CN112264589A - Manufacturing and forming method of stainless steel intercooling air inlet pipe - Google Patents
Manufacturing and forming method of stainless steel intercooling air inlet pipe Download PDFInfo
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- CN112264589A CN112264589A CN202010963213.XA CN202010963213A CN112264589A CN 112264589 A CN112264589 A CN 112264589A CN 202010963213 A CN202010963213 A CN 202010963213A CN 112264589 A CN112264589 A CN 112264589A
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- Prior art keywords
- inlet pipe
- air inlet
- intercooling
- temperature
- polishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- 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
- C21D1/78—Combined heat-treatments not provided for above
- C21D1/785—Thermocycling
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
Abstract
The invention discloses a manufacturing and forming method of a stainless steel intercooling air inlet pipe, which specifically comprises the following steps: step 1: a preparation stage of common mechanical equipment, step 2: and (3) heating, forming and testing the intercooling air inlet pipe, and performing step 3: and (4) testing operation of the intercooling air inlet pipe, and step 4: and (5) performing high-temperature heat treatment on the intercooling air inlet pipe, and performing step 5: the invention relates to the technical field of air inlet pipes, in particular to surface polishing treatment of an intercooling air inlet pipe. According to the manufacturing and forming method of the stainless steel intercooling air inlet pipe, comprehensive air leakage detection is carried out on the intercooling air inlet pipe in a blank state, air leakage products are effectively prevented from flowing out of a production line, the qualification rate of products in the later period is improved, crack expansion caused by long-term high temperature when the products are used is avoided, the operating efficiency of the intercooling air inlet pipe is effectively improved through heat treatment on the intercooling air inlet pipe in the blank state, and the stability of the intercooling air inlet pipe during working is further enhanced through repeated operation of the heat treatment.
Description
Technical Field
The invention relates to the technical field of air inlet pipes, in particular to a manufacturing and forming method of a stainless steel intercooling air inlet pipe.
Background
The turbocharger is actually an air compressor that increases the intake air amount by compressing air. The engine uses the inertia impulse force of the exhaust gas from the engine to push the turbine in the turbine chamber, the turbine drives the coaxial impeller, the impeller presses the air sent by the air filter pipeline, and the air is pressurized and enters the cylinder. When the rotating speed of the engine is increased, the exhaust gas exhaust speed and the rotating speed of the turbine are also increased synchronously, the impeller compresses more air to enter the air cylinder, the pressure and the density of the air are increased, more fuel can be combusted, and the output power of the engine can be increased by correspondingly increasing the fuel quantity and adjusting the rotating speed of the engine. The high temperature air compressed in the turbocharger is directly sent to the intercooler.
The traditional intercooling air inlet pipe usually needs to have enough tolerance to high-temperature air when in use, and ensures that low-temperature air is not broken when the interval of continuously receiving the high-temperature air is met, but the traditional intercooling air inlet pipe usually can only resist the high-temperature air in a short time, and the intercooling air inlet pipe is easy to rust and crack when in long-time use, so that the use safety is affected.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for manufacturing and molding a stainless steel intercooling air inlet pipe, which solves the problems that the traditional intercooling air inlet pipe is always required to have enough tolerance to high-temperature air when in use, and the low-temperature air is not broken when the interval of continuously receiving the high-temperature air is ensured, but the traditional intercooling air inlet pipe is only resistant to the high-temperature air in a short time, and the intercooling air inlet pipe is easy to rust and crack when in long-term use, so that the use safety is influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a manufacturing and forming method of a stainless steel intercooling air inlet pipe comprises the following steps:
step 1: preparation stage of common mechanical equipment: after the functions of the equipment are detected, starting the equipment to enter a standby state, basically detecting materials participating in work, rejecting unqualified materials, and rechecking the materials after rejection;
step 2: heating, forming and testing the intercooling air inlet pipe; screening out iron, carbon, silicon, nickel, chromium, tantalum and niobium, filling the iron and the carbon in related materials into a sealed smelting furnace, closing a furnace door, raising the temperature to 1300-;
and step 3: and (3) testing operation of the intercooling air inlet pipe: placing the taken out intercooling air inlet pipe into an air leakage testing device, carrying out air leakage detection on the intercooling air inlet pipe in a blank state, detecting the shape of the intercooling air inlet pipe, completely removing unqualified products, and keeping qualified products for later use;
and 4, step 4: and (3) high-temperature heat treatment of the intercooling inlet pipe: putting qualified products into a high-temperature resistant container, heating the blank-state intercooling air inlet pipe to 1200 ℃ within 3-5 minutes, preserving heat for 1-5 minutes, putting the high-temperature intercooling air inlet pipe into low-temperature water, and repeating the operation once when the temperature of the intercooling air inlet pipe is reduced to below 700 ℃, and then eliminating unqualified products such as cracks on the surface of the intercooling air inlet pipe;
and 5: and (3) polishing the surface of the intercooling air inlet pipe: polishing burrs on the surface of the middle-cooling air inlet pipe, then comprehensively polishing the surface of the middle-cooling air inlet pipe by using high-grade polishing abrasive paper, stopping polishing when the surface of the middle-cooling air inlet pipe is smooth in hand feeling, then starting inspection, and removing defective products;
step 6: high-order polishing treatment of the inner surface of the intercooling air inlet pipe: placing the cold air inlet pipe on a rotary platform, opening the rotary platform, polishing the interior of the cold air inlet pipe by using a polishing device, and recovering the device after polishing is finished;
and 7: final correlation operation of intercooling intake pipe: and welding the polished intercooling air inlet pipe, then carrying out dust-free packaging on the welded intercooling air inlet pipe, and then transferring to a warehouse.
Preferably, in the step 2, after the door is closed, the temperature needs to be raised to the predetermined temperature within 1 minute.
Preferably, in the step 2, the temperature in the sealed smelting furnace is monitored by an infrared thermometer.
Preferably, in said step 2, when the molten metal melt is taken out, the worker must be wearing protective clothing.
Preferably, in step 2, the worker must hold the robot arm to operate the mold.
Preferably, in the step 4, the intercooling gas inlet pipe with high temperature is put into the distilled water low-temperature water.
Preferably, in step 7, the intercooling air inlet pipe is packaged by a buffer airbag on the outside.
Preferably, in the step 5, the high-grade abrasive paper is at least 2000-mesh abrasive paper.
(III) advantageous effects
The invention provides a method for manufacturing and molding a stainless steel intercooling inlet pipe. Compared with the prior art, the method has the following beneficial effects:
(1) the manufacturing and forming method of the stainless steel intercooling inlet pipe comprises the following steps of 3: and (3) testing operation of the intercooling air inlet pipe: placing the taken out intercooling air inlet pipe into an air leakage testing device, carrying out air leakage detection on the intercooling air inlet pipe in a blank state, detecting the shape of the intercooling air inlet pipe, completely removing unqualified products, and keeping qualified products for later use; and 4, step 4: and (3) high-temperature heat treatment of the intercooling inlet pipe: putting qualified products into a high-temperature resistant container, heating a blank-state intercooling air inlet pipe to 1200 ℃ within 3-5 minutes, preserving heat for 1-5 minutes, putting the high-temperature intercooling air inlet pipe into low-temperature water, repeating the operation once when the temperature of the intercooling air inlet pipe is reduced to below 700 ℃, removing unqualified products such as cracks on the surface of the intercooling air inlet pipe, performing comprehensive air leakage detection on the blank-state intercooling air inlet pipe through the combined arrangement of the step 3 and the step 4, effectively avoiding air leakage products from flowing out of a production line, improving the qualification rate of products at the later stage, avoiding the expansion of cracks caused by long-term high temperature when the products are used, effectively improving the operating efficiency of the intercooling air inlet pipe through the heat treatment of the blank-state intercooling air inlet pipe, and performing the repeated operation of the heat treatment, the stability of the intercooling inlet pipe in operation is further enhanced.
(2) The manufacturing and forming method of the stainless steel intercooling inlet pipe comprises the following steps: and (3) polishing the surface of the intercooling air inlet pipe: polishing burrs on the surface of the middle-cooling air inlet pipe, then comprehensively polishing the surface of the middle-cooling air inlet pipe by using high-grade polishing abrasive paper, stopping polishing when the surface of the middle-cooling air inlet pipe is smooth in hand feeling, then starting inspection, and removing defective products; step 6: high-order polishing treatment of the inner surface of the intercooling air inlet pipe: placing the centering cold intake pipe on rotary platform, open rotary platform, then use grinding device to polish to the inside of the centering cold intake pipe, the back of finishing of polishing, restore the device, through the joint setting of step 5 and step 6, polish through the surface of centering cold intake pipe, further the work satisfaction of intercooling intake pipe that has improved, and the surface through intercooling intake pipe is felt and is gone to judge whether to continue polishing, make things convenient for staff's operation, through polishing to the intake pipe internal surface, the reliability of product has further been improved, whole work step is clear in addition, convenient operation and maintenance.
(3) The manufacturing and forming method of the stainless steel intercooling inlet pipe comprises the following steps of: heating, forming and testing the intercooling air inlet pipe; screening out iron, carbon, silicon, nickel, chromium, tantalum and niobium, filling the iron and the carbon in related materials into a sealed smelting furnace, closing a furnace door, raising the temperature to 1300-: final correlation operation of intercooling intake pipe: welding treatment is carried out on the intercooling air inlet pipe after polishing is finished, then dust-free packaging is carried out on the intercooling air inlet pipe after welding, then the intercooling air inlet pipe is turned into a warehouse, through the combined setting of the step 1, the step 2 and the step 7, splashing of materials in the heating process is avoided through sealed heating of the materials, the personal safety degree of workers is improved, and through buffer packaging, loss caused by collision of the products is further avoided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the attached tables in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to table 1, the embodiment of the present invention provides three technical solutions: a manufacturing and forming method of a stainless steel intercooling air inlet pipe specifically comprises the following embodiments:
example 1
Step 1: preparation stage of common mechanical equipment: after the functions of the equipment are detected, starting the equipment to enter a standby state, basically detecting materials participating in work, rejecting unqualified materials, and rechecking the materials after rejection;
step 2: heating, forming and testing the intercooling air inlet pipe; screening out iron, carbon, silicon, nickel, chromium, tantalum and niobium, filling the iron and the carbon in related materials into a sealed smelting furnace, closing a furnace door, raising the temperature to 1300 ℃, keeping the temperature in the sealed smelting furnace at 5 ℃, taking out the insulated molten iron, pouring molten metal melt into a smelting mold, and taking out a product in the mold for later use when the mold is cooled to room temperature;
and step 3: and (3) testing operation of the intercooling air inlet pipe: placing the taken out intercooling air inlet pipe into an air leakage testing device, carrying out air leakage detection on the intercooling air inlet pipe in a blank state, detecting the shape of the intercooling air inlet pipe, completely removing unqualified products, and keeping qualified products for later use;
and 4, step 4: and (3) high-temperature heat treatment of the intercooling inlet pipe: putting qualified products into a high-temperature resistant container, heating the blank-state intercooling air inlet pipe to 1200 ℃ within 3 minutes, preserving heat for 1 minute, putting the high-temperature intercooling air inlet pipe into low-temperature water, and repeating the operation once when the temperature of the intercooling air inlet pipe is reduced to below 700 ℃, and then eliminating unqualified products such as cracks on the surface of the intercooling air inlet pipe;
and 5: and (3) polishing the surface of the intercooling air inlet pipe: polishing burrs on the surface of the middle-cooling air inlet pipe, then comprehensively polishing the surface of the middle-cooling air inlet pipe by using high-grade polishing abrasive paper, stopping polishing when the surface of the middle-cooling air inlet pipe is smooth in hand feeling, then starting inspection, and removing defective products;
step 6: high-order polishing treatment of the inner surface of the intercooling air inlet pipe: placing the cold air inlet pipe on a rotary platform, opening the rotary platform, polishing the interior of the cold air inlet pipe by using a polishing device, and recovering the device after polishing is finished;
and 7: final correlation operation of intercooling intake pipe: and welding the polished intercooling air inlet pipe, then carrying out dust-free packaging on the welded intercooling air inlet pipe, and then transferring to a warehouse.
Example 2
Step 1: preparation stage of common mechanical equipment: after the functions of the equipment are detected, starting the equipment to enter a standby state, basically detecting materials participating in work, rejecting unqualified materials, and rechecking the materials after rejection;
step 2: heating, forming and testing the intercooling air inlet pipe; screening out iron, carbon, silicon, nickel, chromium, tantalum and niobium, filling the iron and the carbon in related materials into a sealed smelting furnace, closing a furnace door, raising the temperature to 1350 ℃, keeping the temperature in the sealed smelting furnace for 7.5 minutes, taking out the insulated molten iron, pouring molten metal melt into a smelting mold, and taking out a product in the mold for later use when the mold is cooled to room temperature;
and step 3: and (3) testing operation of the intercooling air inlet pipe: placing the taken out intercooling air inlet pipe into an air leakage testing device, carrying out air leakage detection on the intercooling air inlet pipe in a blank state, detecting the shape of the intercooling air inlet pipe, completely removing unqualified products, and keeping qualified products for later use;
and 4, step 4: and (3) high-temperature heat treatment of the intercooling inlet pipe: putting qualified products into a high-temperature resistant container, heating the blank-state intercooling air inlet pipe to 1200 ℃ within 4 minutes, preserving heat for 2.5 minutes, putting the high-temperature intercooling air inlet pipe into low-temperature water, and repeating the operation once when the temperature of the intercooling air inlet pipe is reduced to below 700 ℃, and then eliminating unqualified products such as cracks on the surface of the intercooling air inlet pipe;
and 5: and (3) polishing the surface of the intercooling air inlet pipe: polishing burrs on the surface of the middle-cooling air inlet pipe, then comprehensively polishing the surface of the middle-cooling air inlet pipe by using high-grade polishing abrasive paper, stopping polishing when the surface of the middle-cooling air inlet pipe is smooth in hand feeling, then starting inspection, and removing defective products;
step 6: high-order polishing treatment of the inner surface of the intercooling air inlet pipe: placing the cold air inlet pipe on a rotary platform, opening the rotary platform, polishing the interior of the cold air inlet pipe by using a polishing device, and recovering the device after polishing is finished;
and 7: final correlation operation of intercooling intake pipe: and (4) carrying out trace connection treatment on the polished intercooling air inlet pipe, carrying out dust-free packaging on the welded intercooling air inlet pipe, and then transferring to a warehouse.
Example 3
Step 1: preparation stage of common mechanical equipment: after the functions of the equipment are detected, starting the equipment to enter a standby state, basically detecting materials participating in work, rejecting unqualified materials, and rechecking the materials after rejection;
step 2: heating, forming and testing the intercooling air inlet pipe; screening out iron, carbon, silicon, nickel, chromium, tantalum and niobium, filling the iron and the carbon in related materials into a sealed smelting furnace, closing a furnace door, raising the temperature to 1400 ℃, keeping the temperature in the sealed smelting furnace for 10 minutes, taking out the insulated molten iron, pouring molten metal melt into a smelting mold, and taking out a product in the mold for later use when the mold is cooled to room temperature;
and step 3: and (3) testing operation of the intercooling air inlet pipe: placing the taken out intercooling air inlet pipe into an air leakage testing device, carrying out air leakage detection on the intercooling air inlet pipe in a blank state, detecting the shape of the intercooling air inlet pipe, completely removing unqualified products, and keeping qualified products for later use;
and 4, step 4: and (3) high-temperature heat treatment of the intercooling inlet pipe: putting qualified products into a high-temperature resistant container, heating the blank-state intercooling air inlet pipe to 1200 ℃ within 5 minutes, preserving heat for 5 minutes, putting the high-temperature intercooling air inlet pipe into low-temperature water, and repeating the operation once when the temperature of the intercooling air inlet pipe is reduced to below 700 ℃, and then eliminating unqualified products such as cracks on the surface of the intercooling air inlet pipe;
and 5: and (3) polishing the surface of the intercooling air inlet pipe: polishing burrs on the surface of the middle-cooling air inlet pipe, then comprehensively polishing the surface of the middle-cooling air inlet pipe by using high-grade polishing abrasive paper, stopping polishing when the surface of the middle-cooling air inlet pipe is smooth in hand feeling, then starting inspection, and removing defective products;
step 6: high-order polishing treatment of the inner surface of the intercooling air inlet pipe: placing the cold air inlet pipe on a rotary platform, opening the rotary platform, polishing the interior of the cold air inlet pipe by using a polishing device, and recovering the device after polishing is finished;
and 7: final correlation operation of intercooling intake pipe: and (4) carrying out trace connection treatment on the polished intercooling air inlet pipe, carrying out dust-free packaging on the welded intercooling air inlet pipe, and then transferring to a warehouse.
And those not described in detail in this specification are well within the skill of those in the art.
Through the combined arrangement of the step 3 and the step 4, the leakage product is effectively prevented from flowing out of the production line by carrying out comprehensive leakage detection on the intercooling air inlet pipe in a blank state, the qualification rate of the product in the later stage is improved, the crack expansion caused by long-term high temperature when the product is used is avoided, the operating efficiency of the intercooling air inlet pipe is effectively improved through the heat treatment on the intercooling air inlet pipe in the blank state, the stability degree of the intercooling air inlet pipe in work is further enhanced through the repeated operation of the heat treatment, the work satisfaction degree of the intercooling air inlet pipe is further improved through the combined arrangement of the step 5 and the step 6 and through the surface polishing of the intercooling air inlet pipe, and whether the polishing is continued or not is judged through the surface hand feeling of the intercooling air inlet pipe, so that the operation of a worker is facilitated, and the, in addition, the whole working steps are clear, the operation and the maintenance are convenient, through the combined arrangement of the step 1, the step 2 and the step 7, the splashing of the materials in the heating process is avoided through the sealed heating of the materials, the personal safety degree of workers is improved, the loss of products caused by collision is further avoided through the buffer packaging, in the step 2, after a furnace door is closed, the temperature needs to be raised to a preset temperature within 1 minute, in the step 2, the temperature in the sealed smelting furnace is monitored by an infrared thermometer, in the step 2, when the molten metal is taken out, the workers need to melt and protect clothes, in the step 2, the workers need to hold a mechanical arm to operate a mold, in the step 4, the high-temperature intercooling air inlet pipe is placed into distilled water with low temperature, in the step 7, the intercooling air inlet pipe is packaged by a buffer air bag outside, in step 5, the high-grade abrasive paper is at least 2000-mesh abrasive paper.
Comparative experiment
According to claim 1, an existing manufacturer can produce three kinds of intercooling air inlet pipes, after the three kinds of intercooling air inlet pipes are subjected to cleaning treatment, comparison experiments of service life and high temperature tolerance are carried out on the three kinds of intercooling air inlet pipes and an ordinary intercooling air inlet pipe, as shown in table 1, the shortest service life in three embodiments is 4.5 years after laboratory tests, the service life is increased by 0.7 years compared with the comparison example, the lowest tolerant highest temperature in the embodiments is 698 ℃, and the tolerant highest temperature in the embodiments is increased by 75 ℃ compared with the comparison example.
Table 1: comparative table of service life and high temperature resistance
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A manufacturing and forming method of a stainless steel intercooling inlet pipe is characterized by comprising the following steps: the method specifically comprises the following steps:
step 1: preparation stage of common mechanical equipment: after the functions of the equipment are detected, starting the equipment to enter a standby state, basically detecting materials participating in work, rejecting unqualified materials, and rechecking the materials after rejection;
step 2: heating, forming and testing the intercooling air inlet pipe; screening out iron, carbon, silicon, nickel, chromium, tantalum and niobium, filling the iron and the carbon in related materials into a sealed smelting furnace, closing a furnace door, raising the temperature to 1300-;
and step 3: and (3) testing operation of the intercooling air inlet pipe: placing the taken out intercooling air inlet pipe into an air leakage testing device, carrying out air leakage detection on the intercooling air inlet pipe in a blank state, detecting the shape of the intercooling air inlet pipe, completely removing unqualified products, and keeping qualified products for later use;
and 4, step 4: and (3) high-temperature heat treatment of the intercooling inlet pipe: putting qualified products into a high-temperature resistant container, heating the blank-state intercooling air inlet pipe to 1200 ℃ within 3-5 minutes, preserving heat for 1-5 minutes, putting the high-temperature intercooling air inlet pipe into low-temperature water, and repeating the operation once when the temperature of the intercooling air inlet pipe is reduced to below 700 ℃, and then eliminating unqualified products such as cracks on the surface of the intercooling air inlet pipe;
and 5: and (3) polishing the surface of the intercooling air inlet pipe: polishing burrs on the surface of the middle-cooling air inlet pipe, then comprehensively polishing the surface of the middle-cooling air inlet pipe by using high-grade polishing abrasive paper, stopping polishing when the surface of the middle-cooling air inlet pipe is smooth in hand feeling, then starting inspection, and removing defective products;
step 6: high-order polishing treatment of the inner surface of the intercooling air inlet pipe: placing the cold air inlet pipe on a rotary platform, opening the rotary platform, polishing the interior of the cold air inlet pipe by using a polishing device, and recovering the device after polishing is finished;
and 7: final correlation operation of intercooling intake pipe: and welding the polished intercooling air inlet pipe, then carrying out dust-free packaging on the welded intercooling air inlet pipe, and then transferring to a warehouse.
2. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: in the step 2, after the furnace door is closed, the temperature needs to be raised to the preset temperature within 1 minute.
3. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: in the step 2, the temperature in the sealed smelting furnace is monitored by an infrared thermometer.
4. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: in step 2, when the molten metal melt is taken out, the worker must be wearing protective clothing.
5. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: in step 2, the worker must hold the manipulator to operate the mold.
6. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: and in the step 4, putting the high-temperature intercooling air inlet pipe into the distilled water low-temperature water.
7. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: and 7, packaging the intercooling air inlet pipe by adopting a buffer air bag at the outer part.
8. The manufacturing and forming method of the stainless steel intercooling inlet pipe as claimed in claim 1, wherein the method comprises the following steps: in the step 5, the high-grade abrasive paper is at least 2000-mesh abrasive paper.
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Application publication date: 20210126 |
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