Improvements in technology, materials, condition detection, reliability maintenance processes, and machining processes make bearing repair technically possible. Technically, bearing repair is the repair or replacement of damaged parts of the bearing to meet the state requirements of the new bearing. For example, after long-term use of bearings, rolling elements, raceways, pins and other components inevitably have fatigue damage. During the bearing repair process, the bearings are fully repaired by grinding the raceways, replacing rolling elements, pins and other components. . In this way, its functional components or surfaces are fully compliant with the requirements of the new bearings. 2.2 Market feasibility With the intensification of competition in the industry, various manufacturers have tried their best to reduce equipment maintenance and production costs in order to improve the market competitiveness of products. On the other hand, with the rising prices of raw materials such as steel, the rising price of bearings has become the main reason for the increase in production costs of industrial enterprises. Compared to the manufacture of new bearings, the high-quality repair process can restore the bearings to the new bearing in 1/3 of the time. Compared with the purchase of new bearings, bearing repair technology can help industrial enterprises to save at least 40% or even higher procurement costs, and under normal use and maintenance, the repaired bearings can fully achieve the performance of new bearings. In this way, bearing repair has very good market feasibility. 2.3 The need for energy conservation Bearing repair is more environmentally friendly than new bearing manufacturing, requiring less energy input and reducing raw material consumption and waste. The main energy consumption for new bearing manufacturing includes steel, forging, heat treatment and grinding, all of which can be saved by bearing repair. In addition to cost and time savings, bearing repair is most likely to achieve a bearing life cycle. Research by authoritative research institutes shows that after repair, the life cycle of the bearing can be the same as the life cycle of the new bearing. The repaired bearing re-uses the proven reliable bearing steel material, thus further reducing the risk of bearing material failure. Replacement parts must be of the same material and tolerances as the original manufacturer or equivalent, and repairs that do not conform to the original manufacturing specifications will increase the risk of premature failure. Previous page next page
(1)Tubing : CPVC is mainly used for processing tubing and hot water delivery
and corrosion medium. It can keep enough strength if the temperature is less
than 100℃ and can be
used for long time under higher inner pressure. CPVC pipe can be used as hot
sewage pipe, electroplating solution piping, thermochemistry agent transfer
piping of enterprises and the wet chlorine transfer piping.
(2) Fitting : CPVC Resin
can be used to produce the fittings of flow pipe, filtering material, and
spin-drier etc, as well as electrical appliances and electronic parts such as
wire way, conductor protective layer, electric switch, fuse closure door and
insulation material of cable. etc.
(3) Corrugated
board : the CPVC corrugated board has the natural corrosion resistance,
resistance to high (low) temperature, heat insulation performance is excellent.
(4)Foaming
material :The heat
resistance of foaming material of CPVC is better than that of PVC. The
shrinkage at high temperature is very small. It can be used as heat
preservation material of heat water pipe and steam pipe and so on. The
retentivity to solvent of CPVA with chlorine content more than 60% is very
good. The CPVC can be put into the solvent for foaming which can produce the
gas while heated, and you can get the homogeneous and minor forming gas. The
solvent such as hydrocarbon, aether and aldehyde etc with boiling point of 50- 160℃ can be used as vesicant.
Packing and Storage :
Kraft-paper
bag, Net Weight of 25±0.2kg per bag ; the product should be stored in dry and
ventilated warehouse, to prevent sunlight and moisture, stack height no more
than 10 bags, It is not dangerous cargo.
Advantage
of CPVC Resin
CPVC resin has excellent high temperature
resistance, corrosion resistance and flame retardant properties, widely used in
production of different industrial pipe, hot and cold water pipe and fire
fighting pipeline, superiority as follows :
(1) Widely use scope: CPVC the vicat softening point higher 40℃ than PVC resin, rigid PVC products
safe use of the average temperature is not more than 60℃, and CPVC hard products can be
used between 40℃ and 98 ℃ for a long time, it`s the few
polymer can be used in high temperature and high pressure.
(2) The superior mechanical
properties : CPVC tensile strength than
PVC increases by about 50%, than ABS resin, PP resin increases by about 1
times. Especially close to 100℃, CPVC can still maintain a strong rigidity, can fully meet at this
temperature to the requirements of the equipment and pipeline.
(3) Chemical resistance: CPVC not
only in room temperature resistance to chemical corrosion performance is
excellent, and at higher temperature still has the very good acid and alkali
resistance, chemical resistance, far better than PVC and other resin.
(4) Good flame retardant : CPVC
excellent flame retardant automatic quench, the time limit oxygen index is
sixty, because in the air will not fire, with no flame drip, restricted
diffusion flame and the smoke generation characteristics.
(5) Thermal conductivity: heat
conduction coefficient of CPVC is only 0.105 KW/(mk), with CPVC processing of
heat pipe, heat loss, less of heat insulating layer.
(6) From the influence of residual
chlorine in water, Polyolefin materials (such as PP, PE) meet water residual
chlorine can be decomposed, and CPVC is not be water residual chlorine
influence, won't appear crack and drip.
(7) Processing formability: The
same processing methods with PVC products, very easy and convenient
CPVC Compound,Pipes Grade CPVC Compound,Fittings Grade CPVC Compound Shandong Gaoxin Chemical Co.,Ltd , http://www.gaoxinchem.com