CN111112373A - Production process and processing equipment of high-strength corrosion-resistant stainless steel seamless steel pipe - Google Patents
Production process and processing equipment of high-strength corrosion-resistant stainless steel seamless steel pipe Download PDFInfo
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- CN111112373A CN111112373A CN202010120259.5A CN202010120259A CN111112373A CN 111112373 A CN111112373 A CN 111112373A CN 202010120259 A CN202010120259 A CN 202010120259A CN 111112373 A CN111112373 A CN 111112373A
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- 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
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
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- 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
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
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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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/081—Iron or steel solutions containing H2SO4
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a production process and processing equipment of a high-strength corrosion-resistant stainless steel seamless steel pipe, which comprises a frame body, wherein a power box is arranged on one side of the bottom end of the frame body; the inner side of the bottom end of the frame body is provided with a sliding chute, two telescopic rods are symmetrically embedded in the upper surface of the sliding chute through the sliding chute, and the upper end surfaces of the telescopic rods are respectively connected with a fixed pipe arc in a penetrating and rotating mode; the electric screw rod is fixedly arranged at the middle position of the rear end face of the clamping ring at the front end of the electric screw rod, and the electric screw rod is driven by electric power through the motor. According to the invention, the spraying and sweeping ring, the snap ring, the internal sweeping area and other structures are arranged, and the mechanical drying is carried out according to the degreasing process, so that the problem of uneven wind distribution caused by manual drying is avoided; through mechanical structure intelligence response provide the whole degree of linking up of device, weather with the exterior structure jointly through inner structure, realize that inner wall and outer wall do work in step, the problem that consumes greatly when avoiding current structure to weather optimizes and uses experience.
Description
Technical Field
The invention relates to the technical field of seamless steel pipe production and processing, in particular to a production process and processing equipment of a high-strength corrosion-resistant stainless steel seamless steel pipe.
Background
Seamless steel pipes are steel pipes made of a single piece of metal without seams on the surface, and are divided into hot rolled pipes, cold drawn pipes, extruded pipes, push pipes, and the like according to the production method; the seamless steel pipe is divided into a round shape and a special shape according to the shape of a section, and the special-shaped pipe has various complex shapes such as a square shape, an oval shape, a triangular shape, a hexagonal shape, a melon seed shape, a star shape and a pipe with fins; the maximum diameter of the seamless steel tube reaches 650mm, and the minimum diameter is 0.3 mm; according to different purposes, the pipe has thick-wall pipe and thin-wall pipe; the seamless steel pipe is mainly used as a petroleum geology drill pipe, a cracking pipe for petrochemical industry, a boiler pipe, a bearing pipe, a high-precision structural steel pipe for automobiles, tractors, aviation and the like, and has excellent use experience, so that the demand of the seamless steel pipe is increased day by day, the seamless steel pipe becomes one of the most popular pipes in the market, and along with the increasing of the industrialization level of China, the vigorous development of industrial projects such as petrochemical industry, natural gas, medical equipment, instruments and meters, aviation, aerospace and the like, the technological requirement on the stainless steel pipe is also increased day by day.
If the cleanliness in the pipeline is high, the oxygen pipeline mostly transmits oxygen with the purity of more than 99.99 percent, the pressure is high, the flow rate is high, if the cleanness in the pipeline cannot be ensured, trace oil stains and metal ions in the pipeline can be oxidized and collided with high-pressure pure oxygen, electric sparks are generated, serious consequences which are unreasonable are caused, and even disastrous accidents are caused; therefore, the degreasing step is an important part in the production process of the seamless steel tube, the degreasing step is a working mode of repeatedly washing with water, performing miscellaneous acid washing, neutralizing and passivating, and finally introducing grease-free air to realize drying inside and outside, but the conventional seamless steel tube production process still uses manual drying in degreasing, and cannot ensure uniform wind; degreasing equipment need carry out the outer wall respectively and weather with the inner wall, and time consumption is great, influences the problem that uses the experience.
Disclosure of Invention
The invention aims to provide a production process and processing equipment of a high-strength corrosion-resistant stainless steel seamless steel tube, which solves the problem that the existing seamless steel tube production process still uses manual blow-drying in degreasing, and cannot ensure uniform wind; degreasing equipment need carry out the outer wall respectively and weather with the inner wall, and time consumption is great, influences the problem that uses the experience.
In order to achieve the purpose, the invention provides the following technical scheme: the seamless steel pipe comprises a 06Cr18Ni11Ti seamless steel pipe, and is characterized by comprising the following processing steps:
A) preparing a pipe blank, namely manufacturing a round steel pipe blank by processes of ironmaking, steelmaking, ingot casting, cogging, rolling round steel and the like;
B) b, blank inspection and fixed cutting, wherein the round steel tube blank in the step A is inspected, and fixed cutting treatment is carried out after the condition that the tube blank has no obvious raw material problems such as trauma or surface depression is confirmed;
C) b, heating the blank, namely conveying the blank cut in the step B into a smelting furnace through a conveying belt for heating, conveying the billet into the smelting furnace for heating, wherein the heating temperature is 1000-1200 ℃, and the fuel is hydrogen or acetylene;
D) hot rolling and perforating, namely performing hot rolling and perforation on the blank heated in the step C by a pressure perforating machine and other equipment, wherein the perforating machine adopts a conical roller perforating machine;
E) heading, namely heading the perforated pipe material, and then putting the pipe material into a capillary storage;
F) d, acid washing, namely soaking the pipe material in the step E into an acid solution to generate a chemical reaction, and then washing the pipe material by using pressure water;
G) c, polishing, namely inspecting the tube material subjected to the pickling in the step E, and performing targeted point polishing on defects on the surface of the tube material;
H) lubricating and baking, namely fixing the polished pipe material on an oiling machine, rotationally oiling the inner surface and the outer surface by using a brush, and baking the pipe material coated with lubricating oil to ensure that the oil is dry;
I) cold rolling (drawing), wherein the pipe material obtained in the step G is subjected to cold rolling or cold drawing according to the requirement;
J) degreasing, namely degreasing the cold-drawn or cold-rolled pipe material by using the processes of degreasing, water flushing, acid washing, water flushing, neutralization, passivation, water flushing, drying and the like;
K) solution treatment, namely performing solution treatment on the cold-rolled and drawn steel pipe, and recovering the corrosion resistance of the steel pipe to the optimal state after the solution treatment;
l) sampling physicochemical, namely sampling the steel pipes in batches in proportion and carrying out physicochemical test;
m) straightening and reaming, wherein straightening and reaming are carried out on the batch of steel pipes which are qualified in physicochemical property;
n) cutting the pipe, and performing head-to-tail pipe cutting treatment on the treated pipe material;
o) surface and dimension inspection, wherein appearance detection is carried out on the surface, and dimension measurement is carried out on the dimension, so that the condition that the surface meets the customer standard is ensured;
p) performing flaw detection on the pipe materials, performing eddy current flaw detection and ultrasonic flaw detection on qualified pipe materials, and determining that the pipe materials have no internal damage;
and Q) packaging and warehousing, and packaging and warehousing the qualified tube materials for flaw detection.
The degreasing process comprises the following steps:
1) degreasing, namely heating and soaking the pipe by using degreasing liquid; the degreasing fluid formula comprises: each liter of solution contains 20-30g of sodium hydroxide, 35-50g of sodium nitrate and 2-5g of sodium silicate; the heating temperature is required to be 75-85 ℃, the heating mode is steam heating, the height of liquid is required to be 5-8 cm higher than the plane above the pipe fitting, and the degreasing time is at least ten minutes; after degreasing, wiping the surface of the degreased part by clean and dry white filter paper, and ensuring that oil-free stains on the paper are qualified.
2) Flushing, namely flushing the qualified degreased pipe fitting with clean water with the pressure of 0.8 MPa;
3) acid washing, namely, acid washing is carried out on the clean pipe obtained in the step 2 in either a sulfuric acid solution or a hydrochloric acid solution; the operation process of the sulfuric acid solution comprises the following steps: preparing a sulfuric acid solution with the solution concentration of 5-10%, heating the solution at the temperature of 60-80 ℃, and soaking the solution for 6-20 minutes; the hydrochloric acid solution pickling operation comprises the following steps: preparing a hydrochloric acid solution with the solution concentration of 5% -20%, heating and warm-taking to 20 ℃ -50 ℃, and soaking for 6-20 minutes; after acid washing, checking the surface of the pipe to remove rust tightly, and exposing the metal luster to be qualified;
4) flushing, namely flushing the qualified pipe fittings subjected to acid cleaning with clean water with the pressure of 0.8 MPa;
5) neutralizing, namely soaking the acid-washed pipe fittings flushed by water by using a neutralizing solution; the formula of the neutralization solution is as follows: a diluted ammonium hydroxide solution having a pH of 10-11; the operation process comprises the following steps: soaking for 3-5 minutes at normal temperature;
6) passivating, namely immediately passivating the neutralized pipe fitting by using a passivation solution, wherein the formula of the passivation solution is as follows: 7-10% of sodium nitrite and 2% of ammonium hydroxide; the passivation process comprises the following steps: soaking for 10 minutes at normal temperature;
7) flushing, namely flushing the passivated pipe fitting with purified water of 0.8 MPa;
8) drying, namely drying the pipe by using clean oil-free air or nitrogen; and (3) wiping the dried pipe by using white filter paper for inspection, wherein no grease trace is formed in intelligence quotient, the pipe is qualified by degreasing, and the pipe openings at two ends of the pipe are sealed by using plastic cloth and adhesive tapes.
Comprises a frame body, wherein a power box is arranged on one side of the bottom end of the frame body; the inner side of the bottom end of the frame body is provided with a sliding chute, two telescopic rods are symmetrically embedded in the upper surface of the sliding chute through the sliding chute, and the upper end surfaces of the telescopic rods are respectively connected with a fixed pipe arc in a penetrating and rotating mode; an electric screw rod is mounted on one side surface of the frame body in a penetrating mode, the front end of the electric screw rod is fixed in the middle of the rear end face of the clamping ring, and the electric screw rod is driven by electric power through a motor b; a second screw rod penetrates through the surface of the other side of the frame body, an internal sweeping area is fixed at the front end of the second screw rod, an electromagnetic valve b for controlling the transmission state is installed at the rear end of the internal sweeping area, and the second screw rod is driven by electric power through a motor a; a screw rod guide rail is vertically fixed on the upper end surface of the frame body, the screw rod guide rail realizes electric drive through a motor, an air transmission cavity is fixed on the surface of the screw rod guide rail through a slide block screw, an electromagnetic valve a used for controlling the transmission state is installed on the surface of the air transmission cavity, and a spraying and sweeping ring is screwed at the bottom end of the air transmission cavity; and the surface positions of the two ends of the lead screw guide rail are respectively provided with a limit switch.
An inflation area is arranged inside the spraying and sweeping ring, and air holes are formed in the inner wall surface of the inflation area; the bottom end of the internal sweeping area is fixed at the front end of the second screw rod through a connecting pipe, an opening used for installing an electromagnetic valve b is formed in the surface of the connecting pipe, an air outlet structure is convexly arranged on the surface of the internal sweeping area, and a light ray sensor is arranged on the surface of the air outlet structure.
The PLC is electrically installed inside the power box, the input end of the PLC is respectively connected with a switch, a limit switch, a light sensor, a displacement sensor and a position sensor group through a lead, the PLC is Siemens s7-200 programmable PLC, and the PLC is programmed and controlled through a programmer, wherein the programmer is an intelligent programmer; the switch is arranged on the surface of the power box, and the switch is a button switch; the limit switch is an ohm dragon non-contact limit switch and is used for detecting the position state of the sliding block and controlling the sliding block to move back and forth on the surface of the lead screw guide rail through PLC intelligent programming; the light sensor is an AMIS environment light sensor; the position sensor groups all adopt Margas position sensors; the output end of the PLC is connected with an electric screw rod and a second screw rod through a driving module a; the output end of the PLC is connected with an electric screw rod through a driving module b; the output end of the PLC is connected with a telescopic rod through a driving module c; the output end of the PLC is electrically connected with an electromagnetic valve a and an electromagnetic valve b through a relay a and a relay b respectively; the power port of the PLC is connected with an external switch through a voltage stabilizing module, the driving modules are all L298N model driving modules, the relays are all ohm dragon relays, and the electromagnetic valves are all ohm dragon electromagnetic valves.
The spraying and sweeping ring is made of circular aluminum alloy, and the bottom end of the spraying and sweeping ring is provided with an opening for connecting the gas transmission cavity; the inner wall radius of the spraying and sweeping ring is larger than the radius of the seamless steel pipe to be processed by 5cm-8 cm; the gas transmission cavity is made of tubular engineering plastics, is fixed on the surface of the sliding block through screws and is communicated with an external compressed air transmission pipe through a surface-mounted electromagnetic valve a.
The inner sweeping area is made of circular aluminum alloy, a double-layer concentric ring structure for fixing the outer wall of the seamless steel pipe is convexly arranged on the surface of the inner sweeping area, and the linear distance between the outer ring structure and the inner ring structure is greater than the wall thickness of the seamless steel pipe; the surface of the internal sweeping area is adhered with nitrile rubber, the internal sweeping area is fixed on the upper surface of the top end of the connecting pipe through screwing, and the top end of the internal sweeping area and the top end of the spraying ring are horizontally leveled; the connecting pipe is made of tubular engineering plastics and is fixed at the front end of the second screw rod in a screwing mode, and the connecting pipe is connected with an external compressed air transmission pipe through a surface-mounted electromagnetic valve b.
The clamping ring is made of aluminum alloy with a circular structure, the surface of the clamping ring is provided with a double-layer concentric ring structure with the same structure as that of the internal sweeping area, the periphery of the clamping ring connecting structure is provided with a ventilation ring, and the circle center positions of the clamping ring, the spraying and sweeping ring and the internal sweeping area are horizontally leveled; the position sensors are respectively arranged on the upper end surface of the spraying and sweeping ring and the middle part of the outer surface of the spraying and sweeping ring slightly below the spraying and sweeping ring, the upper end surface of the internal sweeping area and the upper end surface of the fixed pipe arc on one side of the spraying and sweeping ring, two position sensors are horizontally arranged on the upper end surface of the spraying and sweeping ring, and the position sensors are respectively used for sensing whether the positions of the spraying and sweeping ring and the clamping ring are level or not; whether the position of the spraying and sweeping ring is equal to that of the internal sweeping area or not; and if the bottom end position of the spraying and sweeping ring is equal to the position of the fixed pipe arc, and when the position of the spraying and sweeping ring is equal to the position of the fixed pipe arc, the seamless steel pipe can be sleeved in the spraying and sweeping ring.
The fixed pipe arc is made of arc-shaped aluminum alloy, nitrile rubber is adhered to the outer surface of the fixed pipe arc, the fixed pipe arc moves synchronously by moving the telescopic rod, and the telescopic rod stops extending and doing work when the induction position of the fixed pipe arc and the position of the spraying and sweeping ring are kept at the same time.
The screw rod guide rail is an SGX type electric screw rod guide rail; the electric screw rod is selected from a Thomson electric lifting screw rod; the second screw rod is of the same type as the electric screw rod, and the second screw rod and the electric screw rod are synchronously driven through the driving module.
The frame body is made of plate-shaped structural alloy steel, a sliding chute is fixed at the bottom end of the frame body through a screw, the frame bodies are symmetrically distributed at two ends of the sliding chute, and the linear distance between the frame bodies at the two ends is not less than 1.5 m; BML-DJ806 electric telescopic rod is selected for use to the telescopic link, and the telescopic link carries out synchronous drive through a drive module, and the upper end of this telescopic link is seted up the screw hole that is used for connecting solid tub arc.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the production process of the high-strength corrosion-resistant stainless steel seamless steel tube, the working connection of the degreasing structure is enhanced, degreasing and blow-drying are carried out through the mechanical structure, the defect of manual blow-drying in degreasing and working of the existing production process is overcome, and the overall quality of the seamless steel tube is improved.
2. According to the processing equipment for the production process of the high-strength corrosion-resistant stainless steel seamless steel tube, the sliding displacement is generated through a mechanical structure, and the displacement synchronous air supply is realized through the external end supply; set up inner structure and exterior structure dual and weather, avoid current structure inner wall and outer wall to weather respectively, drawback that time consumption is big.
Drawings
FIG. 1 is a schematic structural view of a seamless steel pipe processing apparatus according to the present invention;
FIG. 2 is a schematic view of the lead screw guide of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the spray-sweep ring of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the snap ring structure of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic view of the snap ring of FIG. 1 according to the present invention;
FIG. 6 is a schematic view of the tube-fixing arc structure shown in FIG. 1 according to the present invention;
FIG. 7 is a schematic view of the inside sweep structure of FIG. 1 according to the present invention;
FIG. 8 is a schematic view of the electrical connection of the present invention;
FIG. 9 is a flow chart of the seamless steel tube production process of the present invention.
In the figure: 1-chute, 2-frame, 3-screw rod guide rail, 4-motor, 5-limit switch, 6-slide block, 7-spraying sweeping ring, 71-inflation area, 72-air hole, 8-electric screw rod, 9-motor a, 10-snap ring, 101-air outlet hole, 102-light sensor, 103-connecting pipe, 104-transmission pipe, 11-telescopic column, 12-fixed pipe arc, 13-electric box, 131-PLC, 132-driving module a, 133-driving module b, 134-driving module c, 14-air transmission cavity, 15-motor b, 16-internal sweeping area, 17-second screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings 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 of the 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.
With reference to fig. 9, a process for producing a high-strength corrosion-resistant stainless steel seamless steel tube comprises a 06Cr18Ni11Ti seamless steel tube, and is characterized by comprising the following steps:
A) preparing a pipe blank, namely manufacturing a round steel pipe blank by processes of ironmaking, steelmaking, ingot casting, cogging, rolling round steel and the like;
B) b, blank inspection and fixed cutting, wherein the round steel tube blank in the step A is inspected, and fixed cutting treatment is carried out after the condition that the tube blank has no obvious raw material problems such as trauma or surface depression is confirmed;
C) b, heating the blank, namely conveying the blank cut in the step B into a smelting furnace through a conveying belt for heating, conveying the billet into the smelting furnace for heating, wherein the heating temperature is 1000-1200 ℃, and the fuel is hydrogen or acetylene;
D) hot rolling and perforating, namely performing hot rolling and perforation on the blank heated in the step C by a pressure perforating machine and other equipment, wherein the perforating machine adopts a conical roller perforating machine;
E) heading, namely heading the perforated pipe material, and then putting the pipe material into a capillary storage;
F) d, acid washing, namely soaking the pipe material in the step E into an acid solution to generate a chemical reaction, and then washing the pipe material by using pressure water;
G) c, polishing, namely inspecting the tube material subjected to the pickling in the step E, and performing targeted point polishing on defects on the surface of the tube material;
H) lubricating and baking, namely fixing the polished pipe material on an oiling machine, rotationally oiling the inner surface and the outer surface by using a brush, and baking the pipe material coated with lubricating oil to ensure that the oil is dry;
I) cold rolling (drawing), wherein the pipe material obtained in the step G is subjected to cold rolling or cold drawing according to the requirement;
J) degreasing, namely degreasing the cold-drawn or cold-rolled pipe material by using the processes of degreasing, water flushing, acid washing, water flushing, neutralization, passivation, water flushing, drying and the like;
K) solution treatment, namely performing solution treatment on the cold-rolled and drawn steel pipe, and recovering the corrosion resistance of the steel pipe to the optimal state after the solution treatment;
l) sampling physicochemical, namely sampling the steel pipes in batches in proportion and carrying out physicochemical test;
m) straightening and reaming, wherein straightening and reaming are carried out on the batch of steel pipes which are qualified in physicochemical property;
n) cutting the pipe, and performing head-to-tail pipe cutting treatment on the treated pipe material;
o) surface and dimension inspection, wherein appearance detection is carried out on the surface, and dimension measurement is carried out on the dimension, so that the condition that the surface meets the customer standard is ensured;
p) performing flaw detection on the pipe materials, performing eddy current flaw detection and ultrasonic flaw detection on qualified pipe materials, and determining that the pipe materials have no internal damage;
and Q) packaging and warehousing, and packaging and warehousing the qualified tube materials for flaw detection.
The degreasing process of the seamless steel tube comprises the following steps:
1) degreasing, namely heating and soaking the pipe by using degreasing liquid; the degreasing fluid formula comprises: each liter of solution contains 20-30g of sodium hydroxide, 35-50g of sodium nitrate and 2-5g of sodium silicate; the heating temperature is required to be 75-85 ℃, the heating mode is steam heating, the height of liquid is required to be 5-8 cm higher than the plane above the pipe fitting, and the degreasing time is at least ten minutes; after degreasing, wiping the surface of the degreased part by clean and dry white filter paper, and ensuring that oil-free stains on the paper are qualified.
2) Flushing, namely flushing the qualified degreased pipe fitting with clean water with the pressure of 0.8 MPa;
3) acid washing, namely, acid washing is carried out on the clean pipe obtained in the step 2 in either a sulfuric acid solution or a hydrochloric acid solution; the operation process of the sulfuric acid solution comprises the following steps: preparing a sulfuric acid solution with the solution concentration of 5-10%, heating the solution at the temperature of 60-80 ℃, and soaking the solution for 6-20 minutes; the hydrochloric acid solution pickling operation comprises the following steps: preparing a hydrochloric acid solution with the solution concentration of 5% -20%, heating and warm-taking to 20 ℃ -50 ℃, and soaking for 6-20 minutes; after acid washing, checking the surface of the pipe to remove rust tightly, and exposing the metal luster to be qualified;
4) flushing, namely flushing the qualified pipe fittings subjected to acid cleaning with clean water with the pressure of 0.8 MPa;
5) neutralizing, namely soaking the acid-washed pipe fittings flushed by water by using a neutralizing solution; the formula of the neutralization solution is as follows: a diluted ammonium hydroxide solution having a pH of 10-11; the operation process comprises the following steps: soaking for 3-5 minutes at normal temperature;
6) passivating, namely immediately passivating the neutralized pipe fitting by using a passivation solution, wherein the formula of the passivation solution is as follows: 7-10% of sodium nitrite and 2% of ammonium hydroxide; the passivation process comprises the following steps: soaking at normal temperature for 10 minutes
7) Flushing, namely flushing the passivated pipe fitting with purified water of 0.8 MPa;
8) drying, namely drying the pipe by using clean oil-free air or nitrogen; and (3) wiping the dried pipe by using white filter paper for inspection, wherein no grease trace is formed in intelligence quotient, the pipe is qualified by degreasing, and the pipe openings at two ends of the pipe are sealed by using plastic cloth and adhesive tapes.
With reference to the attached drawings 1-8, the processing equipment for the high-strength corrosion-resistant stainless steel seamless steel pipe comprises a frame body 2, wherein a power box 13 is installed on one side of the bottom end of the frame body 2; a chute 1 is installed at the inner side of the bottom end of the frame body 2, two telescopic rods 11 are symmetrically embedded in the upper surface of the chute 1 through the chute, and a pipe fixing arc 12 is respectively connected to the upper end surfaces of the telescopic rods 11 in a penetrating and rotating mode; an electric screw rod 8 is mounted on one side surface of the frame body 2 in a penetrating manner, the front end of the electric screw rod 8 is fixed in the middle of the rear end face of the clamping ring 16, and the electric screw rod 8 is driven by electric power through a motor b 15; a second screw rod 17 is installed on the other side surface of the frame body 2 in a penetrating manner, an internal sweeping area 10 is fixed at the front end of the second screw rod 17, an electromagnetic valve b for controlling the transmission state is installed at the rear end of the internal sweeping area 10, and the second screw rod 17 is electrically driven by a motor a 9; a screw rod guide rail 3 is vertically fixed on the upper end surface of the frame body 2, the screw rod guide rail 3 is electrically driven through a motor 4, an air transmission cavity 14 is fixed on the surface of the screw rod guide rail 3 through a slide block 6, an electromagnetic valve a for controlling the transmission state is installed on the surface of the air transmission cavity 14, and a spraying and sweeping ring 7 is screwed at the bottom end of the air transmission cavity 14; and the surface positions of the two ends of the screw rod guide rail 3 are respectively provided with a limit switch 5.
An inflation area 71 is arranged inside the spraying and sweeping ring 7, and the inner wall surface of the inflation area 71 is provided with an air hole 72; the bottom of sweeping district 10 in is passed through the connecting pipe 103 and is fixed at the front end of second lead screw 17, offers a trompil that is used for installing solenoid valve b on the surface of connecting pipe 103, including sweep the protruding structure 101 that is equipped with of surface in district 10, at the surface mounting who gives vent to anger structure 101 a light sensor 102, guarantees the linking performance of device, improves the intelligent experience of device, avoids the manpower resources extravagant, increases work linking degree.
The PLC131 is electrically installed inside the power box 13, the input end of the PLC131 is respectively connected with a switch, a limit switch 5, a light sensor 102, a displacement sensor and a position sensor group through leads, the PLC is Siemens 7-200 programmable PLC, and the PLC is programmed and controlled through a programmer, wherein the programmer is an intelligent programmer; the switch is arranged on the surface of the power box, and the switch is a button switch; the limit switch 5 is an ohm dragon non-contact limit switch, and the limit switch 5 is used for detecting the position state of the slide block 6 and controlling the slide block 6 to move back and forth on the surface of the lead screw guide rail 3 through PLC intelligent programming; the light sensor 102 is an AMIS ambient light sensor; the position sensor groups all adopt Margas position sensors; the output end of the PLC131 is connected with an electric screw rod 8 and a second screw rod 17 through a driving module a 132; the output end of the PLC131 is connected with an electric screw rod through a driving module b 133; the output end of the PLC131 is connected with a telescopic rod 11 through a driving module c 134; the output end of the PLC131 is electrically connected with an electromagnetic valve a and an electromagnetic valve b through a relay a and a relay b respectively; the power port of the PLC131 is connected with an external switch through a voltage stabilizing module, the driving modules are all L298N model driving modules, the relays are all ohm dragon relays, and the electromagnetic valves are all ohm dragon electromagnetic valves.
The spraying and sweeping ring 7 is made of circular aluminum alloy, and the bottom end of the spraying and sweeping ring 7 is provided with an opening for connecting the gas transmission cavity 14; the inflatable region 7 is formed inside the spraying and sweeping ring 7 through the opening, gas enters the inflatable region 71 through the gas transmission cavity 14, the gas inside the inflatable region 71 is sprayed through the vent holes 72, and the radius of the inner wall of the spraying and sweeping ring 7 is 5cm-8cm larger than that of the seamless steel pipe to be processed; the air transmission cavity 14 is made of tubular engineering plastics, the air transmission cavity 14 is fixed on the surface of the sliding block 6 through screws, the air transmission cavity 14 is communicated with an external compressed air transmission pipe through a surface-mounted electromagnetic valve a, the drying performance of the outside of the device is guaranteed, the guide rail structure is used for conducting electrical movement, the moving uniformity of the device is improved, and the defect that the existing structure is not uniformly ventilated is overcome.
The inner sweeping area 10 is made of circular aluminum alloy, a double-layer concentric ring structure for fixing the outer wall of the seamless steel pipe is convexly arranged on the surface of the inner sweeping area 10, and the linear distance between the outer ring structure and the inner ring structure is greater than the wall thickness of the seamless steel pipe; the surface of the internal sweeping area 10 is adhered with nitrile rubber, the internal sweeping area 10 is fixed on the upper surface of the top end of the connecting pipe 103 through screwing, and the top end of the internal sweeping area 10 and the top end of the spraying and sweeping ring 7 are horizontally leveled; the connecting pipe 103 is made of tubular engineering plastics, the connecting pipe 103 is fixed at the front end of the second screw rod 17 in a screwing mode, the connecting pipe 13 is connected with an external compressed air transmission pipe through a surface-mounted electromagnetic valve b, the internal air transmission performance of the device is guaranteed, and the defect that the existing structure cannot guarantee blow-drying uniformity due to manual blow-drying is avoided.
The clamping ring 16 is made of aluminum alloy with a circular structure, the surface of the clamping ring 16 is provided with a double-layer concentric ring structure with the same structure as the internal sweeping area 10, the periphery of the connecting structure of the clamping ring 16 is provided with a vent ring, and the circle center positions of the clamping ring 16, the spraying and sweeping ring 7 and the internal sweeping area 10 are horizontally leveled; the position sensors are respectively arranged at the lower positions of the middle parts of the upper end surface and the outer surface of the spraying and sweeping ring 7, the upper end surface of the internal sweeping area 10 and the upper end surface of the fixed pipe arc 12 at one side, two position sensors are horizontally arranged on the upper end surface of the spraying and sweeping ring 7, and the position sensors are respectively used for sensing whether the positions of the spraying and sweeping ring 7 and the clamping ring 16 are equal or not; whether the position of the spraying and sweeping ring 7 is equal to the position of the internal sweeping area 10 or not; whether the bottom end position of the spraying and sweeping ring 7 is equal to the position of the fixed pipe arc 12 or not, when the position of the spraying and sweeping ring 7 is equal to the position of the fixed pipe arc 12, the seamless steel pipe can be sleeved in the spraying and sweeping ring 7, the position certainty of the device is guaranteed, the working deviation caused by the fact that the position cannot be fixed is avoided, and a foundation is laid for outer end blow-drying and inner blow-drying.
The fixed pipe arc 12 is made of arc-shaped aluminum alloy, nitrile rubber is adhered to the outer surface of the fixed pipe arc 12, the fixed pipe arc 12 moves synchronously by moving the telescopic rod 11, the fixed pipe arc 12 keeps the position of the spraying and sweeping ring 7 at the induction position and the position of the spraying and sweeping ring 7 at ordinary times, the telescopic rod 11 stops extending to work, the placement performance of the device is ensured, the overall use experience and the conveying effect of the device are improved, and stable feeding and working are achieved through bottom end conveying.
The screw guide rail 3 is an SGX type electric screw guide rail; the electric screw rod 8 is an electric lifting screw rod of metolac; the second lead screw 17 selects the same model as the electric lead screw 8, the second lead screw 17 and the electric lead screw 8 are synchronously driven through the driving module, the bidirectional synchronous tightness of the device is ensured, a foundation is laid for drying inside and outside simultaneously, and the defect that the existing structure needs to be dried inside and outside respectively is avoided.
The frame body 2 is made of plate-shaped structural alloy steel, a sliding chute 1 is fixed at the bottom end of the frame body 2 through a screw, the frame bodies 2 are symmetrically distributed at two ends of the sliding chute 1, and the linear distance between the frame bodies 2 at two ends is not less than 1.5 m; BML-DJ806 electric telescopic rod is selected for use to telescopic link 11, and telescopic link 11 carries out synchronous drive through a drive module, and the screw hole that is used for connecting solid tub arc 12 is offered to the upper end of this telescopic link 11, guarantees the whole connectivity of device, improves the whole transmission performance of device, and the optimization uses and experiences.
All parts used in the application document are standard parts, the specific connection mode of all parts adopts conventional means such as mature bolts, welding and the like in the prior art, machinery, parts and electrical equipment adopt conventional models in the prior art, circuit connection adopts the conventional connection mode in the prior art, and detailed description is not given here.
According to the processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe, the PLC131 is set through programming, and the starting positions of the electric screw rod 8 and the second screw rod 17 are set to be the inner side wall of the frame body 2; setting the initial position of the telescopic column 11 to be in a fully-contracted state; setting the initial position of the screw rod guide rail 3 as the edge position of the internal scanning area 10 side; when the sensing position of the position sensor on the surface of the telescopic rod 11 and the position of the spraying and sweeping ring 7 are set to be kept flat, the position sensor feeds back a signal to the PLC131, the output end of the PLC131 acts as that the telescopic rod 11 stops extending, the electric screw rod 8 and the second screw rod 17 move oppositely when being electrified, and the sliding block 6 and the electric screw rod 8 move in the same direction; when the light sensor 102 is set to be incapable of sensing external light, the light sensor 102 feeds back a signal to the PLC131, the output end executes the action that the electric screw rod 8 and the second screw rod 17 stop moving forwards, the slide block 6 stops moving, the telescopic rod 11 retracts to the initial position, and the electromagnetic valve a and the electromagnetic valve b are adjusted to be in a connection state; when the opening state of the electromagnetic valve a is set, the PLC detects an action signal and controls the lead screw guide rail 3 to be conducted at the same time, and the slide block 6 moves to the end of the limit switch 5 at the other side; when the slide block 6 is set to move to the end of the limit switch 5 at the other side, the limit switch 5 is fed back to the PLC131, the output end performs action, the PLC131 controls the slide block 6 to move to the side of the electric screw rod 8, the position sensor senses the moving position of the slide block 6, the slide block stops at one side of the internal sweeping area 10, and the electromagnetic valve a and the electromagnetic valve b are adjusted to be in a closed state; setting the sliding block 6 to send a counting signal back and forth after one time, feeding the counting signal back to the PLC131, enabling the output end to act as the telescopic rod 11 to extend, enabling the PLC to receive the feedback signal when the position sensor senses that the position of the telescopic rod 11 and the position of the spraying and sweeping ring 7 are kept flat, enabling the output end to act as the electric screw rod 8 and the second screw rod 17 to retract to the initial position, and enabling the sliding block 6 to move to the initial position; when the slide block 6 is set to return to the initial position, a signal is fed back to the PLC131, and the output end acts as that the telescopic rod 11 is reset to the initial position.
Supplying power by an external control power supply, placing a seamless steel pipe to be dried on the upper surface of a fixed pipe arc 12, respectively connecting electromagnetic valves on the surfaces of an air transmission cavity 14 and a connecting pipe 103 with an external oil-free compressed air transmission pipe, pressing down a switch on the surface of a power box 13, extending a telescopic rod 11 to the equal-height position of a spraying and sweeping ring 7, stopping extending the telescopic rod 11, moving an electric screw 8 and a second screw 17 oppositely, simultaneously moving the electric screw 8 in the same direction by a sliding block 6, embedding and buckling one end of the seamless steel pipe into a double-layer annular structure on the surface of an internal sweeping area 10, embedding and buckling the other end of the seamless steel pipe into a double-layer annular structure on the surface of a buckling ring 16, blocking light sensed by a light sensor 102, failing to sense external light, stopping moving the electric screw 8 and the second screw 17, resetting the telescopic rod 11, and adjusting the electromagnetic valves a and, the air transmission is realized through air transmission chamber 14 and connecting pipe 103 respectively to the outside of switch-on does not have greasy dirt air transmission pipe, and realize one-way through the inside of venthole 10 transmission to the body and weather, slider 6 carries out linear motion this moment, the air realizes the periphery through spouting the bleeder vent 72 on sweeping ring 7 surface and weathers, slider 6 rolls over back to one side end of sweeping district 10 in and stops when removing to opposite side limit switch 5, solenoid valve a and solenoid valve b switch into the closed condition, telescopic link 11 extends to the side of keeping flat of spouting sweeping ring 7 simultaneously, electric lead screw 8 returns with second lead screw 17, slider 6 resets, the steel pipe returns to the surface of solid pipe arc 12, telescopic link 11 resets, the device is accomplished and is weathered and is done workly.
In summary, the following steps: according to the production process, the processing equipment and the processing equipment of the high-strength corrosion-resistant stainless steel seamless steel tube, the spraying and sweeping ring 7, the internal sweeping area 10, the snap ring 16, the lead screw guide rail 3, the electric lead screw 8 and the second lead screw are arranged, so that the defect of manual drying of the conventional oil removal and degreasing structure is overcome, and uniform air supply is realized; synchronous give the wind through exterior structure and inner structure, realize that the inner wall outer wall weathers simultaneously, reduce time consumption, improve and use experience.
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 (10)
1. A production process of a high-strength corrosion-resistant stainless steel seamless steel tube comprises a 06Cr18Ni11Ti seamless steel tube, and is characterized by comprising the following process steps:
A) preparing a pipe blank, namely manufacturing a round steel pipe blank by processes of ironmaking, steelmaking, ingot casting, cogging, rolling round steel and the like;
B) b, blank inspection and fixed cutting, wherein the round steel tube blank in the step A is inspected, and fixed cutting treatment is carried out after the condition that the tube blank has no obvious raw material problems such as trauma or surface depression is confirmed;
C) b, heating the blank, namely conveying the blank cut in the step B into a smelting furnace through a conveying belt for heating, conveying the billet into the smelting furnace for heating, wherein the heating temperature is 1000-1200 ℃, and the fuel is hydrogen or acetylene;
D) hot rolling and perforating, namely performing hot rolling and perforation on the blank heated in the step C by a pressure perforating machine and other equipment, wherein the perforating machine adopts a conical roller perforating machine;
E) heading, namely heading the perforated pipe material, and then putting the pipe material into a capillary storage;
F) d, acid washing, namely soaking the pipe material in the step E into an acid solution to generate a chemical reaction, and then washing the pipe material by using pressure water;
G) c, polishing, namely inspecting the tube material subjected to the pickling in the step E, and performing targeted point polishing on defects on the surface of the tube material;
H) lubricating and baking, namely fixing the polished pipe material on an oiling machine, rotationally oiling the inner surface and the outer surface by using a brush, and baking the pipe material coated with lubricating oil to ensure that the oil is dry;
I) cold rolling (drawing), wherein the pipe material obtained in the step G is subjected to cold rolling or cold drawing according to the requirement;
J) degreasing, namely degreasing the cold-drawn or cold-rolled pipe material by using the processes of degreasing, water flushing, acid washing, water flushing, neutralization, passivation, water flushing, drying and the like;
K) solution treatment, namely performing solution treatment on the cold-rolled (drawn) steel pipe, and recovering the corrosion resistance of the steel pipe to an optimal state after the solution treatment;
l) sampling physicochemical, namely sampling the steel pipes in batches in proportion and carrying out physicochemical test;
m) straightening and reaming, wherein straightening and reaming are carried out on the batch of steel pipes which are qualified in physicochemical property;
n) cutting the pipe, and performing head-to-tail pipe cutting treatment on the treated pipe material;
o) surface and dimension inspection, wherein appearance detection is carried out on the surface, dimension measurement is carried out on the dimension, and the composite customer is guaranteed;
p) performing flaw detection on the pipe materials, performing eddy current flaw detection and ultrasonic flaw detection on qualified pipe materials, and determining that the pipe materials have no internal damage;
and Q) packaging and warehousing, and packaging and warehousing the qualified tube materials for flaw detection.
2. The production process of the high-strength corrosion-resistant stainless steel seamless steel tube according to claim 1, characterized in that: the degreasing process comprises the following steps:
1) degreasing, namely heating and soaking the pipe by using degreasing liquid; the degreasing fluid formula comprises: each liter of solution contains 20-30g of sodium hydroxide, 35-50g of sodium nitrate and 2-5g of sodium silicate; the heating temperature is required to be 75-85 ℃, the heating mode is steam heating, the height of liquid is required to be 5-8 cm higher than the plane above the pipe fitting, and the degreasing time is at least ten minutes; after degreasing, wiping the surface of the degreased part by clean and dry white filter paper, and ensuring that oil-free stains on the paper are qualified.
2) Flushing, namely flushing the qualified degreased pipe fitting with clean water with the pressure of 0.8 MPa;
3) acid washing, namely, acid washing is carried out on the clean pipe obtained in the step 2 in either a sulfuric acid solution or a hydrochloric acid solution; the operation process of the sulfuric acid solution comprises the following steps: preparing a sulfuric acid solution with the solution concentration of 5-10%, heating the solution at the temperature of 60-80 ℃, and soaking the solution for 6-20 minutes; the hydrochloric acid solution pickling operation comprises the following steps: preparing a hydrochloric acid solution with the solution concentration of 5% -20%, heating and warm-taking to 20 ℃ -50 ℃, and soaking for 6-20 minutes; after acid washing, checking the surface of the pipe to remove rust tightly, and exposing the metal luster to be qualified;
4) flushing, namely flushing the qualified pipe fittings subjected to acid cleaning with clean water with the pressure of 0.8 MPa;
5) neutralizing, namely soaking the acid-washed pipe fittings flushed by water by using a neutralizing solution; the formula of the neutralization solution is as follows: a diluted ammonium hydroxide solution having a pH of 10-11; the operation process comprises the following steps: soaking for 3-5 minutes at normal temperature;
6) passivating, namely immediately passivating the neutralized pipe fitting by using a passivation solution, wherein the formula of the passivation solution is as follows: 7-10% of sodium nitrite and 2% of ammonium hydroxide; the passivation process comprises the following steps: soaking for 10 minutes at normal temperature;
7) flushing, namely flushing the passivated pipe fitting with purified water of 0.8 MPa;
8) drying, namely drying the pipe by using clean oil-free air or nitrogen; and (3) wiping the dried pipe by using white filter paper for inspection, wherein no grease trace is formed in intelligence quotient, the pipe is qualified by degreasing, and the pipe openings at two ends of the pipe are sealed by using plastic cloth and adhesive tapes.
3. A processing device of a high-strength corrosion-resistant stainless steel seamless steel pipe comprises a frame body (2), wherein a power box (13) is arranged on one side of the bottom end of the frame body (2); the frame is characterized in that a chute (1) is mounted on the inner side of the bottom end of the frame body (2), two telescopic rods (11) are symmetrically embedded in the upper surface of the chute (1) through the chute, and the upper end surfaces of the telescopic rods (11) are respectively connected with a pipe fixing arc (12) in a penetrating and rotating mode; an electric screw rod (8) is installed on one side surface of the frame body (2) in a penetrating mode, the front end of the electric screw rod (8) is fixed in the middle position of the rear end face of the clamping ring (16), and the electric screw rod (8) is driven by electric power through a motor b (15); a second screw rod (17) penetrates through the surface of the other side of the frame body (2), an internal sweeping area (10) is fixed at the front end of the second screw rod (17), an electromagnetic valve b for controlling the transmission state is installed at the rear end of the internal sweeping area (10), and the second screw rod (17) is driven by electric power through a motor a (9); a screw rod guide rail (3) is vertically fixed on the upper end face of the frame body (2), the screw rod guide rail (3) is electrically driven through a motor (4), an air transmission cavity (14) is fixed on the surface of the screw rod guide rail (3) through a sliding block (6) by a screw, an electromagnetic valve a for controlling the transmission state is installed on the surface of the air transmission cavity (14), and a spraying and sweeping ring (7) is screwed at the bottom end of the air transmission cavity (14); and the surface positions of the two ends of the screw rod guide rail (3) are respectively provided with a limit switch (5).
4. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: an inflation area (71) is arranged inside the spraying and sweeping ring (7), and the inner wall surface of the inflation area (71) is provided with air holes (72); the bottom end of the internal sweeping area (10) is fixed at the front end of the second screw rod (17) through a connecting pipe (103), an opening used for installing an electromagnetic valve b is formed in the surface of the connecting pipe (103), an air outlet structure (101) is convexly arranged on the surface of the internal sweeping area (10), and a light ray sensor (102) is arranged on the surface of the air outlet structure (101).
5. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: the power box (13) is internally and electrically provided with a PLC (131), the input end of the PLC (131) is respectively connected with a switch, a limit switch (5), a light sensor (102), a displacement sensor and a position sensor group through leads, the PLC is a Siemens s7-200 programmable PLC, and is programmed and controlled through a programmer, and the programmer is an intelligent programmer; the switch is arranged on the surface of the power box, and the switch is a button switch; the limiting switch (5) is an ohm dragon non-contact limiting switch, and the limiting switch (5) is used for detecting the position state of the sliding block (6) and controlling the sliding block (6) to move back and forth on the surface of the lead screw guide rail (3) through PLC intelligent programming; the light sensor (102) is an AMIS environment light sensor; the position sensor groups all adopt Margas position sensors; the output end of the PLC (131) is connected with an electric screw rod (8) and a second screw rod (17) through a driving module a (132); the output end of the PLC (131) is connected with an electric screw rod through a driving module b (133); the output end of the PLC (131) is connected with a telescopic rod (11) through a driving module c (134); the output end of the PLC (131) is electrically connected with an electromagnetic valve a and an electromagnetic valve b through a relay a and a relay b respectively; the power port of PLC (131) passes through voltage stabilizing module and connects external switch, and drive module all chooses for use L298N model drive module, and ohm dragon relay is all chosen for use to the relay, and ohm dragon solenoid valve is all chosen for use to the solenoid valve.
6. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: the spraying and sweeping ring (7) is made of circular aluminum alloy, and the bottom end of the spraying and sweeping ring (7) is provided with an opening for connecting the gas transmission cavity (14); the inflatable region (7) is formed inside the spraying and sweeping ring (7) through the opening, gas enters the inflatable region (71) through the gas transmission cavity (14), the gas inside the inflatable region (71) is sprayed through the vent holes (72), and the radius of the inner wall of the spraying and sweeping ring (7) is larger than the radius of the seamless steel pipe to be processed by 5cm-8 cm; the air transmission cavity (14) is made of tubular engineering plastics, the air transmission cavity (14) is fixed on the surface of the sliding block (6) through screws, and the air transmission cavity (14) is communicated with an external compressed air transmission pipe through a surface-mounted electromagnetic valve a.
7. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: the inner sweeping area (10) is made of circular aluminum alloy, a double-layer concentric ring structure for fixing the outer wall of the seamless steel pipe is convexly arranged on the surface of the inner sweeping area (10), and the linear distance between the outer ring structure and the inner ring structure is greater than the wall thickness of the seamless steel pipe; the surface of the internal sweeping area (10) is adhered with nitrile rubber, the internal sweeping area (10) is fixed on the upper surface of the top end of the connecting pipe (103) through screwing, and the top end of the internal sweeping area (10) and the top end of the spraying and sweeping ring (7) are horizontally leveled; the connecting pipe (103) is made of tubular engineering plastics, the connecting pipe (103) is fixed at the front end of the second screw rod (17) in a screwing mode, and the connecting pipe (13) is connected with an external compressed air transmission pipe through a surface-mounted electromagnetic valve b.
8. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: the clamping ring (16) is made of aluminum alloy with a circular structure, the surface of the clamping ring (16) is provided with a double-layer concentric ring structure with the same structure as the internal sweeping area (10), the periphery of the connecting structure of the clamping ring (16) is provided with a ventilation ring, and the circle center positions of the spraying and sweeping ring (7) and the internal sweeping area (10) are horizontally leveled with each other through the clamping ring (16); the position sensors are respectively arranged at the lower positions of the middle parts of the upper end surface and the outer surface of the spraying and sweeping ring (7), the upper end surface of the internal sweeping area (10) and the upper end surface of the fixed pipe arc (12) at one side, two position sensors are horizontally arranged on the upper end surface of the spraying and sweeping ring (7), and the position sensors are respectively used for sensing whether the positions of the spraying and sweeping ring (7) and the clamping ring (16) are level or not; whether the position of the spraying and sweeping ring (7) is equal to the position of the internal sweeping area (10) or not; whether the bottom end position of the spraying and sweeping ring (7) is equal to the position of the fixed pipe arc (12) or not, and when the position of the spraying and sweeping ring (7) is equal to the position of the fixed pipe arc (12), the seamless steel pipe can be sleeved into the spraying and sweeping ring (7).
9. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: the fixed pipe arc (12) is made of arc-shaped aluminum alloy, nitrile rubber is adhered to the outer surface of the fixed pipe arc (12), the fixed pipe arc (12) moves synchronously by moving the telescopic rod (11), and the telescopic rod (11) stops extending when the induction position of the fixed pipe arc (12) is level with the position of the spraying and sweeping ring (7).
10. The processing equipment of the high-strength corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: the screw rod guide rail (3) is an SGX type electric screw rod guide rail; the electric screw rod (8) is an electric lifting screw rod of metolac; the second screw rod (17) is of the same type as the electric screw rod (8), and the second screw rod (17) and the electric screw rod (8) are synchronously driven through a driving module;
the frame body (2) is made of plate-shaped structural alloy steel, a sliding chute (1) is fixed at the bottom end of the frame body (2) through a screw, the frame body (2) is symmetrically distributed at two ends of the sliding chute (1), and the linear distance between the frame bodies (2) at the two ends is not less than 1.5 m; BML-DJ806 electric telescopic rod is selected for use in telescopic link (11), and telescopic link (11) carry out synchronous drive through a drive module, and the screw hole that is used for connecting solid tub arc (12) is seted up to the upper end of this telescopic link (11).
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| CN114559217A (en) * | 2022-03-03 | 2022-05-31 | 浙江永上特材有限公司 | Production process and production equipment of stainless steel seamless steel pipe for ship |
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Denomination of invention: A production process and processing equipment for high-strength corrosion-resistant stainless steel seamless steel pipes Effective date of registration: 20230707 Granted publication date: 20220405 Pledgee: Bank of China Limited Songyang County sub branch Pledgor: Jute Steel Co.,Ltd. Registration number: Y2023330001404 |