45 results about "White metal" patented technology

The invention relates to a plain bearing alloy consisting of a tin-based white metal and containing antimony as the primary alloy element and between 1 and 10 % by weight copper. The aim of the invention is to achieve excellent strength characteristics coupled with a high degree of ecofriendliness without impairing the tribological characteristics. To achieve this, the white metal, which except for inevitable impurities is devoid of cadmium, lead, arsenic and chrome, contains between 4 and 30 % by weight antimony as the primary alloy element, at least one element from an element group containing cobalt, manganese, scandium and germanium, in a total concentration relating to the elements from said group that are used, of between 0.2 and 2.6 % by weight, in addition to at least one element from an element group containing magnesium, nickel, zircon and titanium, in a total concentration relating to the elements from said group that are used, of between 0.05 and 1.7 % by weight, the maximum total proportion of antimony and copper being 35 % by weight for an antimony content that corresponds to three times the copper content.

In a bearing constituted by a plural-layer slide member, the plural-layer slide member comprises a resin layer of polytetrafluoroethylene as a slide member and a backing strip to which the resin layer is bonded. A fitting hole having a depth exceeding the thickness of the resin layer is formed from the resin layer side. A temperature measuring metallic member formed of a white metal is fitted in the fitting hole. A temperature sensor is positioned within the temperature measuring metallic member. This bearing permits an accurate detection of its temperature. Further, in an oil cooled screw compressor having a bearing lubricating oil supply pipe, a slide surface of the bearing is covered with polyether ether ketone. Even if foaming occurs in the oil, it is possible to prevent the occurrence of a mechanical trouble such as galling.

The invention is suitable for the technical field of metal surface treatment methods, provides a stainless steel surface treatment method and aims at solving the technical problem of failure in showing stainless steel three-dimensional texture after stainless steel surface treatment in the prior art. The stainless steel surface treatment method comprises the following steps: pretreatment, namely cleaning the surface of a stainless steel substrate; impacting nickel, namely performing impacting electronickelling on the stainless steel substrate to obtain an impact nickel layer; acidic copper electroplating, namely performing acidic copper electroplating treatment on the impact nickel layer and forming a copper coating; pearl nickel electroplating, namely performing pearl nickel electroplating treatment on the surface of the copper coating and obtaining a pearl nickel layer with sand feeling; electrochroming, namely forming a protective chrome layer on the surface layer of the pearl nickel layer; and aftertreatment. The pearl nickel electroplating treatment is adopted to increase the sand feeling of the copper coating and then the surface with the three-dimensional texture can be obtained; and the electrochroming treatment is adopted to form the protective film on the surface of the pearl nickel layer, and therefore, the stainless steel substrate also has silver white metal texture.

In a bearing constituted by a plural-layer slide member, the plural-layer slide member comprises a resin layer of polytetrafluoroethylene as a slide member and a backing strip to which the resin layer is bonded. A fitting hole having a depth exceeding the thickness of the resin layer is formed from the resin layer side. A temperature measuring metallic member formed of a white metal is fitted in the fitting hole. A temperature sensor is positioned within the temperature measuring metallic member. This bearing permits an accurate detection of its temperature. Further, in an oil cooled screw compressor having a bearing lubricating oil supply pipe, a slide surface of the bearing is covered with polyether ether ketone. Even if foaming occurs in the oil, it is possible to prevent the occurrence of a mechanical trouble such as galling.

The invention relates to a sliding bearing (1) comprising a backing layer (2) and a sliding layer (3), wherein the sliding layer (3) in a plane in at least a first region (8) and at least a second region (9) is divided, and wherein the at least one first portion (8) of AISn40Cu and at least one second region (9) consist of a white metal.

The invention discloses a lobe bearing, which comprises a bearing body, white metal pads and white metal pad supporting slide blocks, wherein the white metal pads are poured on the white metal pad supporting slide blocks, and the working face molded line of the bearing is of lobe type or wedge type; the bearing body is of an annular structure, and a plurality of circumferentially distributed radial chutes with bottoms are arranged on the inner wall of the bearing body; each white metal pad supporting slide block poured with the white metal pad is arranged in each corresponding chute and can slide in the chute, and the white metal pad on the slide block faces the center of a circle of the bearing; screw holes and fastening bolts are formed in the back of the slide block, and bolt holes corresponding to the screw holes and the fastening bolts are formed in the bottom of the chute of the bearing body; the fastening bolts penetrate through the bolt holes and are screwed into the screw holes in the back of the slide block, so that the slide block is tightly fixed on the bearing body; an adjusting gasket is arranged at the bottom of the chute. The white metal pad sand the bearing body are of split structures, and are processed by only considering the precision of molded line without considering the dimensional precision of a gap, so that the processing difficulty is reduced; the bearing can be replaced or repaired after partially worn, so that the operating cost is reduced; the bearing has multiple supporting surfaces, so that the stability of rotor operation is improved.

A tin based white metal alloy consisting essentially by weight of approximately 5.0%-9.0% antimony, approximately 3.0%-8.0% copper, approximately 0.1%-0.7% cobalt, and the balance tin.

The present invention decreases invalid light emitting regions, which are generated at both ends of an outer tube and enlarges a valid light emitting region of a phosphor layer, which enlarges the light emitting region of a lighting device. In a cold cathode fluorescent tube, cup-shaped electrodes are provided on the inside of both ends of a glass tube, which has a phosphor layer on the inner surface thereof, wherein each cup-shaped electrode connects to an inner lead, which supplies an electric power. A sputter source is formed on an inner wall surface of the cup-shaped electrode by sintering white metal oxide, whereby the white metal oxide which constitutes a sputter source is sputtered by evaporation, which forms a sputter film on a portion of the opening end of the cup-shaped electrode and inner wall surface of the glass tube.

The invention discloses a tin-based Babbitt alloy material. The alloy material contains 3.0-15.0wt.% of stibium, 2.0-9.0wt.% of copper, 0.001-0.1wt.% of gallium, 0-0.02wt.% of phosphorus, 0.001-0.1wt.% of indium and / or 0.03-0.1wt.% of nickel and the balance of tin and unavoidable impurities. The alloy material disclosed by the invention has relatively high oxidation resistance, favorable wettability and bonding property and finer and smaller grain tissues; and no matter a tinning-pouring method, a thermal spraying method or a surfacing process is adopted for preparing a bearing bush, the formation probability of slag points and holes can be remarkably reduced, the layering and stripping defects can be reduced, and the bonding property can be improved.

The invention discloses a passive film treating agent for die cast aluminium alloy and a treatment method thereof. The passive film treating agent for die cast aluminium alloy comprises the following components in parts by mass: 1 to 20 parts of inorganic acid, 1 to 20 parts of zirconate, 1 to 20 parts of vanadate, 1 to 20 parts of manganate, 1 to 20 parts of calciate and 0.2 to 10 parts of an activating agent. Relative to a traditional phosphorus-containing chromium-free passive film treating agent for die cast aluminium alloy, which causes pollution to the environment, the passive film treating agent for die cast aluminium alloy can form a phosphorus-free chromium-free Zr-Mn-V passive film on the surface of die cast aluminium alloy, the passive film has the advantages that the adhesive force is good, the corrosion resistance is high, and the salt mist resistance and film forming uniformity are good, and besides, the obtained passive film can be guaranteed to have a silver white metal appearance the same as the die cast aluminium alloy.

The invention discloses a bearing white metal casting segregation control device. The bearing white metal casting segregation control device comprises a centrifugal casting machine which is provided with a rotating shaft and a chuck connected with the front end of the rotating shaft, a tile body, a front end cover provided with a pouring hole and connected with the front end of the tile body, a back end cover connected with the back end of the tile body and the front end of the chuck, an adjusting base arranged on the front side of the front end cover and provided with a white metal temperature sensor opposite to the pouring hole, a cooling water nozzle set arranged on the upper side of the periphery of the tile body, an adjustment base provided with a tile body temperature sensor oppositeto the outer side of the periphery of the tile body, a rotating shaft driving and speed adjusting device provided with a servo motor, and a controller electrically connected with the white metal temperature sensor, the tile body temperature sensor, an environmental temperature sensor and the servo motor. The bearing white metal casting segregation control device cannot enable CuSn5 and SnSb compounds with high densities in molten white metal to gather and segregate to the outer side of a lining layer in the centrifugal casting process, and improves the bonding force between the white metal and the tile body and the bearing capacity of a bearing.

The invention relates to a method used for firing high temperature matte brownish red glazed porcelain in a reducing atmosphere. According to the method, in a green body and a glaze material, a common natural mineral material is mainly adopted at a certain ratio; raw materials such as glaze ash, dolomite, and white metal clay are added into the glaze material; one time firing is carried out at 1280 to 1320 DEG C in the reducing atmosphere so as to obtain the brownish red glazed porcelain. The method is capable of avoiding defects in the prior art that the glossiness of the obtained brownish red glazed porcelain is high, colour generation is nonuniform, and the primitive simplicity unique texture of Ming and Qing official ware brownish red glazed porcelain is impossible to achieve, and the method are capable of satisfying consumption requirements of returning to one's original nature of modern people. The raw materials are natural mineral raw materials, so that production cost is reduced greatly, it is beneficial for inheriting and promoting of excellent porcelain producing technology of our country, conditions are provided for improvement of the colour generation quality and stability of conventional porcelain products, and market prospect is promising.

The invention discloses a continuous chlorine leaching method for white alloy. The continuous chlorine leaching method for white alloy comprises the following steps: crushing the white alloy and then sieving to obtain a powder with a size of minus 80 to minus 100 meshes; continuously adding the white alloy powder in a three-compartment leaching kettle, and adding a hydrochloric acid solution with a concentration of 60-80 g / L in the three-compartment leaching kettle; charging chlorine in each compartment of the three-compartment leaching kettle, setting different potentials in the compartments, and adequately carrying out leaching reaction to obtain slurry; continuously discharging the slurry to a leaching intermediate tank, and filtering by a plate-and-frame filter press to obtain leachate and residue; and washing and filtering the residue, and then abandoning the washed residue, and recovering the residue washing solution. The white alloy powder is high in reactivity after being crushed, and capable of increasing a speed of participating in inlet-outlet reaction; chlorine is used as an oxidizing agent in the leaching process, valuable metals such as copper, cobalt and iron in the powder enter the solution in a chloride state by controlling the potentials in the kettle, and the leaching rates of cobalt and copper can achieve more than 99%.

The invention discloses a car trim and a preparation method of a surface coating of the car trim. The trim comprises a plastic substrate, wherein the plastic substrate is transparent to visible light; the back surface of the substrate is provided with a groove; the groove is internally covered with a nano metal coating and a diamond-like coating from interior to exterior; and an outermost layer is provided with induction type visible light sources which are arrayed according to a certain shape. The invention also provides the preparation method of the surface coating of the car trim. The preparation method of the surface coating of the car trim comprises the following steps of (1), carrying out bombardment on a base material by adopting an Ar ion beam; (2), depositing the nano metal coating by adopting direct-current magnetron sputtering; and (3), depositing a hydrogen-containing diamond-like coating by adopting an ion source. Through the above preparation method of the surface coating, on one hand, a plastic material is enabled to have a silvery white metal appearance, and on the other hand, when the light sources on the back surface of the substrate are lit, a luminous pattern can be seen from a frontal surface; the method is green and environment-friendly; and the zero emission of a pollutant to an environment is achieved.