Substrate scratchesSubstrate scratches are scratches on the surface of cold-rolled substrates due to rolling or unwinding. Since the zinc-iron reaction rate at the substrate scratch is significantly higher than that of the normal surface, the defects on the substrate will become more pronounced after hot-dip galvanizing. By strengthening the process on the quality of the inspection, can eliminate the scratched substrate into the galvanized line.Sink roll scratchesSunken roller scratches the strip out of the zinc pot on the board after the intermittent or continuous strip of roller prints, if the roller is lighter and no handle can be degraded, if the feel was scratched only do waste disposal , Must stop for roll. It is believed that the direct cause of this failure is that the speed between the strip and the sunken roller is different, and the roller system does not turn or rotates, so that the strip is in contact with the roller body. The strip surface is scratched by the roll surface.
The reason for this phenomenon is multifaceted, because the sunken roller in the zinc pot of zinc in this special location, no transmission equipment, but a driven steering roller, compley by the process section of the tension and friction rotation. Therefore, it is the result of a common or single effect by factors such as mechanical structure specificity, production process control, installation and use of sunken rolls.The solution is: Process improvement:(1) Zinc pot zinc solution temperature control (460 ± 5) , in order to increase the mobility of zinc liquid.(2) At any time to control and adjust the chemical composition of zinc liquid content, the general control of iron content below 0.05%, aluminum content should be controlled between 0.15% to 0.22%. In the production of thin strip due to the smaller tension, the board is easy to sink sink roll. At this point may be appropriate to add aluminum ingots to reduce the iron content, which will help reduce the viscosity of zinc liquid to increase the mobility of zinc liquid.(3) Control speed and tension can not change too fast.Equipment installation and use of the improvement: (1) roller processing after installation to check the surface roughness and groove is chamfering, with or without burr, with or without injury. (2) check the roller static balance, the appropriate increase in counterweight. (3) installed after the preload to the test platform (imitation zinc platform), check the level of parallelism to meet the installation requirements of the drawings. (4) sunken roll in the use of zinc into the pot before the first must be placed in the oven preheat, the temperature is close to the temperature of zinc is appropriate. Preheating purposes: First, through the slow preheating to reduce the temperature difference between the zinc pot is too large lead to burst burst and parts of the sudden deformation, improve service life; the second is to prevent the hot surface of the dross is not easy to remove, (5) roller into the zinc pot must be the surface of the zinc pot scum fishing net, bearing position and shaft hole can not stick slag, to prevent the roller stuck does not turn.
Other roller scratchesOther roller scratches are scratches caused by full-line rollers, steering rollers, tension rollers, roll-off rollers, which are divided into drive rollers and non-drive rollers. The main reason for this type of scratches is that the roller speed of the contact strip is not consistent with the running speed of the strip, and the scratches caused by the relative sliding of the strip and the roller.The solution is: If you find a scratch, you should immediay confirm whether the scratch before plating or plating after scratches, and then determine the scratch area. The scratches caused by the drive rollers can be resolved by speed matching; scratches China Indoor type polyester resins suppliers caused by non-drive rollers are notified to the mechanical maintenance personnel to check the roller bearings. If the bearing is not problematic, by increasing the tension in the area, With the transmission friction to reduce the scratches.
Megosztás a facebookonIn recent years, despite the largefluctuations of the nickel price, but nickel carbonyl powder prices have beenstable at 12,000 to $ 13,000 per ton.mhcmp. Moreover, as technology advances, especiallytoday's rapid development of nanotechnology, it is foreseeable that the demand ofnickel carbonyl and products will increase significantly. Pyrolysis nickelcarbonyl, can be prepared a variety of products with different properties, differentshapes, such as zero-dimensional materials (nm, micron powder material),one-dimensional material (needle and filamentary materials), two-dimensionalmaterial (film material) and three-dimensional materials (nickel-pill, coating,gradient and hollow materials) and so on.Accordingto the statistics of the international nickel market in recent years, the consumptionvolume of a variety of nickel carbonyl products which produced by carbonyl is about13 to 15 million tons, accounting for almost 17% of the average amount ofnickel consumption in the world. However, due to variousreasons, it has not been possible up to production.
Due to the specialstructure state products produced by carbonyl with excellent physical andchemical characteristics, so they are the important raw materials in many areas,especially in high-tech industry.Chinesenickel carbonyl powder currently is only produced by Nuclear Corporation. The main products arenickel carbonyl powder, powder coated and nickel carbonyl --- alloy powders,mainly for military use, China's nickel carbonyl products are now mainly relyon imports. In addition, the nickel-pillwhich mainly used in steel and chemical raw materials production, because thedemand of stainless steel expanded and the material properties requirements increased,the annual consumption can up to 5,000 tons., in2005, the requires of sub-micron (nanometer) ultrafine nickel powder was reached hundreds of tons. And with the new technology, newmaterials continuous developing, especially meet high-performance capabilitiesand structural materials needs, such as nickel inner electrode MLCC, PTCthermistor, production and application of high-performance carbide, etc.
Due to special structural state nickelproducts prepared by carbonyl with excellent physical and chemical properties, isan important raw material in many fields, especially in high-tech industry, sothe market prospect is very broad. In addition, the worlds nickel carbonyl products market has beenmonopolized by the International Nickel Company, the international market priceof nickel carbonyl also become a monopoly price.Design capacity is 500 tons of nickel carbonyl powder. In recent years, with the energy,communications technology and the continuous development of the family car,nickel carbonyl products showed a rapid upward trend, annual growth rate isabout 10%. Carbonyl is a process of refining nickel, simple,low energy consumption, high extraction rate, also conducive to the enrichmentof precious China Hydroxylated polyester resin suppliers metals, is a no waste environmental technology. According to Chinese electronics, energy and powder metallurgymarket research, nickel carbonyl powder consumption growth is very rapid, onlyin 1999, Chinese nickel-metal hydride battery industry was imported nickelcarbonyl powder up to 2200 tons, and still fast grow with 20% annual growthrate, in 2004, Chinese nickel carbonyl powder consumption was up to 3000 ~ 3500tons, nickel foam consumption was around 800 tons
Megosztás a facebookonThis will cause them to drown. When you remove fleas from your pet’s hair, immediay place them in water and dish soap mixture. What better way to get rid of fleas than to understand exactly where and how they reproduce and then cut them off before they are able to do so?As you can see, there is really nothing to getting rid of fleas on pets!
All you have to do is become the world’s leading expert on fleas and their life cycle. But it won’t do a bit of good if you don’t kill, remove and deter the fleas from the environment where your pet China Thermoset polyester resins dwells. And once again, it would be a good idea after the bath to go over your pet’s entire coat with a good flea comb. Good luck and good day!
Again, read product directions for proper procedures and timing and whatnot. Your life is now flea free.Also, it wouldn’t hurt to know and understand the life cycle of a flea. Dead or alive, they need to be removed.I hope this article has helped you in your quest to learn how to get rid of fleas on pets. You can find one of these at your local dollar store… uh, $1. Even if you’re too cheap to buy a real flea comb, either at your local pet store or online, at least comb through your pet’s hair with a regular fine-toothed comb.Consult with your veterinarian if you need help picking the right one, or simply read reviews online for some of the more popular flea shampoos on Amazon.
This method takes some effort on your part, especially if your furry friend doesn’t like bathing.Have I mentioned that you should buy a decent flea comb? If nothing else, combing the fleas out of your pet’s hair is the least you should do. Or look between your couch cushions.How To Eradicate Fleas on PetsPhysically killing and removing fleas from your pet is essential, of course. Then read long internet posts on how to get rid of fleas from your house and yard or call a Flea Control Brisbane professional company.com. Don’t forget to repeat any flea killing or removal steps every couple of days for at least two weeks
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