国产午夜综合久久99精品-亚洲av综合在线观看-999久久久免费精品播放-高清不卡av手机在线免费看

     
  中文版 English
 
Hot news:
  News
  Company news
  Industry News
  Current news
Hot Product
IPX1 IPX2 Drip Waterproof Test...
UL1439 Sharp Edge Tester
BND-TPK05 IEC 60529 Test Probe...
IEC62368 test probe kit BND-TP...
IEC 61032 Standard Test Probe ...
IEC60320 EN60320 Appliances co...
UL 498 Standard Plugs and Rece...
IPX1 to IPX4 Drip rain test an...
Vertical horizontal vibration ...
IP5X IP6X Sand and dust proof ...
climate constant temperature a...
IPX1 to IPX9 waterproof testin...
 
 
Industry News
Home  -  News  -  Industry News
What are the steel balls used in the laboratory?
From: BONAD  Date: 2023-12-26 16:53:36
The Impact Test Steel Ball is mainly used to determine the shell mechanical strength of appliances. The shells of the appliances should be sure that it can not appear the danger within the scope of the standard ranges when operating.it is suitable for the appliances which surfaces of shells are damaged and will contact with the hazardous parts, and also suitable for testing  mechanical strength of glass,PVC ,ceramics and so on.


The specification of the impact test steel ball:

weight

tolerance

material

hardness

227g

±5%

G20CrNi2Mo

HRC68-75

500g

±5%

G20CrNi2Mo

HRC68-75

535g

±5%

G20CrNi2Mo

HRC68-75

1040g

±5%

G20CrNi2Mo

HRC68-75


2,Method of Application

Lift the steel ball up to the appropriate height , perpendicular to the sample surface,and then release the ball impact samples.

Energy(J)=weight (kg)*gravity acceleration*high(m) the following table g =9.783


Energy

0.14J

0.20J

0.35J

0.50J

0.70J

1.00J


height

Steel ball 227g

63mm

90mm

157mm

225mm

315mm

450mm

Steel ball 500g

28mm

41mm

71mm

102mm

143mm

204mm

Steel ball 535g

27mm

38mm

68mm

95mm

137mm

190mm

Steel ball 1040g

14mm

20mm

34mm

49mm

69mm

98mm


3,Note:

■ The steel ball needs to be coated anti-rust oil to storage after

testing

■ Pay attention to protection work to prevent injury when testing.

■ Please put on protective goggles when testing the fragile

Sample.



SHENZHEN BONAD INSTRUMENT CO.,LTD, is a high-tech company in China, BONAD quality system has been strictly certified by ISO9001:2015. As a CIE Membership.


Our main products are Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, accessibility test probe and test finger, Glow Wire Test and Needle Flame Test,freezing load test package, soil moisture sensor, all kinds of gauges and so on.


BONAD have gathered lots of experienced researchers and administrators on this field. BONAD products are manufactured strictly in accordance with various EN, IEC, CE, UL, VDE, VS, JIS, ISO, CEE, BS, FMV, GB and other similar international standards. All products can pass CE certificate and authenticated by the third party lab.


Please feel free to contact us if you need any support.
sales Dep:Alice@szbonad.com,
Cell/WhatsApp:+8613380391156

 
 
Home  |  Products  |  News  |  About us  |  Feedback  |  Contact us  |  
Copyright © 2008-2015 Hong Kong Bonad Technology Limited | Shenzhen Bonad Instrument Co., LTD. All Rights Reserved.
 
    Add:C505, Hongdu Building,Bao\\\'an45 district,Shenzhen,518101,Guangdong Province,China    Tel:+86-13380391156    Fax:0755-23721200    Email:Alice@szbonad.com
 
黑人大鸡把操逼视频| 国产午夜高清无码一级片| 午夜性无码视频在线播放| 大鸡巴插入阴道视频| 午夜福利国产三级片| 欧美精品视频在线| 午夜理论理论亚洲激情| 精品少妇一区二区三区中文字幕| 日韩欧美中文字幕国产精品| 日本十八禁大骚逼| 丰满少妇被强入在线观看| 在线无码一区二区三区不卡| 日韩视频无码日韩视频又2020| 日本欧美中文字幕| 日韩中文字幕一区二区高清| 操女人真人大骚逼| a一级毛片免费高清在线| 日本a国产精品久久久久| 日本熟人妻中文字幕在线| 国产日韩精品v一区二区| 使劲操大骚逼av| 日韩 中文字幕在线最新| 黄片观看骚货浪荡| 国产羞羞的视频在线观看| 大黑鸡巴操模特骚B| 爱爱视频小抽插动漫| 成人国产亚洲精品一区二| 男人操女人下面国产剧情| 啊啊啊操我视频大全| 亚洲国产成久久成人综合一区| 亚洲欧美日韩清纯唯美第一区| 亚洲精品成人无码app| 一级美女插逼百度| 色狠狠久久av北条麻妃| 91性潮久久久久久久久| 亚洲国产日韩欧美高清片| 西西大尺度无码免费视频| 捆绑调教白浆一区二区三区| 男的鸡巴插女的视频| 使劲操大骚逼av| 青青视频在线人视频在线|