A technician performs MPI on a pipeline to check for stress corrosion cracking using what is known as the "black and white" method. No indications of cracking appear in this picture; the only marks are the "footprints" of the magnetic yoke and drip marks.A close-up of the surface of a (different) pipeline showing indications of stress corrosion cracking (two clusters of small black lines) revealed by MPI. Cracks that would normally have been invisible are detectable due to the magnetic particles clustering at the crack openings. The scale at the bottom is numbered in centimetres.Magnetic particle Inspection (MPI) is a non-destructive testing (NDT) process for detecting surface and shallow subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt, and some of their alloys.
The blue lanthanated electrodes are popular due to the relative ease of striking an arc and lower amperage required. They perform exceptionally well in both AC & DC applications, and are a popular general use electrode. Blue electrodes are effective for welding aluminum alloys, magnesium alloys, nickel alloys, copper alloys, titanium alloys, low-alloyed steels, and non-corroding steels.
Grey ceriated electrodes are popular due to their extreme ease of striking an arc with lower amperages, and their extraordinary performance with regard to DC welding applications. They perform best with titanium alloys, copper alloys, magnesium alloys, aluminum alloys, nickel alloys, non-corroding steels, and low-alloyed steels.
WC20 Welding cerium Tungsten Electrode
Cerium-tungsten electrode is a non-radiative and green products .It has good starting arc performance under the condition of low current .It is known to be especially good for direct current welding with low amperage because it starts very easily at low amps .Therefore it is very popular to be used for the welding of pipeline ,fine parts, short welding cycles and given number welding .
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The gold lanthanated tungsten electrodes contain less lanthanum than their blue counterparts and are best used in DC applications. They are best for welds with titanium alloys, copper alloys, nickel alloys, and non-corroding steel.
The red thoriated type is Americas favorite electrode for a reason. Extremely long lasting and highly durable, these electrodes are a staple in DC welding applications. These red electrodes are best for copper alloys, nickel alloys, titanium alloys, and non-corroding steels.
WT Thorium- Tungsten Electrode
It is widely used as an additive oxide electrode ,having much more advanced comprehensive welding performance than the properties of Pure Tungsten Electrode and other additive oxide electrodes. It can not be replaced by other oxide electrodes during the long use process. It can be operated easily and current load is high .It can produce arc easily and steadily ,and the gap of the? breaking arc is big ,loss less and long life .It has much higher recrystallizing temperature, much better conductivity and better mechanical cutting property .It is used for welding carbon steel, stainless steel, nickel alloy and titanium metal. It is the first selection material for high quality welding.
1.2344 tool steel, we can supply the round bar, flat bar, plate and square block. Diameters can be sawn to your required lengths as one offs or multiple cut pieces. Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.
*Hot Rolled round bar
*Hot Rolled Steel Plate
*Forged round bar
*Forged Flat bar
We can supplie Cobalt, listing below :
Cobalt Conc. 6-8%
Cobalt Intermediate 20-30%
Cobalt metal 99.3% min
Cobalt metal 99.3% min
Cobalt metal 99.3% min
Cobalt metal 99.8% min
Cobalt metal 99.8% min
Cobalt metal 99.8% min
Cobalt Carbonates 46% min
Cobalt Chloride 24% min
Cobalt Monoxide 78% min
Cobalt oxides 72% min
Cobalt oxides 72% min
Cobalt Powder 99.5% min
Cobalt sulphates 20.5% min
please feel free to contatc us, we will send to you or best offer , Regards'
Commonly used for steel structure construction, shipyard, offshore facilities, bridge construction, and automobile manufacturing, NOVA supplies welding electrodes made with variety of materials such as Carbon steel, low alloy steel, stainless steel, nickel and nickel alloy, cast iron, copper and copper alloy, surfacing electrode, etc.
M42 steel, otai does not act as material handler .
Otai is stable and reliable supplier for fortune 500 companies at home and abroad, such as thyssenkrupp, china north industries group corporation limited. Otai exports various tool steel and alloy to more than 30 countries from Europe and American, middle east and asia. our steel materials meet DIN/ ASTM/EN/JIS ect different international standards.
The M42 high speed steel, Other Known Names are 1.3247, HS 2-10-1-8, S500, E M42, REX M42�, Dynamax. M42 is a molybdenum series high-speed steel alloy with an additional 8 or 10 percent cobalt, it has superior red hardness and wearing resistance as compared to conventional high-speed steels. This allows for shorter cycle times in production environments due to its higher cutting speeds and from the increase in time between tool changes. M42 steel costs less when compared to those same tools made of carbide.
Baoji Hanz Material Technology Co., Ltd. is a professional tungsten material manufacturer and supplier located in Gaoxin District, Baoji City, Shaanxi Province. Based on the three pillar industries of Baoji, we mainly produce non-ferrous metal products, petroleum machinery and folk culture products. Our main products are titanium, tungsten and molybdenum pipe, plates, bars and wires. They are widely applied in geological, petroleum, chemical, pharmaceutical, military and other applications in the important areas of the national economy.
In addition to the tungsten bar weight, our hot products also contain copper tungsten alloy products such as copper tungsten rod. Our tungsten heavy alloy is available as a machinable blank or precision machined part to meet customer requirements and can be used in many different applications.
Baoji Hanz Material Technology Co., Ltd. sincerely provides quality tungsten material products with competitive prices. Please feel free to contact us.
As a professional tungsten super shot manufacturer, Baoji Hanz Material Technology Co., Ltd. also have a variety of tungsten shot for sale. The main advantage of tungsten pellets is that they are very dense and hard. The higher density compared to other shot blasting materials (such as steel, tantalum and lead) allows it to fly over long distances without slowing down. The high hardness of the tungsten pellets provides excellent pellet permeability and is less likely to deform upon impact. As for tungsten carbide ball, it is ideal for applications that must have extremely high hardness and high wear resistance and impact. They are ideal for high temperature, corrosion, humidity, wear and harsh lubrication conditions. We can also provide polished tungsten sphere if you need them.
Baoji Hanz Material Technology Co., Ltd. sincerely provides quality tungsten material products with competitive prices. Please feel free to contact us.
Baoji Hanz Material Technology Co., Ltd. is committed to tungsten rod material for many years. Our products can be used for a wide range of applications. Tungsten copper rod has high mechanical properties and excellent corrosion resistance. They are commonly used in oil equipment to prevent contact oxidation. Tungsten plate armor can effectively protect you from bullet damage. Tungsten micron wire is commonly used to make bulbs and tungsten filament resistors. In addition, it can also be used to manufacture optical instruments, electric vacuum components, and high temperature resistant parts.
Baoji Hanz Material Technology Co., Ltd. sincerely provides quality tungsten material products with competitive prices. Please feel free to contact us.
Operating instruction
1. Use special hoist tools to hoist graphite electrode. It is strictly forbad to prize electrode ends up with crowbar. It must be handled with great care during transport to avoid being struck.
2. Graphite electrode must be kept away from being moistened or wetted by rain, snow and water, and must be kept dry.
3. Carefully checking before making connection, make sure that socket and nipple thread is not damaged, nipple pitch plug is in.
4. Blow the nipple and socket threads with compressed air.
5. It must be dried in the furnace before use, the drying temperature in the furnace should be less than 150,the drying period should be more 30 hours
6. Graphite electrode must be connected and contacted closely and straightly.Use moment spanner for connecting electrode with suitable force. Mustnt decline.
7. The holding device must hold the electrode tightly, good contact and no arc.
8. To avoid the electrode breakage, put the large materials in lower part and small materials in the upper part. Insulating materials should not be put into the furnace. The working current of electrode must be conformity with the allowable current of electrode in the instructions.
These isolators are similar to the previous but with the exception that the dissipation of energy is obtained also through the use of one or more lead cores.
Lead (used here at a level of gg.go% purity) has the property of undergoing plastic deformation as it dissipate energy and then re-crystallizing after a cycle of plastic deformation.
Because of this, it is able to sustain an unlimited number of hysteresis loops.
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