How to Choose High Quality Decorative Stainless Steel Sheets?

Recently, colored stainless steel sheets are widely used in decoration, which brings a fresh feeling to the decoration market. Its various styles, affordable price, and durability make them become one of the favorite decorative materials. So, we will share some tips to select high-quality decorative steel stainless sheets.
1. Distinguish sheet materials
Currently, decorative stainless steel sheets in the market are mainly processed with 201 type, 304 type and 316 type of stainless steel sheets. Among them, 316 type has the best corrosion resistance, and the worst quality of the material is 201 type. Also their price has big difference. Some manufacturers will replace 304 type and 316 type with 201 type or sell those decorative sheets that are changed the vacuum ion plating coloring process as the water plating coloring process, which causes color fading, rust and cracking for colored mirror stainless steel sheets and stainless steel titanium sheets during the decoration. Therefore, the inspection on sheet material during the purchase process is essential and the material can be distinguished by detecting syrup.

2. Coloring process on surface
Coloring process is also an important factor that determines the price of decorative stainless steel sheets. The difference between the vacuum ion plating coloring and the water plating coloring is that the combination force of the vacuum ion plating coloring layer and the work device surface is larger than that of the water plating coloring. Furthermore, hardness, wear resistance and corrosion resistance of the vacuum ion plating coloring are also better. The vacuum ion plating coloring coating does not produce toxic or polluting substances while the water plating coloring does.
3. Observing the metal surface
As colored steel plate stainless steel sheets are mainly used for building decoration, its decorative ornamental is particularly important. So when you inspect the products, you need to examine whether there is color difference, even coloring, scratches, blisters, and peeling water marks. For instance, mirror stainless steel sheets have a mirror effect, if their quality is good, the surface should be no grinding flowers or hoof prints, and the brightness is higher.
4. Protective film quality
After the processing, colored stainless steel products need to affix a protective film on the surface, which can guarantee the fineness will not be contaminated or be scratched by hard objects. But if the protective film is of poor quality and is placed for a long time, there will be chalking, difficult to tear or there will be a lot of glue stuck on the stainless steel surface after it is torn which causes the metal surface unattractive or have trouble cleaning. You can tear a large area of protective film to inspect the quality; after the installation is completed, you should tear the film as soon as possible, especially outdoor decoration works.

Introduction to Neodymium Magnets

Neodymium magnet is also known as NdFeB magnet, and its formula is Nd2Fe14B, the artificial permanent magnet. NdFeB magnets are the highest performance magnets currently found in the commercialization, called as Magneto, with a high maximum magnetic energy product (BHmax) higher than ferrite (Ferrite) more than 10 times. They enjoy a wonderful mechanical performance. Their operating temperature can be up to 200 degrees Celsius. And their hardness, stable performance, and competitive price make their wide application. However, because their strong chemical activity, custom Neodymium magnets must deal with its surface coating.
Type
Neodymium magnets can be divided into two types of sintered NdFeB and bonded NdFeB. Injection molding is actually bonded; sintered NdFeB is heated by high temperature vacuum. NdFeB magnets: Material grades have N35-N52; various shapes according to specific requirements of processing:, round, square, punching, magnetic tile, magnetic, convex, trapezoidal; despite of these advantages, it is easy to surface rust, so usually require some protective surface treatment: nickel, zinc, gold-plated, epoxy resin.
Process
Process: Ingredients¡úmelting ingot/rejection with flour¡úsintering temper¡úpressure mould¡úsintering temper¡úmagnetic detection¡úgrinding¡úcut-off processing¡úfinished plating. Wherein the ingredients are basic and on the key is sintering temper. Production tools and performance testing tools for rough Neodymium magnets: smelting furnace, thrown with stove, cracker, jet milling, molding machine, vacuum packaging machine, isostatic presses, sintering furnace, vacuum heat treatment furnace, magnetic testing meter, and gauss meter.

Application
Nowadays, neodymium magnets are rapidly developed and enjoy a wide range of applications. In many fields, it is possible to replace the traditional ferrite magnets, alnico and SmCo magnets such as motors, equipment and instrumentation, automotive, petrochemical industry and magnetic health care products. They can be produced a variety of shapes: such as disc magnets, ring magnets, rectangular magnets, arc-shaped magnets and other magnets. Everyday electronic products, such as hard drives, mobile phones, headsets, etc., are the presence of a neodymium magnet.
Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.
Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, meter, sound meter, a reed switch, sensors.
Electric field: VCM, CDDVD-ROM, generators, motors, servo motors, micro-motors, motors, vibration motors.
Machinery and equipment: magnetic separation, magnetic separation, magnetic crane, magnetic machinery.
Healthcare: MRI scanners, medical equipment, magnetic health products, magnetic fuel economy and so on.
Other industries: magnetized wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, doors and windows magnetic, magnetic stationery, luggage magnetic, leather magnetic toys, magnetic tools, gifts and packaging.
For instance, arc Neodymium magnets play an increasingly important role in the field of professional audio. Their small size, light weight, and great flux make them become ideally suited for professional sound reinforcement and stage performances of large stadiums.

Introduction to Seam Welding Machine

Seam welding machine is the weldment assembled as lap or butt joints and placed between two electrode wheels, electrode wheels press weldments and rotate electrode, conduct continuous or intermittent pulse transmission, forming a continuous seam resistance welding machine. Seam welding machine china is widely used in the manufacture of connectors that require sealing, welding may also be used an ordinary non-tightness of sheet metal, the thickness of the metal material of the welded is usually 0.1 ~ 2.5mm.
Structural principle of seam welder
Welding host is using a cantilever structure. After welding of the two cantilevers, stress relief annealed treatment will be conducted to ensure the long-term non-deformation beam.
According to the thickness of different welding workpieces, Pneumatic style or cylinder style will be utilized to ensure there is enough pressure to prevent hot deformation during the welding process. Welding mandrel inlaid with copper mold, providing back-seam gas protection; processing of different welding process trough according to the cylinder or flat workpieces, to achieve side welding molding. The distance between welding mandrel and keyboard is adjustable, and adapts to different workpiece welding requirements. Welding torch employs DC servo motor, rack and pinion. After grinding, the track surface will be smoothly running and stable and reliable welding is available. The entire trachea, the cable should be placed in the towline, clean aesthetic appearance, while avoiding the cable disconnected.
Features of Seam welder
1. Roller electrode surface is prone to cause sticky loss to damage the weld surface quality deterioration, so the electrode dressing should be paid attention to.
2. seam welding machine is made of a part of each other lap joints, so multi-spot will be much more serious than that of the shunt, which brings difficulties to the high conductivity aluminum plate welding and magnesium alloys.
3. As the cross-sectional area of the weld seam welding is usually set 2 times than the vertical area of the base material (larger this ratio, the thinner plates), which inevitably destructs the heat zone in the base material. Thus, very little emphasis on the seam welder joints strength of the structure; the main requirements are good sealing and corrosion resistance.

Site of clean-up and maintenance measures
1. After the welding is completed, the power should be turned off, clean up the debris at site. Welding operators must hold a special operations permit before induction. When the welding machine is disable, there must be someone responsible for the custody to take the necessary measures to moisture corrosion.
2. The welding operator shall correct wear a suitable face mask filter, dry canvas overalls and gloves, rubber insulated shoes, goggles slag and other security products.
3. Welders should use the power-switch with insurance, and is housed in a sealed box; must be checked prior to use one or two insulated wire is complete and correct wiring, welding clamp handles are insulated well.