CN109676084A - A kind of cold core sand casting device and casting technique - Google Patents
A kind of cold core sand casting device and casting technique Download PDFInfo
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- CN109676084A CN109676084A CN201910003556.9A CN201910003556A CN109676084A CN 109676084 A CN109676084 A CN 109676084A CN 201910003556 A CN201910003556 A CN 201910003556A CN 109676084 A CN109676084 A CN 109676084A
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/12—Accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a kind of cold core sand casting device and casting techniques, including pedestal, fixed plate, first sliding groove, second sliding block and the second threaded hole, pedestal top side is equipped with fixed plate, structure of the invention is scientific and reasonable, it is safe and convenient to use, base bottom surrounding is mounted on universal wheel, it is carried and is moved convenient for staff, drag box is placed in pedestal top, threaded rod is rotated by operating rocking bar, threaded rod position is fixed in limit plate, threaded rod rotation drives the first sliding block to be moved, to make movable plate be moved, first sliding block and fixed plate are clamped drag box, limit plate is moved by mobile second sliding block, drag box two sides are fixed in limit plate, and limit Board position is fixed by the second threaded hole and fastening bolt mating connection, finally work Cope is placed on the inside of limit plate by personnel by lug is completely coincident cope with drag box.
Description
Technical field
The present invention relates to Casting Equipment technical field, specially a kind of cold core sand casting device and casting technique.
Background technique
Casting is that Metal Melting through cooled and solidified, is leveled processing at meeting necessarily required liquid and pouring into casting mold
The technical process of the casting of predetermined shape, size and performance is obtained afterwards, and cast blank reaches because of almost forming and exempts from mechanical add
Work or the purpose processed on a small quantity reduce costs and reduce to a certain extent Production Time, and casting is modem devices manufacture work
One of fundamental technology of industry.
But burr cannot be cleared up completely in existing casting technique, be not easy to move casting device, it cannot be right
The different sandbox of size is fixed, while when cope and drag box are harmonious be easy to cause deviation, therefore designs a kind of cold core
Sand casting device and casting technique are necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of cold core sand casting device and casting techniques, to solve in above-mentioned background technique
The problem of proposition.
In order to solve the above technical problem, the present invention provides following technical solutions: a kind of cold core sand casting device, including bottom
Seat, fixed plate, movable plate, first sliding groove, threaded rod, rocking bar, universal wheel, drag box, cope, second sliding slot, lug, movement
Slot, fastening bolt, the first sliding block, the first threaded hole, fixed block, limit plate, stepped hole, limited block, the second sliding block and the second spiral shell
Pit, pedestal top side are equipped with fixed plate, and the pedestal top is provided with movable plate, and the pedestal top offers
First sliding groove, the movable plate bottom is equipped with the first sliding block, and the first sliding block and first sliding groove are cooperatively connected, and described first is sliding
The first threaded hole is offered on the outside of block, the first sliding groove is internally provided with threaded rod, and threaded rod is socketed on the first threaded hole
Inside, first sliding groove inside one end are equipped with fixed block, and the fixed block side offers stepped hole, the threaded rod one
End is installed on inside stepped hole, and described threaded rod one end, which is located inside stepped hole, is equipped with limit plate, the threaded rod side peace
Equipped with rocking bar, the fixed plate side is provided with drag box, and the drag box top is provided with cope, the cope two sides
It is mounted on lug, the fixed plate side offers second sliding slot, and the second sliding slot is internally provided with the second sliding block, described
Second sliding block side is equipped with limited block, offers shifting chute on the outside of the fixed plate, the shifting chute is internally provided with fastening
Bolt, the second sliding block outside offers the second threaded hole, and the second threaded hole and fastening bolt are cooperatively connected, the pedestal
Bottom surrounding is mounted on universal wheel.
A kind of cold core sand casting technique, includes the following steps: step 1, matches sand；Step 2, molding；Step 3, coremaking are made
Type；Step 4, casting；Step 5, knockout；Step 6, polishing processing；Step 7 is examined；It is characterized by:
Wherein in above-mentioned step one, type (core) sand is made of roughing sand, bonding agent and additives, and Foundry sand, which is selected, contains mud
Amount less, particle uniformly, shape be round and polygonal sea sand, river sand or mountain sand, roughing sand is added after screening to mulling
It is stirred in machine, bonding agent and additives, bonding agent are added in whipping process clay (unselected clay and bentonite), water glass
Glass sand, closes fatty oil and vegetable oil at resin, is referred to as clay-bonded sand, water-glass sand, resin sand, compound grease sand and vegetable oil sand are
The certain performances for further increasing type (core) sand, often will be added some additives in type (core) sand, as coal dust, sawdust,
Paper pulp.
Wherein in above-mentioned step two, mold and core box are made according to detail drawing, usually using wood or its
He is made metal material, and mold raw material is placed in engraving machine and carries out engraving and is made, brief fabrication cycle, Mold Making
Die size is slightly larger than finished product in journey, prevents fusing metal to mould action to ensure that molten metal doubts solid and contraction, thus anti-
The only cavity in casting process.
Wherein in above-mentioned step three, moulding is the shape chamber that casting is formed using molding sand, and coremaking is formed using core sand
Cast-internal shape, sand core will stay unobstructed exhaust duct, and general exhaust duct is that dry clinker, sand lump or coke are packed among sand core
Carbon is formed, and the exhaust duct of important sand core is squeezed into sand core and formed by spiral steel cuttings, straw rope or special wax wire, and exhaust duct must be sudden and violent
It is exposed at core print, with benefit exhaust and sand removal, sand core, which is hit when sand face is with steel contacts face, will press elder generation, need to beat at fillet and get circle
Sand core is placed in type chamber by angle, and upper drag box is got togather.
Wherein in above-mentioned step four, when casting, should follow high temperature and come out of the stove, and the principle of cast cold will be electric with ladle
In the type made of molten iron injection melted in furnace, when beginning, should be slowly poured, and convenient for alignment cast gate, reduction molten metal is to sand mold
Impact and be conducive to gas and be discharged, subsequent Quick pouring should be poured before soon pouring completely and slowly with preventing cold shut, that is, follow it is slow,
Fastly, principle slowly, the casting bigger for liquid contraction and solidification shrinkage will be in time from cast gate or hot topping after casting.
Wherein in above-mentioned step five, after casting complete, etc. after molten metals solidify completely, remove cast gate with hammer,
And gently most sand on the outside of casting is fallen in shake on the outside of hammering casting, the casting after preliminary treatment is put into shakeout, axis
It is laid particular stress on when rotation and generates centrifugal force, make to be mounted on the shakeout grate bed vibration in support spring, so that casting is driven to be shaken, it is right
Casting carries out thorough knockout processing.
Wherein in above-mentioned step six, by knockout, treated that casting is moved in sand-blasting machine, and pressure is utilized in pipeline
Contracting air makes sand grains carry out high-speed motion, and sand grains is made to wash away cast(ing) surface, carries out preliminary treatment to cast(ing) surface burr, reuses
Grinding wheel or sanding machine remove the burr that cast(ing) surface is difficult to clean off, and keep cast(ing) surface brighter and cleaner.
Wherein in above-mentioned step seven, staff mainly casts the inspection of treated casting to its appearance and lacks
Fall into, observation cast(ing) surface whether there is or not trachoma, Sha Kong, loose, whether there is or not misrun, casting cracks etc. passes through measurer according to drawing data
Casting is measured with instrument instrument, examines casting dimension whether qualified, is entered after castings are carried out antirust treatment
Inventory is put.
According to the above technical scheme, before the uses such as the casting ladle, casting tool, the inovulant of stokehold processing, nodulizer
It must sufficiently dry, could be used after drying.
According to the above technical scheme, the casting personnel must put on work clothes as required, and wear safety goggles, work
Place is answered unblocked, and the unsuitable overfill of molten metal in casting ladle is hurted sb.'s feelings in order to avoid overflowing in conveying and casting.
According to the above technical scheme, should be pleasant by the gas ignition emerged in casting mold in time when the casting, in order to avoid due to
Casting mold feels suffocated and generates stomata, and due to gas imperfect combustion and damage human health and pollution air.
According to the above technical scheme, after the sand core completes, sand core is placed under 200-250 ° of environment, passes through top
Blow method and subaeration processing sand core.
According to the above technical scheme, it is provided with fixing bolt on the outside of the fixed plate, the pedestal side offers bolt
Hole, and pedestal and fixed plate are cooperatively connected by fixing bolt and bolt hole.
According to the above technical scheme, the fixed plate side is equipped with knob, is socketed with rubber sleeve on the outside of the knob, institute
It states and is provided with anti-skid chequer on the outside of rubber sleeve.
Compared with prior art, the beneficial effects obtained by the present invention are as follows being: structure of the invention is scientific and reasonable, uses secure side
Just, base bottom surrounding is mounted on universal wheel, it is carried and is moved convenient for staff, drag box is placed in bottom
Seat top rotates threaded rod by operating rocking bar, and threaded rod position is fixed in limit plate, and threaded rod rotation drives
First sliding block is moved, so that movable plate be made to be moved, movable plate and fixed plate are clamped drag box, passes through movement
Second sliding block moves limited block, and drag box two sides are fixed in limited block, and passes through the second threaded hole and fastening spiral shell
Limited block position is fixed in bolt mating connection, and cope is placed on the inside of limited block by last staff by lug to be made
Cope is completely coincident with drag box.
In process of production, by matching sand, molding, coremaking moulding is poured, knockout the equipment, and polishing processing is examined, had
The generation of burr and hard edges can be handled in the reduction casting process of effect.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is entirety perspective view of the invention；
Fig. 2 is shifting chute mounting structure schematic diagram of the invention；
Fig. 3 is fixed block mounting structure schematic diagram of the invention；
Fig. 4 is fastening bolt mounting structure schematic diagram of the invention；
Fig. 5 is flowage structure schematic diagram of the invention；
In figure: 1, pedestal；2, fixed plate；3, movable plate；4, first sliding groove；5, threaded rod；6, rocking bar；7, universal wheel；8, lower sand
Case；9, cope；10, second sliding slot；11, lug；12, shifting chute；13, fastening bolt；14, the first sliding block；15, the first screw thread
Hole；16, fixed block；17, limit plate；18, stepped hole；19, limited block；20, the second sliding block；21, the second threaded hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of cold core sand casting device, including pedestal 1, fixation
Plate 2, movable plate 3, first sliding groove 4, threaded rod 5, rocking bar 6, universal wheel 7, drag box 8, cope 9, second sliding slot 10, lug
11, shifting chute 12, fastening bolt 13, the first sliding block 14, the first threaded hole 15, fixed block 16, limit plate 17, stepped hole 18, limit
Position block 19, the second sliding block 20 and the second threaded hole 21,1 top side of pedestal are equipped with fixed plate 2, and 1 top of pedestal is provided with shifting
Movable plate 3,1 top of pedestal offer first sliding groove 4, and 3 bottom of movable plate is equipped with the first sliding block 14, and the first sliding block 14 and first
Sliding slot 4 is cooperatively connected, and offers the first threaded hole 15 on the outside of the first sliding block 14, and first sliding groove 4 is internally provided with threaded rod 5, and
Threaded rod 5 is socketed on inside the first threaded hole 15, and 4 inside one end of first sliding groove is equipped with fixed block 16, and 16 side of fixed block is opened
Equipped with stepped hole 18,5 one end of threaded rod is installed on inside stepped hole 18, and 5 one end of threaded rod, which is located inside stepped hole 18, to be equipped with
Limit plate 17,5 side of threaded rod are equipped with rocking bar 6, and 2 side of fixed plate is provided with drag box 8, and 8 top of drag box is provided with
Sandbox 9,9 two sides of cope are mounted on lug 11, and 2 side of fixed plate offers second sliding slot 10, sets inside second sliding slot 10
It is equipped with the second sliding block 20,20 side of the second sliding block is equipped with limited block 19, shifting chute 12, shifting chute are offered on the outside of fixed plate 2
12 are internally provided with fastening bolt 13, and the second threaded hole 21, and the second threaded hole 21 and fastening are offered on the outside of the second sliding block 20
Bolt 13 is cooperatively connected, and 1 bottom surrounding of pedestal is mounted on universal wheel 7.
A kind of cold core sand casting technique, includes the following steps: step 1, matches sand；Step 2, molding；Step 3, coremaking are made
Type；Step 4, casting；Step 5, knockout；Step 6, polishing processing；Step 7 is examined；
Wherein in above-mentioned step one, type (core) sand is made of roughing sand, bonding agent and additives, and Foundry sand, which is selected, contains mud
Amount less, particle uniformly, shape be round and polygonal sea sand, river sand or mountain sand, roughing sand is added after screening to mulling
It is stirred in machine, bonding agent and additives, bonding agent are added in whipping process clay (unselected clay and bentonite), water glass
Glass sand, closes fatty oil and vegetable oil at resin, is referred to as clay-bonded sand, water-glass sand, resin sand, compound grease sand and vegetable oil sand are
The certain performances for further increasing type (core) sand, often will be added some additives in type (core) sand, as coal dust, sawdust,
Paper pulp.
Wherein in above-mentioned step two, mold and core box are made according to detail drawing, usually using wood or its
He is made metal material, and mold raw material is placed in engraving machine and carries out engraving and is made, brief fabrication cycle, Mold Making
Die size is slightly larger than finished product in journey, prevents fusing metal to mould action to ensure that molten metal doubts solid and contraction, thus anti-
The only cavity in casting process.
Wherein in above-mentioned step three, moulding is the shape chamber that casting is formed using molding sand, and coremaking is formed using core sand
Cast-internal shape, sand core will stay unobstructed exhaust duct, and general exhaust duct is that dry clinker, sand lump or coke are packed among sand core
Carbon is formed, and the exhaust duct of important sand core is squeezed into sand core and formed by spiral steel cuttings, straw rope or special wax wire, and exhaust duct must be sudden and violent
It is exposed at core print, with benefit exhaust and sand removal, sand core, which is hit when sand face is with steel contacts face, will press elder generation, need to beat at fillet and get circle
Sand core is placed in type chamber by angle, and upper drag box is got togather.
Wherein in above-mentioned step four, when casting, should follow high temperature and come out of the stove, and the principle of cast cold will be electric with ladle
In the type made of molten iron injection melted in furnace, when beginning, should be slowly poured, and convenient for alignment cast gate, reduction molten metal is to sand mold
Impact and be conducive to gas and be discharged, subsequent Quick pouring should be poured before soon pouring completely and slowly with preventing cold shut, that is, follow it is slow,
Fastly, principle slowly, the casting bigger for liquid contraction and solidification shrinkage will be in time from cast gate or hot topping after casting.
Wherein in above-mentioned step five, after casting complete, etc. after molten metals solidify completely, remove cast gate with hammer,
And gently most sand on the outside of casting is fallen in shake on the outside of hammering casting, the casting after preliminary treatment is put into shakeout, axis
It is laid particular stress on when rotation and generates centrifugal force, make to be mounted on the shakeout grate bed vibration in support spring, so that casting is driven to be shaken, it is right
Casting carries out thorough knockout processing.
Wherein in above-mentioned step six, by knockout, treated that casting is moved in sand-blasting machine, and pressure is utilized in pipeline
Contracting air makes sand grains carry out high-speed motion, and sand grains is made to wash away cast(ing) surface, carries out preliminary treatment to cast(ing) surface burr, reuses
Grinding wheel or sanding machine remove the burr that cast(ing) surface is difficult to clean off, and keep cast(ing) surface brighter and cleaner.
Wherein in above-mentioned step seven, staff mainly casts the inspection of treated casting to its appearance and lacks
Fall into, observation cast(ing) surface whether there is or not trachoma, Sha Kong, loose, whether there is or not misrun, casting cracks etc. passes through measurer according to drawing data
Casting is measured with instrument instrument, examines casting dimension whether qualified, is entered after castings are carried out antirust treatment
Inventory is put.
According to the above technical scheme, casting ladle, casting tool, the inovulant of stokehold processing, nodulizer etc. use preceding necessary
Sufficiently drying, could use after drying.
According to the above technical scheme, casting personnel must put on work clothes as required, and wear safety goggles, work-yard
Answer unblocked, the unsuitable overfill of molten metal in casting ladle is hurted sb.'s feelings in order to avoid overflowing in conveying and casting.
According to the above technical scheme, should be pleasant by the gas ignition emerged in casting mold in time when casting, in order to avoid due to casting mold
Feel suffocated and generate stomata, and due to gas imperfect combustion and damage human health and pollution air.
According to the above technical scheme, after sand core completes, sand core is placed under 200-250 ° of environment, top-blown method is passed through
Sand core is handled with subaeration.
According to the above technical scheme, after sand core completes, sand core is placed under 200-250 ° of environment, top-blown method is passed through
Sand core is handled with subaeration.
According to the above technical scheme, fixing bolt is provided on the outside of fixed plate 2,1 side of pedestal offers bolt hole, and bottom
Seat 1 is cooperatively connected with fixed plate 2 by fixing bolt and bolt hole, connect pedestal 1 closely with fixed plate 2,
And it is easy for removal and installation.
According to the above technical scheme, 2 side of fixed plate is equipped with knob, and knob outside is socketed with rubber sleeve, outside rubber sleeve
Side is provided with anti-skid chequer, preferably integrally moves convenient for staff to device.
Working principle: 1 top side of pedestal is equipped with fixed plate 2, and 1 top of pedestal is provided with movable plate 3,1 top of pedestal
First sliding groove 4 is offered, 3 bottom of movable plate is equipped with the first sliding block 14, and the first sliding block 14 is cooperatively connected with first sliding groove 4,
The first threaded hole 15 is offered on the outside of first sliding block 14, first sliding groove 4 is internally provided with threaded rod 5, and threaded rod 5 is socketed on
Inside one threaded hole 15,4 inside one end of first sliding groove is equipped with fixed block 16, and 16 side of fixed block offers stepped hole 18, spiral shell
5 one end of rasp bar is installed on inside stepped hole 18, and 5 one end of threaded rod, which is located inside stepped hole 18, is equipped with limit plate 17, threaded rod 5
Side is equipped with rocking bar 6, and 2 side of fixed plate is provided with drag box 8, and drag box 8 is placed in 1 top of pedestal, is shaken by operation
Bar 6 rotates threaded rod 5, and 5 position of threaded rod is fixed in limit plate 17, and the rotation of threaded rod 5 drives the first sliding block 14
It is moved, so that movable plate 3 be made to be moved, movable plate 3 is clamped drag box 8 with fixed plate 2,2 side of fixed plate
Second sliding slot 10 is offered, second sliding slot 10 is internally provided with the second sliding block 20, and 20 side of the second sliding block is equipped with limited block 19,
Shifting chute 12 is offered on the outside of fixed plate 2, shifting chute 12 is internally provided with fastening bolt 13, and is offered on the outside of the second sliding block 20
Two threaded holes 21, and the second threaded hole 21 is cooperatively connected with fastening bolt 13,1 bottom surrounding of pedestal is mounted on universal wheel 7,
Move limited block 19 by mobile second sliding block 20,8 two sides of drag box are fixed in limited block 19, and pass through second
19 position of limited block is fixed with the mating connection of fastening bolt 13 in threaded hole 21, and last staff will be upper by lug 11
Sandbox 9 is placed in 8 top of drag box, and 1 bottom surrounding of pedestal is mounted on universal wheel 7, carries convenient for staff to it
And movement.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of cold core sand casting device, including pedestal (1), fixed plate (2), movable plate (3), first sliding groove (4), threaded rod
(5), rocking bar (6), universal wheel (7), drag box (8), cope (9), second sliding slot (10), lug (11), shifting chute (12), tight
Fixing bolt (13), the first sliding block (14), the first threaded hole (15), fixed block (16), limit plate (17), stepped hole (18), limit
Block (19), the second sliding block (20) and the second threaded hole (21), it is characterised in that: pedestal (1) the top side is equipped with fixation
Plate (2), pedestal (1) top are provided with movable plate (3), and pedestal (1) top offers first sliding groove (4), the shifting
Movable plate (3) bottom is equipped with the first sliding block (14), and the first sliding block (14) and first sliding groove (4) are cooperatively connected, and described first is sliding
It is offered the first threaded hole (15) on the outside of block (14), the first sliding groove (4) is internally provided with threaded rod (5), and threaded rod (5)
It is internal to be socketed on the first threaded hole (15), the internal one end of the first sliding groove (4) is equipped with fixed block (16), the fixed block
(16) side offers stepped hole (18), and described threaded rod (5) one end is installed on stepped hole (18) inside, the threaded rod (5)
One end, which is located inside stepped hole (18), to be equipped with limit plate (17), and threaded rod (5) side is equipped with rocking bar (6), described solid
Fixed board (2) side is provided with drag box (8), and drag box (8) top is provided with cope (9), cope (9) two sides
It is mounted on lug (11), fixed plate (2) side offers second sliding slot (10), setting inside the second sliding slot (10)
Have the second sliding block (20), the second sliding block (20) side is equipped with limited block (19), offers shifting on the outside of the fixed plate (2)
Dynamic slot (12), the shifting chute (12) are internally provided with fastening bolt (13), offer second on the outside of second sliding block (20)
Threaded hole (21), and the second threaded hole (21) and fastening bolt (13) are cooperatively connected, pedestal (1) bottom surrounding is mounted on
Universal wheel (7).
2. a kind of cold core sand casting technique, includes the following steps: step 1, match sand；Step 2, molding；Step 3, coremaking are made
Type；Step 4, casting；Step 5, knockout；Step 6, polishing processing；Step 7 is examined；It is characterized by:
Wherein in above-mentioned step one, type (core) sand is made of roughing sand, bonding agent and additives, and Foundry sand, which is selected, contains mud
Amount less, particle uniformly, shape be round and polygonal sea sand, river sand or mountain sand, roughing sand is added after screening to mulling
It is stirred in machine, bonding agent and additives, bonding agent are added in whipping process clay (unselected clay and bentonite), water glass
Glass sand, closes fatty oil and vegetable oil at resin, is referred to as clay-bonded sand, water-glass sand, resin sand, compound grease sand and vegetable oil sand are
The certain performances for further increasing type (core) sand, often will be added some additives in type (core) sand, as coal dust, sawdust,
Paper pulp；
Wherein in above-mentioned step two, mold and core box are made according to detail drawing, usually using wood or other gold
Belong to material to be made, mold raw material is placed in engraving machine and carries out engraving and is made, brief fabrication cycle, during Mold Making
Die size is slightly larger than finished product, prevents fusing metal to mould action to ensure that molten metal doubts solid and contraction, to prevent
Cavity in casting process；
Wherein in above-mentioned step three, moulding is the shape chamber that casting is formed using molding sand, and coremaking is to form casting using core sand
Interior shape, sand core will stay unobstructed exhaust duct, and general exhaust duct is that dry clinker, sand lump or coke shape are packed among sand core
At the exhaust duct of important sand core is squeezed into sand core and formed by spiral steel cuttings, straw rope or special wax wire, and exhaust duct is necessarily exposed to
At core print, with benefit exhaust and sand removal, sand core, which is hit when sand face is with steel contacts face, will press elder generation, need to beat at fillet and get fillet,
Sand core is placed in type chamber, upper drag box is got togather；
Wherein in above-mentioned step four, when casting, should follow high temperature and come out of the stove, and the principle of cast cold will be in electric furnace with ladle
In the type made of molten iron injection of thawing, when beginning, should be slowly poured, and convenient for alignment cast gate, reduction molten metal rushes sand mold
Hit and be conducive to gas discharge, subsequent Quick pouring, to prevent cold shut, soon pour completely before and should slowly be poured, that is, follow it is slow, fast,
Slow principle, the casting bigger for liquid contraction and solidification shrinkage will be in time from cast gate or hot topping after casting；
Wherein in above-mentioned step five, after casting complete, etc. after molten metals solidify completely, remove cast gate with hammer, and light
Most sand on the outside of casting is fallen in shake on the outside of light hammering casting, and the casting after preliminary treatment is put into shakeout, axis rotation
When lay particular stress on generate centrifugal force, make to be mounted in support spring shakeout grate bed vibration, to drive casting to be shaken, to casting
Carry out thorough knockout processing；
Wherein in above-mentioned step six, by knockout, treated that casting is moved in sand-blasting machine, empty using compression in pipeline
Gas makes sand grains carry out high-speed motion, and sand grains is made to wash away cast(ing) surface, carries out preliminary treatment to cast(ing) surface burr, reuses grinding wheel
Or sanding machine removes the burr that cast(ing) surface is difficult to clean off, and keeps cast(ing) surface brighter and cleaner；
Wherein in above-mentioned step seven, staff to the inspection of treated casting mainly to its appearance casting flaw,
Observe cast(ing) surface whether there is or not trachoma, Sha Kong, it is loose, whether there is or not misrun, casting crack etc., according to drawing data, by measurer and
Whether instrument instrument measures casting, examine casting dimension qualified, is put in storage after castings are carried out antirust treatment
Storage.
3. a kind of cold core sand casting technique according to claim 2, it is characterised in that: the casting ladle, casting tool, stokehold
Inovulant, nodulizer of processing etc. must be dried sufficiently before, could be used after drying.
4. a kind of cold core sand casting technique according to claim 2, it is characterised in that: the casting personnel must be as required
Work clothes to be put on, and wears safety goggles, unblocked, the unsuitable overfill of molten metal in casting ladle is answered in work-yard, in order to avoid defeated
It overflows and hurts sb.'s feelings when sending and being poured.
5. a kind of cold core sand casting device according to claim 1 and casting technique, it is characterised in that: answered when the casting
It is in time that the gas ignition emerged in casting mold is pleasant, it is endless in order to avoid generate stomata since casting mold is felt suffocated, and due to gas
It burns entirely and damages human health and pollution air.
6. a kind of cold core sand casting technique according to claim 2, it is characterised in that:, will after the sand core completes
Sand core is placed under 200-250 ° of environment, handles sand core by top-blown method and subaeration.
7. a kind of cold core sand casting device according to claim 1, it is characterised in that: setting on the outside of the fixed plate (2)
There is fixing bolt, pedestal (1) side offers bolt hole, and pedestal (1) and fixed plate (2) pass through fixing bolt and bolt
Hole is cooperatively connected.
8. a kind of cold core sand casting device according to claim 1, it is characterised in that: fixed plate (2) the side installation
There is knob, rubber sleeve is socketed on the outside of the knob, is provided with anti-skid chequer on the outside of the rubber sleeve.
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| CN110340312A (en) * | 2019-08-26 | 2019-10-18 | 山东庚辰机械科技股份有限公司 | A kind of adjustable fixing device based on the sandbox in foundry shop |
| CN110961607A (en) * | 2019-11-26 | 2020-04-07 | 新昌县益旭龙机械科技有限公司 | Casting equipment for precise lathe body casting of machine tool |
| CN110961575A (en) * | 2019-12-16 | 2020-04-07 | 宁国市铸丰钢球铸造有限公司 | Molding method of sand mold |
| CN112658235A (en) * | 2021-01-12 | 2021-04-16 | 于明见 | Magnet is smelted with preventing splash hot melt stirring and integrative device of grinding apparatus and breaking up |
| CN112719224A (en) * | 2020-12-24 | 2021-04-30 | 安徽永茂泰汽车零部件有限公司 | Manufacturing process for sand core |
| CN113458340A (en) * | 2021-06-22 | 2021-10-01 | 安徽海立精密铸造有限公司 | Method for manufacturing low-gas-evolution core of large-size complex inner cavity part |
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| CN114309465A (en) * | 2021-11-15 | 2022-04-12 | 安徽世轩机械科技有限公司 | Communicating valve casting and preparation method thereof |
| CN115007798A (en) * | 2022-06-15 | 2022-09-06 | 安徽汉扬精密机械有限公司 | Full-automatic horizontal sand casting machine and working method thereof |
| CN116493580A (en) * | 2023-04-10 | 2023-07-28 | 盐城东皇铸造有限公司 | Deoxidization casting device and casting method |
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| CN110961575B (en) * | 2019-12-16 | 2021-07-13 | 宁国市铸丰钢球铸造有限公司 | Molding method of sand mold |
| CN110961575A (en) * | 2019-12-16 | 2020-04-07 | 宁国市铸丰钢球铸造有限公司 | Molding method of sand mold |
| CN112719224A (en) * | 2020-12-24 | 2021-04-30 | 安徽永茂泰汽车零部件有限公司 | Manufacturing process for sand core |
| CN112658235A (en) * | 2021-01-12 | 2021-04-16 | 于明见 | Magnet is smelted with preventing splash hot melt stirring and integrative device of grinding apparatus and breaking up |
| CN113458340A (en) * | 2021-06-22 | 2021-10-01 | 安徽海立精密铸造有限公司 | Method for manufacturing low-gas-evolution core of large-size complex inner cavity part |
| CN113829533A (en) * | 2021-09-07 | 2021-12-24 | 浙江科马摩擦材料股份有限公司 | Production process and processing equipment of environment-friendly high-comfort passenger car clutch facing |
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| CN115007798A (en) * | 2022-06-15 | 2022-09-06 | 安徽汉扬精密机械有限公司 | Full-automatic horizontal sand casting machine and working method thereof |
| CN116493580A (en) * | 2023-04-10 | 2023-07-28 | 盐城东皇铸造有限公司 | Deoxidization casting device and casting method |
| CN117161321A (en) * | 2023-09-09 | 2023-12-05 | 江苏智疆航空科技发展有限公司 | Sand core positioning device for casting and positioning method thereof |
| CN117161321B (en) * | 2023-09-09 | 2024-03-12 | 江苏智疆航空科技发展有限公司 | Foundry sand core positioning device and positioning method thereof |
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