
MT/T 785-1998 Diamond composite core drill bit
time:
2024-08-08 09:18:07
- MT/T 785-1998
- in force
Standard ID:
MT/T 785-1998
Standard Name:
Diamond composite core drill bit
Chinese Name:
金刚石复合片取心钻头
Standard category:
Coal Industry Standard (MT)
-
Date of Release:
1998-11-10 -
Date of Implementation:
1999-04-01
Standard ICS number:
Mining and mineral products>>Mining equipment>>73.100.99 Other mining equipmentChina Standard Classification Number:
Mining>>Geological Exploration Equipment>>D81 Geological Exploration Equipment
Drafter:
Tang Shengli, Mou Panhua, Lu WenjinDrafting Organization:
Xi'an Branch of China Coal Research InstituteFocal point Organization:
Coal Industry Coal Mine Special Equipment Standardization Technical CommitteeProposing Organization:
Industry Management Department of State Administration of Coal Industry

Skip to download
Summary:
This standard specifies the types and parameters, technical requirements, test methods, inspection rules, marking and packaging of diamond composite core drill bits (PDC). This standard applies to diamond composite core drill bits (hereinafter referred to as drill bits) for rotary drilling of holes in coalfield geology, underground gas extraction, water injection and drainage in coal mines. MT/T 785-1998 Diamond composite core drill bits MT/T785-1998 Standard download decompression password: www.bzxz.net
- Recommended standards
- SY/T 6497-2000 Universal coupling for oil drilling rigs
- QB/T 3691-1999 Box-type barley germination system
- NY/T 1464.35-2010 Pesticide guidelines for the field efficacy trials—Part 35:Weed control of herbicides in direct seeding vegetable fields
- SJ 20725-1998 Detailed specification for MF18 low temperature temperature compensation thermistor assembly
- GBZ 5-2002 Diagnostic Standard for Industrial Fluorosis
- SJ 3223-1989 General specification for transmitting system of ground radar
- JB/T 7346-1994 Test methods for mechanical continuously variable transmission
- JB/T 8036.1-1999 Machine tool fixture parts and components screw supports
- GB/T 5291.1-2001 Precision test of electric spark forming machines Part 1: Single-column machine tools (cross table type and fixed table type)
- GB/T 19599.1-2004 Test methods for synthetic fiber fishing nets Net weight
- GB/T 5009.122-2003 Determination of residual 1,1-dichloroethane in polyvinyl chloride resins and molded products for food containers and packaging materials
- GB/T 15845.3-1995 Technical requirements for audio-visual user terminals Methods for establishing communication between audio-visual user terminals using digital channels within 2 Mbit/s
- SJ 2384-1983 Photomultiplier tubes,Type GDB-221
- GB/T 2902-1998 Platinum-rhodium 30-Platinum-rhodium 6 thermocouple wire
- QB/T 2440.2-1999 Twist-off pliers, flat-nose pliers
Please remember: "bzxz.net" is the combination of the first letters of the Chinese pinyin of the four Chinese characters "standard download" and the international top-level domain name ".net". ©2024 Standard download websitewww.bzxz.net Mail:bzxznet@163.com