CN107654544B - Engine oil radiator for retarder - Google Patents
Engine oil radiator for retarder Download PDFInfo
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- CN107654544B CN107654544B CN201710798407.7A CN201710798407A CN107654544B CN 107654544 B CN107654544 B CN 107654544B CN 201710798407 A CN201710798407 A CN 201710798407A CN 107654544 B CN107654544 B CN 107654544B
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- 239000010705 motor oil Substances 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 118
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 100
- 238000001816 cooling Methods 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 238000000137 annealing Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000012535 impurity Substances 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005097 cold rolling Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000005098 hot rolling Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 239000010721 machine oil Substances 0.000 abstract 1
- 238000004080 punching Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010835 comparative analysis Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/78—Features relating to cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Braking Arrangements (AREA)
Abstract
The utility model provides a machine oil radiator for retarder, includes the cooler body, sets up in cooler body upper end and delivery port, water inlet and the oil drain that links to each other with the cooler body, cooler body upper end is provided with ring flange II, and its lower extreme is provided with ring flange I, delivery port and water inlet all are connected with and connect. Because the auxiliary oil side chips I8, the plurality of layers of auxiliary water side chips 9, the plurality of layers of auxiliary oil side chips II10, the plurality of layers of main water side chips I11, the plurality of layers of main oil side chips I12, the plurality of layers of main oil side chips II14, the plurality of layers of main water side chips II15 and the cooler fins 15 clamped between the chips are arranged, the cooling effect of the engine oil radiator for the whole retarder is excellent, and the heat exchange effect of the engine oil cooler is improved.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to an engine oil radiator for a retarder.
Background
On day 1 and 5 of 2012, the Ministry of industry and communications ' notice on further improving the safety and technical performance of large and medium-sized passenger cars and trucks, strengthening vehicle management and registering management work ' requires that a retarder or other auxiliary braking devices are arranged on dangerous goods transport vehicles and trucks with the total mass more than 12 tons ', and meanwhile, the retarder or other auxiliary braking devices are arranged on trucks with the total mass more than 12 tons in the new version of technical conditions for the operation safety of motor vehicles (GB 7258); the automobile braking system is one of the most important systems in the safe running of the automobile, along with the development of the engine technology and the improvement of road conditions, the running speed and the single running distance of the automobile are greatly developed, and the running kinetic energy is greatly improved, so that the traditional friction plate type braking device can not adapt to the working requirements of long time and high strength more and more. Due to frequent or long-time use of the service brake, the phenomenon of thermal decay of braking efficiency caused by overheating of the friction plate occurs, and braking failure is caused in severe cases, so that the service safety is threatened. Vehicles also result in increased transportation costs due to frequent replacement of brake shoes and tires. In order to solve this problem, various vehicle auxiliary brake systems have been developed rapidly, and a hydraulic retarder is one of them.
The hydraulic retarder appears at the earliest so as to solve the problem of difficulty in speed reduction in a short distance of a train. Thereafter, hydrodynamic retarders were used on motor trains, which were found to have a good auxiliary braking effect. Nowadays, hydraulic retarders are increasingly applied to heavy trucks and large and medium buses. With the development of its applications, many companies producing hydrodynamic retarders have emerged. Known hydrodynamic retarder manufacturers include fuitt (VOITH) germany, tylma france (temma), universal america, TBK japan, and the like. At present, the research and development of the hydraulic retarder in China have been developed to a certain extent, and research and test have been started in some companies. The installation mode of the hydraulic retarder is generally divided into two modes of series connection and parallel connection with a transmission shaft. When connected in series, the front and the back of the speed changer can be installed; if parallel connection is adopted, the retarder and the speed changer are integrated into a whole to be installed. When the retarder works, compressed air enters the oil storage tank through the electromagnetic valve, transmission oil in the oil storage tank is pressed into the retarder through the oil way, and the retarder starts to work. The rotor drives the oil to rotate around the axis; meanwhile, the oil moves along the direction of the blades and is thrown to the stator. The stator blade produces the reaction to fluid, and fluid flows out the stator and changes back again and strike the rotor, just so forms the resistance moment to the rotor, hinders the rotation of rotor to the realization is to the deceleration effect of vehicle. The inlet and the outlet of the working fluid form pressure difference in the moving process, the oil circularly flows and exchanges heat when passing through the heat exchanger, and the heat exchanger needs strong heat exchange performance to meet the requirement of a vehicle during running; application research of the latest hydraulic retarder shows that the effect is more ideal when the engine brake, the exhaust brake and the hydraulic retarder are used for jointly controlling the brake. The engine brake has good deceleration effect at low rotating speed, and as the rotating speed rises, the exhaust brake and the retarder brake start to intervene, and the brake strength is gradually increased. The combination of the two parts can ensure that the automobile stably descends, and the safety of the automobile descending is improved. Shenzhen city a certain public transport (group) limited company has conducted comparative analysis on the affiliated 3-route public transport vehicles. The No. 3 line is provided with 20 air-conditioning buses, is provided with a B300R automatic transmission and is provided with a hydraulic retarder; 17 ordinary buses are equipped with AT545 automatic transmissions and no hydraulic retarder. Both vehicles are EQ1141G chassis. Through comparative analysis, the film changing amount and the drum changing amount of the common bus are respectively 1.73 times and 2.03 times of those of the air-conditioning bus, and the repair frequency is 1.93 times of that of the air-conditioning bus. Therefore, the using effect of the hydrodynamic retarder is quite ideal. Therefore, the driving safety of the vehicle is improved, safety accidents caused by heat fading of a driving brake when the vehicle runs on a slope are reduced, the average driving speed of the vehicle is improved when the vehicle runs on a downhill, and the vehicle speed can be controlled and adjusted and the distance between vehicles can be kept easily when the vehicle runs on a flat road; frequent retarding and braking are reduced, the comfort and the operation flexibility of the vehicle are improved, the fatigue strength of a driver is greatly reduced, and the braking noise is reduced; the economical efficiency of vehicle transportation is improved, and the economic benefit is very obvious; in 2011, the accumulated yield of the heavy trucks in China is more than 200 thousands, the heat exchanger product matched with the heavy trucks is researched and developed at present, and the heat exchanger has very wide prospect, and the international and domestic markets are guaranteed.
In the existing engine oil radiator for the retarder, each radiating chip is of a flat plate type structure, so that the radiating effect is not excellent enough and the using requirement cannot be met.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the engine oil radiator for the retarder, which has good engine oil cooling effect.
The technical scheme adopted by the invention for overcoming the technical problems is as follows:
an engine oil radiator for a retarder comprises a cooler body, a water outlet, a water inlet and oil discharge, wherein the water outlet, the water inlet and the oil discharge are arranged at the upper end of the cooler body and are connected with the cooler body, the upper end of the cooler body is provided with a flange plate II, the lower end of the cooler body is provided with a flange plate I, the water outlet and the water inlet are connected, the cooler body is sequentially provided with a plurality of layers of auxiliary oil side chips I, a plurality of layers of auxiliary water side chips, a plurality of layers of auxiliary oil side chips II, a plurality of layers of main water side chips I, a plurality of layers of main oil side chips II and a plurality of layers of main water side chips II from bottom to top, cooler fins are arranged between the auxiliary oil side chips I and the auxiliary water side chips, between the auxiliary oil side chips II and the main water side chips I, between the main water side chips I and the main oil side chips I, between the main oil side chips I and the main oil side chips II, the oil-water separator is characterized in that a plurality of mutually parallel ribs I are arranged on the main oil side chip I and the main oil side chip II, a plurality of mutually parallel ribs II and ribs III are respectively arranged on the auxiliary oil side chip I and the auxiliary oil side chip II, a plurality of circular bosses I are arranged on the main water side chip I and the main water side chip II, and a plurality of circular bosses II are arranged on the auxiliary water side chip.
The manufacturing process of the rib I, the rib II and the rib III comprises the following steps:
a) respectively etching a plurality of grooves which are same in width and are parallel to each other on the main oil side chip I, the main oil side chip II, the auxiliary oil side chip I and the auxiliary oil side chip II by utilizing a laser;
b) heating the groove to 850-1100 ℃, and spraying graphite powder with the thickness of 25-40 microns on the bottom and two side walls of the groove by using a spray gun through compressed air;
c) and cooling to a room temperature environment, placing the main oil side chip I, the main oil side chip II, the auxiliary oil side chip I and the auxiliary oil side chip II into a press machine, and stamping the grooves by utilizing a stamping die to form a rib I, a rib II and a rib III.
d) Putting the main oil side chip I, the main oil side chip II, the auxiliary oil side chip I and the auxiliary oil side chip II into 75-95% alcohol solution to clean graphite powder, and airing the graphite powder after cleaning
The manufacturing process of the boss I and the boss II comprises the following steps:
a) respectively ablating a plurality of circular grooves on the main water side chip I, the main water side chip II and the auxiliary water side chip by using a laser;
b) heating the groove to 850-1100 ℃, and spraying graphite powder with the thickness of 25-40 microns on the bottom and the side wall of the groove by using a spray gun through compressed air;
c) and cooling to room temperature environment, putting the main water side chip I, the main water side chip II and the auxiliary water side chip into a press machine, and stamping the groove by utilizing a stamping die to form a boss I and a boss II.
d) And (3) putting the main water side chip I, the main water side chip II and the auxiliary water side chip into 75-95% alcohol solution to clean the graphite powder, and airing the graphite powder after cleaning.
The cooler fin comprises the following components in percentage by mass: 0.03-0.06% of C, 0.75% of Si, 0.5-0.8% of Mn0.05-0.2% of P, 0.03% of S, 18-20% of Cr, 9-12% of Ni, 0.06% of Mo0.06% of Cu, less than or equal to 0.10% of Cu, less than or equal to 0.2% of Al, less than or equal to 0.16% of Cu and less than or equal to 0.25% of Al, and the balance of Fe and impurities, wherein the total content of impurities is less than or equal to 0.10.
A method for producing a fin material of a cooler for an oil cooler, comprising the steps of:
1) melting: adding the raw materials weighed according to the weight ratio into an induction furnace, adding the raw materials into a melting furnace, wherein the temperature of the melting furnace is 800 +/-20 ℃, and blowing oxygen into the alloy solution for 10-20 minutes;
2) refining: refining the alloy solution by adopting a refining furnace, wherein the addition amount of a refining agent is 0.3-0.6% of the alloy solution in percentage by weight, and the refining agent comprises the following components in percentage by weight: RE 6-8%, Mg 2-3%, Ba 6-8%, Ca 2-4%, Ti 5-6%, V5%, and the balance Fe, wherein the Ti content is 0.0002-0.0005%, and the temperature of the alloy solution is adjusted to 680-700 ℃ for casting;
3) casting: pouring the alloy solution into a mold, setting low-pressure casting process parameters, namely, the liquid lifting pressure is 0.03-0.04 MPa, the liquid lifting speed is 30-50 mm/s, the mold filling pressure is 0.07-0.08 MPa, the mold filling speed is 50-80 mm/s, the pressure maintaining pressure is 0.14-0.15 MPa, the pressure maintaining time is 20-30 s, releasing pressure, completing the whole pouring process of liquid lifting, mold filling, pressure maintaining and pressure releasing, opening the mold, and taking out the ingot;
4) and (3) heat treatment: putting the ingot into a heat treatment furnace, controlling the temperature at 800-1060 ℃, preserving the heat for 2-3h, then putting the ingot into a normal-temperature water pool for cooling, controlling the time at 0.5-1 h, taking the ingot out of the normal-temperature water pool, and naturally cooling for 4-6 h;
5) rough rolling: preheating the cast ingot, wherein the preheating temperature is 450-550 ℃, and the heat preservation time is 2-10 h; then, hot rolling the preheated cast ingot to the thickness of 5-10 mm to obtain a plate strip;
6) intermediate annealing: annealing the plate strip, wherein the annealing temperature is between 300 and 500 ℃, and the heat preservation time is 2 to 10 hours;
7) and (3) finish rolling: carrying out final cold rolling on the plate strip, wherein the cold rolling reduction rate is 50-60%;
8) and (3) final annealing: and annealing the cold-rolled sheet strip, wherein the annealing temperature is between 200 and 400 ℃, and the heat preservation time is 3 to 20 hours.
The invention has the beneficial effects that: because the oil cooler is provided with the auxiliary oil side chip I, the plurality of layers of auxiliary water side chips, the plurality of layers of auxiliary oil side chips II, the plurality of layers of main water side chips I, the plurality of layers of main oil side chips II, the plurality of layers of main water side chips II and the cooler fins clamped between the chips, the cooling effect of the whole engine oil radiator for the retarder is excellent, and the heat exchange effect of the engine oil cooler is improved.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic structural view of a main oil side chip;
FIG. 4 is a schematic structural view of a main water side chip;
FIG. 5 is a schematic structural view of a secondary oil side I chip;
FIG. 6 is a schematic structural diagram of a secondary oil side II chip;
FIG. 7 is a schematic structural view of a sub-water-side chip;
in the figure, 1, a cooler body 2, an oil outlet 3, a water outlet 4, a water inlet 5, a flange I6, a flange II 7, a connecting pipe 8, an auxiliary oil side chip I9, an auxiliary water side chip 10, an auxiliary oil side chip II 11, a main water side chip I12, a main oil side chip I13, a main oil side chip II14, a main water side chip II15, a cooler fin 16, a rib I17, a boss I18, a rib II19, a rib III 20 and a boss II.
Detailed Description
The invention will be further explained with reference to fig. 1 and 2.
An engine oil radiator for a retarder comprises a cooler body 1, a water outlet 3, a water inlet 4 and an oil discharge port 2, wherein the water outlet 3, the water inlet 4 and the oil discharge port 2 are arranged at the upper end of the cooler body 1 and are connected with the cooler body, a flange plate II6 is arranged at the upper end of the cooler body 1, a flange plate I5 is arranged at the lower end of the cooler body, connecting pipes 7 are connected with the water outlet 3 and the water inlet 4, a plurality of layers of auxiliary oil side chips I8, a plurality of layers of auxiliary water side chips 9, a plurality of layers of auxiliary oil side chips II10, a plurality of layers of main water side chips I11, a plurality of layers of main oil side chips I12, a plurality of layers of main oil side chips II14 and a plurality of main water side chips II15 are sequentially arranged from bottom to top, a plurality of layers of auxiliary oil side chips I8 and auxiliary water side chips II 5969, a plurality of auxiliary water side chips II10, a plurality of auxiliary oil side chips II10 and a plurality of main water side chips I11, a plurality of main water side chips I11 and a plurality of main oil side chips II 12, a plurality of main oil side chips II 12 and a main water side 39 14 There is cooler fin 15, be provided with a plurality of fins I16 that are parallel to each other on main oil side chip I12 and the main oil side chip II13, be provided with a plurality of fins II18 and the fin III19 that are parallel to each other on vice oil side chip I8 and the vice oil side chip II10 respectively, be provided with a plurality of circular shape boss I17 on main water side chip I11 and the main water side chip II14, be provided with a plurality of circular shape boss II20 on the vice water side chip 9. Because the auxiliary oil side chips I8, the plurality of layers of auxiliary water side chips 9, the plurality of layers of auxiliary oil side chips II10, the plurality of layers of main water side chips I11, the plurality of layers of main oil side chips I12, the plurality of layers of main oil side chips II14, the plurality of layers of main water side chips II15 and the cooler fins 15 clamped between the chips are arranged, the cooling effect of the whole engine oil radiator for the retarder is excellent, and the heat exchange effect of the engine oil cooler is improved.
Furthermore, the manufacturing process of the rib I16, the rib II18 and the rib III19 comprises the following steps:
a) respectively scribing a plurality of grooves which have the same width and are parallel to each other on the main oil side chip I12, the main oil side chip II13, the auxiliary oil side chip I8 and the auxiliary oil side chip II10 by utilizing a laser;
b) heating the groove to 850-1100 ℃, and spraying graphite powder with the thickness of 25-40 microns on the bottom and two side walls of the groove by using a spray gun through compressed air;
c) and cooling to a room temperature environment, placing the main oil side chip I12, the main oil side chip II13, the auxiliary oil side chip I8 and the auxiliary oil side chip II10 into a press, and stamping the grooves by utilizing a stamping die to form ribs I16, ribs II18 and ribs III 19.
d) And (3) putting the main oil side chip I12, the main oil side chip II13, the auxiliary oil side chip I8 and the auxiliary oil side chip II10 into 75-95% alcohol solution to clean graphite powder, and airing the graphite powder after cleaning. The purpose of cutting the grooves by the laser is to thin the parts of the ribs I16, II18 and III19 formed by punching, so that the material thickness of the ribs I16, II18 and III19 is small after the ribs I16, II18 and III19 are formed by punching, thereby improving the heat conductivity. The graphite powder is attached to the grooves after the step b), and when the grooves are punched, the graphite powder plays a role in lubricating, so that the outer walls of the ribs I16, II18 and III19 formed by punching are smooth and have no wrinkles.
Further, the manufacturing process of the boss I17 and the boss II20 comprises the following steps:
a) respectively ablating a plurality of circular grooves on the main water side chip I11, the main water side chip II14 and the auxiliary water side chip 9 by using a laser;
b) heating the groove to 850-1100 ℃, and spraying graphite powder with the thickness of 25-40 microns on the bottom and the side wall of the groove by using a spray gun through compressed air;
c) and cooling to a room temperature environment, placing the main water side chip I11, the main water side chip II14 and the auxiliary water side chip 9 into a press, and stamping the grooves by utilizing a stamping die to form a boss I17 and a boss II 20.
d) And (3) putting the main water side chip I11, the main water side chip II14 and the auxiliary water side chip 9 into 75-95% alcohol solution to clean the graphite powder, and airing the graphite powder after cleaning. The purpose of utilizing the laser to ablate the groove is to thin the part of the boss I17 and the boss II20 which are formed by punching, so that the material thickness of the boss I17 and the boss II20 which are formed by punching is small, thereby improving the heat conductivity. The graphite powder is attached to the grooves after the step b), and when the grooves are punched, the graphite powder plays a role in lubricating, so that the outer walls of the bosses I17 and II20 formed by punching are smooth and have no wrinkles.
Example 1:
the cooler fin comprises the following components in percentage by mass: 0.03-0.06% of C, 0.75% of Si, 0.5-0.8% of Mn0.05-0.2% of P, 0.03% of S, 18-20% of Cr, 9-12% of Ni, 0.06% of Mo0.06% of Cu, less than or equal to 0.10% of Cu, less than or equal to 0.2% of Al, less than or equal to 0.16% of Cu and less than or equal to 0.25% of Al, and the balance of Fe and impurities, wherein the total content of impurities is less than or equal to 0.10.
A method for producing a fin material of a cooler for an oil cooler, comprising the steps of:
1) melting: adding the raw materials weighed according to the weight ratio into an induction furnace, adding the raw materials into a melting furnace, wherein the temperature of the melting furnace is 800 +/-20 ℃, and blowing oxygen into the alloy solution for 10-20 minutes;
2) refining: refining the alloy solution by adopting a refining furnace, wherein the addition amount of a refining agent is 0.3-0.6% of the alloy solution in percentage by weight, and the refining agent comprises the following components in percentage by weight: RE 6-8%, Mg 2-3%, Ba 6-8%, Ca 2-4%, Ti 5-6%, V5%, and the balance Fe, wherein the Ti content is 0.0002-0.0005%, and the temperature of the alloy solution is adjusted to 680-700 ℃ for casting;
3) casting: pouring the alloy solution into a mold, setting low-pressure casting process parameters, namely, the liquid lifting pressure is 0.03-0.04 MPa, the liquid lifting speed is 30-50 mm/s, the mold filling pressure is 0.07-0.08 MPa, the mold filling speed is 50-80 mm/s, the pressure maintaining pressure is 0.14-0.15 MPa, the pressure maintaining time is 20-30 s, releasing pressure, completing the whole pouring process of liquid lifting, mold filling, pressure maintaining and pressure releasing, opening the mold, and taking out the ingot;
4) and (3) heat treatment: putting the ingot into a heat treatment furnace, controlling the temperature at 800-1060 ℃, preserving the heat for 2-3h, then putting the ingot into a normal-temperature water pool for cooling, controlling the time at 0.5-1 h, taking the ingot out of the normal-temperature water pool, and naturally cooling for 4-6 h;
5) rough rolling: preheating the cast ingot, wherein the preheating temperature is 450-550 ℃, and the heat preservation time is 2-10 h; then, hot rolling the preheated cast ingot to the thickness of 5-10 mm to obtain a plate strip;
6) intermediate annealing: annealing the plate strip, wherein the annealing temperature is between 300 and 500 ℃, and the heat preservation time is 2 to 10 hours;
7) and (3) finish rolling: carrying out final cold rolling on the plate strip, wherein the cold rolling reduction rate is 50-60%;
8) and (3) final annealing: and annealing the cold-rolled sheet strip, wherein the annealing temperature is between 200 and 400 ℃, and the heat preservation time is 3 to 20 hours.
Comparison of the Properties of the inventive Material and the 304 Steel Material Table 1
Therefore, the mechanical properties of the material at room temperature and high temperature are obviously superior to those of the original material, the oxidation resistance is obviously improved, and the service life of the fin is prolonged.
Table 2: the invention relates to a mechanical property meter of a fin material
And 5% HNO3+ 1% HCL corrosion-resistant solution is used for soaking at room temperature for testing, the corrosion rate is less than 140mm/y, and the corrosion rate of common stainless steel is more than 380 mm/y.
Example 2
The fin of the heat exchanger comprises the following components in percentage by mass: 0.06 percent, Si0.75 percent, Mn0.5 percent, P0.05 percent, S0.03 percent, Cr18 percent, Ni 11 percent, Mo0.06 percent, Cu0.06 percent, Al0.1 percent, and the balance of Fe and impurities, wherein the total content of the impurities is less than or equal to 0.10.
The production method of the fin material is the same as that of the embodiment, and the experimental detection data is similar to that of the embodiment 1.
Example 3
A fin for a heat exchanger, characterized by: the fin material comprises the following components in percentage by mass: 0.05 percent of C, 0.75 percent of Si, 0.8 percent of Mn0.2 percent of P, 0.03 percent of S, 0 percent of Cr, 9 percent of Ni, 0.06 percent of Mo0.06 percent of Cu0.1 percent of Al, 0.15 percent of Fe and impurities in balance, and the total content of the impurities is less than or equal to 0.10.
The production method of the fin material is the same as that of the embodiment, and the experimental detection data is similar to that of the embodiment 1.
The heat exchanger for the hydraulic retarder is an important component of a hydraulic retarder system and is used for reducing the temperature of oil liquid when the retarder works, a product is assembled at the rear side of the retarder, when the retarder works, the oil liquid counteractive flow is mainly adopted to block the rotation of a rotor, the deceleration effect on a vehicle is realized, the oil temperature is quickly increased when the retarder works, high-temperature oil liquid circularly flows, heat exchange is carried out through the heat exchanger, and the temperature of the oil liquid is quickly reduced, so that the requirement of running work of the vehicle is met; this project product material adopts novel material, forms through 1120 degrees high temperature vacuum brazing, and the product is two oil duct water oil dual composite structures of a water course, and the product chip adopts professional mould processing to form, adopts Z formula H formula mixed structure processing and assembly of professional design for improving the inside fin of heat exchange efficiency product, has compact structure, and heat exchange efficiency is high, characteristics such as simple to operate, satisfies the needs of retarber during operation completely.
Claims (3)
1. The engine oil radiator for the retarder comprises a cooler body (1), a water outlet (3), a water inlet (4) and an oil outlet (2) which are arranged at the upper end of the cooler body (1) and are connected with the cooler body, and is characterized in that a flange plate II (6) is arranged at the upper end of the cooler body (1), a flange plate I (5) is arranged at the lower end of the cooler body (1), the water outlet (3) and the water inlet (4) are simultaneously connected with a connecting pipe (7), a plurality of layers of auxiliary oil side chips I (8), a plurality of layers of auxiliary water side chips (9), a plurality of layers of auxiliary oil side chips II (10), a plurality of layers of main water side chips I (11), a plurality of layers of main oil side chips I (12), a plurality of layers of main oil side chips II (13) and a plurality of layers of main water side chips II (14) are sequentially arranged from bottom to top, and a part between the auxiliary oil side chips I (8) and the auxiliary water side chips (9), Cooler fins (15) are arranged between the auxiliary water side chip (9) and the auxiliary oil side chip II (10), between the auxiliary oil side chip II (10) and the main water side chip I (11), between the main water side chip I (11) and the main oil side chip I (12), between the main oil side chip I (12) and the main oil side chip II (13) and between the main oil side chip II (13) and the main water side chip II (14), a plurality of mutually parallel convex ribs I (16) are arranged on the main oil side chip I (12) and the main oil side chip II (13), the auxiliary oil side chip I (8) and the auxiliary oil side chip II (10) are respectively provided with a plurality of mutually parallel ribs II (18) and ribs III (19), a plurality of circular bosses I (17) are arranged on the main water side chip I (11) and the main water side chip II (14), a plurality of circular bosses II (20) are arranged on the auxiliary water side chip (9);
the manufacturing process of the rib I (16), the rib II (18) and the rib III (19) comprises the following steps:
respectively scribing a plurality of grooves which are same in width and parallel to each other on a main oil side chip I (12), a main oil side chip II (13), an auxiliary oil side chip I (8) and an auxiliary oil side chip II (10) by utilizing a laser;
heating the groove to 850-1100 ℃, and spraying graphite powder with the thickness of 25-40 microns on the bottom and two side walls of the groove by using a spray gun through compressed air;
cooling to room temperature environment, placing the main oil side chip I (12), the main oil side chip II (13), the auxiliary oil side chip I (8) and the auxiliary oil side chip II (10) into a press machine, and stamping the grooves by utilizing a stamping die to form a rib I (16), a rib II (18) and a rib III (19);
putting the main oil side chip I (12), the main oil side chip II (13), the auxiliary oil side chip I (8) and the auxiliary oil side chip II (10) into 75-95% alcohol solution to clean graphite powder, and airing the graphite powder after cleaning;
the manufacturing process of the boss I (17) and the boss II (20) comprises the following steps:
respectively ablating a plurality of circular grooves on the main water side chip I (11), the main water side chip II (14) and the auxiliary water side chip (9) by using a laser;
heating the circular groove to 850-1100 ℃, and spraying graphite powder with the thickness of 25-40 microns on the bottom and the side wall of the groove by using a spray gun through compressed air;
cooling to room temperature environment, placing the main water side chip I (11), the main water side chip II (14) and the auxiliary water side chip (9) into a press machine, and stamping the grooves by utilizing a stamping die to form a boss I (17) and a boss II (20);
and (3) putting the main water side chip I (11), the main water side chip II (14) and the auxiliary water side chip (9) into 75-95% alcohol solution to clean the graphite powder, and airing the graphite powder after cleaning.
2. The oil radiator for a retarder according to claim 1, characterized in that: the cooler fin material comprises the following components in percentage by mass: 0.03 to 0.06 percent of C, 0.75 percent of Si, 0.5 to 0.8 percent of Mn0.05 to 0.2 percent of P, 0.03 percent of S, 18 to 20 percent of Cr, 9 to 12 percent of Ni, 0.06 percent of Mo0.06 percent, less than or equal to 0.10 percent of Cu, less than or equal to 0.2 percent of Al, less than or equal to 0.16 percent of Cu and less than or equal to 0.25 percent of Al total content, and the balance of Fe and impurities, wherein the total content of the impurities is less than or equal to 0.10 percent.
3. A production method of a cooler fin material of an engine oil cooler is characterized by comprising the following steps: the method comprises the following steps:
1) melting: adding raw materials into an induction furnace, weighing the raw materials according to the mass percentage ratio of the components of the cooler fin material as claimed in claim 2, adding the raw materials into a melting furnace, wherein the temperature of the melting furnace is 800 +/-20 ℃, and blowing oxygen into the alloy solution for 10-20 minutes;
2) refining: refining the alloy solution by adopting a refining furnace, wherein the addition amount of a refining agent is 0.3-0.6% of the alloy solution in percentage by weight, and the refining agent comprises the following components in percentage by weight:
RE 6-8%, Mg 2-3%, Ba 6-8%, Ca 2-4%, Ti 5-6%, V5%, and the balance Fe, wherein the Ti content is 0.0002-0.0005%, and the temperature of the alloy solution is adjusted to 680-700 ℃ for casting;
3) casting: pouring the alloy solution into a mold, setting low-pressure casting process parameters, namely, the liquid lifting pressure is 0.03-0.04 MPa, the liquid lifting speed is 30-50 mm/s, the mold filling pressure is 0.07-0.08 MPa, the mold filling speed is 50-80 mm/s, the pressure maintaining pressure is 0.14-0.15 MPa, the pressure maintaining time is 20-30 s, releasing pressure, completing the whole pouring process of liquid lifting, mold filling, pressure maintaining and pressure releasing, opening the mold, and taking out the ingot;
4) and (3) heat treatment: putting the ingot into a heat treatment furnace, controlling the temperature at 800-1060 ℃, preserving the heat for 2-3h, then putting the ingot into a normal-temperature water pool for cooling, controlling the time at 0.5-1 h, taking the ingot out of the normal-temperature water pool, and naturally cooling for 4-6 h;
5) rough rolling: preheating the cast ingot, wherein the preheating temperature is 450-550 ℃, and the heat preservation time is 2-10 h; then, hot rolling the preheated cast ingot to the thickness of 5-10 mm to obtain a plate strip;
6) intermediate annealing: annealing the plate strip, wherein the annealing temperature is between 300 and 500 ℃, and the heat preservation time is 2 to 10 hours;
7) and (3) finish rolling: carrying out final cold rolling on the plate strip, wherein the cold rolling reduction rate is 50-60%;
8) and (3) final annealing: and annealing the cold-rolled sheet strip, wherein the annealing temperature is between 200 and 400 ℃, and the heat preservation time is 3 to 20 hours.
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| CN2746127Y (en) * | 2004-04-20 | 2005-12-14 | 浙江银轮机械股份有限公司 | Compact type oil cooler |
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| CN102027146A (en) * | 2008-05-12 | 2011-04-20 | 日新制钢株式会社 | Ferritic stainless steel |
| CN204327226U (en) * | 2014-12-18 | 2015-05-13 | 重庆小康工业集团股份有限公司 | Between column machine oil cooler |
| CN105734368A (en) * | 2014-12-24 | 2016-07-06 | 三菱铝株式会社 | Aluminum alloy fin material, method for manufacturing aluminum alloy fin material and heat exchanger comprising aluminum alloy fin material |
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| CN2746127Y (en) * | 2004-04-20 | 2005-12-14 | 浙江银轮机械股份有限公司 | Compact type oil cooler |
| CN102027146A (en) * | 2008-05-12 | 2011-04-20 | 日新制钢株式会社 | Ferritic stainless steel |
| KR20100000691A (en) * | 2008-06-25 | 2010-01-06 | 현대자동차주식회사 | An oil-cooler for a vehicle's auto transmission |
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Denomination of invention: Oil radiator for retarder Granted publication date: 20211105 Pledgee: Rizhao Bank Co.,Ltd. Liaocheng Chiping Branch Pledgor: LIAOCHENG DETONG AUTO PARTS MANUFACTURING Co.,Ltd. Registration number: Y2024980004177 |