranged in the transverse through hole, the red copper bolt (821) is pressed on the anode power supply wire (819).
10. The method of machining a 304 stainless steel dredge pump pipe of claim 9, characterized in that: the nitriding process is performed by using a nitriding process apparatus (800),
mounting the main shaft (810) on a second sealing assembly (803), and mounting the air exhausting and intaking assembly on a third sealing assembly (811);
controlling the third valve (814) to be opened, operating the vacuum pump (816) and vacuumizing the inner cavity of the blank piece (2000);
controlling the second valve (815) to be opened, and introducing nitrogen into the inner cavity of the blank (2000) by the nitrogen storage tank (817);
the anode power line (819) and the cathode power line (900) are respectively connected with electricity, after current sequentially passes through the red copper bolt (821), the power contact piece (818) and the red copper sleeve (806) from the anode power line (819), the red copper electrode (808) generates glow discharge, nitrogen ions are flushed to the inner wall surface of the vertical tube (2002), iron nitride is gradually adsorbed to the inner wall surface of the vertical tube (2002), and after nitridation is finished, the power supply of the anode power line (819) and the power supply of the cathode power line (900) are cut off;
controlling the first valve (813) to open and deflate to ensure that the air pressure in the inner cavity of the blank (2000) is consistent with the external air pressure;
the positions of the air suction and exhaust air inlet assembly and the position of the discharge assembly are exchanged, the first valve (813) is controlled to be closed, and the actions are repeated to finish the nitridation of the inner wall surface of the transverse pipe (2004);
controlling the first valve (813) to open and deflate to ensure that the air pressure in the inner cavity of the blank (2000) is consistent with the external air pressure;
and (4) disassembling each sealing assembly, and taking out the nitrided blank piece (2000) to obtain the sewage pump pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210921674.XA CN115106483B (en) | 2022-08-02 | 2022-08-02 | Processing method of 304 stainless steel sewage pump pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210921674.XA CN115106483B (en) | 2022-08-02 | 2022-08-02 | Processing method of 304 stainless steel sewage pump pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115106483A true CN115106483A (en) | 2022-09-27 |
| CN115106483B CN115106483B (en) | 2023-09-05 |
Family
ID=83334694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210921674.XA Active CN115106483B (en) | 2022-08-02 | 2022-08-02 | Processing method of 304 stainless steel sewage pump pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115106483B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612978A (en) * | 2022-10-25 | 2023-01-17 | 扬州大学 | Nitriding device for stainless steel marble |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314308A (en) * | 1996-05-23 | 1997-12-09 | Daido Steel Co Ltd | Lost foam pattern casting method |
| US6845527B1 (en) * | 2004-04-17 | 2005-01-25 | Guy Lindsay Kohn | In-the-wall plumbing trap with integral waste and vent line |
| CN203008102U (en) * | 2012-12-28 | 2013-06-19 | 攀钢集团工程技术有限公司 | Blowdown device |
| CN108971429A (en) * | 2018-08-05 | 2018-12-11 | 重庆檀科科技有限公司 | A kind of casting elongated hole casting device |
| CN110788281A (en) * | 2019-12-11 | 2020-02-14 | 扬州大学 | Machining die for ducted type oil smoke backflow prevention non-return device base |
| CN111266531A (en) * | 2020-03-14 | 2020-06-12 | 安徽恒顺生产力促进中心有限公司 | Pouring device and pouring process for lost foam casting |
| CN111603875A (en) * | 2020-04-22 | 2020-09-01 | 安徽省繁昌县皖南阀门铸造有限公司 | Waste gas purification treatment device for lost foam casting |
| CN111676442A (en) * | 2020-07-29 | 2020-09-18 | 扬州大学 | 304 stainless steel dredge pump blade nitriding equipment and nitriding method |
| CN111843407A (en) * | 2020-07-29 | 2020-10-30 | 扬州大学 | Nitriding device and nitriding processing method for 304 stainless steel spiral reamer |
| CN214349558U (en) * | 2021-01-26 | 2021-10-08 | 康硕(山西)智能制造有限公司 | Aluminum alloy lost foam casting equipment |
-
2022
- 2022-08-02 CN CN202210921674.XA patent/CN115106483B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09314308A (en) * | 1996-05-23 | 1997-12-09 | Daido Steel Co Ltd | Lost foam pattern casting method |
| US6845527B1 (en) * | 2004-04-17 | 2005-01-25 | Guy Lindsay Kohn | In-the-wall plumbing trap with integral waste and vent line |
| CN203008102U (en) * | 2012-12-28 | 2013-06-19 | 攀钢集团工程技术有限公司 | Blowdown device |
| CN108971429A (en) * | 2018-08-05 | 2018-12-11 | 重庆檀科科技有限公司 | A kind of casting elongated hole casting device |
| CN110788281A (en) * | 2019-12-11 | 2020-02-14 | 扬州大学 | Machining die for ducted type oil smoke backflow prevention non-return device base |
| CN111266531A (en) * | 2020-03-14 | 2020-06-12 | 安徽恒顺生产力促进中心有限公司 | Pouring device and pouring process for lost foam casting |
| CN111603875A (en) * | 2020-04-22 | 2020-09-01 | 安徽省繁昌县皖南阀门铸造有限公司 | Waste gas purification treatment device for lost foam casting |
| CN111676442A (en) * | 2020-07-29 | 2020-09-18 | 扬州大学 | 304 stainless steel dredge pump blade nitriding equipment and nitriding method |
| CN111843407A (en) * | 2020-07-29 | 2020-10-30 | 扬州大学 | Nitriding device and nitriding processing method for 304 stainless steel spiral reamer |
| CN214349558U (en) * | 2021-01-26 | 2021-10-08 | 康硕(山西)智能制造有限公司 | Aluminum alloy lost foam casting equipment |
Non-Patent Citations (2)
| Title |
|---|
| 吴志超, 叶升平, 梅琼风, 黄乃瑜, 王松林, 孙洪超, 吴来发, 解明国: "复杂箱体消失模发泡模具设计与制造", 铸造, no. 04 * |
| 谢崇宝;张国华;鲁少华;卢文娟;陈娟;谢瑞环: "曲面底一体化污水收集装置研发", 中国农村水利水电, no. 001 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115612978A (en) * | 2022-10-25 | 2023-01-17 | 扬州大学 | Nitriding device for stainless steel marble |
| CN115612978B (en) * | 2022-10-25 | 2023-08-15 | 扬州大学 | Nitriding device for stainless steel marble |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115106483B (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115106483A (en) | Method for processing 304 stainless steel sewage pump pipeline | |
| CN100341643C (en) | Die casting machine and casting method by thereof machine | |
| CN1451501A (en) | Forming device | |
| CN107871878A (en) | A kind of heating, vacuum packaging machine | |
| CN116441517B (en) | Quick casting demoulding mechanism | |
| CN106239698B (en) | Multistation forming machine for concrete building unit | |
| CN108515158B (en) | Amorphous alloy smelting and die-casting forming device and method | |
| CN210547996U (en) | Die casting mechanism for aluminum alloy die casting machine | |
| CN205818110U (en) | A kind of mould for low-pressure casting | |
| CN202715814U (en) | Zinc alloy template vibration casting molding device | |
| CN211101535U (en) | High-strength flywheel casting device | |
| CN105073303B (en) | Rotor casting apparatus having lever-controlled venting function, and rotor casting method | |
| CN210937008U (en) | Automatic purging machine for exhaust riser of static pressure molding line | |
| CN203700548U (en) | Anode guide rod and anode steel claw connecting structure | |
| CN110640109B (en) | Horizontal liquid die forging production method | |
| CN211105328U (en) | Notebook computer plastic part injection mold with vacuumizing mechanism | |
| CN109333410A (en) | A kind of inflatable epoxy pouring tooling | |
| CN201524792U (en) | Die casting mould for impellers | |
| CN205324541U (en) | Receiving agencies for spinning -lathe | |
| CN110681833A (en) | Sand box applied to V-method vertical molding process and V-method vertical molding system | |
| CN204657404U (en) | The adjustable sealing raining-type sand filling device adding sand amount | |
| CN109093353A (en) | A kind of electric bicycle wheel cap pressing bearing oil seal mechanism | |
| CN218134907U (en) | Aluminum alloy casting device | |
| CN220805416U (en) | Flywheel casing lost foam casting mould | |
| CN207010435U (en) | A kind of shell structure of fluid-cooled electrical machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |