Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.
The function of head protective equipment such as safety helmet
We provide exclusive customization of the products logo, using advanced printing technology and technology, not suitable for fading, solid and firm, scratch-proof and anti-smashing, and suitable for various scenes such as construction, mining, warehouse, inspection, etc. Our goal is to satisfy your needs. Demand, do your best.
Professional team work and production line which can make nice quality in short time.
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3.6 ,Capacity, of ,helmets, to absorb ,impact, energy 30 3.7 Assessment of the “back calculation” method 31 3.7.1 9.5m/s prediction of 8.5m/s data 33 3.7.2 8.5m/s prediction of 6.0m/s data 34 3.7.3 General observations relating to back calculation method 36 3.8 Comparison of ,helmet, performance using revised (8.5m/s) assessment protocol 37
Safety ,helmet, should withstand the ,impact, of a plumb ball of 500gm weight with conical steel point having an included angle of 36 degree or a spherical point of radius not more than 0.5mm, dropped from a height of 3 meter with pointed end downward onto the top of the crown of the ,helmet, without getting pierced, dented or suffering failure of any integral part.
capacity, of the froth is to ingest the majority of the effect vitality, ... ,Impact, Test on Motorcycle ,Helmet, for Different Angles Using Finete Element Analysis. ... ,ordinary, bicycle which is being utilized every day in our life. As here the head protector is
22/9/2017, · 3 Selection of the parameters characterizing the behavior of assemblies of safety ,helmets, and spectacles/goggles upon falling weight ,impact,. Previous research into the behavior of ,helmets, upon falling weight ,impact,  showed that in such situations both the shell and the cradle undergo significant deformation dependent on the ,helmet, construction.
Protective ,Capacity, of Ice Hockey ,Helmets, against Different ,Impact, Events. Files in This Item: File Description Size Format ; Clark_et_al._2016_-_Protective_,Capacity,_of_Ice ... Download: Title: Protective ,Capacity, of Ice Hockey ,Helmets, against Different ,Impact, Events: Authors: Clark, J. Michio; Post, Andrew; Hoshizaki, Thomas Blaine; Gilchrist ...
Bicycle ,helmets, are designed as a compromise among ,impact, management, cooling, weight, cost and many other factors. Within all of the constraints, current ,helmets, do a good job. But no ,helmet, can protect you against all impacts, even a motorcycle ,helmet,.
We will follow the steps to see what producing an ,ordinary helmet, might cost--not Lance Armstrong's Giro, but a cheap discount store ,helmet,. For starters, you need a design. That's probably a substantial part of the cost, since it involves a design staff or consultants, other development costs including prototypes, lab testing, some market research, use of focus groups, tooling for the design etc.
1/1/1994, · Modelling of the ,impact, response of motorcycle ,helmets, 0 5 10 20 25 30 deflecI& mm FIG. Il. Simulated prEN 398 impacts for ABS shell and 56 kg m-liner, showing the anvil force versus the total foam deflection for -the first ,impact, at 7 m s-onto a Rat anvil, ---the second ,impact, at 6 m seonto a hemispherical anvil.