5results about How to "Friendly working environment" patented technology

This utility model discloses a testing device for sprocket shaft assemblies, comprising: a wall platform with a functional groove on its front side wall, a transmission device disposed within the functional groove, a support platform on the lower outer side of the functional groove, two support frames fixedly spaced on the support platform, a sprocket shaft assembly disposed on the support frames, its outer wall closely fitted to the front side wall of the wall platform, the transmission device being drively connected to the sprocket shaft assembly, a connecting frame on the upper outer side of the functional groove, the connecting frame being hinged to an arc-shaped cover, the arc-shaped cover covering the outer side of the sprocket shaft assembly, the arc-shaped cover having two sets of symmetrically arranged upper and lower latches, each detachably inserting an upper and lower latch. During testing, this sprocket shaft assembly testing device simply requires placing the sprocket shaft assembly on the support frame and securing it using the wall platform and the upper and lower latches of the arc-shaped cover, making assembly and disassembly convenient; furthermore, the arc-shaped cover prevents oil leakage from the sprocket shaft assembly from splashing during testing, making it more environmentally friendly.

This application relates to the field of vehicle technology, specifically disclosing a twin-tube shock absorber and a vehicle, including a working cylinder, a piston rod, and an oil reservoir. The oil reservoir is coaxially sleeved on the outer surface of the working cylinder, forming a sealed oil reservoir chamber between the oil reservoir and the working cylinder. The oil reservoir includes a connecting portion at the end and a bulge integrally formed with the connecting portion. The distance between the radial wall of the bulge and the outer wall of the working cylinder is greater than the distance between the radial wall of the connecting portion and the outer wall of the working cylinder. The working cylinder has a working chamber, with one end of the piston rod disposed in the working chamber and the other end extending out of the working cylinder. When the shock absorber is working, the pressure in the oil reservoir changes slightly but remains relatively stable, thereby making the shock absorber damping stable and sensitive, and optimizing the overall vehicle comfort and stability. At the same time, the stable air pressure in the oil reservoir also makes the working environment of the shock absorber oil seal more friendly, allowing for the design of a higher initial air pressure to improve overall vehicle performance and extend service life.

The invention discloses a material for preparing a carrier roller body, the carrier roller body and a preparation method of the carrier roller body. The material for preparing the carrier roller body comprises the following raw materials in parts by weight: 40-60 parts of matrix resin; 40 to 60 parts of matrix granules; 10 to 20 parts of natural fiber; 1-3 parts of functional resin; 0.1 to 0.3 part of a plasticizer; 5-7 parts of an impact modifier; 0.6-1 part of a heat stabilizer; 0.6-1 part of a weather-proof auxiliary agent; the matrix resin is one or more of PVC (polyvinyl chloride), PP (polypropylene) and PU (polyurethane); the matrix aggregates are any one or more of carbon black, molybdenum disulfide, nano silicon dioxide and ultra-high molecular weight polyethylene; the functional resin is any one or two of chlorinated polyvinyl chloride and high-density polyethylene; the carrier roller body prepared from the material has the characteristics of excellent wear resistance, impact resistance, inherent flame retardance, shock absorption and sound absorption.

This utility model relates to the field of tellurium ingot casting technology, and specifically discloses a tellurium ingot casting device, including a furnace, a chute, a casting sump, and a casting machine platform. The furnace includes a crucible, a cover plate, insulating bricks, a heating device, a thermocouple, a first outer shell, a support, a rotating shaft, a connecting shaft, a leak detection port, and a pressure cap. The furnace is mounted on the support and connected by the rotating shaft. The cover plate is connected to the first outer shell through the connecting shaft. The first outer shell is made of stainless steel. The leak detection port is located on the side of the furnace near the chute. The crucible is made of silicon carbide graphite and is fixed to the first outer shell by the pressure cap. The insulating bricks and the heating device are located between the crucible and the first outer shell. This utility model adopts a two-stage zoned temperature-controlled melting and impurity removal method from bottom to top. Impurities easily float to the surface and solidify, resulting in good stratification with the molten tellurium. The impurity removal effect is good, the operation is simple, and the tellurium yield is high. The entire operation process is controlled by PLC, with a high degree of automation, avoiding frequent contact between operators and the high-temperature molten material, and creating a friendly working environment.

The present application relates to a kind of tin ash vacuum carbothermic reduction recycling valuable metal method, belong to non-ferrous metallurgy technical field.The tin ash is mixed carbon powder according to metal amount and carbon ratio 2~4:1, under the condition of temperature 900~1200 ℃, pressure 1~20Pa, time 1~3h, vacuum carbothermic reduction-directional condensation is carried out, finally, crude tin I is obtained in evaporation zone;While the lead-zinc mixed steam entering gas phase is condensed to obtain crude lead I by lead liquid trap, and then refined zinc is obtained by zinc liquid trap;The crude tin I obtained is evaporated I by vacuum to obtain refined tin and crude lead II;The crude lead I obtained and the crude lead II obtained are evaporated II by vacuum to obtain crude tin II and refined lead, and crude tin II returns the process of evaporation I by vacuum.This method is simple, easy to operate, and the required equipment is simple, low in cost, high in universality of raw material, good in working environment, and process is safe and controllable.