43 results about "Casing wear" patented technology

Disclosed is a hardfacing alloy capable of withstanding service abrasion of the order of silicious earth particles and weldable on industrial products, such as tool joints and stabilizers used in oil and gas well drilling, and other industrial products. The hardfacing alloy has a low coefficient of friction resulting from excellent metal to metal resistance and significant reduction in industrial wear on industrial products, such as casing wear. Other embodiments of the invention include tool joints having the hardbanding alloy welded to the outer cylindrical surface to its box and pin members and to stabilizer ribs on the stabilizer used in earth boring, such as boring for oil and gas, other industrial products, and methods of applying the hardfacing alloy to their surfaces. The hardfacing alloy does not require any post weld treatment, has primary borides in its microstructure, the carbons in the alloy are tied up in the formation of secondary carbides which add to the abrasion resistance, and have a quadratic crystallographic structure and a hardness of about 1725 Hv comparable to the prior art hardness of the chromium carbide primary carbide alloys of the prior art but is substantially less brittle than C—Cr—Fe hardfacing alloys.

Disclosed is a hardfacing alloy capable of withstanding service abrasion of the order of silicious earth particles and weldable on industrial products, such as tool joints and stabilizers used in oil and gas well drilling, and other industrial products. The hardfacing alloy has a low coefficient of friction resulting from excellent metal to metal resistance and significant reduction in industrial wear on industrial products, such as casing wear. Other embodiments of the invention include tool joints having the hardbanding alloy welded to the outer cylindrical surface to its box and pin members and to stabilizer ribs on the stabilizer used in earth boring, such as boring for oil and gas, other industrial products, and methods of applying the hardfacing alloy to their surfaces. The hardfacing alloy does not require any post weld treatment, has primary borides in its microstructure, the carbons in the alloy are tied up in the formation of secondary carbides which add to the abrasion resistance, and have a quadratic crystallographic structure and a hardness of about 1725 Hv comparable to the prior art hardness of the chromium carbide primary carbide alloys of the prior art but is substantially less brittle than C—Cr—Fe hardfacing alloys.

Disclosed is a hardfacing material capable of withstanding abrasion by siliceous formation particles, etc., weldable to industrial products such as drill joints and stabilizers for drilling oil and gas wells, and other industrial products without cracks alloy. The alloy for surface hardening has a low coefficient of friction and high wear resistance after welding without machining, and in the tool joint and stabilizer, the wear resistance of the tool joint and the stabilizer and the resulting casing are obtained Optimal balance between wear and tear. Other embodiments of the invention include welding hardfacing alloys (24) to the outer cylindrical surface (22) of casing and pin components of drill tool joints and welding Tool joints on stabilizing ribs of stabilizers and other industrial products; methods of manufacturing said hardfacing alloys; methods of applying said hardfacing alloys on surfaces, including preheating and post-welding treatment conditions, In order to resist wear and tear.

The invention discloses a self-stabilizing trolley case wear-resistant testing machine, which comprises a device main body, a test cavity is arranged in the rear end of the device main body, and a rotating shaft passes through a bearing at one end of the test cavity and is inlaid on the other end surface of the test cavity In the bearing, the driving motor is installed on the outer wall of the main body of the device, and the output shaft of the driving motor is fixedly connected to one end of the rotating shaft, and two sets of arc-shaped rough rubber are symmetrically pasted on the outer peripheral surface of the end of the test roller close to the other set of test rollers. The bottom of the main body of the device is provided with four symmetrical cushioning bottom columns, and the connection between the cushioning bottom column and the main body of the device is provided with a cushioning telescopic rod. When the invention is in use, the adjusting screw can be used to adjust the gap between the two groups of test rollers. Adjust the spacing of the trolley case, which can be applied to different distances between the pulleys at the bottom of the trolley case; it can simulate different walking environments, so that the bottom of the trolley case can be tested, and the test effect is more accurate; it can keep the device stable and prevent the test results from being affected by uneven ground .

The invention discloses a device for measuring wear of a drill pipe and a casing, which comprises a bearing structure, a drill pipe, a rotating mechanism, a sleeve, and a horizontal force applying mechanism; the bearing structure is used to carry various parts of the device, and one end of the drill Through the sleeve, the rotating mechanism is used to drive the drill pipe to rotate; the two ends of the drill pipe are fixed on the bearing structure through the rotating parts; the sleeve is fixed on the bearing structure through the directional sliding mechanism, which defines the moving path, its sliding direction and The axis of the drill pipe is vertical; the telescopic end of the horizontal force-applying mechanism is in contact with the outer wall of the sleeve, and its telescopic direction is parallel to the sliding direction of the directional sliding mechanism, which is used to compress the sleeve and the drill pipe. The drill pipe of this device is relatively fixed, and the drill string moves and presses the drill pipe. The structure is relatively simple. At the same time, the drill string is guided to move by the directional sliding mechanism, which can ensure the linear contact between the drill pipe and the casing, and uniform force wear everywhere, and the casing The wear part is fixed, which can simulate the actual wear situation.

The invention discloses a high-hardness, wear-resistant and heat-resistant material for cell phone cases. The high-hardness, wear-resistant and heat-resistant material comprises the following raw materials in parts by weight: 80-120 parts of modified ethylene propylene diene monomer, 30-50 parts of styrene-butadiene rubber, 30-50 parts of epoxy resin, 30-50 parts of coumarone resin, 20-50 parts of polycarbonate, 5-15 parts of wollastonite, 2-8 parts of nano calcium carbonate, 1-5 parts of magnesium carbonate, 3-6 parts of trioctyl trimellitate, 4-8 parts of 2,6-di-tert-butyl-4-methylphenol, 2-9 parts of dicumyl peroxide, 3-4 parts of phthalic anhydride, 2-6 parts of an anti-stress-cracking agent, 2-6 parts of a lubricant, 1-5 parts of a flame retardant, 2-6 parts of a foaming agent and 2-5 parts of a toughening agent. The high-hardness, wear-resistant and heat-resistant material for the cell phone cases, disclosed by the invention, is high in hardness and good in wear resistance and heat resistance.