CN112045375B - Manufacturing process of environment-friendly valve body and product thereof - Google Patents
Manufacturing process of environment-friendly valve body and product thereof Download PDFInfo
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- CN112045375B CN112045375B CN202010988405.6A CN202010988405A CN112045375B CN 112045375 B CN112045375 B CN 112045375B CN 202010988405 A CN202010988405 A CN 202010988405A CN 112045375 B CN112045375 B CN 112045375B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
Abstract
The invention relates to a manufacturing process of an environment-friendly valve body, which comprises the steps of respectively preparing a valve seat, a valve core seat and a connector, and manufacturing the valve body by adopting the processes of cold stamping, deep drawing, finish machining, saw cutting and the like, thereby realizing the valve body manufacturing process with low cost, high efficiency and environmental protection.
Description
Technical Field
The invention relates to the field of valves, in particular to a manufacturing process of an environment-friendly valve body and the valve body manufactured by the process.
Background
The valve is a pipeline accessory for opening and closing the pipeline, controlling the flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, and the valve isFluid transportA control part in the system, having a cut-off,RegulatingFlow guiding, reverse flow preventing, pressure stabilizing, flow dividing or overflow pressure relief and other functions, and is used as valve for fluid control systemSimpleFrom stop valves to valves used in extremely complex autonomous systems, of considerable variety and size, which can be used forControlling airWater, steam, variousCorrosiveness ofA medium,Slurry compositionFlow of various types of fluids, oil, liquid metal and radioactive media.
The valve consists of a valve body, a valve core, a sealing ring and a valve core control assembly, wherein the most important valve body is mainly manufactured by casting, but the cast valve body has the following defects:
1. the production process of the cast valve body can generate solid waste and dangerous air pollutants which seriously pollute the environment, the air pollution source is dispersed during casting, the concentration is lower, the quantity is large, more than 40 types of casting waste gas are detected in 188 total air pollutants listed by the United states environmental protection agency, the environment and the human health are greatly harmed, the health of workers is seriously influenced, and the environment-friendly policy which is continuously pushed by China is not met.
2. The valve body is cast by hot processing, a large amount of heat energy is consumed, long-time cooling is needed after casting, in the casting process, oxide skin is easy to appear on the surface of the valve body, and the oxide skin on the surface is removed by adopting the modes of shot blasting, sand blasting, acid pickling and the like, but the method for removing the oxide skin has obvious defects, if the shot blasting and the sand blasting are high in energy consumption, energy is not saved, the cost is high, the acid pickling process easily causes serious pollution to the environment, if the environment-friendly project is adopted, the cost of a manufacturing enterprise is very high, the production cost and the time cost of the valve are greatly increased, and the production efficiency is too low.
3. The valve body manufactured by casting has lower low-temperature resistance, and is easy to indicate the frost crack of the valve body when used in special fluids, so that the valve is damaged, and great potential safety hazard is brought.
4. The valve body made by casting has low strength, and is easy to air-dry naturally after being used for a period of time, so that the service life is too low.
Disclosure of Invention
The technical problem to be solved by the present invention is to solve the above-mentioned deficiencies of the prior art,
the valve body manufactured by the process has high strength, solves the problems of easiness in frost cracking at low temperature and low service life of a cast valve body, and greatly increases enterprise competitiveness compared with the original process with low cost and high efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: the manufacturing process of the environment-friendly valve body comprises the following steps:
s1, preparing a valve seat, cutting a whole steel pipe into a plurality of small sections according to the size of a valve body, punching the surface of the small sections of the cut steel pipe to prepare a semi-finished valve seat, machining threads at least one end of the semi-finished valve seat through a finish machining process, and turning a blocking seat for placing a sealing ring inwards at two ends of the semi-finished valve seat to prepare the valve seat;
preparing a valve core seat, cutting the whole steel pipe into a plurality of small sections according to the size of the valve core, and preparing the valve core seat from the cut small sections of the steel pipe through a cold stamping and deep drawing process;
preparing a connector, cutting the whole steel pipe into a plurality of small sections according to the size of the valve body, and manufacturing the cut small sections of the steel pipe into a valve seat connector through a cold stamping deep drawing or forging process; cutting the whole formed pipe into a plurality of small sections according to the size of the valve body; manufacturing the small section of the formed pipe into a pipe joint through a sawing process; manufacturing a valve seat joint and a pipeline joint into a semi-finished product joint through a welding process, and machining threads at two ends of the semi-finished product joint through finish machining to manufacture a joint;
s2, welding the punched end of the valve seat produced in the step S1 with the valve core seat to manufacture a semi-finished valve body;
s3: and (4) screwing the semi-finished valve body in the step (S2) with the connector through threads to assemble the valve body.
By adopting the technical scheme, the original process for manufacturing the valve body is changed from casting to cold stamping and drawing, in particular, the valve body is split into four small parts (namely a part when a connector is assembled at one end of the valve seat, or six small parts when connectors are assembled at two ends of the valve body) of the valve seat, the valve seat can be communicated with the valve seat by punching holes on the steel pipe material so as to place the valve core, threads are manufactured at least one end of the valve seat for connecting the connector, the two ends of the valve seat are turned inwards to form the baffle seats, so that a sealing ring can be placed in subsequent assembly, the flowing medium is prevented from leaking from the thread surface of the valve seat, the valve core seat is connected with the valve seat after the valve core seat with one large end and one small end is manufactured through the cold stamping and drawing process or the forging process, and the sealing ring must be placed on the connector in order to ensure the sealing performance, the valve body formed by cold stamping has the advantages that crystal grains are obviously refined after die pressing deformation, large deformation is accumulated in the deformation process, the area of equiaxial crystals appearing in microstructures is obviously increased, the quality of the valve body with the same volume is increased, the integral strength of the valve body is improved, the problems that the cast valve body is easy to frost crack at low temperature and is easy to air dry at normal temperature are solved, and the service life of the valve seat is prolonged.
The manufacturing process of the environment-friendly valve body can be further set as follows: the cold stamping and drawing process adopted when the connector is prepared in the step S1 is to place the cut small sections of steel pipes in a cold stamping and drawing die, punch out blanks for drawing the valve seat connector and an extension end required by drawing through stamping equipment, and draw the blanks into a sealing ring baffle plate meeting the target size through the stamping equipment, so that the valve seat connector capable of placing the sealing ring is manufactured.
By adopting the technical scheme, the cold stamping and deep drawing process in the S1 aims to form a sealing ring baffle plate capable of placing a sealing ring on the connecting head so as to ensure the sealing performance of the valve body, and particularly relates to a stamping processing method for changing a steel pipe obtained by a die into an open hollow part, which has the advantages of high processing production efficiency and high material utilization rate.
The manufacturing process of the environment-friendly valve body can be further set as follows: finish machining processes adopted during the preparation of the valve seat and the preparation of the connector in the step S1 both refer to: and (3) blanking and forming the steel plate on the surface or the inner wall by a lathe to form a spiral thread with a continuous bulge with a specific section, so that the valve seat and the semi-finished product connector form a matched thread surface for S3 assembly.
By adopting the technical scheme, most of the finish machining in the step S1 refers to thread machining on the valve seat or the connecting head, and processes such as cutting, turning, milling, grinding and the like can be adopted to machine a workpiece so as to form threads, wherein the threads can be internal threads or external threads, so that parts needing to be connected can be connected through the threads.
The manufacturing process of the environment-friendly valve body can be further set as follows: the welding process in the step S1 is a laser welding process, the steel pipe is a stainless steel pipe, and the formed pipe is a hexagonal pipe.
By adopting the technical scheme, along with the development of welding technology, the Chinese laser welding technology gradually enters the world advanced level, the seamless high sealing performance of the welding seam of the valve body is realized, specifically, the laser radiation heats the surface to be processed, the surface heat is diffused to the inside through heat conduction, the workpiece is melted by controlling the laser parameters such as the width, the energy, the peak power and the repetition frequency of laser pulse, a specific molten pool is formed, the workpieces to be welded are connected, and the stainless steel pipe has the advantages of high welding speed, small deformation, convenience in processing and the like, and the stainless steel pipe avoids the valve body from rusting and is convenient for subsequent pipeline connection by selecting and using the hexagonal pipe.
The manufacturing process of the environment-friendly valve body can be further set as follows: and when the valve core seat is prepared in the step S1, cutting one end of the valve core seat into a limiting groove for limiting the rotation angle of the valve core.
By adopting the technical scheme, the limiting groove is formed in one end of the valve core seat, so that the rotation angle of the valve core is limited, and the limiting groove is a groove hole with one end parallel to the valve seat and the other end perpendicular to the valve seat.
The manufacturing process of the environment-friendly valve body can be further set as follows: the steel pipe comprises the following dimensions: DN8-DN100.
By adopting the technical scheme, the nominal diameter of the steel pipe is limited to 8-100.
A valve body manufactured by the process comprises a valve seat and a valve core seat which is arranged on the valve seat and communicated with the valve seat, wherein at least one end of the valve seat is provided with a connector which can be detachably connected with the valve seat, two ends of the valve seat are respectively provided with a blocking seat for placing a sealing ring, and a sealing ring baffle plate capable of placing the sealing ring is arranged in the connector.
By adopting the technical scheme, the valve body comprises the valve seat and the valve core seat communicated with the valve seat, the stop seats are turned inwards at two ends of the valve seat, so that the sealing ring can be placed in subsequent assembly to prevent flowing mesons from leaking from the threaded surface of the valve seat, the connectors capable of being connected with the valve seat are arranged at two ends or one end of the valve seat, the sealing ring baffle capable of placing the sealing ring is arranged in the connectors, the sealing performance of the valve body can be ensured by arranging the sealing ring baffle, the valve core control rod can penetrate through the valve core seat to be connected with the valve core to control the valve switch, and the connectors are arranged at least one end of the valve to enable the valve core to be installed in the valve seat through the detachable connectors.
The valve body is further provided with: the connector connects and constitutes with the pipe connection's of pipe connection by the disk seat of being connected with the disk seat, the disk seat connects the one end that corresponds the disk seat and is equipped with first screw thread, thereby the disk seat is equipped with and connects the second screw thread that makes disk seat and disk seat articulate soon mutually with first screw thread, the one end of keeping away from first screw thread is connected at the disk seat to the sealing washer baffle setting, be equipped with the third screw thread that supplies pipe connection on the pipe connection, the pipe connection connects to pass through welding process with the disk seat and is connected, and switches on each other.
By adopting the technical scheme, the connector is made by the valve seat connector and the pipeline connector, the valve seat connector is in threaded connection with the second thread of the valve seat through the first thread, the valve seat can be connected with the connector, the sealing ring baffle is made by the cold stamping and deep drawing process, the sealing property of the connection between the valve seat and the connector is ensured, the third thread arranged on the pipeline connector can be stably connected with the pipeline, the connector with high sealing property and stable connection can be obtained by welding the valve seat connector and the pipeline connector, 1 or 2 connectors can be respectively in threaded connection with two ends of the valve seat in 2 times, the sealing ring baffle is directly arranged in one end of the valve seat by the cold stamping and deep drawing process at one end of the valve seat in a single time, the third thread connected with the pipeline and the hexagonal connection part are formed by finish machining at the other end of the valve seat, and the structures are all in the protection range of the invention.
The valve body is further provided with: the one end that the connector corresponds the disk seat is equipped with first screw thread, and the other end is equipped with the third screw thread that supplies the pipe connection, thereby the disk seat is equipped with and connects the second screw thread that makes disk seat and connector be connected with first screw thread looks soon, the one end that the connector corresponds the disk seat is equipped with the baffle step, the sealing washer baffle passes through welding process and fixes in baffle step department.
By adopting the technical scheme, the connector is provided with a first thread at one end of the valve seat (valve seat connector), a third thread at the other end of the valve seat (pipeline connector), the connector is in threaded connection with a second thread of the valve seat through the first thread, the connector is provided with the baffle step, so that the gasket is welded at the baffle step to form the sealing ring baffle for placing the sealing ring, and further the sealing performance of the valve body is ensured, the number of the connectors can be 1 or 2, 2 connectors are respectively in threaded connection with two ends of the valve seat respectively, one connector of the valve seat directly forms the baffle step through a cold stamping and drawing process, the sealing ring baffle is formed through a welding process, the other end forms a third thread and a hexagonal connection part connected with the pipeline through finish machining, and the structures are all within the protection range of the invention.
The valve body is further provided with: the connecting joint connects, connects and constitutes the connecting piece that connects with the pipe connection by the disk seat of being connected with the disk seat, the disk seat connects the one end that corresponds the disk seat and is equipped with first screw thread, thereby the disk seat is equipped with and connects the second screw thread that makes disk seat and disk seat articulate soon mutually with first screw thread, the one end of first screw thread is kept away from at the disk seat joint to the setting of sealing washer baffle, the last flange that supplies pipe connection that is equipped with of pipe connection connects, the one end that the connecting piece corresponds the disk seat and connects is equipped with polygon connecting portion, connect, be connected through welding process between disk seat joint, pipe connection and the connecting piece, and switch on each other.
By adopting the technical scheme, the connector is made of the valve seat connector, the pipeline connector and the connecting piece, the valve seat connector is in threaded connection with the second thread of the valve seat through the first thread, the valve seat can be connected with the connector, the sealing ring baffle is made through a cold stamping and deep drawing process, the sealing performance of the connection between the valve seat and the connector is ensured, the connecting flange arranged on the pipeline connector can be stably connected with a pipeline through a pipeline clamp, the connecting piece is provided with a polygonal connecting part, the welding area of the connecting piece and the valve seat connector is increased, the subsequent assembly of the valve seat connector is driven by a wrench conveniently, wherein the polygonal connecting part can be a square shape, a hexagonal shape, an octagonal shape and the like, preferably a hexagonal shape, the connecting flange with high sealing performance and stable connection can be obtained by welding the valve seat connector, the connecting piece can be 1 or 2, the connecting piece can be respectively in threaded connection with two ends of the valve seat in 2 times, one end of the valve seat directly forms the sealing ring baffle through the cold stamping process in a deep drawing process, the connecting flange is formed through finish machining, the other end forms the connecting flange connected with the pipeline through finish machining, and the structure is within the protection range of the invention.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a perspective view schematically illustrating embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a first connection structure in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a second connection structure in embodiment 1 of the present invention.
Fig. 4 is a schematic perspective view of embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of a first connection structure in embodiment 2 of the present invention.
Fig. 6 is a schematic structural view of a second connection structure in embodiment 2 of the present invention.
Fig. 7 is a sectional view of embodiment 2 of the present invention.
Fig. 8 is a schematic perspective view of embodiment 3 of the present invention.
Fig. 9 is a schematic structural view of a first connection structure according to embodiment 3 of the present invention.
Fig. 10 is a schematic structural view of a second connection structure in embodiment 3 of the present invention.
Fig. 11 is a schematic structural view of a third connection structure in embodiment 3 of the present invention.
Detailed Description
The manufacturing process of the environment-friendly valve body comprises the following steps:
s1, preparing a valve seat, selecting a stainless steel pipe with the specification of DN8-DN100, cutting the stainless steel pipe into a plurality of small sections, punching the surface of the small sections of the stainless steel pipe to prepare a semi-finished valve seat, manufacturing the semi-finished valve seat into a spiral thread with a continuous bulge with a specific section on the surface or the inner wall of the semi-finished valve seat through a lathe, forming a thread surface at least at one end of the valve seat, and turning a retaining seat for placing a sealing ring inwards at two ends of the semi-finished valve seat to prepare the valve seat;
preparing a valve core seat, cutting the whole stainless steel pipe into a plurality of small sections according to the size of the valve core, manufacturing the valve core seat by the cut small sections of the stainless steel pipe through a cold stamping deep drawing or forging process, and cutting one end of the valve core seat into a limiting groove for limiting the rotation angle of the valve core;
preparing a connector, selecting a stainless steel pipe with the specification of DN8-DN100, cutting the stainless steel pipe into a plurality of small sections, placing the cut small sections of the stainless steel pipe in a cold stamping drawing die, stamping a blank for drawing the valve seat connector and an extension end required by drawing the stainless steel pipe through stamping equipment, and drawing the blank into a sealing ring baffle plate which meets the target size through stamping equipment, thereby preparing the valve seat connector capable of placing a sealing ring; cutting the whole hexagonal pipe into a plurality of small sections according to the size of the valve body; manufacturing the small sections of hexagonal tubes into pipeline joints by a sawing process; the valve seat joint and the pipeline joint are manufactured into a semi-finished product joint through a laser welding process, the surface or the inner wall of the semi-finished product joint is manufactured into a spiral thread with continuous bulges with a specific section through a lathe, and two ends of the semi-finished product joint form thread surfaces to manufacture the joint;
s2, welding the punching end of the valve seat produced in the S1 with the valve core seat by laser to manufacture a semi-finished valve body;
s3: and (4) screwing the semi-finished valve body in the step (S2) with the connector through threads to assemble the valve body.
Example 1:
as shown in fig. 1 and 3, a valve body includes a valve seat 1 and a valve core seat 11 disposed on the valve seat 1 and communicated with the valve seat 1, two ends of the valve seat 1 are respectively provided with a connector 2 detachably connected with the valve seat 1, two ends of the valve seat 1 are respectively provided with a stopper seat 6 for placing a sealing ring, a sealing ring baffle 21 capable of placing a sealing ring is disposed in the connector 2, the connector 2 is composed of a valve seat joint 3 connected with the valve seat 1 and a pipeline joint 4 connected with a pipeline, one end of the valve seat joint 3 corresponding to the valve seat 1 is provided with a first thread 31, the valve seat 1 is provided with a second thread 12 capable of being screwed with the first thread 31 to connect the valve seat 1 and the valve seat joint 3, the sealing ring baffle 21 is disposed at one end of the valve seat joint 3 far away from the first thread 31, the pipeline joint 4 is provided with a third thread 41 for connecting the pipeline, and the pipeline joint 4 and the valve seat joint 3 are connected by a laser welding process and communicated with each other.
As shown in fig. 2, this valve body is only equipped with 1 movable connector, the connector of the other end passes through the cold stamping deep-drawing technology and directly forms on disk seat 1, disk seat and connector integrated into one piece this moment, weld the connector department at this end with the pipe joint again, disk seat 1 both ends all are equipped with the fender seat 6 that supplies the sealing washer to place, wherein the pipe joint department of disk seat 1 one end directly obtains sealing washer baffle 21 through the cold stamping deep-drawing technology shaping, disk seat 1 both ends all are equipped with the pipe joint (hexagonal) that supplies the fender seat 6 that the sealing washer was placed and form third screw thread 41 and supply the pipe connection through the finish machining, the other end passes through disk seat joint 3 and welds with pipe joint 4, thereby make sealing washer banding baffle 21 and can dismantle the connector 2 of being connected with disk seat 1.
Example 2
As shown in fig. 4, fig. 6 and fig. 7, a valve body includes a valve seat 1 and a valve core seat 11 disposed on the valve seat 1 and communicated with the valve seat 1, two ends of the valve seat 1 are respectively provided with a connector 2 detachably connected with the valve seat 1, two ends of the valve seat 1 are respectively provided with a stopper seat 6 for placing a sealing ring, a sealing ring baffle 21 capable of placing a sealing ring is disposed in the connector 2, one end of the connector 2 corresponding to the valve seat 1 is provided with a first thread 31, the other end of the connector 2 is provided with a third thread 41 for connecting a pipeline, the valve seat 1 is provided with a second thread 12 capable of being screwed with the first thread 31 to connect the valve seat 1 and the connector 2, one end of the connector 2 corresponding to the valve seat 1 is provided with a baffle step 22, and the sealing ring baffle 21 is fixed at the baffle step 22 by a laser welding process.
As shown in fig. 5, this valve body is only equipped with 1 movable connector 2, the connector of the other end passes through cold stamping deep-drawing technology and directly forms on disk seat 1, disk seat and connector integrated into one piece this moment, weld the connector department at this end with the pipe joint again, disk seat 1 both ends all are equipped with the fender seat 6 that supplies the sealing washer to place, disk seat 1 one end directly forms baffle step 22 through cold stamping deep-drawing technology, rethread welding technology forms sealing washer baffle 21 with the packing ring welding on baffle step 22, the outside forms third screw thread 41 and supplies pipe connection's pipe joint (hexagonal) through the finish machining, other end connector 2 welds with sealing washer baffle 21, thereby make sealing washer baffle 21 and can dismantle the connector 2 of being connected with disk seat 1.
Example 3
As shown in fig. 8 and 10, a valve body includes a valve seat 1 and a valve core seat 11 disposed on the valve seat 1 and communicated with the valve seat 1, two ends of the valve seat 1 are respectively provided with a connector detachably connected with the valve seat 1, two ends of the valve seat 1 are both provided with a stopper seat 6 for placing a sealing ring, a sealing ring baffle 21 capable of placing a sealing ring is disposed in the connector, the connector includes a valve seat connector 3 connected with the valve seat 1, a pipe connector 4 connected with a pipe, and a connector 5 connecting the valve seat connector 3 with the pipe connector 4, one end of the valve seat connector 3 corresponding to the valve seat 1 is provided with a first thread 31, the valve seat 1 is provided with a second thread 12 rotatably connected with the first thread 31 so as to connect the valve seat 1 with the valve seat connector 3, the sealing ring baffle 21 is disposed at one end of the valve seat connector 3 far away from the first thread 31, the pipe connector 4 is provided with a connecting flange 42 for connecting a pipe, one end of the connector 5 corresponding to the valve seat connector 3 is provided with a hexagonal connection portion 51, and the valve seat connector 3, the pipe connector 4 and the pipe connector 5 are connected with the valve seat by laser welding process, and are communicated with each other.
As shown in fig. 9, the valve body is only provided with 1 movable connector, the connector at the other end is directly formed on the valve seat 1 through a cold stamping and deep drawing process, at this moment, the valve seat and the connector are integrally formed, then the pipe joint is welded at the connector at the end, the two ends of the valve seat 1 are both provided with the baffle seats 6 for placing the sealing ring, wherein the pipe joint at one end of the valve seat 1 is directly formed through the cold stamping and deep drawing process to obtain the sealing ring baffle 21, and the connecting flange 42 is formed through finish machining, the other end is welded with the pipe joint 4 and the connecting piece through the valve seat joint 3, thereby manufacturing the connector 2 which is provided with the sealing ring baffle 21 and can be detachably connected with the valve seat 1.
As shown in fig. 11, a valve body includes a valve seat 1 and a valve seat 11 disposed on the valve seat 1 and communicated with the valve seat 1, two ends or one end of the valve seat 1 are provided with connectors detachably connected with the valve seat 1, two ends of the valve seat 1 are provided with a stopper seat 6 for placing a sealing ring, the connector is provided with a sealing ring baffle 21 for placing the sealing ring, the connector includes a valve seat joint 3 connected with the valve seat 1, a pipe joint 4 connected with a pipe, and a connector 5 connecting the valve seat joint 3 and the pipe joint 4, one end of the valve seat joint 3 corresponding to the valve seat 1 is provided with a first thread 31, the valve seat 1 is provided with a second thread 12 rotatably connected with the first thread 31 so as to connect the valve seat 1 with the valve seat joint 3, the sealing ring baffle 21 is disposed at one end of the valve seat joint 3 far away from the first thread 31, one end of the pipe joint 4 corresponding to the connector 5 is provided with a welding portion 43, the other end is provided with a connecting flange 42 for connecting the pipe, a hexagonal connecting portion 51 is disposed outside the connector 5, and the valve seat joint 3, the pipe joint 4 and the connector 5 are connected with the connector by laser welding process.
Claims (10)
1. The manufacturing process of the environment-friendly valve body comprises the following steps:
s1, preparing a valve seat, cutting a whole steel pipe into a plurality of small sections according to the size of a valve body, punching the surface of the small sections of the cut steel pipe to prepare a semi-finished valve seat, machining threads at least one end of the semi-finished valve seat through a finish machining process, and turning a blocking seat for placing a sealing ring inwards at two ends of the semi-finished valve seat to prepare the valve seat;
preparing a valve core seat, cutting the whole steel pipe into a plurality of small sections according to the size of the valve core, and preparing the cut small sections of the steel pipe into the valve core seat through a cold stamping deep drawing or forging process;
preparing a connector, cutting the whole steel pipe into a plurality of small sections according to the size of the valve body, and making the cut small sections of the steel pipe into a valve seat connector through a cold stamping and deep drawing process; cutting the whole formed pipe into a plurality of small sections according to the size of the valve body; manufacturing the small section of the formed pipe into a pipeline joint through a sawing process; manufacturing a valve seat joint and a pipeline joint into a semi-finished product joint through a welding process, and processing threads at two ends of the semi-finished product joint through finish machining to manufacture a joint;
s2, welding the punched end of the valve seat produced in the step S1 with the valve core seat to manufacture a semi-finished valve body;
s3: and (4) screwing the semi-finished valve body in the step (S2) with the connector through threads to assemble the valve body.
2. The manufacturing process of the environment-friendly valve body as claimed in claim 1, wherein: the cold stamping and drawing process adopted when the connector is prepared in the step S1 is to place the cut small sections of steel pipes in a cold stamping and drawing die, punch out blanks for drawing the valve seat connector and an extension end required by drawing through stamping equipment, and draw the blanks into a sealing ring baffle plate meeting the target size through the stamping equipment, so that the valve seat connector capable of placing the sealing ring is manufactured.
3. The manufacturing process of the environment-friendly valve body as claimed in claim 1, wherein: finish machining processes adopted during the preparation of the valve seat and the preparation of the connector in the step S1 both refer to: and (3) making spiral threads with continuous bulges with specific sections on the surface or the inner wall of the steel pipe by using a lathe, so that the valve seat and the semi-finished product connector form matched thread surfaces for S3 assembly.
4. The manufacturing process of the environment-friendly valve body as claimed in claim 1, wherein: the welding process in the step S1 is a laser welding process, the steel pipe is a stainless steel pipe, and the formed pipe is a hexagonal pipe.
5. The manufacturing process of the environment-friendly valve body as claimed in claim 1, wherein: and when the valve core seat is prepared in the step S1, cutting one end of the valve core seat into a limiting groove for limiting the rotation angle of the valve core.
6. The manufacturing process of the environment-friendly valve body as claimed in claim 1, wherein: the steel pipe comprises the following dimensions: DN8-DN100.
7. A valve body made according to the process of any one of claims 1-5, wherein: including the disk seat with set up on the disk seat and with the valve core case that the disk seat switches on mutually, at least one end of disk seat is equipped with the connector that can dismantle the connection with the disk seat, the disk seat both ends all are equipped with the fender seat that supplies the sealing washer to place, be equipped with the sealing washer baffle that can place the sealing washer in the connector.
8. The valve body of claim 7, wherein: the connector connects and constitutes with the pipe connection's of pipe connection by the disk seat of being connected with the disk seat, the disk seat connects the one end that corresponds the disk seat and is equipped with first screw thread, thereby the disk seat is equipped with and connects the second screw thread that makes disk seat and disk seat articulate mutually soon with first screw thread, the sealing washer baffle sets up the one end of keeping away from first screw thread at the disk seat joint, be equipped with the third screw thread that supplies pipe connection on the pipe connection, the pipe connection connects through welding process with the disk seat and is connected, and switches on each other.
9. The valve body of claim 7, wherein: the one end that the connector corresponds the disk seat is equipped with first screw thread, and the other end is equipped with the third screw thread that supplies the pipe connection, thereby the disk seat is equipped with and connects the second screw thread that makes disk seat and connector be connected with first screw thread looks soon, the one end that the connector corresponds the disk seat is equipped with the baffle step, the sealing washer baffle passes through welding process and fixes in baffle step department.
10. The valve body of claim 7, wherein: the connecting head connects, connects and forms with the connecting piece that the pipe connection is connected with the pipe connection by the disk seat of being connected with the disk seat, the disk seat connects the one end that corresponds the disk seat and is equipped with first screw thread, thereby the disk seat is equipped with and can connects the second screw thread that makes disk seat and disk seat articulate mutually with first screw thread soon, the sealing washer baffle sets up the one end of keeping away from first screw thread at the disk seat joint, be equipped with the flange who supplies pipe connection on the pipe connection, the one end that the connecting piece corresponds the disk seat and connects is equipped with polygon connecting portion, connect through welding process between disk seat joint, pipe connection and the connecting piece, and switch on each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010988405.6A CN112045375B (en) | 2020-09-18 | 2020-09-18 | Manufacturing process of environment-friendly valve body and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010988405.6A CN112045375B (en) | 2020-09-18 | 2020-09-18 | Manufacturing process of environment-friendly valve body and product thereof |
Publications (2)
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| CN112605619A (en) * | 2020-12-28 | 2021-04-06 | 江苏力博士机械股份有限公司 | Machining method for built-in reversing valve of middle cylinder of hydraulic breaking hammer |
| KR20240089603A (en) * | 2021-11-23 | 2024-06-20 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Stop valves, processing methods and assembly methods |
| CN114453842A (en) * | 2022-02-22 | 2022-05-10 | 泉州旺腾厨卫有限公司 | Processing technology of nut for pipe joint |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340700A (en) * | 1970-01-27 | 1973-12-12 | Ford Motor Co | Method of manufacturing valves |
| JPH08177421A (en) * | 1994-12-26 | 1996-07-09 | Matsuo Kogyosho:Kk | Valve seat and its manufacture |
| CN1831408A (en) * | 2006-04-04 | 2006-09-13 | 李仁波 | Manufacturing method of tap valve body |
| CN102886657A (en) * | 2012-11-01 | 2013-01-23 | 浙江苏泊尔卫浴有限公司 | Shower faucet valve body manufacturing method |
| CN103831595A (en) * | 2014-03-20 | 2014-06-04 | 台州广博五金制品有限公司 | Angle valve shell manufacturing method |
| KR20140147969A (en) * | 2013-06-20 | 2014-12-31 | 한국기계연구원 | Manufacturing method for large size ball valve |
| CN105033590A (en) * | 2015-09-02 | 2015-11-11 | 长江三峡能事达电气股份有限公司 | Machining process of valve body of large-flow cartridge valve |
| CN204828851U (en) * | 2015-06-11 | 2015-12-02 | 陈春景 | New butterfly valve |
| CN105619024A (en) * | 2015-03-12 | 2016-06-01 | 重庆华驰文具有限公司 | Manufacturing method for stainless steel valve element |
| CN205401745U (en) * | 2016-03-03 | 2016-07-27 | 温州天悦流体设备科技有限公司 | Fast -assembling butterfly valve |
| CN108161363A (en) * | 2017-12-29 | 2018-06-15 | 浙江省平湖市北辰实业有限公司 | A kind of production technology of four-way valve |
| CN109396259A (en) * | 2018-11-22 | 2019-03-01 | 安徽中斯特流体设备有限公司 | A kind of butterfly valve automated production process equipment |
| CN109773421A (en) * | 2019-01-10 | 2019-05-21 | 福建集力卫浴有限公司 | The manufacturing method of angle valve valve body |
| CN111531117A (en) * | 2020-04-30 | 2020-08-14 | 温州博宇机械有限公司 | Machining process of ball valve housing and ball valve housing |
-
2020
- 2020-09-18 CN CN202010988405.6A patent/CN112045375B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1340700A (en) * | 1970-01-27 | 1973-12-12 | Ford Motor Co | Method of manufacturing valves |
| JPH08177421A (en) * | 1994-12-26 | 1996-07-09 | Matsuo Kogyosho:Kk | Valve seat and its manufacture |
| CN1831408A (en) * | 2006-04-04 | 2006-09-13 | 李仁波 | Manufacturing method of tap valve body |
| CN102886657A (en) * | 2012-11-01 | 2013-01-23 | 浙江苏泊尔卫浴有限公司 | Shower faucet valve body manufacturing method |
| KR20140147969A (en) * | 2013-06-20 | 2014-12-31 | 한국기계연구원 | Manufacturing method for large size ball valve |
| CN103831595A (en) * | 2014-03-20 | 2014-06-04 | 台州广博五金制品有限公司 | Angle valve shell manufacturing method |
| CN105619024A (en) * | 2015-03-12 | 2016-06-01 | 重庆华驰文具有限公司 | Manufacturing method for stainless steel valve element |
| CN204828851U (en) * | 2015-06-11 | 2015-12-02 | 陈春景 | New butterfly valve |
| CN105033590A (en) * | 2015-09-02 | 2015-11-11 | 长江三峡能事达电气股份有限公司 | Machining process of valve body of large-flow cartridge valve |
| CN205401745U (en) * | 2016-03-03 | 2016-07-27 | 温州天悦流体设备科技有限公司 | Fast -assembling butterfly valve |
| CN108161363A (en) * | 2017-12-29 | 2018-06-15 | 浙江省平湖市北辰实业有限公司 | A kind of production technology of four-way valve |
| CN109396259A (en) * | 2018-11-22 | 2019-03-01 | 安徽中斯特流体设备有限公司 | A kind of butterfly valve automated production process equipment |
| CN109773421A (en) * | 2019-01-10 | 2019-05-21 | 福建集力卫浴有限公司 | The manufacturing method of angle valve valve body |
| CN111531117A (en) * | 2020-04-30 | 2020-08-14 | 温州博宇机械有限公司 | Machining process of ball valve housing and ball valve housing |
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