CN107138687B - A kind of moulding process of compresser cylinder - Google Patents
A kind of moulding process of compresser cylinder Download PDFInfo
- Publication number
- CN107138687B CN107138687B CN201710262769.4A CN201710262769A CN107138687B CN 107138687 B CN107138687 B CN 107138687B CN 201710262769 A CN201710262769 A CN 201710262769A CN 107138687 B CN107138687 B CN 107138687B
- Authority
- CN
- China
- Prior art keywords
- parts
- ontology
- moulding process
- molding
- sand
- 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.)
- Active
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of moulding process of compresser cylinder, its key points of the technical solution are that moulding process includes following step, step 1：Raw material is uniformly mixed in batch mixer and is melted under high temperature, heat preservation is stood；Step 2：Moulding is added into sand core in raw material after standing, and sand core selects alkali formula phenol resin sand, the surface of the molding sand to use chrome ore；Step 3：Water cooling is carried out after moulding, cooling time is 900 ~ 950 seconds；Step 4：The molding sand model of body surface is removed after molding；Step 5：Upper surface, lower surface and the axis hole of ontology carry out preliminary roughing；Step 6：It is finished by the upper surface, lower surface and axis hole of rough machined ontology；Step 7：The environmentally friendly enamelled coating of side wall coating of ontology after molding, air-dries.The process control of technological operation entirety is stringent, enables to the quality of ontology high-quality, effectively reduces the stomata of body surface, reduces rejection rate.
Description
Technical field
The present invention relates to field of air compressor, more particularly to a kind of moulding process of air compressor cylinder.
Background technology
Air compressor is commonly used for the industries such as machinery, chemical industry, traffic, is even applied in family now, compressor
The most universal with piston type, it can get high pressure, and simple in structure, process and easy to maintenance.
In piston compressor, the compression step by step of gas is completed in cylinder and piston cooperation, and piston makees high speed in the cylinder
It moves back and forth, thus requires should have good surface in cylinder, in favor of lubrication and wear-resisting, and to have good cooling, part
There is good craftsmanship, it is indeformable, it does not crack, it is reasonable for structure.
Publication No. is that the Chinese patent of 102268587 A of CN discloses a kind of boron phosphor alloy for air compressor cylinder body
Cast iron and its casting technique, it is disclosed that manufacturing process includes raw and auxiliary material-pig iron, steel scrap-electro-smelting-tap a blast furnace it is pregnant
It educates, current-following inoculation-filtering cast-finished product cylinder block.
A kind of compresser cylinder as shown in Figure 1, including ontology 1, there are two axis holes 2 for setting on ontology 1.In actual life
In production processing, using above-mentioned casting technique when being poured into a mould, molten metal generates sand core violent heat effect, makes mold cavity surface
Layer of sand be heated rapidly to the temperature of crystal metal, due to the evaporation of moisture, the burning and volatilization of organic matter form largely
Gas, a portion gas can be by ventilative sand core runaways, some may enter in molten metal, work as ontology
When solidification, stomata will be being formed close to the surface of ontology, cause waste product.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of moulding process of compresser cylinder,
There is higher qualification rate using the molding compresser cylinder of the moulding process.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of moulding process of compresser cylinder, it is characterized in that：The moulding process includes following step,
Step 1：Raw material is uniformly mixed in batch mixer and is melted under high temperature, heat preservation is stood；
Step 2：It stands the raw material after melting and moulding contoured body is added into sand core, sand core selects alkali formula phenolic resin
The surface of sand, the molding sand uses chrome ore；
Step 3：Water cooling is carried out after moulding, cooling time is 900~950 seconds；
Step 4：The molding sand model of body surface is removed after molding；
Step 5：Upper surface, lower surface and the axis hole of ontology carry out preliminary roughing；
Step 6：It is finished by the upper surface, lower surface and axis hole of rough machined ontology；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology after molding, air-dries.
Through the above technical solutions, uniformly mixed raw material is melted at high temperature first, then the effect melted compares
It is excellent, and keep the temperature to stand and the portion gas in material is enabled to overflow, the presence for reducing gas causes ontology stomata occur
Phenomenon；Then moulding in molding sand is added in the raw material after melting, and molding sand selects the good fluidity of alkali formula phenol resin sand molding sand, is not required to
Tamping tool consolidation saves a large amount of time, and the intensity of resin sand core is high, good moldability, and gas forming amount is compared with other organic castings
Part is low, and thermal stability is good, and gas permeability is high, can greatly reduce the castings such as scab, burning into sand, sand holes, stomata, shrinkage cavity, the crackle of casting
Part defect reduces rejection rate, and the recycling of old sand is also easier；Chrome ore can be kept away to a certain extent in casting process
Exempt from the phenomenon that cast(ing) surface is stained with sand, then molding cast(ing) surface is relatively smooth；The comparison of cooling time control is reasonable, Er Qiexuan
With water cooling, then can avoid it is cooling it is too fast caused by spoken parts in traditional operas tilt big phenomenon；After molding one side of environmentally friendly enamelled coating is coated on surface
Just can wearability, on the other hand play the function and effect of antirust.
The present invention is further arranged to：Processing raw material in step 1 includes the content of following weight percent, and steel scrap 40~
50, C 3.0~3.2, Si 1.8~1.9, Mn 1.0~1.2, P≤0.014, S 0.06~0.08, Cr 0.2~0.3, Y
0.05-0.25, Mg 0.05, remaining be Fe.
Through the above technical solutions, the metal that the steel scrap work in-process selected using on the one hand having the feature of environmental protection, in addition adds
Yttrium is high to the affinity of oxygen and sulphur, while can improve the property of other alloys so that silicon, manganese, chromium and iron intensity can
It increases, the mass percent of the manganese then controlled is relatively low, the high stability of system, then the mass fraction of sulphur and phosphorus
Control is stringent, can reduce the scaling loss of nodularization element, reduces plasticity and toughness, the content for the magnesium being then added is relatively low, can subtract
The generation of few stomata.
The present invention is further arranged to：Melt temperature in step 1 is 1300~1400 DEG C.
Enable to the structural strength of molding product suitable within the scope of this through the above technical solutions, the temperature melted is selected in
When.
The present invention is further arranged to：It is 2 also to contain weight part ratio in chrome ore in step 2：1 tung oil and sodium base is swollen
Profit soil.
Through the above technical solutions, tung oil has, fast drying, light specific gravity, glossiness be good, strong adhesive force, heat-resisting acidproof, resistance to
Alkali, anti-corrosion, antirust, nonconducting characteristic, widely used, the tung oil of addition enables to sand core sizing fast；Then the sodium being added
Base bentonite sodium bentonite is with cohesive force is strong, plasticity is high, demoulding is good, gas permeability is excellent, physico under high temperature hygrometric state condition
The features such as performance is stablized is learned, and durability is good, when sodium bentonite and the common addition of tung oil can increase chromium in chrome ore
The stability of ore in sand form, and it reduces ontology cavitations caused by the residual of gas.
The present invention is further arranged to：The surface of the chrome ore applies and has spilt cryolite powder.
Through the above technical solutions, cryolite powder is acted on water at high temperature, capture the partial moisture in sand core, generates anti-
The very strong hydrogen fluoride of type is answered, to reduce the gas being free in molten iron, prevents the generation of subcutaneous blowhole；And ice crystal is in height
It can be analyzed to sodium fluoride and aluminum trifluoride under temperature, aluminum trifluoride is discharged in gas, reaches an air in 1290 DEG C of its vapour pressures
Pressure, can prevent the intrusion of air, reduce the generation of invasive gas；Ice crystal can dissolve the oxidation film in molten iron, protection
Molten iron is not oxidized, while viscous glutinous phenomenon when coordinating sodium bentonite that can improve demoulding, and reduces the generation of stomata, wherein
Sodium bentonite enables to chrome ore sand permeability to enhance so that gas overflowing, and the cooperation of ice crystal part enables to chrome ore
The surface of sand forms oxidation film, then when gas content, the gas entered in molten metal is few, and molding ontology stomata is just few,
High yield rate.
The present invention is further arranged to：Environmentally friendly enamelled coating includes the component of following parts by weight, 4~6 parts of stones in step 7
Ink, 4~6 parts of molybdenum disulfide, 10~15 parts of talcum powder, 10~15 parts of tung oil, 8~10 parts of chlorinated paraffins, 3~6 parts of hexamethyl fibres
Dimension element, 30~32 parts of epoxy resin, 10~15 parts of ethylene glycol, 1~2 part of sodium hydroxide, 15~20 parts of fluorocarbon resins, 1~2 part
Thickener.
Through the above technical solutions, graphite is capable of the wear-resisting property of environmentally friendly enamelled coating；Then the molybdenum disulfide being added has excellent
Good kollag, good dispersion can enhance the mixing uniformity of environmentally friendly enamelled coating, antifriction, and increasing rubs, anti-oxidation effect effect
Fruit；On the one hand talcum powder can reduce the utilization of raw material as filler, on the other hand can play so that environmentally friendly enamelled coating dispersion
Uniform function and effect, and the concave-convex place of particle surface can be filled and led up as farinose material, improve the table of coating by talcum powder
Face pattern improves the water resistance of coating；The tung oil of addition can play the function and effect of excellent antirust；Chlorinated paraffin, which has, to be changed
Excellent in stability is learned, there is moisture-proof, antistatic, anti-softening, incompressible, low-volatile performance；Hexamethyl cellulose can apply
Thickening, suspension, dispersion, emulsification, bonding, film forming, the characteristic for protecting moisture are played in material, enable to environmentally friendly enamelled coating after application
Rapid dry, paint film is solid, durable；It is directly Nian Jie secured with cylinder that the addition of epoxy resin can increase environmentally friendly enamelled coating
Property so that environmentally friendly enamelled coating is not easily to fall off；Film forming matter in coating can be dissolved or be separated into homogeneous liquid by ethylene glycol, so as to
It is indulged in construction, plays the effect of thickening with sodium hydroxide interaction after construction；Fluorocarbon resin is using firm C-F as bone
Frame, compared with other resins, heat resistance, chemical-resistant, cold resistance, low temperature flexibility, weatherability and electrical property etc. are preferable,
And due to its good crystallinity, therefore with not adhesion, non-wettability；The addition of thickener can thicken environmental protection paint.
The present invention is further arranged to：The thickener selects comb polyurethane association thickener.
Through the above technical solutions, comb polyurethane association thickener refers to by the hydrophobic of centre alkyl containing different length
Property glycol be introduced into the pre- collective's chain of polyurethane, obtain in a series of segments the comb polyurethane association type thickening with pendent group
Agent, the carbon atom number of in-between alkyl segment increase, association enhancing, so that thickening effect improves.
The present invention is further arranged to：Further include having 1~4 part of polyurethane levelling agent in the component.
Through the above technical solutions, polyurethane levelling agent can provide outstanding shear viscosity, there is excellent flowing, stream
Levelling.
In conclusion the present invention having the beneficial effect that in contrast to the prior art：
1, the process control of technological operation entirety is stringent, enables to the quality of finished product high-quality, effectively reduces this body surface
The stomata in face, to reduce rejection rate；
2, process raw material middle selection the molding ontology hardness of raw material it is enough, and excellent wear-resisting property；
3, its adhesion property between ontology of the environmentally friendly enamelled coating of product surface coating is excellent, can enhance the wear-resisting of ontology
Property, prolong the service life.
Description of the drawings
Fig. 1 is the compressor air cylinder structure figure of embodiment.
Reference numeral：1, ontology；2, axis hole.
Specific implementation mode
Invention is further described in detail with reference to embodiments.
Embodiment 1
A kind of moulding process of compresser cylinder, including following step,
Step 1：By steel scrap 4000kg, 300 ㎏ of carbon, 180 ㎏ of silicon, manganese double centner, 1.4 ㎏ of phosphorus, 6 ㎏ of sulphur, 20 ㎏ of chromium, yttrium 5
The raw material of ㎏, 5 ㎏ of magnesium, 5837.6 ㎏ of iron are uniformly mixed in batch mixer and melt at a high temperature of 1300 DEG C；
Step 2：Moulding contoured body 1 is added into sand core in raw material after thawing, and molding sand selects alkali formula phenol resin sand,
The surface of alkali formula phenol resin sand uses chrome ore, containing 2 parts of tung oil in chrome ore, 1 part of sodium bentonite, chrome ore
Surface applies and has spilt cryolite powder；
Step 3：Water cooling is carried out after moulding, cooling time is 900 seconds；
Step 4：The molding sand model on 1 surface of ontology is removed after molding；
Step 5：Upper surface, lower surface and the axis hole 2 of ontology 1 carry out preliminary roughing；
Step 6：It is finished by the upper surface of rough machined ontology 1, lower surface and axis hole 2；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology 1 after molding, air-dries, and environmentally friendly enamelled coating includes 4 parts of graphite, 4 part two
Molybdenum sulfide, 10 parts of talcum powder, 10 parts of tung oil, 8 parts of chlorinated paraffins, 3 parts of hexamethyl celluloses, 30 parts of epoxy resin, 10 parts of second two
Alcohol, 1 part of sodium hydroxide, 15 parts of fluorocarbon resins, 1 part of comb polyurethane association thickener, 1 part of polyurethane levelling agent.
Embodiment 2
A kind of moulding process of compresser cylinder, including following step,
Step 1：By steel scrap 4200kg, 305 ㎏ of carbon, silicon 182 ㎏, manganese 104kg, 1.4 ㎏ of phosphorus, 6.5 ㎏ of sulphur, 22 ㎏ of chromium, yttrium
The raw material of 10 ㎏, 5 ㎏ of magnesium, 5175.5 ㎏ of iron are uniformly mixed in batch mixer and melt at a high temperature of 1300 DEG C；
Step 2：Moulding contoured body 1 is added into sand core in raw material after thawing, and molding sand selects alkali formula phenol resin sand,
The surface of alkali formula phenol resin sand uses chrome ore, containing 2 parts of tung oil in chrome ore, 1 part of sodium bentonite, chrome ore
Surface applies and has spilt cryolite powder；
Step 3：Water cooling is carried out after moulding, cooling time is 910 seconds；
Step 4：The molding sand model on 1 surface of ontology is removed after molding；
Step 5：Upper surface, lower surface and the axis hole 2 of ontology 1 carry out preliminary roughing；
Step 6：It is finished by the upper surface of rough machined ontology 1, lower surface and axis hole 2；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology 1 after molding, air-dries, and environmentally friendly enamelled coating includes 5 parts of graphite, 5 part two
Molybdenum sulfide, 11 parts of talcum powder, 11 parts of tung oil, 9 parts of chlorinated paraffins, 4 parts of hexamethyl celluloses, 31 parts of epoxy resin, 12 parts of second two
Alcohol, 2 parts of sodium hydroxides, 16 parts of fluorocarbon resins, 1 part of comb polyurethane association thickener, 1 part of polyurethane levelling agent.
Embodiment 3
A kind of moulding process of compresser cylinder, including following step,
Step 1：By steel scrap 4400kg, 310 ㎏ of carbon, 196 ㎏ of silicon, 105 kilograms of manganese, 1.4 ㎏ of phosphorus, 6.8 ㎏ of sulphur, 24 ㎏ of chromium,
The raw material of 15 ㎏ of yttrium, 5 ㎏ of magnesium, 4936.8 ㎏ of iron are uniformly mixed in batch mixer and melt at a high temperature of 1240 DEG C；
Step 2：Moulding contoured body 1 is added into sand core in raw material after thawing, and molding sand selects alkali formula phenol resin sand,
The surface of alkali formula phenol resin sand uses chrome ore, containing 2 parts of tung oil in chrome ore, 1 part of sodium bentonite, chrome ore
Surface applies and has spilt cryolite powder；
Step 3：Water cooling is carried out after moulding, cooling time is 930 seconds；
Step 4：The molding sand model on 1 surface of ontology is removed after molding；
Step 5：Upper surface, lower surface and the axis hole 2 of ontology 1 carry out preliminary roughing；
Step 6：It is finished by the upper surface of rough machined ontology 1, lower surface and axis hole 2, is molded compressor gas
Cylinder；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology 1 after molding, it includes 4 parts of graphite, 4 part of two sulphur to air-dry environmental protection enamelled coating
Change molybdenum, 13 parts of talcum powder, 13 parts of tung oil, 8 parts of chlorinated paraffins, 4 parts of hexamethyl celluloses, 30 parts of epoxy resin, 13 parts of second two
Alcohol, 1 part of sodium hydroxide, 16 parts of fluorocarbon resins, 1 part of comb polyurethane association thickener, 2 parts of polyurethane levelling agents.
Embodiment 4
A kind of moulding process of compresser cylinder, including following step,
Step 1：By steel scrap 4800kg, 315 ㎏ of carbon, 188 ㎏ of silicon, 115 kilograms of manganese, 1.4 ㎏ of phosphorus, 7 ㎏ of sulphur, 28 ㎏ of chromium, yttrium
The raw material of 20 ㎏, 5 ㎏ of magnesium, 4479.4 ㎏ of iron are uniformly mixed in batch mixer and melt at a high temperature of 1360 DEG C；
Step 2：Moulding contoured body 1 is added into sand core in raw material after thawing, and molding sand selects alkali formula phenol resin sand,
The surface of alkali formula phenol resin sand uses chrome ore, containing 2 parts of tung oil in chrome ore, 1 part of sodium bentonite, chrome ore
Surface applies and has spilt cryolite powder；
Step 3：Water cooling is carried out after moulding, cooling time is 940 seconds；
Step 4：The molding sand model on 1 surface of ontology is removed after molding；
Step 5：Upper surface, lower surface and the axis hole 2 of ontology 1 carry out preliminary roughing；
Step 6：It is finished by the upper surface of rough machined ontology 1, lower surface and axis hole 2；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology 1 after molding, air-dries, and environmentally friendly enamelled coating includes 5 parts of graphite, 5 part two
Molybdenum sulfide, 14 parts of talcum powder, 14 parts of tung oil, 9 parts of chlorinated paraffins, 5 parts of hexamethyl celluloses, 31 parts of epoxy resin, 14 parts of second two
Alcohol, 2 parts of sodium hydroxides, 18 parts of fluorocarbon resins, 2 parts of comb polyurethane association thickeners, 3 parts of polyurethane levelling agents.
Embodiment 5
A kind of moulding process of compresser cylinder, including following step,
Step 1：By steel scrap 5000kg, 320 ㎏ of carbon, 190 ㎏ of silicon, 120 kilograms of manganese, 1.4 ㎏ of phosphorus, 8 ㎏ of sulphur, 30 ㎏ of chromium, yttrium
The raw material of 25 ㎏, 5 ㎏ of magnesium, 4300.6 ㎏ of iron are uniformly mixed in batch mixer and melt at a high temperature of 1400 DEG C；
Step 2：Moulding contoured body 1 is added into sand core in raw material after thawing, and molding sand selects alkali formula phenol resin sand,
The surface of alkali formula phenol resin sand applies chrome ore, containing 2 parts of tung oil in chrome ore, 1 part of sodium bentonite, chrome ore
Surface applies and has spilt cryolite powder；
Step 3：Water cooling is carried out after moulding, cooling time is 950 seconds；
Step 4：The molding sand model on 1 surface of ontology is removed after molding；
Step 5：Upper surface, lower surface and the axis hole 2 of ontology 1 carry out preliminary roughing；
Step 6：It is finished by the upper surface of rough machined ontology 1, lower surface and axis hole 2；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology 1 after molding, air-dries, and environmentally friendly enamelled coating includes 6 parts of graphite, 6 part two
Molybdenum sulfide, 15 parts of talcum powder, 15 parts of tung oil, 10 parts of chlorinated paraffins, 6 parts of hexamethyl celluloses, 32 parts of epoxy resin, 15 parts of second
Glycol, 1 part of sodium hydroxide, 20 parts of fluorocarbon resins, 1 part of comb polyurethane association thickener, 4 parts of polyurethane levelling agents.
Roughing in Examples 1 to 5 refers to is clamped ontology 1, face work flow 2mm, vehicle on the lathe of bedroom using four paws
2 equal 3~4mm of allowance of axis hole；
Finishing, which refers to, to be carried out being clamped using four paws on horizontal lathe, by 1 vehicle of ontology to standard size.
Experiment detection
1, appearance：The axis hole of cylinder and surface occur without apparent stomata；
2, the water pressure test blocks the axis hole on cylinder with cover board, and one of cover board is equipped with and the connector of penetrating press pump
Connected threaded hole, hydraulic pressure 37.5MPa, dwell time 35min are not leaked.
The testing inspection result of 1 Examples 1 to 5 of table
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Appearance | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
| The water pressure test | It is qualified | It is qualified | It is qualified | It is qualified | It is qualified |
It can be obtained by above table, the experimental result of Examples 1 to 5 meets the requirements, then illustrates Examples 1 to 5
Moulding process enables to the stomata of machine-shaping less, then molding product Use Limitation fruit is excellent.
Wherein selection example 3 is used as and is compared with comparative example with reference to embodiment.
Comparative example 1
Comparative example 1 does not apply difference lies in the surface of the chrome ore in comparative example 1 with embodiment 3 and spills cryolite powder, other
It is consistent with embodiment 3.
Comparative example 2
Comparative example 2 is not with embodiment 3 difference lies in sodium bentonite is contained in the chrome ore in comparative example 2, other are
It is consistent with embodiment 3.
Comparative example 3
Difference lies in do not contain sodium bentonite and in chrome ore in 3 Sand of comparative example for comparative example 3 and embodiment 3
Surface do not apply and spill cryolite powder, other are consistent with embodiment 3.
Experiment detection, is detected according to the detection method of Examples 1 to 5.
The testing inspection result of 2 comparative example 1~3 of table
| Detection project | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Appearance | Part surface has stomata | Part surface has stomata | Surface increased number of stomata |
| The water pressure test | Part is unqualified | Part is unqualified | It is more unqualified |
Comparative example 3 and comparative example 1, when the surface of chrome ore does not contain cryolite powder, the surface meeting of product is examined in part
There is stomata, shown as when carrying out hydrostatic test unqualified, then illustrates that the presence of cryolite powder can reduce cast(ing) surface gas
The phenomenon that hole；Then the experimental result of comparative example 3 and comparative example 2, when not adding sodium bentonite in chrome ore, part
The surface of inspection product will appear stomata, be shown as when carrying out hydrostatic test unqualified, then illustrates that surface can subtract using chrome ore
The phenomenon that few cast(ing) surface stomata；Then comparative example 3 and comparative example 3, do not apply directly on the surface of chrome ore and spill ice crystal
When sodium bentonite is not added in powder and chrome ore, inspection product occur it is more unqualified, then applicant can reasonable expectation go out, sodium
Base bentonite and cryolite powder have the function and effect of cooperation, enable to the stomata on inspection product less, and yield rate improves.
The above is only the exemplary embodiment of the present invention, protection domain and is not intended to limit the present invention, this hair
Bright protection domain is determined by the attached claims.
Claims (7)
1. a kind of moulding process of compresser cylinder, it is characterized in that：The moulding process includes following step,
Step 1：Raw material is uniformly mixed in batch mixer and is melted under high temperature, heat preservation is stood；
Step 2：Moulding contoured body (1) is added into sand mold in raw material after standing, and sand mold selects alkali formula phenol resin sand, described
The surface of sand mold uses chrome ore；
Step 3：Water cooling is carried out after moulding, cooling time is 900 ~ 950 seconds；
Step 4：The molding sand model on ontology (1) surface is removed after molding；
Step 5：Upper surface, lower surface and the axis hole (2) of ontology (1) carry out preliminary roughing；
Step 6：It is finished by the upper surface, lower surface and axis hole (2) of rough machined ontology (1)；
Step 7：The environmentally friendly enamelled coating of side wall coating of ontology (1) after molding, air-dries；
Environmentally friendly enamelled coating includes the component of following parts by weight, 4 ~ 6 parts of graphite, 4 ~ 6 parts of molybdenum disulfide, 10 ~ 15 parts of cunnings in step 7
Mountain flour, 10 ~ 15 parts of tung oil, 8 ~ 10 parts of chlorinated paraffins, 3 ~ 6 parts of hexamethyl celluloses, 30 ~ 32 parts of epoxy resin, 10 ~ 15 parts of second two
Alcohol, 1 ~ 2 part of sodium hydroxide, 15 ~ 20 parts of fluorocarbon resins, 1 ~ 2 part of thickener.
2. a kind of moulding process of compresser cylinder according to claim 1, it is characterized in that：Raw material in step 1 includes
The content of following weight percent, steel scrap 40 ~ 50, C 3.0 ~ 3.2, Si 1.8 ~ 1.9, Mn 1.0 ~ 1.2, P≤0.014, S
0.06 ~ 0.08, Cr 0.2 ~ 0.3, Y 0.05-0.25,0.05 Mg, remaining be Fe.
3. a kind of moulding process of compresser cylinder according to claim 2, it is characterized in that：Fusion temperature in step 1
It is 1300 ~ 1400 DEG C.
4. a kind of moulding process of compresser cylinder according to claim 1, it is characterized in that：In chrome ore in step 2
It is 2 also to contain weight part ratio：1 tung oil and sodium bentonite.
5. a kind of moulding process of compresser cylinder according to claim 4, it is characterized in that：The surface of the chrome ore applies
Cryolite powder is spilt.
6. a kind of moulding process of compresser cylinder according to claim 1, it is characterized in that：The thickener selects pectination
Polyurethane associative thickener.
7. a kind of moulding process of compresser cylinder according to claim 1, it is characterized in that：Further include having in the component
1 ~ 4 part of polyurethane levelling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262769.4A CN107138687B (en) | 2017-04-20 | 2017-04-20 | A kind of moulding process of compresser cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710262769.4A CN107138687B (en) | 2017-04-20 | 2017-04-20 | A kind of moulding process of compresser cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107138687A CN107138687A (en) | 2017-09-08 |
| CN107138687B true CN107138687B (en) | 2018-10-30 |
Family
ID=59774799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710262769.4A Active CN107138687B (en) | 2017-04-20 | 2017-04-20 | A kind of moulding process of compresser cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107138687B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649220A (en) * | 2011-02-25 | 2012-08-29 | 李永达 | Manufacturing method of large-scale reciprocating type refrigeration compressor |
| CN103709874A (en) * | 2014-01-14 | 2014-04-09 | 钱计兴 | Fluororesin modified polyvinyl chloride clean material and priming paint and finish paint containing clean material |
| CN104057013A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Environment-friendly casting molding sand and preparation method thereof |
| CN104826999A (en) * | 2015-04-24 | 2015-08-12 | 辽宁福鞍重工股份有限公司 | Method of preventing heavy-duty fuel machine compressor exhaust cylinder casting ultrathin sand core from sand burning |
| CN104907499A (en) * | 2015-04-24 | 2015-09-16 | 辽宁福鞍重工股份有限公司 | Heavy type gas turbine compressor exhaust cylinder casting process |
-
2017
- 2017-04-20 CN CN201710262769.4A patent/CN107138687B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649220A (en) * | 2011-02-25 | 2012-08-29 | 李永达 | Manufacturing method of large-scale reciprocating type refrigeration compressor |
| CN103709874A (en) * | 2014-01-14 | 2014-04-09 | 钱计兴 | Fluororesin modified polyvinyl chloride clean material and priming paint and finish paint containing clean material |
| CN104057013A (en) * | 2014-05-28 | 2014-09-24 | 安徽鑫润新型材料有限公司 | Environment-friendly casting molding sand and preparation method thereof |
| CN104826999A (en) * | 2015-04-24 | 2015-08-12 | 辽宁福鞍重工股份有限公司 | Method of preventing heavy-duty fuel machine compressor exhaust cylinder casting ultrathin sand core from sand burning |
| CN104907499A (en) * | 2015-04-24 | 2015-09-16 | 辽宁福鞍重工股份有限公司 | Heavy type gas turbine compressor exhaust cylinder casting process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107138687A (en) | 2017-09-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103878338B (en) | A kind of processing technology of automobile engine end cap | |
| CN108788002B (en) | Heat-resistant aluminum alloy die-casting release agent and preparation method and use method thereof | |
| CN106914587A (en) | A kind of processing technology of precision-investment casting housing | |
| CN108838318B (en) | High-temperature-resistant casting mold release agent and preparation method and use method thereof | |
| CN104532036B (en) | A kind of preparation method adopting automobile waste aluminum component regeneration extrusion casint dedicated aluminium alloy | |
| CN104785709A (en) | Precoated sand for casting and preparation method thereof | |
| CN111676404B (en) | Improved die casting forming method | |
| CN102912214A (en) | Ductile cast iron as well as ductile cast iron piston and casting process thereof | |
| CN104353789B (en) | The preparation method of a kind of sand casting core and prepared core | |
| CN107138687B (en) | A kind of moulding process of compresser cylinder | |
| CN107052244A (en) | A kind of lost-foam casting method of ZG40Mn2 materials | |
| CN101532111A (en) | Tic particle dispersion strengthening gray cast iron and method for preparing same | |
| CN105562618A (en) | Manufacturing method of brake disc | |
| Guler et al. | A study of expanded polyethylene (EPE) pattern application in aluminium lost foam casting | |
| Kvon et al. | Studying structure and properties of shaped ingots obtained in various conditions of crystallization | |
| CN106009818A (en) | Antirust coating used for steel, and preparation method thereof | |
| CN105798271A (en) | Automobile mold casting cast by compounding ductile iron and gray iron, gating system and casting method | |
| CN108642329A (en) | A kind of train gear-box and preparation method thereof | |
| CN108728706A (en) | A kind of pressure casting method of auto parts machinery | |
| CN104384440B (en) | A kind of ingot mould antirusting paint and preparation method thereof | |
| CN111152403A (en) | Automobile injection mold forming and surface strengthening treatment process | |
| CN101985158B (en) | Method for casting manganese steel broken wall or mortar-rolling wall of cone crusher by internal and external metal molds sand-lining | |
| CN110202091A (en) | A kind of tungsten carbide particle enhances the preparation method of whole iron base composite material | |
| CN105970052B (en) | A kind of aluminum alloy materials and its sand mould casting method for substituting QT500 heavy type car steering gears | |
| CN105506468B (en) | The preparation method of buffer |
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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Forming process of compressor cylinder Effective date of registration: 20211009 Granted publication date: 20181030 Pledgee: Zhejiang Tailong commercial bank Taizhou branch of Limited by Share Ltd. Pledgor: TAIZHOU ZHONGMAO MACHINERY Co.,Ltd. Registration number: Y2021980010466 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |