CN108952990A - A kind of high-strength alloy cast-iron head and its production technology - Google Patents
A kind of high-strength alloy cast-iron head and its production technology Download PDFInfo
- Publication number
- CN108952990A CN108952990A CN201810674613.1A CN201810674613A CN108952990A CN 108952990 A CN108952990 A CN 108952990A CN 201810674613 A CN201810674613 A CN 201810674613A CN 108952990 A CN108952990 A CN 108952990A
- Authority
- CN
- China
- Prior art keywords
- sand
- iron
- core
- sliding slot
- alloy cast
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
Abstract
The invention discloses a kind of high-strength alloy cast-iron head and its production technologies, including cylinder head ontology, exhaust duct, water jacket, sliding slot, sliding block, bracket, filter cotton, mounting groove, spring, ball and location hole, cylinder head ontology top side offers exhaust duct, the cylinder head ontology top other side offers air intake duct, the cylinder head body interior is located at air intake duct two sides of the bottom and is mounted on sliding slot, the sliding slot is internally provided with bracket, the internal stent is equipped with filter cotton, the bracket two sides are mounted on sliding block, and sliding block and sliding slot are cooperatively connected, mounting groove is offered inside the sliding slot, the mounting groove interior side is equipped with spring, the spring other end is equipped with ball, location hole is offered on the outside of the sliding block, and ball and location hole are cooperatively connected, the invention, pass through molten iron processed, sand processed Type, casting, deburring are rinsed, and examine, the high intensity of cylinder head is effectively guaranteed.
Description
Technical field
The present invention relates to cylinder head technical field, specially a kind of high-strength alloy cast-iron head and its production technology.
Background technique
The effect of cylinder head is sealing cylinder, combustion space is collectively formed with piston, and bear the work of high-temperature high-pressure fuel gas
Bear mechanical load caused by gas force and fastening bolt cylinder with, cylinder head, while due also to contacted with high-temperature fuel gas and
Very high thermic load is born, in order to guarantee the excellent sealing of cylinder, cylinder head can neither be damaged, and can not be deformed, for this purpose, cylinder
Lid should have enough strength and stiffness.
But existing cylinder head does not have high intensity, it, cannot be to entering gas while when air filtering core is damaged
Air inside cylinder cap is filtered, and cannot prevent dust impurity from entering inside cylinder head, therefore designs a kind of high-strength alloy
Cast-iron head and its production technology are necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of high-strength alloy cast-iron head and its production technologies, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of high-strength alloy cast-iron head, including cylinder head ontology, exhaust duct, air intake duct, water jacket, sliding slot, sliding block, branch
Frame, filter cotton, mounting groove, spring, ball and location hole, cylinder head ontology top side offer exhaust duct, the gas
The cylinder cap ontology top other side offers air intake duct, and the cylinder head body interior is located at air intake duct two sides of the bottom and is mounted on cunning
Slot, the sliding slot are internally provided with bracket, and the internal stent is equipped with filter cotton, and the bracket two sides are mounted on sliding block,
And sliding block and sliding slot are cooperatively connected, and offer mounting groove inside the sliding slot, the mounting groove interior side is equipped with spring, institute
It states the spring other end and ball is installed, location hole is offered on the outside of the sliding block, and ball and location hole are cooperatively connected.
A kind of high-strength alloy cast-iron head production technology, step 1, molten iron processed；Step 2, sand mold processed；Step 3,
Casting；Step 4, deburring；Step 5 is rinsed；Step 6 is examined；
It is respectively as follows: pig iron 60-70%, steel scrap 5-10%, carburant 2-5%, molybdenum-iron 2- according to the weight percent of each raw material
5%, ferrochrome 2-5%, ferrosilicon 5-10%, tin 1-5%, copper 5-10%, high violent 1-5%, and according to above-mentioned weight percent it
It is weighed with for 1；
Wherein in above-mentioned step one, when production, is added portionwise various raw materials from blast furnace roof, and from bottom house air port
Place constantly blasts hot wind, during continuous refining, periodically discharges out of the furnace from cupola well slag iron mouth by slag iron, carries out one with raw material
The coal gas of series effect is overflowed from furnace roof, the molten iron after refining is filtered by filter screen, by solid-state remaining in molten iron
Raw material filters out；
Wherein in above-mentioned step two, uses phenolphthalein resin to be mixed and made into precoated sand as binder and roughing sand, precoated sand is put
Enter and molding sand is made in mold, and handle molding sand using top-blown method and subaeration, keeps molding sand surface brighter and cleaner and raising type core
Intensity mitigates quality and is readily transported, while molding sand is placed in inside sandbox by treated；
Wherein in above-mentioned step three, by the molten iron casting of liquid into sand mold, pouring position should make part quality requirement high
Surface be in bottom surface or side, in order to avoid generate stomata, sand holes, shrinkage cavity the defects of, the big plane of casting should as far as possible downward, to keep away
The defects of exempting from stomata and slag inclusion, burning into sand there are the thicker biggish part of wall should downward, it is edge-on or inclination, to guarantee filling for molten metal
Fill out, at the same require molten metal reach thin-walled at institute it is shorter better through path, to the casting for having sand core, pouring position should ensure that sand
It is convenient that core positioning stablity smooth in exhaust and lower core are examined, while outer core-skin guarantees cylinder cap size using cold core；Jacket core and into row
Airway core uses hot core, guarantees that the intensity of sand core takes out casting after band molten iron is cooling；
Wherein in above-mentioned step four, first by way of shot blasting on surface to the burr of cast(ing) surface and overlap at
Reason, processing rear surface can remain reluctant burr, the burr removed is difficult to using the removal of electric spark method, for deep oil
Burr inside hole uses high pressure water Trimming, using the burr inside the impact force removal hole of rotation water column, finally uses
Nylon bristle carries out overall treatment to casting；
Wherein in above-mentioned step five, is cleaned using grease and cooling oil of the cleaning solution to workpiece surface, make workpiece
It being overturn in cleaning water tank, washer jet cleans workpiece surface with the water flow of compressed air, at not easy cleaning,
Predetermined portion is cleaned by the way of clean in place, it will be residual by using hair dryer blowout high pressure gas after the completion of cleaning
The machining chips for staying in workpiece surface are blown off；
Wherein in above-mentioned step six, cylinder body is measured using leakage measurement method using differential pressure transducer and whether cylinder cover water jacket generates leakage, control is surveyed
The compressed air of certain pressure is poured in pressure testing source into tested part and standard items simultaneously, and test potential source is closed after a period of time,
After stablizing one end time, so that differential pressure gauge is in equilibrium state, compare whether differential pressure gauge numerical value changes after a period of time, examines
Secondary operation can be carried out by testing out underproof workpiece, be repaired, and be waste product if the inspection after repairing is unqualified again.
According to the above technical scheme, the sliding block two sides offer through-hole, are equipped with fixing bolt inside the through-hole,
The stent outer offers threaded hole, and fixing bolt passes through through-hole and threaded hole is cooperatively connected.
According to the above technical scheme, the stent outer and air intake duct junction, which are equipped with, is provided with sealing ring.
According to the above technical scheme, quality of liquid medicine percentage forms are as follows: it is 1400 ° that air-heater, which is blown into hot blast temperature,.
According to the above technical scheme, quality of liquid medicine percentage forms are as follows: after molding sand completes, molding sand is placed in 200-
Under 250 ° of environment, molding sand is handled by top-blown method and subaeration.
According to the above technical scheme, cleaning solution is mixed by alcohol and cleaning agent.
According to the above technical scheme, reinforcing rib is provided on the outside of the water jacket.
Compared with prior art, the beneficial effects of the present invention are: of the invention, filter cotton carries out again the air at air intake duct
The impurity such as the dust in air are got rid of in secondary filtering, guarantee the quality of air, make bracket and cylinder head sheet by sliding slot and sliding block
Body is attached, and is effectively disassembled and installed when repairing in the future to it convenient for staff, is cooperated in sliding slot and sliding block
When connection, ball is ejected by spring force, so that ball and location hole is cooperatively connected, so that sliding block be fixed；
In process of production, by molten iron processed, sand mold processed is poured, deburring the equipment, is rinsed, and examines, gas is effectively guaranteed
The high intensity of cylinder cap.
Detailed description of the invention
Fig. 1 is overall structure figure of the invention；
Fig. 2 is sliding slot installation diagram of the invention；
Fig. 3 is ball installation diagram of the invention；
Fig. 4 is rack mounting structure figure of the invention；
Fig. 5 is production technological process of the invention；
Figure label: 1, cylinder head ontology；2, exhaust duct；3, air intake duct；4, water jacket；5, sliding slot；6, sliding block；7, bracket；8, mistake
Filter pulp；9, mounting groove；10, spring；11, ball；12, location 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. 1-4 is please referred to, the present invention provides, a kind of high-strength alloy cast-iron head, including cylinder head ontology 1, exhaust
Road 2, air intake duct 3, water jacket 4, sliding slot 5, sliding block 6, bracket 7, filter cotton 8, mounting groove 9, spring 10, ball 11 and location hole 12,
1 top side of cylinder head ontology offers exhaust duct 2, and the 1 top other side of cylinder head ontology offers air intake duct 3, cylinder head sheet
Body 1 is internally located at 3 two sides of the bottom of air intake duct and is mounted on sliding slot 5, and sliding slot 5 is internally provided with bracket 7, is equipped with inside bracket 7
Filter cotton 8,7 two sides of bracket are mounted on sliding block 6, and sliding block 6 and sliding slot 5 are cooperatively connected, and offer mounting groove 9 inside sliding slot 5,
9 interior side of mounting groove is equipped with spring 10, and 10 other end of spring is equipped with ball 11, location hole 12 is offered on the outside of sliding block 6,
And ball 11 and location hole 12 are cooperatively connected.
Referring to Fig. 5, a kind of high-strength alloy cast-iron head production technology,
Embodiment 1:
Include the following steps: step 1, molten iron processed；Step 2, sand mold processed；Step 3, casting；Step 4, deburring；Step
Five, it rinses；Step 6 is examined；
The weight percent of each raw material forms are as follows: the pig iron 60%, steel scrap 5%, carburant 5%, molybdenum-iron 5%, ferrochrome 5%, ferrosilicon
5%, tin 5%, copper 5%, height violent 5%；
Wherein in above-mentioned step one, when production, is added portionwise various raw materials from blast furnace roof, and from bottom house air port
Place constantly blasts hot wind, during continuous refining, periodically discharges out of the furnace from cupola well slag iron mouth by slag iron, carries out one with raw material
The coal gas of series effect is overflowed from furnace roof, the molten iron after refining is filtered by filter screen, by solid-state remaining in molten iron
Raw material filters out；
Wherein in above-mentioned step two, uses phenolphthalein resin to be mixed and made into precoated sand as binder and roughing sand, precoated sand is put
Enter and molding sand is made in mold, and handle molding sand using top-blown method and subaeration, keeps molding sand surface brighter and cleaner and raising type core
Intensity mitigates quality and is readily transported, while molding sand is placed in inside sandbox by treated；
Wherein in above-mentioned step three, by the molten iron casting of liquid into sand mold, pouring position should make part quality requirement high
Surface be in bottom surface or side, in order to avoid generate stomata, sand holes, shrinkage cavity the defects of, the big plane of casting should as far as possible downward, to keep away
The defects of exempting from stomata and slag inclusion, burning into sand there are the thicker biggish part of wall should downward, it is edge-on or inclination, to guarantee filling for molten metal
Fill out, at the same require molten metal reach thin-walled at institute it is shorter better through path, to the casting for having sand core, pouring position should ensure that sand
It is convenient that core positioning stablity smooth in exhaust and lower core are examined, while outer core-skin guarantees cylinder cap size using cold core；Jacket core and into row
Airway core uses hot core, guarantees that the intensity of sand core takes out casting after band molten iron is cooling；
Wherein in above-mentioned step four, first by way of shot blasting on surface to the burr of cast(ing) surface and overlap at
Reason, processing rear surface can remain reluctant burr, the burr removed is difficult to using the removal of electric spark method, for deep oil
Burr inside hole uses high pressure water Trimming, using the burr inside the impact force removal hole of rotation water column, finally uses
Nylon bristle carries out overall treatment to casting；
Wherein in above-mentioned step five, is cleaned using grease and cooling oil of the cleaning solution to workpiece surface, make workpiece
It being overturn in cleaning water tank, washer jet cleans workpiece surface with the water flow of compressed air, at not easy cleaning,
Predetermined portion is cleaned by the way of clean in place, it will be residual by using hair dryer blowout high pressure gas after the completion of cleaning
The machining chips for staying in workpiece surface are blown off；
Wherein in above-mentioned step six, cylinder body is measured using leakage measurement method using differential pressure transducer and whether cylinder cover water jacket generates leakage, control is surveyed
The compressed air of certain pressure is poured in pressure testing source into tested part and standard items simultaneously, and test potential source is closed after a period of time,
After stablizing one end time, so that differential pressure gauge is in equilibrium state, compare whether differential pressure gauge numerical value changes after a period of time, examines
Secondary operation can be carried out by testing out underproof workpiece, be repaired, and be waste product if the inspection after repairing is unqualified again.
Embodiment 2:
Include the following steps: step 1, molten iron processed；Step 2, sand mold processed；Step 3, casting；Step 4, deburring；Step
Five, it rinses；Step 6 is examined；
The weight percent of each raw material forms are as follows: the pig iron 65%, steel scrap 5%, carburant 2%, molybdenum-iron 2%, ferrochrome 5%, ferrosilicon
10%, tin 1%, copper 5%, height violent 5%；
Wherein in above-mentioned step one, when production, is added portionwise various raw materials from blast furnace roof, and from bottom house air port
Place constantly blasts hot wind, during continuous refining, periodically discharges out of the furnace from cupola well slag iron mouth by slag iron, carries out one with raw material
The coal gas of series effect is overflowed from furnace roof, the molten iron after refining is filtered by filter screen, by solid-state remaining in molten iron
Raw material filters out；
Wherein in above-mentioned step two, uses phenolphthalein resin to be mixed and made into precoated sand as binder and roughing sand, precoated sand is put
Enter and molding sand is made in mold, and handle molding sand using top-blown method and subaeration, keeps molding sand surface brighter and cleaner and raising type core
Intensity mitigates quality and is readily transported, while molding sand is placed in inside sandbox by treated；
Wherein in above-mentioned step three, by the molten iron casting of liquid into sand mold, pouring position should make part quality requirement high
Surface be in bottom surface or side, in order to avoid generate stomata, sand holes, shrinkage cavity the defects of, the big plane of casting should as far as possible downward, to keep away
The defects of exempting from stomata and slag inclusion, burning into sand there are the thicker biggish part of wall should downward, it is edge-on or inclination, to guarantee filling for molten metal
Fill out, at the same require molten metal reach thin-walled at institute it is shorter better through path, to the casting for having sand core, pouring position should ensure that sand
It is convenient that core positioning stablity smooth in exhaust and lower core are examined, while outer core-skin guarantees cylinder cap size using cold core；Jacket core and into row
Airway core uses hot core, guarantees that the intensity of sand core takes out casting after band molten iron is cooling；
Wherein in above-mentioned step four, first by way of shot blasting on surface to the burr of cast(ing) surface and overlap at
Reason, processing rear surface can remain reluctant burr, the burr removed is difficult to using the removal of electric spark method, for deep oil
Burr inside hole uses high pressure water Trimming, using the burr inside the impact force removal hole of rotation water column, finally uses
Nylon bristle carries out overall treatment to casting；
Wherein in above-mentioned step five, is cleaned using grease and cooling oil of the cleaning solution to workpiece surface, make workpiece
It being overturn in cleaning water tank, washer jet cleans workpiece surface with the water flow of compressed air, at not easy cleaning,
Predetermined portion is cleaned by the way of clean in place, it will be residual by using hair dryer blowout high pressure gas after the completion of cleaning
The machining chips for staying in workpiece surface are blown off；
Wherein in above-mentioned step six, cylinder body is measured using leakage measurement method using differential pressure transducer and whether cylinder cover water jacket generates leakage, control is surveyed
The compressed air of certain pressure is poured in pressure testing source into tested part and standard items simultaneously, and test potential source is closed after a period of time,
After stablizing one end time, so that differential pressure gauge is in equilibrium state, compare whether differential pressure gauge numerical value changes after a period of time, examines
Secondary operation can be carried out by testing out underproof workpiece, be repaired, and be waste product if the inspection after repairing is unqualified again.
Embodiment 3:
Include the following steps: step 1, molten iron processed；Step 2, sand mold processed；Step 3, casting；Step 4, deburring；Step
Five, it rinses；Step 6 is examined；
The weight percent of each raw material forms are as follows: the pig iron 70%, steel scrap 5%, carburant 2%, molybdenum-iron 2%, ferrochrome 5%, ferrosilicon
5%, tin 1%, copper 5%, height violent 5%；
Wherein in above-mentioned step one, when production, is added portionwise various raw materials from blast furnace roof, and from bottom house air port
Place constantly blasts hot wind, during continuous refining, periodically discharges out of the furnace from cupola well slag iron mouth by slag iron, carries out one with raw material
The coal gas of series effect is overflowed from furnace roof, the molten iron after refining is filtered by filter screen, by solid-state remaining in molten iron
Raw material filters out；
Wherein in above-mentioned step two, uses phenolphthalein resin to be mixed and made into precoated sand as binder and roughing sand, precoated sand is put
Enter and molding sand is made in mold, and handle molding sand using top-blown method and subaeration, keeps molding sand surface brighter and cleaner and raising type core
Intensity mitigates quality and is readily transported, while molding sand is placed in inside sandbox by treated；
Wherein in above-mentioned step three, by the molten iron casting of liquid into sand mold, pouring position should make part quality requirement high
Surface be in bottom surface or side, in order to avoid generate stomata, sand holes, shrinkage cavity the defects of, the big plane of casting should as far as possible downward, to keep away
The defects of exempting from stomata and slag inclusion, burning into sand there are the thicker biggish part of wall should downward, it is edge-on or inclination, to guarantee filling for molten metal
Fill out, at the same require molten metal reach thin-walled at institute it is shorter better through path, to the casting for having sand core, pouring position should ensure that sand
It is convenient that core positioning stablity smooth in exhaust and lower core are examined, while outer core-skin guarantees cylinder cap size using cold core；Jacket core and into row
Airway core uses hot core, guarantees that the intensity of sand core takes out casting after band molten iron is cooling；
Wherein in above-mentioned step four, first by way of shot blasting on surface to the burr of cast(ing) surface and overlap at
Reason, processing rear surface can remain reluctant burr, the burr removed is difficult to using the removal of electric spark method, for deep oil
Burr inside hole uses high pressure water Trimming, using the burr inside the impact force removal hole of rotation water column, finally uses
Nylon bristle carries out overall treatment to casting；
Wherein in above-mentioned step five, is cleaned using grease and cooling oil of the cleaning solution to workpiece surface, make workpiece
It being overturn in cleaning water tank, washer jet cleans workpiece surface with the water flow of compressed air, at not easy cleaning,
Predetermined portion is cleaned by the way of clean in place, it will be residual by using hair dryer blowout high pressure gas after the completion of cleaning
The machining chips for staying in workpiece surface are blown off；
Wherein in above-mentioned step six, cylinder body is measured using leakage measurement method using differential pressure transducer and whether cylinder cover water jacket generates leakage, control is surveyed
The compressed air of certain pressure is poured in pressure testing source into tested part and standard items simultaneously, and test potential source is closed after a period of time,
After stablizing one end time, so that differential pressure gauge is in equilibrium state, compare whether differential pressure gauge numerical value changes after a period of time, examines
Secondary operation can be carried out by testing out underproof workpiece, be repaired, and be waste product if the inspection after repairing is unqualified again.
Based on above-mentioned, it is an advantage of the current invention that of the invention, filter cotton 8 carries out mistake again to the air at air intake duct 3
Filter, gets rid of the impurity such as the dust in air, guarantees the quality of air, make bracket 7 and cylinder head sheet by sliding slot 5 and sliding block 6
Body 1 is attached, and is effectively disassembled and installed when repairing in the future to it convenient for staff, is matched in sliding slot 5 and sliding block 6
When closing connection, ball 11 is ejected by 10 elastic force of spring, ball 11 and location hole 12 is made to be cooperatively connected, thus to sliding block 6 into
Row is fixed.
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 high-strength alloy cast-iron head, including cylinder head ontology (1), exhaust duct (2), air intake duct (3), water jacket (4),
Sliding slot (5), sliding block (6), bracket (7), filter cotton (8), mounting groove (9), spring (10), ball (11) and location hole (12),
Be characterized in that: cylinder head ontology (1) the top side offers exhaust duct (2), cylinder head ontology (1) the top other side
It offers air intake duct (3), the cylinder head ontology (1) is internally located at air intake duct (3) two sides of the bottom and is mounted on sliding slot (5), institute
It states sliding slot (5) to be internally provided with bracket (7), be equipped with filter cotton (8) inside the bracket (7), bracket (7) two sides are pacified
Equipped with sliding block (6), and sliding block (6) and sliding slot (5) are cooperatively connected, and offer mounting groove (9), the peace inside the sliding slot (5)
Tankage (9) interior side is equipped with spring (10), and spring (10) other end is equipped with ball (11), and the sliding block (6) is outside
Side offers location hole (12), and ball (11) and location hole (12) are cooperatively connected.
2. a kind of high-strength alloy cast-iron head production technology includes the following steps: step 1, molten iron processed；Step 2, sand processed
Type；Step 3, casting；Step 4, deburring；Step 5 is rinsed；Step 6 is examined；It is characterized by:
It is respectively as follows: pig iron 60-70%, steel scrap 5-10%, carburant 2-5%, molybdenum-iron 2- according to the weight percent of each raw material
5%, ferrochrome 2-5%, ferrosilicon 5-10%, tin 1-5%, copper 5-10%, high violent 1-5%, and according to above-mentioned weight percent it
It is weighed with for 1；
Wherein in above-mentioned step one, when production, is added portionwise various raw materials from blast furnace roof, and from bottom house air port
Place constantly blasts hot wind, during continuous refining, periodically discharges out of the furnace from cupola well slag iron mouth by slag iron, carries out one with raw material
The coal gas of series effect is overflowed from furnace roof, the molten iron after refining is filtered by filter screen, by solid-state remaining in molten iron
Raw material filters out；
Wherein in above-mentioned step two, uses phenolphthalein resin to be mixed and made into precoated sand as binder and roughing sand, precoated sand is put
Enter and molding sand is made in mold, and handle molding sand using top-blown method and subaeration, keeps molding sand surface brighter and cleaner and raising type core
Intensity mitigates quality and is readily transported, while molding sand is placed in inside sandbox by treated；
Wherein in above-mentioned step three, by the molten iron casting of liquid into sand mold, pouring position should make part quality requirement high
Surface be in bottom surface or side, in order to avoid generate stomata, sand holes, shrinkage cavity the defects of, the big plane of casting should as far as possible downward, to keep away
The defects of exempting from stomata and slag inclusion, burning into sand there are the thicker biggish part of wall should downward, it is edge-on or inclination, to guarantee filling for molten metal
Fill out, at the same require molten metal reach thin-walled at institute it is shorter better through path, to the casting for having sand core, pouring position should ensure that sand
It is convenient that core positioning stablity smooth in exhaust and lower core are examined, while outer core-skin guarantees cylinder cap size using cold core；Jacket core and into row
Airway core uses hot core, guarantees that the intensity of sand core takes out casting after band molten iron is cooling；
Wherein in above-mentioned step four, first by way of shot blasting on surface to the burr of cast(ing) surface and overlap at
Reason, processing rear surface can remain reluctant burr, the burr removed is difficult to using the removal of electric spark method, for deep oil
Burr inside hole uses high pressure water Trimming, using the burr inside the impact force removal hole of rotation water column, finally uses
Nylon bristle carries out overall treatment to casting；
Wherein in above-mentioned step five, is cleaned using grease and cooling oil of the cleaning solution to workpiece surface, make workpiece
It being overturn in cleaning water tank, washer jet cleans workpiece surface with the water flow of compressed air, at not easy cleaning,
Predetermined portion is cleaned by the way of clean in place, it will be residual by using hair dryer blowout high pressure gas after the completion of cleaning
The machining chips for staying in workpiece surface are blown off；
Wherein in above-mentioned step six, cylinder body is measured using leakage measurement method using differential pressure transducer and whether cylinder cover water jacket generates leakage, control is surveyed
The compressed air of certain pressure is poured in pressure testing source into tested part and standard items simultaneously, and test potential source is closed after a period of time,
After stablizing one end time, so that differential pressure gauge is in equilibrium state, compare whether differential pressure gauge numerical value changes after a period of time, examines
Secondary operation can be carried out by testing out underproof workpiece, be repaired, and be waste product if the inspection after repairing is unqualified again.
3. a kind of high-strength alloy cast-iron head according to claim 1, it is characterised in that: open sliding block (6) two sides
Equipped with through-hole, fixing bolt is installed inside the through-hole, offers threaded hole on the outside of the bracket (7), and fixing bolt is worn
It crosses through-hole and threaded hole is cooperatively connected.
4. a kind of high-strength alloy cast-iron head according to claim 1, it is characterised in that: on the outside of the bracket (7) with into
Air flue (3) junction, which is equipped with, is provided with sealing ring.
5. a kind of high-strength alloy cast-iron head production technology according to claim 2, it is characterised in that: air-heater is blown into heat
Air temperature is 1400 °.
6. a kind of high-strength alloy cast-iron head production technology according to claim 2, it is characterised in that: molding sand completes
Afterwards, molding sand is placed under 200-250 ° of environment, molding sand is handled by top-blown method and subaeration.
7. a kind of high-strength alloy cast-iron head production technology according to claim 2, it is characterised in that: cleaning solution is to pass through
Alcohol and cleaning agent mix.
8. a kind of high-strength alloy cast-iron head according to claim 1, it is characterised in that: setting on the outside of the water jacket (4)
There is reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674613.1A CN108952990A (en) | 2018-06-27 | 2018-06-27 | A kind of high-strength alloy cast-iron head and its production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810674613.1A CN108952990A (en) | 2018-06-27 | 2018-06-27 | A kind of high-strength alloy cast-iron head and its production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108952990A true CN108952990A (en) | 2018-12-07 |
Family
ID=64487191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810674613.1A Pending CN108952990A (en) | 2018-06-27 | 2018-06-27 | A kind of high-strength alloy cast-iron head and its production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108952990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687881A (en) * | 2022-03-05 | 2022-07-01 | 盐城舜拓机械有限公司 | Integral sealed agricultural machinery cylinder cover and preparation process thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005118862A (en) * | 2003-10-20 | 2005-05-12 | Nissan Motor Co Ltd | Device for molding sand core, and cylinder head |
| EP1548263A1 (en) * | 2003-10-20 | 2005-06-29 | Nissan Motor Co., Ltd. | Partition plate for intake port, sand core for forming intake port, and cylinder head |
| CN103480816A (en) * | 2012-06-12 | 2014-01-01 | 安庆中船柴油机有限公司 | Casting process for cylinder cover of marine air cylinder |
| CN105382242A (en) * | 2015-12-30 | 2016-03-09 | 上海爱仕达汽车零部件有限公司 | Casting process of cylinder cover |
| CN105755359A (en) * | 2016-02-29 | 2016-07-13 | 昆明云内动力股份有限公司 | Production technology of material applicable to cylinder body and cylinder cover of diesel engine |
| CN106311983A (en) * | 2016-08-31 | 2017-01-11 | 侯马市威创动力机械有限公司 | Method for producing cylinder cover by means of iron mold coated sand technology |
| CN106799463A (en) * | 2016-12-20 | 2017-06-06 | 广西玉柴机器配件制造有限公司 | A kind of production method of Iron Mould Coated Sand cast cylinder head |
| CN108127348A (en) * | 2017-12-28 | 2018-06-08 | 滁州兴达机电有限公司 | A kind of manufacturing process of the sealed cylinder head of engine |
-
2018
- 2018-06-27 CN CN201810674613.1A patent/CN108952990A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005118862A (en) * | 2003-10-20 | 2005-05-12 | Nissan Motor Co Ltd | Device for molding sand core, and cylinder head |
| EP1548263A1 (en) * | 2003-10-20 | 2005-06-29 | Nissan Motor Co., Ltd. | Partition plate for intake port, sand core for forming intake port, and cylinder head |
| CN103480816A (en) * | 2012-06-12 | 2014-01-01 | 安庆中船柴油机有限公司 | Casting process for cylinder cover of marine air cylinder |
| CN105382242A (en) * | 2015-12-30 | 2016-03-09 | 上海爱仕达汽车零部件有限公司 | Casting process of cylinder cover |
| CN105755359A (en) * | 2016-02-29 | 2016-07-13 | 昆明云内动力股份有限公司 | Production technology of material applicable to cylinder body and cylinder cover of diesel engine |
| CN106311983A (en) * | 2016-08-31 | 2017-01-11 | 侯马市威创动力机械有限公司 | Method for producing cylinder cover by means of iron mold coated sand technology |
| CN106799463A (en) * | 2016-12-20 | 2017-06-06 | 广西玉柴机器配件制造有限公司 | A kind of production method of Iron Mould Coated Sand cast cylinder head |
| CN108127348A (en) * | 2017-12-28 | 2018-06-08 | 滁州兴达机电有限公司 | A kind of manufacturing process of the sealed cylinder head of engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114687881A (en) * | 2022-03-05 | 2022-07-01 | 盐城舜拓机械有限公司 | Integral sealed agricultural machinery cylinder cover and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106825438B (en) | A kind of casting method of bevel housing | |
| CN102717030B (en) | Precision casting method for thick-wall base aluminium alloy casting | |
| CN106086539A (en) | A kind of processing technology of valve mechanism cover | |
| CN103447462A (en) | Manufacturing process of intermediate casting of diesel engine | |
| CN109108221A (en) | The production technology of fast opening and closing power station exhaust check valve casting | |
| CN101585078A (en) | Method for casting as-cast high-tenacity cast iron bearing cover of locomotive | |
| CN102228956A (en) | Precision fire mould casting process of series sliding bed bedplates for turnouts of high-speed railway lines for passenger transport and special die | |
| CN109676084A (en) | A kind of cold core sand casting device and casting technique | |
| CN108952990A (en) | A kind of high-strength alloy cast-iron head and its production technology | |
| CN111842401A (en) | Remanufacturing production method of transmission | |
| CN102451904B (en) | Casting method of body casting of centrifugal air compressor | |
| CN204912720U (en) | High speed train cast aluminium gear box box metal -mould low pressure casting filter screen | |
| CN103909229B (en) | Diesel engine cylinder cover casting technique | |
| CN207656084U (en) | A kind of laser welding head | |
| CN102441643A (en) | Lost-foam casting production process combined with thermal spraying surface treatment | |
| CN108188346A (en) | A kind of sand casting production process | |
| CN110090916A (en) | The control method of surface defect during one seed nucleus main pump shell cast | |
| Xiao et al. | Numerical simulation and optimization of investment casting for complex thin-walled castings | |
| CN106583649A (en) | Casting process for casting motorcycle engine cylinder block | |
| CN2614338Y (en) | Stick resistant protector for water jacket of charging opening of bottom blowing furnace | |
| CN207430541U (en) | A kind of cyclone dust collectors | |
| CN106216936A (en) | A kind of restorative procedure of Mg alloy castings | |
| CN113042689A (en) | Casting process of ferrous metal casting | |
| CN109487177A (en) | Straightening plate with high-strength wear-resistant alloy steel | |
| CN216869185U (en) | Bottom blowing furnace charge door protector |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |