7732 results about "Steel belt" patented technology

In most cases, a hot, corrosive atmosphere is created in, for example, a semiconductor wafer processing chamber. When an arm including belts, such as steel belts, is moved into such a semiconductor wafer processing chamber, the belts are exposed to the hot, corrosive atmosphere. Belts, such as steel belts, have limited heat resistance and corrosion resistance and the hot, corrosive atmosphere in the processing chamber shortens the life of the belts. A carrying device of the present invention has a frog leg type arm (3) and a wafer holder (4) connected to the frog leg type arm (3). The wafer holder (4) is pivotally connected to front end parts of a first front arm (8A) and a second front arm (8B) by coaxial joints (10). The wafer holder (4) is linked to the first front arm (8A) and the second front arm (8B) by a posture maintaining linkage (5) including two antiparallel linkages capable of controlling the turning of the wafer holder (4) relative to the first and the second front arms (8A, 8B).

A tire assembly with integrated power generation features includes one or more piezoelectric devices configured to generate electric charge therein upon being subjected to mechanical strains associated with flexure of tire or wheel components. The piezoelectric device may be incorporated in a variety of tire structures and in many different locations. In pneumatic tire structures, the piezoelectric device and related electronics may be embedded in crown or sidewall locations among such selected components as the exterior tread portion, first and second steel belts of a belt package, carcass, cap ply portion, inner liner, zone base, etc. The piezoelectric device with optional rubber casing may also be attached to such locations as the inner liner and tire exterior. Piezoelectric devices may also be integrated with a tire and safety support combination that is configured to operate in an extended mobility mode when the tire structure loses air pressure. Piezoelectric devices may alternatively be integrated with a non-pneumatic structurally supported tire such as one including a reinforced annular band, a plurality of web spokes extending transversely across and radially inward from the annular band, a mounting band at the inner end of the web spokes and a tread portion disposed on the annular band.

The invention provides a high-carbon high-chromium high-niobium cast iron self-protection flux-cored wire. The flux-cored wire has a steel belt as an outer skin. The flux core comprises the following components in weight percentage: 10 to 30 percent of ferroniobium, 20 to 30 percent of high carbon ferrochrome, 0.1 to 3 percent of V, 0.2 to 3 percent of W, 0.6 to 0.8 percent of ferromanganese, 0.2 to 0.8 percent of 75 ferrosilicon, 20 to 30 percent of chromium carbide, 5 to 12 percent of graphite, 1 to 10 percent of aluminum-magnesium alloy, 1 to 5 percent of silicon carbide and 1 to 3 percent of ferroboron; and the percentage of a counter weight is between 46 and 54 percent. The high-carbon high-chromium high-niobium cast iron self-protection flux-cored wire has the advantages of high hardness, good wear resistance, good oxidation resistance and strong shock resistance, and is widely applied to grinding rolls and grinding disks of coal grinding machines in thermal power plants and cement plants, material charging equipment in blast furnaces(material charging slots, receiving cones, material storage areas and sieve plates), slag vertical mills, hammer heads and rollers of crushers and sintering equipment workpieces in steel plants.

The present invention is high magnetic induction and high grade non-orientation electrical steel and its making process. The high magnetic induction and high grade non-orientation electrical steel consists of C not more than 0.0050 wt%, N not more than 0.0030 wt%, Si 1.50-2.50 wt%, Al 0.80-1.30 wt%, Mn 0.20-0.50 wt%, P not more than 0.030 wt%, S not more than 0.005 wt%, Sb 0.03-0.10 wt% or Sn 0.05- 0.12 wt%, and B 0.0005-0.0040 wt%, except Fe and inevitable impurities. Its making process includes initial rolling and high temperature winding to obtain ideal hot rolled steel belt structure; cold rolling to provide the energy for crystal grain growth in re-crystallizing annealing, and re-crystallizing annealing in controlled temperature to obtain ideal crystal grain structure. It has excellent surface quality, high magnetic induction and low iron loss, and is suitable for use in high efficiency motor iron core.

A process for manufacturing carbon-steel strip having a thickness of less than or equal to 10 mm directly from liquid steel, by casting said liquid steel between the lateral surfaces, made of copper or copper alloy, of two internally cooled rotating horizontal rolls.

An apparatus for forming the stainless steel band used for the composite steel-aluminum conductor rail is composed of decoiler, guiding-leveling machine, shearing-butt welding machine, servo feeder, punch machine, rolling set and sizing-cutting off machine.

The invention discloses a suspended line walking robot which comprises a walking part and a suspending cabin, wherein the walking part consists of two trunks and three driving wheel claws; the two trunks form double parallelogram structures; the three driving wheel claws are guaranteed to face toward the same direction; five motors on the trunks drive the trunks to longitudinally swing, transversely swing and stretch to ensure that each obstacle detouring driving wheel can realize three-freedom-degree translational upper and lower lines; each driving wheel claw comprises a driving wheel and a clamping device, and the motors drive the driving wheels to ensure that the robot moves on the line; each clamping device comprising a motor, a ball screw pair, a spring, a clamping wheel, and the like guarantees that enough friction force is maintained between the driving wheels and the lines; the suspending cabin and the walking part are connected through two steel belts; and two motors on the suspending cabin adjust own gravity center position relative to the trunks through a steel belt so as to guarantee the flexibility of the mechanism while crossing an obstacle. The invention guarantees that the line walking robot can cross various line obstacles including corner line towers, can climb a diagonal tensile line larger than 60 degrees, has high safety factor and can replace man power to realize autonomous line walking.

The invention provides a high hardness ferrite stainless steel wearable flux-cored wire, which takes a low carbon steel H08A cold rolling thin steel strip as an external wrapper; furthermore, the wrapper is internally provided with a powder core which is composed of graphite, metal and alloy powder; the weight percentages of all ingredients of the powder core are 50-75% of high carbon ferrochrome, 10-16% of ferrovanadium, 6-10% of ferrotitanium, 2-10% of tungsten carbide, 2-3% of nickel powder, 1.5-2.5% of silver graphite, 1-3.5% of boron carbide, 1-2% of aluminium magnesium powder, 0-10% of metallic chromium, and the residual quantity of reduced iron powder; the filling proportion of the powder core is 46-50%; the invention adopts the technical proposal that high-content ferrovanadium and adequate alloy powders such as tungsten carbide and boron carbide, etc. are added into the flux-cored wire, changes the microstructure of the existing ferrite stainless steel flux-cored wire surfacing alloy, overcomes the shortages of poor wearability and ductility, and can be applied to submerged arc bead weld manufacture or repair of the parts which has high requirement of abrasion and the corrosion resistance of the wearable grain.

The invention discloses a steel plate for stamping and quenching and a manufacturing method thereof. The steel plate comprises the following chemical components in percentage by mass: 0.14 to 0.28 percent of C, less than 0.40 percent of Si, 0.4 to 2.0 percent of Mn, less than or equal to 0.010 percent of P, less than or equal to 0.004 percent of S, 0.016 to 0.040 percent of Al, 0.15 to 0.8 percent of Cr, 0.015 to 0.12 percent of Ti, 0.001 to 0.005 percent of B, less than or equal to 0.005 percent of N, and the balance of Fe and unavoidable impurities. The manufacturing method comprises the following steps of: heating a blank to 1,150 to 1,250 DEG C, preserving heat for 2.5 to 4 hours and performing rough rolling, and then performing finish rolling under multichannel pressure and at the final rolling temperature of between 830 and 950 DEG C, performing laminar cooling, and cooling to the rolling temperature at the cooling speed of more than 10 DEG C/s and the rolling temperature of between 600 and 680 DEG C. The cold-rolled steel plate is obtained by the following steps of: performing cold rolling on a hot rolled steel strip, annealing through a pure hydrogen gas cover furnace, and oiling and packaging. The annealing temperature is 550 to 650 DEG C and the heat preserving time is 3 to 5 hours. The steel has a simple component design and high hardenability. The depth of a hardening layer of more than HRC45 is 10 to 16mm. The steel plate consists of ferrite and pearlite. After thermal stamping and quenching, an all-martensite structure can be obtained. The tensile strength is above 1,300N/mm<2>.

The invention relates to a heat treatment method of a steel strip for packaging, comprising the following steps: a) the steel trip is heated to the austenitizing temperature; b) isothermal quenching is carried out in molten lead; c) the lead is scraped off in a carbon tower; and d) the strip is cooled by water. The heat treatment method is characterized in that the temperature range of the isothermal quenching in the step b) is 355-365 DEG C and the isothermal quenching time is 21-28s. The invention further discloses a steel strip for packaging obtained by the heat treatment method. The components of the steel strip (by weight percentages) are as follows: 0.29-0.35% of C, 0.15-0.35% of Si, 1.20-1.55% of Mn, not more than 0.030% of P, not more than 0.030% of S and Fe. The heat treatment method solves the problems that tensile strength of the existing steel strips for packaging can not exceed 1250MPa, the elongation after fracture is less than 6%, and the two-phase region quenching profile of a sheet is poor.

A method for making structural automotive components and the like provides a strip of high strength steel having a selected thickness. A predetermined thickness of a metal coating, such as nickel, is applied to the opposite faces of the steel strip. The coated steel strip is cut to form a blank. The blank is heated in a generally open atmosphere to a temperature in the range of 800° C. to 1000° C. within less than ten minutes, thereby diffusing at least a portion of the metal coating a predetermined distance into the faces of the steel strip portion of the blank to alleviate scale formation, and simultaneously raise the temperature of the blank for hot forming the same. The heated blank is hot formed in a pressing tool, and cooled therein to heat treat the formed component through microstructure phase change, without substantial scale formation, such that the component need not be descaled prior to post-form processing and/or assembly in a vehicle.

The invention discloses a production method of an emulsified explosive, which comprises the following steps that: water phase and oil phase are prepared, and then water phase solution is added into oil phase solution to be emulsified by an emulsifier to prepare a latex matrix, and simultaneously a cooling steel strip controls the temperature of the latex matrix to be 90 to 105DEG C; and the matrix is cooled, the cooled latex matrix is added into a sensitizing machine, and then one or two of perlite and chemical blowing agent is added in for sensitization; and then the explosive is charged, and finally the loaded explosive is packaged to prepare the emulsified explosive. The production method of the emulsified explosive has the advantages of reducing the production cost, having no waste explosive, waste material, waste gas, waste water and dust in production, realizing the free switching of a plurality of sensitization methods, such as physical sensitization, chemical sensitization and physical and chemical composite sensitization, so as to meet the needs of different consumers; perlite is adopted for physical sensitization, and can improve the explosion performance and the storage performance; and the production method of the emulsified explosive can adapt to the requirements of small-diameter explosive charging and full-automatic packaging automatic calandria.

The continuous steel belt punching production line incldues steel belt unwinding machine, straightening machine, material storage in the back of the straightening machine, numerically controlled feeding mechanism connected to the material storage, pressing machine, material thrower, laser ranger, two regulating trays in the tail and the feeding end of the numerically controlled feeding mechanism separately and electric controller unit. By means of the PLC program controller in the electric controller unit, the production line can punch continuously and automatically in high production efficiency and high product precision.

The invention discloses a zinc-plated hot-formed steel plate or steel strip with excellent cold bending performance and a manufacturing method thereof. The zinc-plated hot-formed steel plate or steelstrip comprises a base plate with a surface decarburization layer thickness of 20 [mu]m or below and a zinc coating with an adhesion amount of 10-100 g/m<2> on the base plate. The constituent weight percentage of the base plate is C: 0.1-0.8%, Si: 0.05-2.0%, Mn: 0.5-3.0%, P: <=0.1%, S: <=0.05%, Al: <=0.1%, N: <=0.01%, and the balance Fe and unavoidable impurities. The average size of original austenite grains of the base plate is 15 [mu]m or below. The hot-formed steel plate or steel strip has a continuous and complete coating, no cracks extending to the base plate and excellent cold bending performance on the basis of meeting the conditions that the tensile strength of the base plate after hot-forming is 1500 MPa and the elongation after breaking is 5%.

The present invention provides a three-section cooling process by laminar flow for hot-rolled steel strip. Said process adopts the computer laminar flow cooling control, and is characterized by that the steel strip can be divided into three sections for cooling, first section is head portion section whose length is 30 m, second section is intermediate section of the steel strip, and third section is the tail portion section whose length is 20 m, and the cooling temperatures of said three sections are respectively controlled in that its intermediate section temp. is equal to the objective coiling temp., its head portion section temp. is 20-50 deg.C higher than that of objective coiling section, and its tail portion section temp. is 20-40 deg.C higher than objective coiling temp. Said invention can improve the performance uniformity of steel strip.

The invention relates to a vapour generator for the deposition of a metal coating onto a substrate (7), preferably a steel strip, that comprises a vacuum chamber (6) in the form of a housing including a vapour deposition head or ejector (3) in tight communication via a supply duct (4) with at least one crucible (1) containing the coating metal in a liquid form and located outside the vacuum chamber (6), characterised in that the ejector (3) includes a longitudinal slot for the vapour outlet acting as a sonic throat and extending on the entire width of the substrate (7), a filtration medium or a charge loss member (3A) made of a sintered material being provided in the ejector immediately before said slot on the vapour path in order to equalise the flow speed of the vapour exiting the ejector (3) through the sonic throat.

The invention relates to a superfast heat treatment method of high-speed steel. The problems that high-strength steel is low in heat treatment efficiency, wastes energy and pollutes the environment are solved. According to the method, a heating device is adopted to heat the high-strength steel to the peak temperature Tp from the room temperature within 30 s, heat preservation is carried out for 5to 10 s, a cooling device is used for cooling the high-strength steel to the room temperature within 5 to 10 s, and the whole process is finished within 60 s; the high-strength steel is a steel wire or steel strip with the carton content ranging from 0.16 to 0.55% and the diameter or thickness being 5 mm or below; Tp exceeds the austenite transformation temperature Ac3 by more than 50 DEG C, Tp isequal to 1000 to 1200 DEG C, the maximum heating speed exceeds 400 DEG C/s, the maximum cooling speed exceeds 3000 DEG C/s, and 50cm/min continuous work is achieved. The method is novel and unique, scientific and reasonable, easy to operate, convenient to use, high in work efficiency, energy-saving, environment-friendly and capable of being widely applied to heat treatment strengthening of thin-specification steel strips and small-specification wire rods, and the method is creation of the high-strength steel heat treatment.

The present invention includes bainitic steel doctor blades, bainitic steel coating blades, bainitic steel creping blades and bainitic steel rule die knives used in gravure printing, flexographic printing, paper making, die cutting of materials including paper, plastic, foam, leather, etc. Other uses include printing processes such as pad printing and electrostatic printing. The invention also includes an improved method for producing bainitic steel strip. The present invention is accomplished by using bainitic steel components that exhibit superior straightness and wear properties and are bendable around small radii. The process of the present invention comprises the steps of annealing a carbon steel resulting in a microstructure of the steel having a dispersion of carbides in a ferritic matrix; cold rolling the annealed steel; cleaning the cold rolled steel to remove oil and dirt; bridle braking the cleaned steel to increase strip tension; austenitizing the steel; submersing the austenitized steel into a quenchant; removing excess quenchant; and isothermally transforming the austenitized steel into bainite. The present process of the invention also includes the use of turn rolls that are housed in an assembly containing salt and/or tin.

A blank cut from a strip of hardenable hot-formed steel is heated in a furnace to a temperature which is smaller than an Ac₃ transformation point in an iron carbon diagram. A first region of the blank is then heated in a conductive heating station to a temperature above the Ac₃ transformation point and subsequently hardened in a hot forming and hardening tool to produce a steel part with at least two microstructured regions of different ductility.

The invention discloses a method for producing a hot rolled steel band used for an automotive frame, comprising the following steps: the pretreated liquid iron is smelt conventionally in a top and bottom combined-blowing revolving furnace, argon is blown at the bottom of the furnace in the whole process, the contents of carbon, phosphorus, silicon and manganese at the terminal of the liquid iron are controlled; the liquid iron discharged from the furnace is refined by an LF furnace, argon is blown to the liquid iron and is stirred and decarbolized at the same time of blowing the argon at the bottom of the LF furnace in the whole process, the liquid iron is subjected to microalloying by adding vanadium, titanium, niobium alloy or niobium and titanium alloy, the content of the microalloy in the liquid iron is controlled to between 0.15 and 0.20 percent, the refined liquid iron is continuously cast into a casting blank through a CSP sheet billet conticaster, the casting blank is soaked in a roller-hearth type soaking furnace and is rolled initially through a vertical miller as well as is sent to a finishing mill set to be rolled, the rolling force of each stander and the finishing temperature of the steel band are controlled, and the hot rolled steel band is cooled through a laminar flow and is cut by a pair of flying shears as well as is wound into a steel coil through a recoiling machine. The produced steel band in 510 L and 590 L or 610 L used for the automotive frame has excellent comprehensive mechanical property, and technique processing and welding performances, can be taken as the automotive frames of a light truck, a medium truck and a heavy truck as well as an agricultural automobile and has remarkable benefits.