97 results about "Babbitt" patented technology

The invention discloses a high-plasticity tin-based Babbitt alloy and relates to a tin-based Babbitt alloy. In the invention, the problems of low high-temperature strength and low plasticity of the conventional medium / high-plasticity tin-based Babbitt alloys are solved. The high-plasticity tin-based Babbitt alloy comprises the following components in percentage by mass: 0.05 to 1.5 percent of Gd, 6 to 10 percent of Sb, 1 to 6 percent of Cu, 0.5 to 1 percent of Ag and the balance of Sn. In the invention, the addition of Gd into the Babbitt alloy can improve the plasticity of the alloy. Compared with the conventional tin-based Babbitt alloy, under the same test condition, the coefficient of elongation is improved by 10 to 20 percent, the strength at room temperature is improved by 8 to 18 percent, the strength at a high temperature of 200 DEG C is improved by 12 to 20 percent, and the wear resistance is improved by over 35 percent. The high-plasticity tin-based Babbitt alloy can be used as a bearing bush material and also can be drawn into wires which can be used as deposition materials.

The invention relates to the technical field of laser cladding, in particular to a 3D laser cladding additive manufacturing process based on a bearing bush alloy layer. The process comprises the following steps: 1, adjusting 3D laser cladding parameters; 2, pretreating the cladding surface of a base material; 3, presetting a cladding material; 4, preheating; 5, carrying out laser cladding; 6, cutting the outer surface; 7, carrying out post-heat treatment; and 8, polishing the outer surface. According to the laser cladding additive manufacturing process for the bearing bush alloy layer, a traditional bearing bush alloy casting production process is replaced, laser cladding is directly adopted for the bearing bush alloy layer, and tin-based babbitt metal powder is cladded layer by layer to the designed thickness, so that the problems that the traditional bearing bush alloy casting process is complex in procedure, unstable in product quality, high in production cost, high in labor intensity, poor in working environment and the like are solved, and the beneficial effects of simplified procedure, good product quality, stable product quality, low production cost, high automation degree,environmental friendliness, sanitation and the like are achieved.

The invention aims at providing a thrust pad repairing method based on a laser cladding process. The deformation amount in the thrust pad repairing process is effectively controlled, the problems of hole shrinkage and shelling of a babbitt metal layer are thoroughly solved, the design size of a thrust pad is recovered, the use performance of the thrust pad is improved, the service life of the thrust pad is prolonged, and extremely high economical efficiency is achieved. The thrust pad repairing method comprises the following steps: removing an original babbitt metal layer of the thrust pad, preparing the babbitt metal layer on the surface of a steel billet through laser cladding, carrying out ultrasonic flaw detection, milling, carrying out dye penetrant inspection and grinding. According to the method, the thrust pad which fails in service is remanufactured, and the use performance of the thrust pad is recovered and improved through a new additive manufacturing method. Compared with pouring and oxyacetylene welding processes, the manufacturing process of the babbitt metal layer is greatly simplified, the steel billet preheating and tinning processes are omitted, and the quality of the babbitt metal layer, the combination condition of the babbitt metal layer and the steel billet, the deformation amount of the steel billet and the labor environment are effectively improved.

The invention discloses a large-scale Babbitt bearing casting machine and aims to provide casting mechanical equipment in the field of metal casting. The casting machine comprises a base, damping pads, two clamping pinchers, a painting device, and a vibrator, wherein the two clamping pinchers are horizontally arranged oppositely and fixedly connected in a middle groove formed in the base; the painting device is fixedly connected to a foundation; the vibrator is fixedly connected with a plane which is arranged on the base; the amount of the damping pads is six, and the damping pads are all arranged on the bottom face of the base. According to the technical scheme of the large-scale Babbitt bearing casting machine, wind pressure is used as the power, by means of the wiggle, rotation and reciprocating rectilinear movement of painting tools in the painting device, operations such as rust removal, oxide layer removal, degreasing and tin coating can be conducted efficiently; vibration casting is adopted, and the casting quality is improved. By means of the large-scale Babbitt bearing casting machine, casting efficiency can be improved effectively, and the working conditions of workers can be largely improved and labor intensity of the workers can be largely relieved; the casting machine is simple in structure, convenient to repair and low in equipment investment.

The invention discloses a detection method for detecting the bonding strength of babbitt metal and a matrix. The method comprises the following steps of: preparing a matrix with a babbitt metal layerprepared on the surface into a shear sample, stably placing the sample in a clamp, performing firm clamping, placing the clamp with the clamped sample on a tensile testing machine platform, pressing the babbitt metal layer downwards along the direction of a surfacing bonding surface at a speed of 0.1mm / s-0.4mm / s by a pressure head until the babbitt metal layer is stripped from the matrix, and stopping pressing; and recording the maximum load and the sectional area of a fracture during stripping of the babbitt metal layer, and calculating the bonding strength value of the babbitt metal layer according to the formula W=F / S. The method can be used for quantitatively measuring the bonding strength of the babbitt metal and the matrix, overcomes the defects of large error and incapability of quantitative rating in qualitative analysis, can acquire precise and visual bonding strength data, and has the advantages of short analysis period, easy sample processing, simple operation, low detectioncost, precise data, high sensitivity and the like.

A laser additive manufacturing method for a tin-based babbitt alloy component, and the invention belongs to the related field of additive manufacturing. The invention solves the problems of segregation, low forming precision, complicated process, high energy consumption and difficulty in forming products with complicated shapes when the casting method is used to manufacture babbitt alloy products. The invention adopts selective laser melting to prepare babbitt alloy. The babbitt alloy obtained by selective laser melting not only has compact structure, uniform composition and precise size, but also can produce products with complex shapes. High power laser, which promotes good forming of babbitt alloy. The process flow is simple, the energy consumption is low, and products of any shape can be formed, which fills the gap in the additive manufacturing of tin-based babbitt alloy components.

The invention discloses a plain bearing bush insulation structure, a bearing bush and a manufacturing technology of the bearing bush. According to the technical scheme of the bearing bush and the manufacturing technology of the bearing bush, the bearing bush insulation structure with a babbitt metal layer poured is included; a V-shaped groove is further included; or, a fiber glass filament layer of 1 mm to 2 mm is arranged.; or, a teflon layer is arranged on the outer surface of the fiber glass filament layer; or, a primary fiber structure is composed of a plurality of secondary fiber structures, and a plurality of stacked filter base layers are included. The defects that a traditional insulation bearing is isolated from a bearing bush through teflon film pasting to cut off a shaft current path, consequently, an insulation film is quite prone to being damaged in the mounting and maintaining process, the repair technology adopted after damage is quite complex, a dedicated tool is needed, and consequently, maintaining difficulty, equipment scraping and the like are caused are overcome. The plain bearing bush insulation structure, the bearing bush and the manufacturing technology of the bearing bush are suitable for insulation plain bearing bushes adopted in various projects, and especially suitable for insulation of plain bearing bushes of matched large rotary machines in the industries such as mines, electric power, coal mines, metallurgy, traffic, chemical engineering, water conservancy, machine tools and chips.

The invention discloses a Babbitt metal wire and a preparation technology thereof, and relates to the technical field of mechanical materials. The Babbitt metal wire comprises the following raw material ingredients in parts by weight: 7-18% of Sb, 3-8% of Cu, 0.0001-0.005% of Au, 0.0001-0.01% of Ni and the balance of Sn and trace elements including Cr, Mo and W. A raw material ingredient proportion of the Babbitt metal wire is regulated, the trace elements are added, the flexibility and the metallographic structure of the Babbitt metal which is finally smelted can be greatly improved, a situation that the Babbitt metal is free from a fracture phenomenon when the Babbitt metal is pulled to form wires can be guaranteed, and the flexibility and the strength of the Babbitt metal wire are improved.

The invention relates to an oil film bearing lining babbitt metal repairing tool. The oil film bearing lining babbitt metal repairing tool comprises a tool body. A tool back, a straight cutting edge,a first edge part and a second edge part are arranged at the outer end of the tool body. The tool back is opposite to the straight cutting edge. The first edge part is opposite to the second edge part. One end of the first edge part is connected with the tool back, and the other end of the first edge part is connected with the straight cutting edge. One end of the second edge part is connected with the tool back, and the other end of the second edge part is connected with the straight cutting edge. The invention further relates an oil film bearing lining babbitt metal repairing method. The included angle between the tool body and an oil film bearing lining babbitt metal cylinder hook face is controlled to range from 25 degrees to 85 degrees. The straight cutting edge is utilized for cutting the surface of the oil film bearing lining babbitt metal cylinder hook face. The straight cutting edge and the oil film bearing lining babbitt metal cylinder hook face are controlled to move in theform of a concentric hook face or a coaxial spiral hook face. According to the oil film bearing lining babbitt metal repairing tool and method, a fatigue layer on an oil film bearing lining babbitt metal structure can be rapidly repaired.

The invention discloses a large generator set bearing alloy casting and welding matching method. According to the method, casting and welding are combined, the problems of composition segregation, multiple surface defects and the like caused in the large generator set bearing alloy casting process are solved, the defects of large tile blank deformation and low production efficiency caused by welding are overcome, the production efficiency and the product quality of a large generator set bearing alloy can be improved, the defective rate and the repair rate are reduced, and the method is particularly suitable for producing and manufacturing the Babbitt metal on the surface of the thin-wall tile blank with grooves and high precision requirements.

The invention discloses a method for repairing an industrial turbine bearing bush through laser cladding of babbitt metal, and relates to the technical field of laser cladding. The method involves a box body structure, and a temperature measuring structure for detecting the temperature of a workpiece in the welding process is slidably connected into the box body structure. According to the method for repairing the industrial turbine bearing bush through laser cladding of the babbitt metal, the babbitt metal can be machined and formed through a laser cladding technology, the problem of unshelling of the babbitt metal can be thoroughly solved, meanwhile, a babbitt metal coating can be prepared on the surface of the industrial turbine bearing bush through the laser cladding technology, the structure of the babbitt metal coating is uniform, no metallurgical defects occur, metallurgical bonding with a base body is firm and reliable, the forming size is uniform and controllable, the problems existing in an original manual welding process method are completely solved, the whole forming process is automatically completed through a mechanical arm, manual labor is liberated, the operation environment is greatly improved, and it can be guaranteed that the industrial turbine bearing bush cannot be blackened or vaporized in the cladding process.