GB/T 13344-2019 Translated English of Chinese Standard. (GBT 13344-2019, GB/T13344-2019, GBT13344-2019): Down-the-hole hammers and bits [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2020年11月13日 - 16 頁 This Standard specifies terms and definitions, models and basic parameters, technical requirements, test methods, inspection rules as well as marks, packaging, transport and storage for down-the-hole hammers and bits. This Standard is applicable to down-the-hole hammers and bits that are powered by compressed air or a mixed medium of compressed air and water. |
內容
| 3 | |
Scope | 5 |
Terms and definitions | 6 |
Technical requirements | 9 |
Test methods | 11 |
Inspection rules | 12 |
Marks packaging transport and storage | 14 |
Annex A informative Matching table of working parameters of hammer and downthehole drilling machine | 16 |
常見字詞
acceptance pressure according to JB/T Air consumption L/s basic parameters batch of products Bit diameter Changsha determined as nonconforming down-the-hole bits Edition energy J Impact exit-factory inspection frequency Hz Air hammer shall meet Hammer specification hammers and bits hammers see Table heat-treated high pressure down-the-hole Hz Air consumption Impact frequency Hz inspect 5 pieces inspected according Inspection item Technical inspection items fail low pressure down-the-hole machines and pneumatic means non-inspection items medium pressure down-the-hole meet the requirements millimeters model expression method modified product modified requirements packaging pieces fail pieces per batch piston impact pressure down-the-hole hammer Product quality supervision product series Randomly inspect rear connector thread requirements method Exit-factory requirements of JB/T requirements of Table Research Institute rock drilling machines series and basic Service life Rock specific energy specification series Standard starting air pressure surface coating quality Table 9 inspection terms and definitions Thread specification Tianshui transport and storage