1=TimesNewRoman1 Abstract Introduces foreign countries in recent years to develop and obtain Yili's static connection å¿ seal ç šé’† keyword static joints; sealing device; structure in the classification number out of 36 0刖 to establish a reliable sealing device to ensure detachable static The connector maintains the desired seal at core pressure and temperature. It is an important task in designing machine tool automatic lines and robot complexes. The most commonly used are sealed jaw and sealed contact seals made of metal non-metal and composite materials. In recent years. There are many new sealing structures for removable static connectors with better characteristics.
1 static sealing device of various new structures 1.1 The connecting piece with the one-shaped cross-section metal sealing ring is so beautiful; the sealing of the pen is installed in the pipe connecting piece used at high temperature 1. The tube ends 1 and 5 form a sleeve connection, and a metal seal ring 7 is provided in the annular groove 6 on the tube 5, and annular ribs 23 and 8 are formed thereon to simplify the assembly of the joint. The taper is made on the crucible. 4. The ring is deformed when assembled to achieve a given axial position. The ribs 2 and 3 are snapped into the grooves formed on the inner surface of the tube 1. , 1.2 with a special cross-section of the rubber seal ring, that is, Meiyang's special cross-section seal, connecting pieces. The sealing ring 3 is made of special rubber, which has a bearing surface 6 and a sealing lip 2. When installing, the sealing ring is mounted on the radial pre-tightening force of the two flanges received date 2002, so that the sealing lip is elastic Deformation. The axial dimension of the seal is less than 1 depth, so that the sealability of the shaft 4 deformed flange joint can be excluded from the temperature of the medium.
14. Flange 2. Sealing lip 3. Sealing ring 57. Groove 6. Supporting surface 1.3 Hollow rubber sealing ring, 1 Germany's special cross-section hollow rubber ring 3 for various types of removable static joints Reliable sealing of axial and radial clearances. At this time, it is difficult to install the standard seal due to the small size of the component or other structural features. The sealing ring 1 is covered with a reference portion 5 of 1 and a thinned portion with a slit groove 34. The sealing ring of this structure is foldable. That is, the thin portion can be folded into the cavity of the reference portion. The cross section of the flap is still in this state. At this time, the width of the sealing ring is about 12 smaller than the original position, which is advantageous for ampoules. After installation, the air 1 pressure is applied into the cavity of the sealing ring, and 8 can restore its original shape.
1.4 Flange connector with seal 4 This German seal is reliable. It is mounted between the flat end faces of the two flanges which are tensioned by bolts and is composed of a metal ring 1 and two spacers 58. The end faces of the metal ring are formed with annular ridges 24 and 6 having an angular cross section. The gasket is made of a graphite material. The ridges 26 of the two edges are higher than the ridges 4, if 4 is the condition of the sealing parts before the two flanges are not tightened. When the end faces of the flange are tensioned, the gasket material will be squeezed into the groove 3 between the ridges 4, while the higher ridge 26 bears in the end face of the flange and is cut into the face.
Thereby, the ridge 6 can insulate the gasket from the working medium passing through the seal ring hole 7 to exclude contamination by the graphite particles. The ridge 2 can protect the French connector from sealing at a working medium temperature greater than 5 and a stylish degree.
1. Metal ring 246. Annular ridge 1 groove 5 gasket 7. Seal ring hole 1.5 is made of hollow metal ring seal 0, 1836, company British seal 5, for static joints and relative motion at high temperature Connector. It consists of a number of hollow metal rings 6 and has an angular cross section, with the addition of a metal ring 2 having a cylindrical bottom which is in contact with the face 8 of the part 7.
The outer diameter of the seal is limited by the bushing 4, and the pre-tightening force between the rings 6 is produced by the axial compression of the parts 3 and 7, in which case the axial dimensions of the faces 5 and 8 limit the allowable deformation of the ring. The pressure working medium will enter the seal through the gap between the two parts, and at the same time make the gap between the rings 1. The metal ring 3.7. The part 4. The bushing 1.6 The flange joint is a flat seal. With the dense 3 Russian, the connector with the flat sealing ring can be divided into the open type 6 lock type closed type 61 and the inner closed type 6 in the open type connecting piece, the sealing failure is due to the residual pressure of the sealed medium. The seal is unstable. The load established by the report exceeds the friction on the end face of the connected piece. This connection can be used in lower pressure conditions. The magnitude of the pressure is related to the coefficient of friction on both ends of the rubber hardness and the shape of the connector. In the closed connector 6, the displacement and deformation of the seal under the pressure of the medium can be limited. This connection allows the door sealing effect to be compressed and transmitted to the sides. In order to exhibit a self-sealing effect, it is recommended to lubricate the bearing surface of the joint to reduce the coefficient of friction, and it is recommended to use soft rubber. The minimum thickness is selected only by the deformation strength parameter of the joint.
3 Open type closed type 1.7 The special type of rubber ring is used to seal the pipe connecting parts to seal the pipe connecting parts 1 and 27. The 16th company of Germany adopts the special shape of the ring rubber. The sealing ring is installed in the pipe joint end of the pipe 2, and the two pipes and the pressed lip + can be secured.
When used for a long period of time, the rubber crucible seal maintains the high sealing ability of the magazine body and maintains the elasticity of the metal over a wide temperature range.
1.8 Pipe joint 2 with rubber metal seal, which is vulcanized with a rubber cup 3. The thread of the coil is subjected to the thread tension of 1 and 1 and 4 connections. The cup is self-sealing under the pressure of the sealed medium and can be reliably connected when it is vibrated by the sealing surface. Seal the roughness of the agricultural surface.
1.9 Rubber metal special flat seal 9 This seal can be used to seal a large number of slot seals 2 of the end face lamp. The width of the seal ring is 62. The seal ring can work at a medium pressure of 40%.
1. Metal plate 2 is elastically sealed, 1. Flange joint with rubber metal end face seal This rubber metal end face seal Russia has high working ability under similar use conditions. It is a thin-walled elastomeric thin shell 2 in which a steel disc spring 3 and a washer 4 are mounted and a profiled protective steel ring is provided on the outside. 1. The washer 4 allows the spring to be easily gathered and restricts spring deformation. The disc magazine ensures the unit load required for contact. The protective steel ring prevents the elastomeric shell from being extruded when the power is released to a width of 0.1.
1. Spiral wrap around the seal. This spiral wrap is used to seal the end face of the flange to be connected. The seal mountain limits the gold, the circle. 3 and a ring-shaped spiral winding tape 2 is composed. The spiral wrap is made of a metal and filler rubber asbestos strip or asbestos tape of up to 2. The inactive rings of the metal strip are welded to each other. The advantage of this seal is its high elasticity and its ability to operate under high temperature and thermal shock conditions.
According to the spiral shape!
The wound-sealing element is now produced for use in an aggressive medium water vapor operating at temperatures up to a factor of 1. 1.3. Restricted metal, 2. Wound spiral with a force of up to 1.613, spiral wound sealing medium acid and alkali oxidant. It is suitable for working in the etched medium vapor ten gas and the like with a temperature up to 600 pressures up to 25 deg.
1.12 Pipe Threaded Connector 12 with Flat Seal This is a flat threaded pipe thread splicing piece Russian seal. In order to seal the threaded connection of the tube 15, the sealing ring 2 is pressed against the tube 1 by means of flat sealing rings 2 and 4, and the tube 5 presses the sealing ring 4 against the end face of the nut. The seal ring 2 is made of rubber. The sealing ring 4 is made of aluminum-copper rubber asbestos board and horse dung paper fiberboard.
15. Tube 2.4. Flat seal 3. Nut 2 Conclusion The patent document for the large-capacity removable joint seal structure is described.
Their possibilities for improvement are not yet over, and the ideal seal for widespread use has not yet been established. Its working direction is to improve the reliability and life of the sealing device; to catch high sealing under high pressure and high temperature; to adopt new corrosion-resistant materials, and to have better physical and chemical properties; to simplify the manufacturing process and reduce the production cost; Easy to use.
Blowing Agent,Defoaming Agent,Natural Foaming Agent,Anti Foaming Agent
Jiang Xi Hi-Tech Technology Co.,Ltd. , https://www.hi-techmasterbatch.com