Showing papers on "Bimetal published in 2003"

Starting device for single-phase induction motor

Abstract: When a starting current runs through an auxiliary winding (S), a main PTC (12) and an auxiliary PTC (14) undergo self-heating for an increased electric resistance. When the auxiliary PTC (14) is heated to 140°C, a snap-action bimetal (18) is turned off to stop a current flow to the main PTC (12) and completes the starting of a single-phase induction motor (70). With the bimetal (18) off, a feeble current runs through the auxiliary PTC (14) side only to keep the bimetal (18) off by heat generated by the current.

Thermosensitive operation element

Abstract: PROBLEM TO BE SOLVED: To provide a thermosensitive operation element capable of cutting off a circuit in response to a temperature rise and an excessive current. SOLUTION: A bimetal 8 is installed in a space formed between a fixed electrode 2 and a movable electrode 3 brought into contact with the fixed electrode 2 through a contact 3a formed at one end. When the bimetal 8 is deformed by temperature rise, the movable electrode 3 is pressed up to separate the contact 3a from the fixed electrode 2. When this thermosensitive operation element 1 is installed with the movable electrode 3 and the fixed electrode 2 serially connected to a circuit, the circuit can be cut off when temperature rises. When an excessive current flows through the circuit, the movable electrode 3 generates heat by its electric resistance and the heat is transmitted to the bimetal 8, whereby the movable electrode 3 is separated from the fixed electrode 2 by its contact 3a by deformation of the bimetal 8, so that the excessive current flowing through the circuit is cut off. COPYRIGHT: (C)2005,JPO&NCIPI

Liquid droplet discharging head and actuator

Abstract: PROBLEM TO BE SOLVED: To obtain a novel liquid droplet discharging head which can obtain full droplet discharging characteristics, and to obtain an actuator which can obtain full driving characteristics. SOLUTION: In the liquid droplet discharging head, a vibrating plate which forms a wall face of a pressure chamber 1 is constituted of a thin film bimetal 3 comprising metal thin films 11 and 12. One of the metal thin films 11 and 12 which constitute the thin film bimetal 3 is pattern machined as a heater into a shape corresponding to the pressure chamber 1. The thin film bimetal 3 is bent by a difference of coefficients of thermal expansion because of bimetal different kinds of material. An actuator driving force is generated by a displacement amount of the thin film bimetal 3, whereby liquid droplets are discharged. COPYRIGHT: (C)2004,JPO&NCIPI

Bimetal saw band and hard alloy ultra-low temp. treatment process

Abstract: An ultralow-temp treating process for bimetal saw blade and hard alloy is composed of quenching, tempering, deep-cold treating and tempering steps. It can effectively improve the antiwear nature, andicnrease the impact and fatigue strength and toughness, and elongating service life.

Catalytic Dechlorination of Chlorobenzene in Water by Pd／Fe System

Abstract: Chlorobenzene was dechlorinated by Pd/Fe bimetallic system in water through catalytic reduction. The dechlorination rate increases with increase of bulk loading of Pd due to the increase of both the surface loading of the Pd and the total surface area. For conditions with 0.005% Pd/Fe, 45% dechlorination efficiency was achieved within 5 h. The dechlorinated reaction is believed to take place on the bimetal surface in a pseudo-first-order reaction, with the rate constant being 0.0043 min-1.

Method for mfg of double-metal saw blade

Abstract: The production method of bimetal saw blade for cutting metal includes the following three procedures: 1. heat treatment of saw-tooth material; 2. welding the azotized saw-tooth material on the saw band, adopting instantaneous electric welding process, and the energization time of the weld is not greater 1 second; 3. cutting saw-tooth material on the saw band, adopting laser cutting process and cutting the saw-tooth material into the saw-tooth form. Said invention is characterized by that said invented bimetal saw blade is made up by equidistantly welding several saw-tooth materials on the sawband and cutting them, and after the heat treatment of the saw-tooth material a coating process is added, so that the saw-tooth material can be easily welded on the saw band.

Thermostat for water boiler

Abstract: A thermal control device ( 10 ) for electrically powered appliances, in particular a thermostat to protect against overheating of a hot water boiler. The thermostat having a structure ( 26 ) supporting a first ( 20 ) and second ( 18 ) electric switches disposed in series between an electric power supply and an electric heating element, an extended length first bimetal device ( 14 ) being arranged for thermal at least indirect contact with water being heated, a second bimetal device ( 16 ) disposed inside the first bimetal device and acting to open the second switch if the second bimetal device reaches a second temperature higher than a first temperature due to the failure of the first bimetal device to open the first switch.

Thermally-actuated switch

Abstract: PROBLEM TO BE SOLVED: To provide a thermally-actuated switch which can prevent the rotation of a bimetal piece when applying an ultrasonic welding, assembled with ease. SOLUTION: The thermally-actuated switch comprises a bottomed housing 1, a fixed contact point 3 arranged to the inside of the bottom surface of the housing 1; a bimetal piece 5, to one end side of which, a movable contact point 6, having a reversely turning part 5a which can reversely turn in compliance with the temperature, contacting with and separating from the fixed contact point 3, is fixed; and a fixed contact point 4 arranged inside the bottom surface of the housing 1, to which, the other side of the bimetal piece 5 is superposed and fixed in a shape of cantilever. A restriction member 4d made of metal, which restricts the bimetal piece 5 from touching with the outer peripheral part of itself and rotationally shifting in the direction crossing the direction of the reversal turn of the reversely turning part 5a, is formed to the housing 1. COPYRIGHT: (C)2003,JPO

Complex catalyst contg. two or more than two kinds of bimetal cyanide, prepn. method and application thereof

Abstract: A complexing catalyst contains two or more than two bimetallic cyanides (BMC), organic coordination agent, soluble metallic salt, polyether polyol, and organic siloxane. Its advantages are storage stability, high reaction activity, and high resistance to high reaction temp. up to 210 deg.C, and short inducing time.

Bimetal reforming catalyst and its preparing process

Abstract: A reforming bimetal catalyst for gasoline fraction contains VIII-family metal (0.1-1.0 wt.%), VIIB-family metal (0.1-1.0), phosphorus (0.1-5.0), chlorine (0.6-3.0) and gamma-Al2O3 as carrier (90-99.1). Its advantages are low carbon depositing speed, high stability of activity and high selectivity of arylhydrocarbon.

Dual-function reforming catalyst containing Pt and Sn and its preparing process

Abstract: A reforming bimetal catalyst for naphtha contains alumina as carrier, Pt (0.01-2.0 m%), IVA femily metal (0.01-5.0), P (0.01-10) and haloid element (0.1-10). It has high selectivity to arylhydrocarbon.

Silver tin-oxide zinc-oxide alloy electric contact and its production process

Abstract: The present invention relates to a silver tin oxide zinc oxide alloy electric contact, its composition contains 3.5-10.5% of SnO, 1.5-7% of ZnO and the rest is Ag. Said material also contains 0.1-0.8% of Ni, perfectly, 0.1-0.5%. As Compared with existent electric contact, the necessary other element components are added in the raw material, and an unique production process is adopted, the invented bimetal composte rivet contact with excellent performance can be made, so that it can implement the production of the silver tin oxide zinc oxide alloy wire material. Said invention can meet the requirements of high-power relay for using bimetal composite rivet contact.

Prefabricated molded blank of an annular or hollow cylindrical component used as a housing in a reciprocating piston machine has temperature-dependent layers which are varied and optimized using a bimetal effect

Abstract: Prefabricated molded blank of an annular or hollow cylindrical component has temperature-dependent layers which are varied and optimized using a bimetal effect to minimize thermal drawing during operation of a reciprocating piston machine in the peripheral direction with an annular component and in the axial and peripheral directions with a hollow cylindrical component with respect to their local layer thicknesses. Preferred Features: The local layer thickness of the layers can be varied and optimized with respect to the peripheral profile.

Door locking device

Abstract: A door locking device for an electrical appliance comprises: a support structure 2,5; a locking member 27 movable between a rest position and a working position; and a control device 12,22,25,26 for controlling the movement of the locking member 27. The control member comprises: a metal plate 12 connected to the locking member 27; an electrical heating element 26; a bimetal operating element 25 which is in contact with the heating element 26 and which deforms as a current is passed through the heating element 26 to move the locking member 27 from the rest position to the working position; a bimetal compensating element 22 cooperating with the bimetal operating element 25 and/or with the plate 12 which, upon an increase in ambient temperature, reduces the delay with which the bimetal operating element 25 returns the locking member 27 and the plate 12 to the rest positions; and a screw 23 for adjusting the position of the bimetal operating element 25 in order to calibrate the delay.

Ni–Cu bimetallic colloids prepared in nonaqueous solvents

Abstract: Colloidal dispersions in nonaqueous media were obtained by simultaneous evaporation of Ni and Cu. The metals were cocondensed at 77 K in an organic matrix of 2-methoxyethanol, 2-propanol or acetone. The metallic dispersions were characterized by transmission electron microscopy, electron diffraction and UV–vis spectroscopy. The stability at room temperature was also measured. The stability of the Ni–Cu bimetallic dispersions is less than that of the Ni and Cu dispersions alone. The presence of more than one phase was observed. It is interesting to note that Ni/Cu ratio does not change the stability of the bimetallic dispersions dramatically. The polarity of the solvent should play a very important role in stabilizing the metal particles by solvatation effects. Transmission electron microscopy studies show the size control effect of Cu with small colloidal size in the bimetal. The electron diffraction studies reveal the presence of amorphous bimetallic particles and particles with crystallinity show typical particles formed for more than one phase (NiO, CuO, Cu, Ni and Cu–Ni). Cu and Ni, for example, are amorphous and crystalline particles, respectively. Differential scanning calorimetry and X-ray spectroscopy characterized the bimetallic solids of Ni–Cu/2-methoxyethanol obtained by evaporation of solvent. The differential scanning calorimetry studies of the solids show transition characteristics of crystalline growth; no glass transitions were observed. The X-ray diffractograms show that the crystallites are too small (less than 100 A), giving rise to low intensity and wide peaks.

Equipment and method for casting bimetal roller

Abstract: An apparatus and method for casting bimetal roller is disclosed. Said apparatus is composed of a hollow cylindrical mould consisting of upper and lower units, induction coil wound round the mould, and power supply connected to said induction coil. Said mould has central moulding cavity, casting pipe and inertial gas inlet hole. Its advantages are firm binding between axle and roller body, and high quality.

Liquid phase rolling method for preparing metal composite material

Abstract: A liquid-phase rolling technique for preparing composite metal (bimetal or trimetal) includes such steps as respectively smelting the needed metals, pouring into a vertical two-roller mill with cooling device and three or four baffles for rolling bimetal or trimetal, rolling, forced cooling and annealing. Its advantages are preventing metal interface from oxidization, and fine and firm texture onbonded interface.

Method for manufacturing bimetal-like resin composite material by high-frequency induction heating

Abstract: PROBLEM TO BE SOLVED: To prevent a resin layer from blistering in producing a bimetal-like resin composite material by a baking method. SOLUTION: A resin (8) is applied, directly or via a sintered metal layer, to a continuous metal band (1) and dried or baked by high-frequency induction heating (6). COPYRIGHT: (C)2003,JPO

Bimetallic cladding pipe

Abstract: The present invention relates to the field of metal pipe production technology, and is characterized by that the exterior of general black ion pipe is clad with a layer of anti-corrosion non-ferrous thin layer to form the invented bimetal cladding pipe (called BF pipe for short) and its mechanical production method. Said invented pipe material can be used for making outdoor advertising board, lamp hole, flagpole and anti-prizing door and window.

Precisive shaped bimetal bush bearing lining sleeve with lubricant concaves

Abstract: The utility model relates to a precisive shaped bimetal bush bearing lining sleeve with lubricant concaves. The outer jack is formed by combining a steel element and a thin lining sleeve which is coiled from a lining phosphor bronze band through pressing by interference fit. The adhering area between the inner hole and the inner wall of the steel sleeve reaches 100 percents after extruding the inner hole. The aperture tolerance size is made through fine articulation. The utility model has the advantages that the utility model is greatly convenient for the traditional use mode of customers, and the utility model is increased by 2 to 5 times when compared with the traditional bush bearing; besides, the utility model is not high in production cost. The utility model is widely used in various bimetal bush bearings the inner aperture pf which is more than 3mm. Besides, the utility model is convenient for standardized and lager scale mechanical production. The utility model relates to a precise-shaped bimetal bush bearing lining sleeve with lubricant concaves; the outer sleeve body thereof comprises a steel casting and an inner lining sleeve with a thin wall which is made by the winding and is inside provided with a phosphor bronze tape, the steel casting and the inner lining sleeve with a thin wall combin into the outer sleeve body through interference press in. After an inner hole is extruded, the binding face between the outer circle and the inner wall of the steel jacket can reach to 100%. The tolerance size of the hole diameter is formed by the precisely hinging. The user's traditional usage mode is brought the which is much convenience; compared with a traditional sliding bearing, the sliding bearing having the shape can improves the service life by at least 2-5 times. Simultaneously, the cost isn't high. The utility model can be widely applied to various bimetal bush sliding bearings with at least 3 mm hole diameter and is easy to being produced with standardization and large-scale mechanization.

Oral Selenium supplement agent using bimetallic oxide as carrier, and preparing process and use method thereof

Abstract: An oral Se-supplementing agent using bimetal oxide as carrier is prepared through heating hydrotalcite to 450-550 deg.c to obtain bimetal oxide, implanting SeO4 ions and SeO3 ions in its crystal lattice, drying, grinding or spray drying, and tabletting. Its advantages are high being assimilated rate of Se and no by-effect.

Motor protective device

Abstract: PROBLEM TO BE SOLVED: To provide a motor protective device capable of protecting a three- phase motor from overcurrent without causing high cost and upsizing of a motor stator SOLUTION: A bimetal part 18 of a bimetal type contact opening/closing mechanism part is forked into two branches from the midway Each moving contact 12a and 15a is provided at the distal ends Two fixed contacts 12b and 15b corresponding to each of the moving contacts 12a and 15a are electrically insulated COPYRIGHT: (C)2003,JPO

Hydrogenation catalyst for preparing H2O2 by anthraquinone process and its prepn

Abstract: A catalyst has noble bimetal Pt and Pd as active component, at least one of RE metals La, Ce, Pr and Sm as assistant, and Al2O3 or composite oxide Al2O3-TiO2 containing TiO2 in 80% as carrier and is prepared by using the wet soaking process. The catalyst has high activity and high selectivity as well as relatively high anti-toxicity capacity. The catalyst has hydrogenating efficiency of 9-11 gramH2O2 each liter of working liquid and degraded product less than 0.40 g/KH202 (27.5%).

Rectangular type secondary battery

Abstract: PURPOSE: Provided is a prismatic secondary battery, which can turn off electric current by operating a bimetal mounted between an electrode tap and an electrode terminal when the battery is out of order. CONSTITUTION: The prismatic secondary battery contains: an electrode plate assembly(25) formed by winding a cathode plate, an anode plate, and a separator; a prismatic case(24) in which the electrode plate assembly(25) is inserted; a metallic cap plate(21) sealing the prismatic type case(24); an insulating gasket(22) inserted in a hole formed on the cap plate(21); the electrode terminal(23) inserted in a hollow formed on the gasket(22); the electrode tap(26) connected electrically to the cathode plate or the anode plate; the bimetal(30) of which one end is in contact with the lower part of the electrode terminal(23) inserted in the case(24) and the other side is connected to the electrode tap(26). The bimetal(30) comprises two kinds of metals, wherein the upper metal(30a) has higher thermal expansion rate than the lower metal(30b).

Switch of wafer boling device, e.g. kettle

Abstract: A vapor sensing type switch for electric water heater is composed of a main body with an extended tubular part, a thermosensitive bimetal element on (or near) the end of said tubular part, a cavity behind the bimetal element, a pair of electric countacts, a sliding push rod acting on said electric contacts under the action of bimetal element, and a vapor/air exhaust outlet.

Automatic measurement apparatus of bimetal position of overload release for motor starter

Abstract: The device for sensing the bimetal position, the laser micrometer, the constant current source and the control mechanism are setup on the frame of the automatic measuring equipment. The simulated current is applied to the starter through the constant current source. The device for sensing the bimetal position outputs the position signal of the deformed bimetal to the laser micrometer. The measured data through the control mechanism to carry out the calculation processing are converted to the cutting data of the directional length of the guide board. Thus, the laser cutter carries out cutting.There is the one to one correspondence between the position of the guide board after cutting and the bimetal position deformed caused by heating so as to guarantee the synchronism of the bimetal under heating condition.