PTA Powder
Main application:Repair and
strengthen workpiece surface, significantly
Welding method:PTA welding
Main equipment:PTA welding
machine
Flame core temperature: about 10000℃
Technological characteristics:PTA has high
temperature, concentrated energy, stable combustion, small heat affected zone,
fast welding speed, high production efficiency, easy to obtain low dilution
rate of surfacing layer, surfacing layer and workpiece matrix are metallurgical
bonding,, bonding strength is high.
PTA welding technology is one of surface
strengthening methods, which has high deposition rate, low dilution rate, and
could be applied with many kinds of powder. The manufacturing craft of PTA
powder is normally gas atomization, which reduces satellite of powder. We
supply 4 main categories of PTA powder: Nickel-based alloy powder, Iron-based
alloy powder, Cobalt-based alloy powder and Mixed Powder.
Nickel Based Alloy Powder possesses high
temperature resistance and wear resistance, it is the most popular alloy powder
applied by PTA welding both domestically and internationally. Coating hardness
is within the range of HRC 30-60. It could be applied to various industries
like agriculture, plastic, paper, marine and steel making where wear and
corrosion protection needed. Some examples are plunger, moulds, pump leaf and
screw.
Iron Based Alloy Powder is more widely used
and a more economic choice. With high abrasive resistance, it is more commonly
applied to mining tools, drilling tools and mixers of iron and steel making
industry, coal industry, shaft, oil and energy industry.
Cobalt Based Alloy Powder is recommended
for corrosion and oxidation resistance, with better hot hardness values than
equivalent Nickel based alloy powder. It is widely applied to steel making
industry, coal industry and mining industry.
Mixed powder mainly refers to NiCrBSi
mixing with other hard-phase powder such as cast tungsten carbide and other cemented
alloy powder, which allows the powder better hardness around HRC60 and
excellent abrasion resistance.
Mixed powder is more often used for mining
equipment for oil sands, lignite, oil drilling tools, excavator buckets,
extrusion screws for plastic processing, grain and oil processing, etc.
PTA Powder,Iron Based Alloy Powder,Cobalt Based Alloy Powder,Nickel Based Alloy Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.hvofpowders.com
Microseismic monitoring is the use of geophone arrays placed in wells or on the earth's surface to collect microseismic waves induced by engineering fractures such as fracturing, water injection, thermal flooding, and waste storage, and to process and analyze microseismic signals. , time and intensity of occurrence to guide construction operations and early warning of disaster risks.
For a long time, this technology has been monopolized by foreign oil companies and has become a bottleneck restricting unconventional seismic exploration in China. In order to increase new energy exploration and development capabilities, increase unconventional exploration efforts, and break the bottleneck of exploration techniques in conventional areas, Oriental Geophysical Exploration focuses on unconventional exploration and scientific research forces, perseverance, and tackling difficulties. After years of unremitting efforts, it has conquered the optimization of speed models. Event identification, first-time pickup, on-site real-time positioning and other technical problems, developed a micro-earthquake real-time monitoring software GeoEast-ESP with independent intellectual property rights, to achieve integration of micro-seismic wells and ground monitoring acquisition, processing, interpretation, and unconventional The exploitation of resources and economy has an important guiding role and fills the domestic gap.
Micro-seismic monitoring technology in the collection, innovative micro-seismic source based on the mechanism, signal propagation effects, receiving conditions and other attributes of the micro-seismic event detection distance analysis method; in the processing of innovative VSP-based velocity model optimization technology, P-wave Joint fine-velocity model correction technology, micro-seismic event recognition and pick-up technology based on perforation signals, fusion of P- and S-wave time-difference methods, and micro-seismic positioning technology of multi-scale energy scans; innovation in the interpretation of fracture geometry based on ellipse fitting Descriptive technology, integrated interpretation of multidisciplinary data and microseismic natural fault detection technology.
Up to now, micro-seismic monitoring technology has been applied in a number of oil and gas fields, shale gas and coalbed methane blocks, completed well monitoring of more than 300 wells of nearly 20 users, and ground monitoring and well-site monitoring of more than 10 wells. The microseismic monitoring of more than 3,000 fracturing intervals has been implemented, providing powerful guidance for vertical wells, cluster wells, horizontal wells and other fracturing projects. GeoEast-ESP software has reached the international advanced level and has become the mainstream software for micro-seismic monitoring in China, improving its core competitiveness.
(Original title: Oriental Geophysical Microseismic Monitoring Assists Unconventional Exploration)
China Instrument Network Instrument Research and Development On February 17, the reporter was informed that micro seismic monitoring technology independently developed by PetroChina and Dongfang Geophysical has recently been selected as “China's Top Ten Scientific and Technological Progress in 2016â€, marking an unconventional exploration of Eastern Geophysical Prospects. Add new weapon.