PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Laser welded ptfe tube
Classification:
Industry dynamics
Author:
Teflon tube little sister
Source:
Teflon tube little sister
Release time:
2006-03-03
Visits:
1. laser welded ptfe tube
Laser welding of ptfe tubes has its advantages and disadvantages.
The advantages of laser welding are:
The lap edge is shorter than traditional spot welding, which is conducive to lightweight body and cost reduction.
The heat input is small, the heat affected zone is small, the shrinkage and deformation of the workpiece are small, and there is no need for post-weld orthopedics.
High weld strength, fast welding speed, narrow weld and good surface condition, eliminating post-weld cleaning and other work.
Through the optical fiber to achieve long-distance, ordinary methods difficult to reach the site, multi-channel simultaneous or time-sharing welding.
The laser focus spot of the laser beam is small, the power density is high, and it can weld some alloy materials with high melting point and high strength.
High production efficiency, stable and reliable processing quality, good economic and social benefits.
The disadvantages of laser welding are:
The weld bead solidifies rapidly and may have defects of porosity and embrittlement.
Due to the large spatter, the weld of penetration welding is coarser than brazing, but the strength is much stronger than ordinary spot welding.
Compared with other welding methods, the cost of lasers and related systems is higher, and the initial one-time investment is larger.
It is difficult to control the laser welding process with filler wire. Laser welding with filler wire belongs to fusion welding, and the focused spot is irradiated on the workpiece and the welding wire respectively. The molten pool is small, and the accurate control of the relative position of the filament is very important to make the wire melt evenly.
Laser welding requires high precision of workpiece assembly due to the small size of laser focus spot and narrow weld. The position of the weldment must be very accurate, and the position of the beam on the workpiece must not be significantly offset, and must be within the focus range of the laser beam. If the workpiece assembly accuracy or beam positioning accuracy can not meet the requirements, it is easy to cause welding defects.
Figure 1: Laser welded ptfe tube Source: Shenzhen Dankai
In addition, due to the above shortcomings, the technical and economic strength of automobile manufacturers put forward higher requirements, restricting the wide application of laser welding technology in China. At present, its application in the white body manufacturing industry of automobiles in China is still relatively limited.
If welding is required, we generally recommend FEP tubes and PFA tubes. The welding process of FEP tubes and PFA tubes is relatively mature, and the laser welding ptfe light welding process is relatively poor.
2. PTFE plate manufacturer
PTFE sheet is a kind of engineering plastic with excellent comprehensive performance, and its excellent performance is unmatched by other plastics.
Its advantages are as follows:
1. a wide range of high and low temperature use. It can be used for a long time in the range of -180 ℃ ~ 250 ℃;
2. excellent chemical stability. Strong acid, strong alkali, strong oxidant and other corrosive media can not play any role;
3. a high degree of electrical insulation. It is not affected by environmental conditions and frequency, and is a class C insulating material;
The 4. has good lubricity. After adding different kinds of filling materials, the hardness and wear resistance are enhanced, and it is an ideal material for oil-free lubrication;
5. good resistance to atmospheric aging. Exposed to the atmosphere for many years, the surface and its properties remain unchanged.
PTFE sheet characteristics:
The maximum amplitude of PTFE plate is 2.5 meters. It is made of suspended PTFE resin by molding. According to the production process, it is divided into two kinds of molded plate and turning plate. Among the known plastics, polytetrafluoroethylene has the best chemical resistance and dielectric properties, does not age, does not stick, and can be used at a temperature of -180 ° C to 260 ° C under no load. It has the lowest friction coefficient among known solid materials.
Figure 2: PTFE Sheet Source: Shenzhen Dankai
PTFE plate application areas:
Processing and production of gaskets, seals, lining partitions, scrapers, guide rails, and electrical insulation parts used at various frequencies, bridge support sliders.
Shenzhen Dankai Technology Co., Ltd. (ShenZhen DanKai Technology Co., Ltd.), whose predecessor was the Fluoroplastic Material Factory of Dongguan Dandi Insulation Material Co., Ltd. established in 1998, specializes in the research and development, production and sales of FEP, PFA, PTFE and other fluoroplastic tube rod sheet membrane products and other insulation materials. The company has international standards of senior R & D team and the introduction of foreign fluorine plastic products production line. Some fluoroplastic products through ISO9001, SGS, FDA certification, Huawei, Foxconn, the United States, ZTE, Intel, AirTAC and other domestic and foreign cooperation customers fully affirmed. The company's main products are: ① pipes: Ptfe pipes, Fep pipes, Pfa pipes, Pvdf pipes; ② Heat shrinkable tubes: Ptfe heat shrinkable tubes, Fep heat shrinkable tubes, Pfa heat shrinkable tubes, Pvdf heat shrinkable tubes; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate rod film, etc. PE: PE, special, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.
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