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Showing posts from May, 2022

Polymer Design Guide

https://www.youtube.com/watch?v=c9Hp3O3RT7g https://www.youtube.com/watch?v=03Izrq9i61M https://www.youtube.com/watch?v=usQ6Mo-U9lY https://www.youtube.com/watch?v=RK0J5hNbZUw&list=PLurEha0xKoTej7H4AITmBT39bQd6VGZ5r  Plastic Design Guide for pDCPD Polydicyclopentadiene (PDCPD) is  a polymer which is formed through ring opening metathesis polymerisation (ROMP) of dicyclopentadiene (DCPD) . The difference between the various systems lies in the type of catalyst used to create the polymer, but the final polymer properties are similar. WHAT IS REACTION INJECTION MOLDING? Reaction injection molding  (RIM) is a thermoset plastic molding technique where two liquid reactants – an isocyanate component and a polyol resin mixture – are injected into a metal mold at relatively high temperatures and pressure. The mold is composed of two halves that are separated once the material reaction has taken place inside. Reaction time is typically just minutes long, making for more efficie...

Well Nut

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WELL NUT advantages: Seals out ambient moisture Muffles noise Dampens vibrations and shock Isolates electrical conductivity Isolates galvanic corrosion between dissimilar assembled components Snap in version can be pre-attached to parent material Available in custom materials to meet specific application requirements Specifications: Body Material: Chloroprene and EPDM Nut Material: Brass Thread Class: 2B (in); 6H (mm) +1-978-649-6201 sales@belmetric.com   EPDM + Brass Insert "Well" Nut Well Nuts have a flange on one end with a long shank that is inserted into a hole. During install the tightening of the bolt causes the shank to bulge and expand, securing it in place. Commonly used for applications where a weather resistant seal is needed. Also used for blind hole applications. Also known as as a Rawl nut, Rawlnut, or a rubber rivet nut A   well nut   is a   blind rivet -like type of   fastener   used to blindly fasten a piece (much like a   molly bolt ...

Safety of EV Battery Updated on 2022-06-30

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Updated on 2022-06-30 Electric two-wheelers involved in recent fire incidents did not even have 'basic safety systems', an expert panel formed to investigate the accidents has found, prompting the government to seek corrective mechanisms from and warn of legal action against their manufacturers. The expert committee found there was no 'venting mechanism' for overheated cells to release energy and that the 'battery management system' was seriously deficient, an official privy to the findings of the panel told ET. The panel is said to have pointed out that several of the electric two-wheelers came with only 'minimum functionality' and 'shortcuts' were taken instead of prioritising vehicle safety, ET gathers. The final report of the expert panel is expected within a week but its recommendations on safety have already been shared with EV manufacturers. "Companies have already been told that many of the EV two-wheeler manufacturers have taken sho...

Ride quality of 2 wheelers an elucidation

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  1 Home Following Answer Spaces Notifications Try Quora+ Add question Since a scooter has a low center of gravity, is it easier to handle than other bikes like FZ  One of the reasons why motorbikes are better than scooters when it comes to handling is because they have  higher  Centre of Gravity. You might believe lower cg always gives better handling. Because all sports car, super cars are designed to have lower cg. Even Formula 1 cars which are fastest and “best handling cars in the world” have low cg (one of the lowest cg when it comes to cars). In case of  Four Wheelers  it is essential to keep the cg as low as possible so as to prevent “Rolling”. Higher the cg, higher will be the rolling. But in case of motorbikes you need this rolling to lean the bikes more effortlessly and effectively. Because higher cg enables the rider to shift weight easily while cornering. Bikes like KTM RC/Kawasaki Ninja have higher cg compared to Royal Enfield Bikes. Any rider...