Patents for C22C 33 - Making ferrous alloys (11,268)
03/2014
03/26/2014CN103667953A Oceanic mooring chain steel with low environmental crack sensitivity and ultrahigh obdurability and preparation method thereof
03/26/2014CN103667952A Production process of weather-resistant steel
03/26/2014CN103667949A Bismuth-containing alloy steel material for pump case and preparation method thereof
03/26/2014CN103667948A Multiphase steel and preparation method thereof
03/26/2014CN103667946A Tungsten-containing heat-resistant alloy steel lining board material and preparation method thereof
03/26/2014CN103667945A Wear-resistant high-manganese steel liner plate material and preparation method thereof
03/26/2014CN103667944A Pump super-wear-resistant high-hardness alloy steel material and preparation method thereof
03/26/2014CN103667943A Scandium-containing wear-resistant low-carbon steel material for pump impellers and preparation method thereof
03/26/2014CN103667942A Wear-resistant medium-carbon steel material for pump shafts and preparation method thereof
03/26/2014CN103667941A Alloy steel material for rotor of cam rotor pump and preparation method thereof
03/26/2014CN103667940A Alloy steel material of thrust plate for plunger pump and preparation method of alloy steel material
03/26/2014CN103667939A Manganese steel material for ball bearings and preparation method thereof
03/26/2014CN103667938A High alloy semisteel centrifugation composite Raymond mill grinding ring and manufacturing method
03/26/2014CN103667937A Wear-resistant alloy steel material for valve bodies and preparation method thereof
03/26/2014CN103667934A Low-carbon stainless steel material and preparation method thereof
03/26/2014CN103667933A Vanadium-and-titanium-containing ferrum-chromium-cobalt permanent magnet alloy and processing method thereof
03/26/2014CN103667930A Moisture-proof H2S-corrosion-resistant L555QS pipeline tube containing rare earth and production method of pipeline tube
03/26/2014CN103667928A Cold shortness resistant N80 petroleum pipe steel and manufacturing method thereof
03/26/2014CN103667927A High-strength high-carbon steel material for pump bearings and preparation method thereof
03/26/2014CN103667923A High-carbon alloy steel treated by multielement fine grain disappeared metal
03/26/2014CN103667922A Method of producing high-strength HRB400 hot-rolled ribbed bars
03/26/2014CN103667920A Preparation method of Nd-Fe-B rare earth permanent magnetic alloy
03/26/2014CN103667919A Novel rare-earth permanent magnetic alloy
03/26/2014CN103667918A Preparation method for adhesive rare earth permanent magnet alloy
03/26/2014CN103667917A High-temperature-resistant low-carbon steel material and preparation method thereof
03/26/2014CN103667916A High-hardness alloy steel material and preparation method thereof
03/26/2014CN103667915A Thermal mechanical control steel plate having favorable low-temperature flexibility and manufacturing method thereof
03/26/2014CN103667913A Production method for high-yield-strength and high-plasticity TWIP (Twinning Induced Plasticity) steel
03/26/2014CN103667911A Low yield ratio X100 high-grade steel pipeline steel hot-rolled steel plate and manufacturing method thereof
03/26/2014CN103667909A Mobile ocean platform steel with yield ratio not greater than 0.65 and production method thereof
03/26/2014CN103667908A Hot-rolled high-strength sheet steel having tensile strength of 540MPa, and production method thereof
03/26/2014CN103667903A Preparation method of low-carbon low-silicon electrical steel for motor
03/26/2014CN103667901A Preparation method of hot rolled steel for automobile axle housing
03/26/2014CN103667900A Preparation method of high-magnetic-strength electrical steel for automobile motor
03/26/2014CN103667899A Low-temperature-resistant alloy steel material for pump valves and preparation method thereof
03/26/2014CN103667898A Yttrium-containing alloy steel material for valve cores and preparation method thereof
03/26/2014CN103667897A High-boron alloy steel material for pump delivery pipes and preparation method thereof
03/26/2014CN103667896A Tensile wear-resisting alloy steel material for pump valve and preparation method thereof
03/26/2014CN103667893A High-strength anti-delayed fracture steel with yield ratio of no more than 0.5 and production method thereof
03/26/2014CN103667891A Alloy steel material of pump for delivering mixed acid liquid containing chloride radical, and preparation method thereof
03/26/2014CN103667890A Alloy steel material for pump shaft and preparation method thereof
03/26/2014CN103667887A Preparation method of FeCo alloy absorbing material
03/26/2014CN103667886A Sintering-cooling production operation process of high-performance magnetic steel
03/26/2014CN103667885A Pt-containing nanometer twin crystal steel used in medical field and preparing method of Pt-containing nanometer twin crystal steel
03/26/2014CN103667883A Low-density and high-toughness automobile-used steel board and preparation process
03/26/2014CN103667880A High hole expansion steel plate with tensile strength of 440MPa and manufacturing method thereof
03/26/2014CN103667875A Preparation method of low-carbon acid-resistant pipeline steel
03/26/2014CN103667873A Powder metallurgy high-speed steel and preparation method thereof
03/26/2014CN103667872A Permanent magnet and manufacturing method thereof
03/26/2014CN103667869A Surface alloyed cylinder jacket and production method thereof
03/26/2014CN103667868A Composition and method for manufacturing corrosion-resistant water pump over-current piece
03/26/2014CN103667867A High-carbon alloy steel lining board material and preparation method thereof
03/26/2014CN103667866A Special high-chromium grinding ball for mining and secondary modification processing technique thereof
03/26/2014CN103667865A Ultrahigh-wear-resistance high-chromium multi-alloy grinding ball and composite modification processing technique thereof
03/26/2014CN103667864A Multi-element low-melting-point fine grain non-net high-chromium cast iron and processing technology thereof
03/26/2014CN103667863A Alloy steel material for oilfield submersible electric pump guide wheels and preparation method thereof
03/26/2014CN103667862A Tough high-carbon steel material for centrifugal pump blades and preparation method thereof
03/26/2014CN103667860A Fine-grain non-net low-chromium cast iron and processing method thereof
03/26/2014CN103667859A Multi-component low-melting-point fine-grain non-net medium-chromium cast iron and preparation method thereof
03/26/2014CN103667858A Production method of ultralow-temperature spheroidal graphite cast iron
03/26/2014CN103667857A Production process for processing steel ball forging steel by taking scrap steel as raw material
03/26/2014CN103667856A Method for smelting Fe-based nanocrystalline mother alloy by recovering scratch tape
03/26/2014CN103667855A Method for smelting iron-based amorphous master alloy with waste strips
03/26/2014CN103667854A Method for smelting austenitic stainless steel by using stainless steel oxide
03/26/2014CN103667853A Two-step method for smelting titanium-containing austenitic stainless steel
03/26/2014CN103667852A Chrome-silicon content control method of chrome-containing steel ball
03/26/2014CN103667851A Preparation method of particle-reinforced metal matrix composite material
03/26/2014CN103667850A Ceramic steel
03/26/2014CN103667743A Treatment method of laterite-nickel ore
03/26/2014CN103667742A Treatment method of laterite-nickel ore
03/26/2014CN103667586A Preparation method of UNS N07718 high-temperature alloy
03/26/2014CN103658635A Process for forming bonding rare-earth permanent-magnet alloy
03/26/2014CN103658580A Alloy pipe production process
03/26/2014CN103658573A Liquid alloy vacuum melting single-roller melt-spinning method and device
03/26/2014CN102925812B Hot rolling diaphragm spring steel for automobile and production method of hot rolling diaphragm spring
03/26/2014CN102888568B Austenite nickel-saving and heat-resisting steel plate and manufacturing method thereof
03/26/2014CN102747301B High-strength stainless steel cold-rolled sheet strip and manufacturing method thereof
03/26/2014CN102732775B Smelting additive specially used for cast balls and wear-resistant cast iron
03/26/2014CN102717035B Low Si-Mg ratio and low RE-Mg nodularizer
03/26/2014CN102534395B Iron chromium soft magnetic alloy and its preparation method
03/26/2014CN102384264B Cast iron ring carrier used for aluminum piston and manufacturing method thereof
03/26/2014CN102337980B Engine body of air-cooled diesel engine or gasoline engine with detachable cylinder jacket
03/26/2014CN102242315B Oxide metallurgy method for refining structure of wheel steel
03/20/2014WO2014041976A1 Machine component made of ferrous sintered metal
03/20/2014WO2014040792A1 Sinter-pressing part and method for the production thereof
03/19/2014CN103650073A Sintered neodymium magnet and manufacturing method therefor
03/19/2014CN103650072A NdFeB system sintered magnet
03/19/2014CN103647019A Giant magnetostrictive material brewed via light rare earth and preparation technology of giant magnetostrictive material
03/19/2014CN103643179A Method for reducing embrittlement degree of amorphous strip
03/19/2014CN103643175A Alloy steel material for valve core and preparation method thereof
03/19/2014CN103643174A Antimony scandium-containing high-hardness alloy steel material for bearings and preparation method thereof
03/19/2014CN103643173A High temperature corrosion-resistant pump valve alloy steel material and preparation method thereof
03/19/2014CN103643169A Ce-containing exhaust valve head material and preparation method thereof
03/19/2014CN103643168A Exhaust valve head material and preparation method thereof
03/19/2014CN103643166A High temperature-resistant pump case alloy steel material and preparation method thereof
03/19/2014CN103643165A Erbium-containing pump shaft alloy steel material and preparation method thereof
03/19/2014CN103643164A Red-hardness high alloy steel material for pump valves and preparation method thereof
03/19/2014CN103643163A Alloy steel material for cobblestone crusher hammerhead and preparation method thereof
03/19/2014CN103643162A Alloy steel material for hammerhead of pendulum for mine and preparation method thereof
03/19/2014CN103643161A Vanadium-titanium ore rotary hearth furnace, high-temperature wear-resistant blade thereof for feeding and manufacturing method
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