Match Application Number Document Title
1 85101782 Process for increasing the streagth of single-wall tubular components and appar...
For increasing the strength and endurance of inner pressure of single-wall tubular components, heat is applied on outer limited range of the tube and heating is applied longitudinal alon...
2 85101883 Roller assembly of power supplying for continuous wire annealing device
There is voltage between each pair of rollers to heat the wire. On each roller there is a ring made of fan-shaped conductors which are insulated each other. The conductors connect with ...
3 85100141 Anti-stress corrosion sealing alloy
The alloy belongs to the definite expansion alloys of Fe-Ni-Co series and Fe-Ni-Co-Cu series, which are used to seal the ceramic or hard glass. The aim of this invention is to solve the ...
4 85102527 Heat treatment for strengthening and toughening the outer casingring of single ...
Supporting manner is adopted to (fit) the bearing of single seam centripetal ball joint according to international standard. The hardness of the outer casing ring is seriously limited (u...
5 85100352 Low-temp. composite water bath treatment process of steel wise
Low-temp. composite water bath treatment is used in this process. In intermidiate heat treatment process, steel wire is heated to 800-820 deg.C., then immersed into pure boiling water in...
6 85100190 Heat treatment equipment for reforming spring steel wire
This invention concerns a compound strenthening process for steel material. It consists of heating the spring steel wire of carbonsteel or low alloy steel on a continuously operating pro...
7 85100647 Controlled cooling reinforcing bar containing trace amount of titanium
Controlled cooling reinforcing bar containing trace amount of titanium is a nonstressed reinforcing bar used in reinforced concrete members. It contains a trace amount of alloy-element t...
8 85100644 Fast softening process for maraging steel
This invention relates to a process for heating the hot-rolling state maraging steel,of which the original organization is martensite,to the temperature ac1 10-30 deg c followed with air...
9 85100667 Low iron loss high magnetic sensitive cold-rolled orientation silicon steel and...
Based on the content of 4% Si steel, by adjusting the level of Mn,Al,N as well as C in steel, adding MnS and AlN as strong inhibitors, controlling temperature of heating hot-rolled slabs...
10 85100666 Low iron loss cold-rolled orientation silicon steel plate (containing 4 Percent...
Besides adjusting the amount of main components such as C, Mn, and S etc., of a 4% Si steel, ALN is added as an auxiliary inhibitor. By controlling hot-rolling temp., improving heat-trea...
11 85100662 Water hardening spring steel 35 Si Mn B and process for its manufacture
The process of this invention is used primarily for manafacture of plate spring for vehicles and other machinery springs. Through controlling the contents of elements C, Si, Mn and B, th...
12 85100648 Technology for heat treatment of high strength and toughness structural steel
This technology is characterized by first heating the sub-eutectoid steel of original constitution of pearlite and ferrite up to a temperature about 20deg.C-30deg.C above Ac3 and quenchi...
13 85100775 Mn-Si-B spring steel for automobile spring bottom plate
This steel is to manufacture thick spring leaf. The thickuess of the steel leaf may be up to 16 mm if annealed in oil, and 30 mm if water-annealed. Bottom plate spring set of automobile ...
14 85100774 Annular spray cooler
Spray nozzles and nozzle chamber of this equipment form an augle of 14-25 deg. Water coaling pipe connector. Water coding pipe and outlet pipe are connected by unions for convenience to ...
15 85100672 Steel for thick walled hyperpressure containers and its manufacturing technology
This invention concerns the steel for hyperpressure containers, used to make thick walled hyper-pressure containers subject to working pressure of above 1000 ky/cm2. Aiming at the disadv...
16 85102315 Electromotive heating car for heat-treatment
The present invention concerns a method of direct resistance heating of the metal parts and digital display of heating temp. through the resistance temp. coefficient. The equipment is an...
17 85102387 Compound toughening treatment process of the die steel of high carbon, high chr...
This invention concerns the heat treatment process of iron and steel. High temperature deformation heat treatment, and high temperature tempering are used for previous heat treating of t...
18 85101950 High temp. ballshaping and annealing technology of high carbon low alloyed steel
This method is mainly applied to GCr 15 steel. The base material is heated in a medium frequency induction furnace to 800-1000 deg.C. When the carbide is not yet molten and the Austenite...
19 85102185 Process for stabilizing the precision of sizes of metal works through relieving...
The interference force of a certain frequency produced by vibrator is applied to the work pieces to make them vibrate. The magnitude of dynamic stress produced by the interference force ...
20 85102309 Toughening of high-carbon steel
In view of the complicated process and equipment required for various chemical heat-treatment of gears, enormous energy consumption and poor controllability of the process, and the probl...
21 85102032 Fierykang shaped furnace and use thereof
This invention adopts intermitted flame heater and the heating process pertinent to it for treating steel products in order to solve the problems of high consumption of energy, low effic...
22 85102110 Nodular cast iron with austenite and bainite and its mfr. process
Nodular cast iron, which contains Ni 1-2%, Mn 0.3-0.8%, Mo 0.3-0.8%, Cu 1-1.5%, rare earth elements 0.001-0.03%, and Si, Mg, S, P, C, etc. in regular amount, is heated up to austenitic t...
23 85100155 Salt used in salt bath stove for prevention of oxidation decarbonisation
The invention concerns a salt used in heat treatment salt bath stove to protect the workpiece from oxidation decarbonisation. According to priciple of reduction, special effective deoxid...
24 85102192 Process for producing nodular graphite malleable cast iron moulds for glass art...
The casting, i.e., the mould for glass products, is botained by melting the charge of several raw material according to a given chemical composition, treating the melt by adding rare ear...
25 85103190 Salt bath heat treatment process for strengthening the metal surface
The process employs the active salt bath preheating instead of normalaic preheating or medium bathe preheating, employs the active salt bath tempering instead of normal medium salt bath ...
26 85104240 Process and equipment for heat treatment of rolled steel balls for ball grinder...
This invention provides a special set of equipment for heat treatment to be installed in the production line of steel balls for ball mills. By subjecting the rolled steel balls in a hot ...
27 85102651 Process for heat-treatment workpieces and the heat-treatment equipment for the ...
One kind of heat-treating workpieces are put under several conditions of automatic heat-treating equipments. The same heat-treament is required for a lot of workpieces at a time under th...
28 85102501 Preparation and uses of protecting film on metal parts during heat treatment
A self adhesion protecting film which comprises of an adhesive, inorganic salts and an appropriate vehicle is prepared. This film can stand as high as 900 deg.C in oxidizing atmosphere. ...
29 85103532 System for heat treating orankshafts and other workpieces
The system is a cycle chain, on the chain a support is equipped so as to place a rack. The said chain crosses a high-temperature zone and a low-temperature zone, and the chain is like 8 ...
30 85103910 Method for heat treatment of hand-saw blade without cyaniding
This invention makes use of the compound heat treatment technology, first nitriding and then quenching. Cyanide component is not present in the recipe of the salt bath used for quenching...
31 85103296 Catalized methyl alcohol cracking process and device for heat treatment
Methyl alcohol cracking is catalized at 230~310 deg.C in a special designed vaporizing prechamber and a catalyzed cracking furnace. By means of adding different amount of water into the ...
32 85104306 Rolling of base steel sheet to be surfacetreated without producing stretcher st...
A method of rolling a base steel sheet consists of the following steps: the billet with the composition (wt.) of C is less than 0.0070%, Si is less than 0.1%, Mn is less than 0.5%, Al 0....
33 85103825 Technology of MF (middle frequency) induction quenching
The invention discribes a technology which can be operated continuously. The heating temperature is 900 deg.C -10 deg.C and the quenching temperature is 870 deg.C - 10 deg.C. The press...
34 85103847 Explosion hardening technol. for high manganese steel
The stchndogy of explosion hardening for high manganese steel relates to a special technology in machinery manufacturing industries. In conventional technol., the rubber membrance explos...
35 85104854 Rack for gear forging and quenching machine tool
The wheel arms of gear blanks with finishing forging temp. of 920-1030 deg.C are champed by the champing apparatus firstly, air cooled to 820-900deg.C, then water quenched. When the gear...
36 85104791 High speed tool steel and its process of heat treatment
In the invention is disclosed a method of smelting the steel, esp. that containing Al and N, and the technics of heat treatment process. The composition of steel is characterized as, C 0...
37 85104417 Apparatus for soaking steel materials
An apparatus for soaking steel materials including cold and hot steel materials is composed of a soaking furnace for soaking steel materials, a preheating chamber for preheating cold ste...
38 85106278 Cold-rolled steel sheets and a method of manufacturing the same
A cold-rolled steel sheet for deep drawing having an improved bake hardenability, which comprises 0.005 to 0.015% by weight of C, not more than 1.0% by weight of Si, not more than 1.0% by...
39 85106726 Magnetic field heat treatment of steel with medium magnetic field strength
In this invention a pulse magnetic field of 30 cycle-300 kilocycle pulse frequency and 1500-85000 ampere/m is used. This technique will accelerate chemical heat treatment process and sho...
40 85106684 Hot alumimized ferritic malleable cast iron-low temp. graphitization technique
The invention adopts cupola furnace for smelting. Chemical compositions: C 2.5-2.7%, Si 1.6-1.7%, Mn: 1.75 0.05 - 0.25%, P is less than 0.2%, S is less than 0.2%, Cr is less than 0.06%...
41 85105867 Large diameter high strength rolled steel bar and a process for the production ...
A large diameter high strength hot rolled steel bar consisting of a low alloy steel having a carbon content of 0.3 to 0.9% and a metallurgical structure with a interlammelar spacing of 0....
42 85105706 Method for rolling and heat treating small diameter stainless steel rod
A method for rolling and heat treating small diameter stainless steel rod, comprising the following sequence of steps: cooling the rod prior to and during finish rolling to increase its ...
43 85107243 Regeneration of crushing drum
Feature of the present invention is that the worn-out coal-crushing drum is heat-treated and a hardened built-up weld layer is formed on the heat-treated worn-out surface. Since only the...
44 85107682 Long metallic articles quenching process
The invention relates to a process for quenching long metallic articles with a round section. According to this process, the said articles can be passed through a heating chamber and a q...
45 85107723 Thermo-treatment process for diesel engine needle even device
This invention relates to a method, which features that mild nitriding is adopted to abtain sorbitic matrix, and geometry stability considerably improved; on the surface forms an uniform...
46 85107452 Method of manufacturing pipe and drilling rod unit for petroleum and natural ga...
The present invention relates to a method of making tubing and pipes for conduction in the oil and gas industry or for use as drillpipes, wherein such tubing is connected at both ends wit...
47 85107920 Low-carbon steel scissors and its heat-treating technology
In this invention, the raw materials of the scissors choose low-carbon steel and are formed by a single punching. Then the reasonable surface-ruggedizing technology with chemical heat tr...
48 85108620 Cold rolled steel suitable for enamel coating and method for making
A cold rolled steel sheet suitable for enamel coating is provided which consists essentially of, on a weight basis, C: up to 0.005%, P: up to 0.02%, S: up to 0.03%, N: 0.005% to 0.012%, T...
49 85109155 Multiple strengthening technique for bearing steel workpiece
The grain of the workpiece is fined by pretreatment. And the further treatment of ion carburizing and nitrizing prepares the composition conditions for strengthening its surface. Then th...
50 85107934 Process for heat treatment of metallic pieces by continous furnace and apparatu...
The invention is a process for heat-treating metallic workpieces, using a straight-flow or continuous pusher-type furnace with at least two treatment chambers having doors. Workpieces ent...
51 85109476 Technology for forging and rolling steel ball of high wear resistence and low m...
This invention can be applied to manufacturing steel ball used in ball mills for raw materials grinding in thermal power plant, coal and mining industry, smelting works and cement plant....
52 85109422 Continuoue annealing furnace for metallic strip
A continuous annealing furnace for a metallic strip, wherein each of a direct firing type non-oxidizing furnace and a forced convection type preheating zone is vertically disposed, with a...
53 85109465 Annealing furnace
The technology uses the enthalpy of heating work-pieces to raise the efficiency of heat utilization of an annealing furnace. It is characterized by that the work-pieces are moved in opps...
54 85109735 Process and apparatus for heat treatment of rail
A method of heat-treating a rail for obtaining a variety of strength levels from medium value to high value. The method has the steps of: preparing a steel rail maintained at a high tempe...
55 86100252 Semi-ring shape inductor used in large shaft neck surface quenching
The characteristics of said invented device are proper consideration of the effective area of boundary effect during its design and determination of the effective arc length of arched co...
56 86100009 Furnace load/unload equipment for long billet and tube
The loading/unload unit comprises a rotating drum which is located in front of the feed opening of the furnace and mounted to a horizontal shaft. The drum rotates between the tube receiv...
57 86100097 Laser heat treatment process for high-speed diesel engine cylinder hole
The purpose of the present invention is to remove dry cylinder sleeve. A kilowatt level CO2 laser beam is used to make unequal pitch scanning on the inner wall of cylinder hole. Its trea...
58 86101198 Aq. solution quenching medium for high-speed steel
This invention is one kind of aq. solution quenching medium containing lignin sodium sulfonate 22-26%, sodium chloride greater than 0.8%, potassium chloride greater than 0.8%, sodium hyd...
59 86100766 Method for producing nontoxic quenching agent
It uses the oxane as the main raw material to synthetize nontoxic quenching agent. The whole technological process includes deeply refining the raw material and selecting appropriate pol...
60 86100209 Method for lessoning internal stress of steel rail straightened by rolling
The present invention relates to a process for reducing internal stresses of roller straightened rails. After the straightening operation the rail web portion is heated for a short time t...
61 86102191 Method of mfg. formable as-rolled thin steel sheets
A method of manufacturing formable as-rolled thin steel sheets is disclosed, which comprises rolling a low carbon steel to a given thickness without cold rolling and recrytallization anne...
62 86102258 Production of formable thin sheet excellent in ridging resistance
A process for producing a formable thin steel sheet excellent in ridging resistance. Said process comprises finishing a low carbon steel at a strain rate of not less than 300 (s-1) in a t...
63 86101334 Heat treatment of steel in fluidised beds
In the heat treatment of steel wires (W) in a patenting operation, the wires from an austenitizing furnace (1) are first quenched in a fluidized bed (Q). This bed (Q) is fluidized by hot ...
64 86101552 Cyclic annealing technique for making low manganese dual-phase steel
This invention relates to a new cyclic annealing technique for making high strength and good mouldability dual-phase steel. The dual-phase steel chemical composition is characterised by ...
65 86101419 Induction heating method and apparatus
In the induction heating of thin (e.g. 0.5 to 3 mm diameter) steel wires (W) in continuous heating processes, relatively low field strengths of e.g. up to 20,000 Am-1 are employed but are...
66 86102037 Equipment for heating steel billet to the temperature of hot-forming
In such a plant with a preheating furnace (1) and, combined therewith, a heating furnace (2), there is provided between the entrance side of the heating furnace (2) and the exit side of t...
67 86100540 Method for preparing nitrogen group protecting atmosphere by direct reaction
The invention refers to the method for preparing nitrogen group protecting and heating atmosphere for heat treatment of metal and alloy. According to the invention, neither the precise m...
68 86103669 Manufacture method for improving performances of hot-rolled silicon steel sheets
This invention has published a new technology for cooling treatment of hot-rolled silicon steel sheets just rolled. Before the sheets just rolled are cooled to 750-660 deg.C, they are t...
69 86103498 Furnace for the heat treatment of work pieces
A helical conveyor system comprising two groups of bar-shaped support elements are attached to two mounting means in the heat treatment chamber of a furnace. The mounting means and the as...
70 86103933 Cool-controlling treatment and cooling device of hot-rolled steel tube
This invention relates to a cool-controlling treatment process and cooling device of hot-rolled steel tube. The cooling device consists of several groups of rotary roller bed which made ...
71 86103917 Heat treatment for increasing fatigue strength of 18Cr 2Ni 4WA steel crankshaft
This invention concerns a new heat treatment process to increase the fatigue strength for 18 Cr2Ni4WA steel crankshaft. According to this new heat treatment process, when the heat treatm...
72 86104697 Annealing-oxidating method for high strength bolts
In this invention a nitrogen-based atmosphere containing hydrogen and water vapour is utilized to treat the parts in a sealed annealing furnace, based on a Fe-H2_H2O equilibrium diagram....
73 86104361 Quenching method
A method of quenching which comprises the steps of (a) immersing a metal heated to an elevated temperature in a quenchant composition comprising an aqueous-solution of a sufficiently hydr...
74 86104210 Multi-chamber heat exchanging annealing energy-saving furnace
This invention provides a simple and easy annealing process to utilize reheat for saving energy. A multiple-chamber heat exchanging annealing energy saving furnace is used to implement t...
75 86104946 Protective heating method used for circulating purification outside industrial ...
This invention provide a protective gheating method of outside circulating purification for industrial electric-furnace. By this method,the gases within the electric furnace are exhauste...
76 86104349 Technology of surface hardening treatment by laser and equipment thereof
The essential characteristics of technology of surface hardening treatment by laser and the equipment are as follows: long cylindrical workpiece is placed on the laser device which can p...
77 86104502 Steel strip continuous treatment production line with open fire furnace
This invention relates to a continuously treating line for a steel band, having a heating furnace by directly flaming. For heating the steel band with causing reduction, the heating furna...
78 86105994 Continuous annealing method for deep drawable extra-low carbon steel
A method and an apparatus for continuously annealing extra-low carbon steels are disclosed. The apparatus for practising the method comprises a heating zone, a temperature regulating zone...
79 86104863 V Ti nodular cast iron with biphase structure of ferrite and bainite
This invention provides a new type of nodular cast iron with vanadium, titanium and rhenium. The ferrite is obtained first through annealing, then biphase structure of ferrite and bainit...
80 86106929 Technology of high pressure relaxation treatment for helical compression spring...
A new technology of high pressure relaxation treatment for helical compression springs by means of electric pulse. The compression springs made of various diameters of wires are heated a...
81 86107204 High-frequency isothermic quenching of ductile iron
The present invention provides a new method for heat treatment of ductile iron and the corresponding material. The ductile iron is obtained by means of high-frequency heating and isothe...
82 86106729 Process for heat treatment of malleable cast iron
This invention is applicable to ferrite and pearlite malleable cast iron. The improvement is that when a workpiece is heated from normal temp. to 920-980 deg.C, the existing temp. rise b...
83 86108867 Full-sealing device for feed end of atmospheric control bottom-vibrating furnace
The full-sealing device basically consists of a water tank, a bottom case, a furnace bottom plate vibration damper, a power transmission mechanism for furnace bottom plate, a feed chambe...
84 86106415 Making-up method of heating salt bath for quenching hand saw blade
the present invention provides a prescription of heating salt bath for quenching hand saw blade and its making-up method. Technically the said invention is characterized in the use of de...
85 87100257 Steel sheets for painting and method of producing the same
A painting steel sheet having an improved distinctness of image after painting has such a surface roughness profile that a center-line average roughness is within a range of 0.3-3.0 mu m ...
86 86108728 Continuous electric baking machine for daylight lamp
This roaster is for roasting low voltage fluorescent lamps. Its characteristics are: 1) the main roasting oven's electric heating body is big board-shaped resistors instead of the normal...
87 87100594 Method and apparatus for cooling metal strip
A laminar flow cooling system employs a laminar flow nozzle comprising a pair of plate members defining slit through which cooling water flows to form a cooling water screen. One of the p...
88 87101993 Catalytic annealing process and its catalyst for malleable cast iron
This invention concerns a fast annealing process under a catalytic atmosphere applicable to malleable cast iron and the preparation of the related catalyst. The catalyst used here is an ...
89 87101512 Microdeformational integral quenching technology and apparatus for thin-wall pa...
The heat treatment apparatus of the present invention has an quenching through with an annular partition board and uses water saturated oil as quenching liquid. The use of said quenching...
90 87102389 Thermomechanical annealing technology for martensite steel sections
This invention is characterized by annealing treatment in two steps. The first step utilizes residual heat after hot-work to hold the temperature at any level between phase transition t...
91 87102421 Steel sheets for painting and method of producing the same
A painting steel sheet having an improved distinctness of image after painting has a waviness curve of section profile satisfying given relationships, and is produced by temper rolling a ...
92 87104467 Process for making vulnerable parts of grain and oil machinery
The present invention belongs to the area of machinery building. It refers a process for making vulnerable parts of grain and oil machinery. It is characterized by processing the product...
93 87104699 Rail plate of walking beam heating furnace
A skid beam for use in a walking beam type heating furnace which has operating temperatures exceeding 1000 DEG C. comprises a hollow skid pipe of heat resistant alloy, skid buttons provid...
94 87104594 Fabrication of low-carbon alloy martensite steel leaf spring
The present invention concerns a method for the fabrication of steel (low-friction material) leaf spring. For implementing said invention, firstly suitable low-carbon (C content 0.19 to ...
95 87105410 Carbon potential regulation in low-temperature methanol catalyst cracking
The carbon potential regulation in low-temperature methanol catalytic cracking belongs to the field of heat treatment technology for the modification of iron metal or alloy. Different am...
96 87105296 Method of thermomechanical treatment for a sort of high-speed steel cutter
This invention relates to a new method which merges two separated work process of heat roll and quenching into direct quenching after heat roll in metallurgical plants and tool manufactu...
97 87106396 Quenching method and device for steel wire with copper-cooling instead of lead ...
Cooling medium is copper, not lead, therefore it enable the heating temp. of steel wire to fall form 900-950 in quenching with lead bath to 800-830 deg.C. After cooling and completing tr...
98 87105858 Disk spring material and its manufacturing process
A kind of new bainite steel used for making power semi-conductor devices and high-quality disk springs for other uses, is characterized by adopting the new air-cooled autohardening baini...
99 87105737 Process for rapid quenching in a fluidized bed
A process enabling rapid quenching of articles in a fluidized bed wherein a bed of defined particle type and size is fluidized at a defined flowrate with a high conductivity gas.
100 87107076 Water bath controlled cooling normalization technique for spheroidal graphite c...
Said water bath controlled cooling normalization technique for spheroidal-graphite cast iron with casting heat is based on high-temp. shakeout after the casting process of iron castings,...
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