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63 results about "Thread seal tape" patented technology

Thread seal tape (also known as PTFE tape, Teflon tape, or plumber's tape) is a polytetrafluoroethylene (PTFE) film tape commonly used in plumbing for sealing pipe threads. The tape is sold cut to specific widths and wound on a spool, making it easy to wind around pipe threads. Thread seal tape lubricates allowing for a deeper seating of the threads, and it helps prevent the threads from seizing when being unscrewed. The tape also works as a deformable filler and thread lubricant, helping to seal the joint without hardening or making it more difficult to tighten, and instead making it easier to tighten.

Full-automatic thread seal tape roll separator

The invention disclose a full-automatic thread seal tape roll separator which comprises a frame body, a power driving mechanism and a control system, wherein a rotatable scale division rotary table is mounted on the frame body; a central rotating shaft and three rotating shafts are arranged on the scale division rotary table; the central rotating shaft is used for driving the scale division rotary table to rotate, and the three rotating shafts are uniformly distributed along the circumference of the scale division rotary table and can rotate independently; a roll core supplying device, a feeding device, a bonding device, a cutting-off device, a tail pressing device and an unloading device of thread seal tapes are sequentially mounted on the frame body on the outer side of the scale division rotary table in the clockwise direction; the roll core supplying device is used for automatically supplying roll cores for the rotating shafts of the scale division rotary table; the feeding device is used for conveying the thread seal tapes to the roll cores on the scale division rotary table and winding; the bonding device is used for bonding the thread seal tapes on the roll cores; the cutting-off device is used for cutting off the thread seal tapes; the tail pressing device is used for pressing the cutting-off thread seal tapes. The full-automatic thread seal tape roll separator has the advantages that the full-automatic operation of thread seal tape roll separation is achieved, the rolled length of the thread seal tapes is controlled accurately, and the production efficiency is improved.
Owner:FUJIAN CHUN FLAG MACHINERY IND & TRADE

Safety valve type underwater fixed-depth releasing device

The invention aims to provide a safety valve type underwater fixed-depth releasing device, which comprises a filter, a safety valve and a releasing mechanism, wherein the filter is fixed at the water inlet of the safety valve; the water outlet of the safety valve is connected with the releasing mechanism; a tacking bolt is pressed against a bearing bar; the bearing bar is used for bearing pressure load on both sides; an adjusting screw cap can be moved up and down on the outer surface of a lower valve body through a screw thread, and the pressure of the safety valve can be adjusted by adjusting a pressure regulating spring; the adjusting screw cap is connected with the lower valve body through a screw thread, the adjusting screw cap and the lower valve body are sealed through a sealing ring, and a locking nut can be used for preventing the adjusting screw cap from rotating freely; an upper valve body is connected with a valve body interface through a taper thread and is wound with a thread seal tape for sealing; the valve body interface is sealed with an upper cover through a sealing ring, and an interface pressure plate is used for compressing the valve body interface onto the upper cover through a bolt; the sealing cover is used for performing end face static seal between the sealing ring and the upper cover, and limiting a steel ball from rolling outwards. The safety valve type underwater fixed-depth releasing device is high in loading bearing capacity, light in weight, small in size and easy to install.
Owner:HARBIN ENG UNIV

Preparation method of flexible sintered ferrite films

The invention discloses a preparation method of flexible sintered ferrite films, including: 1) preparing slurry, to be specific, adding ferrite powder and solvent into a ball-mill tank according to a preset ratio, performing ball milling; 2) filtering the slurry, to be specific, pouring prepared slurry from the ball-mill tank; 3) performing flow-casting, to be specific, casting a flat and even tape on a steel strip or a PET (polyethylene terephthalate) film by steel strip flow casting or PET film flow casting, and drying the tape in a drying oven; 4) performing lamination, to be specific, laminating the unsintered tape by a pressing machine according to thickness requirements of the film; 5) performing isostatic pressing, to be specific, performing isostatic pressing on the laminated tape; 6) cutting the tape, to be specific, cutting the tape into desired sizes; 7) performing latex discharging, to be specific, performing latex discharging at 0 to 450 DEG C at a temperature increasing speed of 0.5 DEG C/minute; 8) performing sintering, to be specific, performing sintering at 980 DEG C for 2 hours at a temperature increasing speed of 2 DEG C/minute; 9) performing laminating, to be specific, laminating the PET single-sided and double-sided adhesive films on the ferrite films by the aid of a laminating machine; and 10) performing squashing, to be specific, squashing the ferrite films.
Owner:SHENZHEN MICROGATE TECH

Chip inductance element manufactured by low-temperature co-firing ferrite unsintered tape

The invention provides a chip inductance element manufactured by a low-temperature co-firing ferrite unsintered tape. The chip inductance element is characterized in that the precise positioning punching is carried out on the ferrite unsintered tape; a screen printing method is adopted, and sliver paste is fully filled in through holes; sliver paste conductor patterns are printed on the unsintered tape, meanwhile, in order to prevent Ag diffusion caused by overhigh temperature in the use process of a device, a low-temperature glass protection coating is then printed on the sliver paste pattern surface, and the device failure caused by the Ag diffusion is prevented; the printed unsintered tape is sequentially placed into a tight lamination mold according to the predesigned layer number andthe sequence, and a complete multilayer base plate blank body is formed through isostatic pressing; the blank body subjected to isostatic pressing is divided into specific small blocks; the specific small blocks are put into a furnace, the temperature is raised to 450 DEG C, the heat preservation is carried out for 3 hours, the glue discharge is carried out, then, the temperature is raised to 900DEG C, and the heat insulation sintering is carried out; in the temperature reduction process, the temperature is controlled to be lowered to 250 DEG C in 10 hours, and then, the natural cooling along with the furnace is carried out; and the sliver brushed seal end of the sintered electric element is manufactured into the electrode, and the chip inductance element is obtained.
Owner:JIANGSU HUAXING ELECTRONICS CO LTD

Strip cutter for polytetrafluoroethylene sealing tape for thread sealing

The invention discloses a strip cutter for polytetrafluoroethylene sealing tape for thread sealing. The strip cutter comprises a rack, a motor, a speed reducer, a decoiling device, tension rollers, a cutting device and a coiling device. The cutting device is arranged between the decoiling device and the coiling device. The decoiling device, the tension rollers, the cutting device and the coiling device are arranged on the rack. The tension rollers are arranged on the two sides of the cutting device. The coiling device comprises an upper coiling device body and a lower coiling device body, wherein the upper coiling device body and the lower coiling device body are used for containing tape winding cylinders. The sealing tape passing through the cutting device conducts cylinder winding through the upper coiling device body and the lower coiling device body. The motor drives the coiling device to rotate. The speed reducer is connected between the motor and the coiling device. The strip cutter has the beneficial effects that the strip cutter for the polytetrafluoroethylene sealing tape cuts original wide sealing tape into sealing tape which is narrow in upper part and lower part in a spaced manner, cylinder winding is carried out, the production efficiency can be improved, and the sealing tape can be prevented from being drawn and deformed.
Owner:TIANJIN TIANSUBINHAI PTFE PLASTIC PROD

Nondestructive testing method for water distribution in drying process of roots of red-rooted salvia

The invention discloses a nondestructive testing method for water distribution in the drying process of roots of red-rooted salvia. Roots of red-rooted salvia samples with different drying times and different drying temperatures are coated with thread seal tapes in a sealed mode, and the coated roots of red-rooted salvia samples are placed for 3-5min at room temperature; a T2 spectrogram and proton density weighed images are obtained through the low-field nuclear magnetic resonance technology, the positions of 10 ms and 100 ms in the T2 spectrogram serve as boundaries, bound water exists at the positions of 0.1-10 ms, water not likely to flow exists at the positions of 10-100 ms, free water exists at the positions of 100-1,000 ms, the peak integral area serves as the relative content of the water, and therefore the relative content of the bound water, the relative content of the water not likely to flow and the relative content of the free water are obtained; distribution positions of the water in the roots of red-rooted salvia samples in the roots of red-rooted salvia samples are obtained according to the proton density weighed images, therefore, the distribution states of the bound water, the water not likely to flow and the free water of the roots of red-rooted salvia samples with the different drying times and the different drying temperatures are obtained, and then the water distribution in the drying process of the roots of red-rooted salvia is obtained.
Owner:SHANDONG ANALYSIS & TEST CENT

Anti-twisting winding core barrel for winding of water pipe connector PTFE thread seal tape and anti-twisting mechanism of anti-twisting winding core barrel

The invention discloses an anti-twisting winding core barrel for winding of water pipe connector PTFE thread seal tape and an anti-twisting mechanism of the anti-twisting winding core barrel, and belongs to the field of building materials. The anti-twisting winding core barrel is mainly suitable for water heating device installation and comprises a winding core barrel body, the center of the winding core barrel body is provided with a central hole, and the two sides of the winding core barrel body are provided with side walls; a hollow setting-out head rotating around the winding core barrel body is arranged between the two side walls and connected to the winding core barrel body through rotary arms movably connected with the winding core barrel body; and the front end of the setting-out head is smaller than the tail end of the setting-out head, and the PTFE thread seal tape is fed from the tail end and discharged from the front end. According to the anti-twisting winding core barrel for winding of the water pipe connector PTFE thread seal tape and the anti-twisting mechanism of the anti-twisting winding core barrel, twisting of the PTFE thread seal tape during using is avoided, construction is convenient, wasting is avoided, meanwhile, materials are saved, and the construction period is shortened.
Owner:朱卫东

A fully automatic raw material tape splitting machine

The invention disclose a full-automatic thread seal tape roll separator which comprises a frame body, a power driving mechanism and a control system, wherein a rotatable scale division rotary table is mounted on the frame body; a central rotating shaft and three rotating shafts are arranged on the scale division rotary table; the central rotating shaft is used for driving the scale division rotary table to rotate, and the three rotating shafts are uniformly distributed along the circumference of the scale division rotary table and can rotate independently; a roll core supplying device, a feeding device, a bonding device, a cutting-off device, a tail pressing device and an unloading device of thread seal tapes are sequentially mounted on the frame body on the outer side of the scale division rotary table in the clockwise direction; the roll core supplying device is used for automatically supplying roll cores for the rotating shafts of the scale division rotary table; the feeding device is used for conveying the thread seal tapes to the roll cores on the scale division rotary table and winding; the bonding device is used for bonding the thread seal tapes on the roll cores; the cutting-off device is used for cutting off the thread seal tapes; the tail pressing device is used for pressing the cutting-off thread seal tapes. The full-automatic thread seal tape roll separator has the advantages that the full-automatic operation of thread seal tape roll separation is achieved, the rolled length of the thread seal tapes is controlled accurately, and the production efficiency is improved.
Owner:FUJIAN CHUN FLAG MACHINERY IND & TRADE

PTFE tape numerical control film drawing machine

The invention discloses a PTFE tape numerical control film drawing machine which comprises a film drawing machine body; the film drawing machine body comprises an unwinding device, a heating and stretching device, a high-temperature shaping device, a thickness measuring device and a winding device; a locating shaft is arranged on one side of the heating and stretching device; two layers of rollingshafts are arranged in the high-temperature shaping device, and are connected through a tape; a second motor is arranged at the upper end of the high-temperature shaping device; a second driving shaft is arranged at the lower end of the second motor; a first fan is arranged at the lower end of the second driving shaft; a double-head motor is arranged at the lower end of the inner wall of the high-temperature shaping device; second fans are arranged at the two ends of the double-head motor; and a plurality of heat dissipation holes are formed in the high-temperature shaping device. By using the closed type high-temperature shaping device, the heating time of the tape is lengthened, and the problems that the production efficiency is low and the production quality is poor due to the fact that the continuous heating efficiency on a PTFE tape is low when a common tape drawing machine machines the PTFE tape are solved.
Owner:FUJIAN CHUN FLAG MACHINERY IND & TRADE

Double-end universal fast mounting instrument valve

The invention discloses a double-end universal fast mounting instrument valve which is composed of an upper connection adjusting nut (1), an upper sealing ring (2), a valve body (3), a ball valve clack (4), a lower connection adjusting nut (5), a lower sealing ring (6) and operating handles (7). The double-end universal fast mounting instrument valve is characterized in that integrated type structural design is adopted, and the upper connection adjusting nut (1), the lower connection adjusting nut (5), the upper sealing ring (2), the lower sealing ring (6) and the like are integrated on the valve body (3). When butt joint is carried out on the threaded portion of an instrument and the instrument valve, sealing by thread seal tape is not needed, the connecting part can be adjusted in a universal mode, and thus the double-end universal fast mounting instrument valve is simpler and more convenient to mount. The problems that a common copper instrument valve needs to be sealed by the thread seal tape and is prone to leakage and difficult to adjust in direction are solved. Compared with the prior art, double-end loose joint inner threaded connection is adopted for the upper connection adjusting nut (1) and the lower connection adjusting nut (5), hard seal is adopted between the upper sealing ring (2) and a metal end face and between the lower sealing ring (6) and the metal end face, the thread seal tape does not need to be used any more, leakage is prevented thoroughly, directions of the valve body (3) and the instrument connected with the valve body (3) can be freely adjusted, and the instrument can be turned on and off and observed conveniently.
Owner:蒋介中

Clamping hook type quick connector device

The invention relates to a water pump connector connecting device, in particular to a clamping hook type quick connector device, which comprises a water outlet connector, one end of the water outlet connector is fixed to a water pump, a sleeve is arranged at the other end of the water outlet connector, and at least two clamping hooks are arranged on the outer circle face of the sleeve in an annular array mode; a pipe connector, wherein a positioning pipe and a fixing sleeve are arranged at the bottom of the pipe connector, the fixing sleeve is located at the top of the positioning pipe, an annular connecting groove is arranged between the fixing sleeve and the positioning pipe, and clamping grooves are arranged on the fixing sleeve; a sealing element mounted on the positioning pipe; and the positioning pipe is inserted into the sleeve, the sleeve is inserted into the connecting groove, the clamping grooves are inserted into the clamping hooks, the clamping grooves correspond to the clamping hooks one to one, and the sealing element seals the positioning pipe and the sleeve. According to the clamping hook type quick connector device provided by the invention, the clamping grooves on the pipe connector is matched with the clamping hooks on the water outlet connector to achieve fixed connection, disassembly and assembly can be achieved by rotating the pipe connector, sealing is achieved through the sealing element, thread seal tape winding is not needed, tools are not needed, labor and trouble are saved, and the disassembly and assembly speed is high.
Owner:SUZHOU WODA GARDEN MACHINERY

Minitype teflon tape winding device for hydraulic engineering

The invention relates to a winding device, in particular to a minitype teflon tape winding device for hydraulic engineering. The technical scheme is how to design the minitype teflon tape winding device which can quickly wind a water pipe instead of persons, is convenient to operate, is high in working efficiency and is time-saving and labor-saving. The minitype teflon tape winding device for hydraulic engineering comprises a square shell and a front cover, wherein a cylindrical shell is mounted on one side of the square shell; and the front cover is hinged to one side which is located outsidethe square shell and is in contact fit with an opening of the cylindrical shell. According to the minitype teflon tape winding device for hydraulic engineering disclosed by the invention, the teflontape covers a discharging device, the head of the teflon tape is pulled and is then moved to a proper position; and a person picks up the water pipe, and enables the water pipe to pass through the front cover and contact with the discharging device; and moreover, a driving device is started and then runs, the discharging device is driven through operation of the driving device to be rotated positively, and the teflon tape is driven through positive rotation of the discharging device so as to be rotated positively and is wound on a threaded part of the water pipe; and thus, the teflon tape is wound on the threaded part of the water pipe without needing manual operations, and therefore, the winding device is convenient to operate and is high in working efficiency.
Owner:杨敏姗
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