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MIL-HDBK-7B, MILITARY HANDBOOK: LUMBER AND ALLIED PRODUCTS (6 AUG 1982)., lumber and wood products normally procured in considerable quantity for Department of Defense installations. Engineers are particular directed to the chapters dealing with strength of wood, preservative treatment, and moisture c o n t e n t . The chapters dealing with storage handling, tallying, inspection, grading, and sizes were written with the problems of inspectors, stock handlers, and supply clerks in mind. All of these chapters prove useful to the requisition writer by providing references useful in determining which species, q u a l i t i e s , and sizes of lumber, plywood, poles, railroad ties, and other wood products are usable for a given end use. This handbook also provides ready reference to the physical and mechanical properties of lumber products and the conditions of use that require special treatment with preservatives, fire r e t a r d a n t s , or special surfacing and machining. It is the primary purpose of this handbook to provide the kind of background information needed in making necessary decisions on all such problems. This type of information is not readily available elsewhere in a form directly related to supply problems involving lumber and allied products. To the extent that this handbook achieves its primary purpose, it is believed that important economies can be effected, greater assurance secured that the needed species, q u a l i t i e s , q u a n t i t i e s , and sizes will be received, and requisitioning procedures f a c i l i t a t e d . The handbook also has as part of its purpose to provide information on the handling, storage, and use of wood products to the end that better service will be obtained at less cost. The large quantities of wood products normally required by the various branches of the Department of Defense make economy of use just as essential as economical procurement; failure in the one can quickly offset any gains realized through success in the other. Moreover, proper handling, storage, and use are essential in the interest of conservation of the forest resources.

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基本信息
标准名称:高气压环形潜孔钻机
英文名称:High-pressure ring in-the-hole drill rigs
中标分类: 机械 >> 通用机械与设备 >> 凿岩机械
ICS分类: 采矿和矿产品 >> 采矿设备 >> 巷道掘进和敷设管道设备
发布部门:国家发展和改革委员会
发布日期:2003-12-29
实施日期:2004-05-01
首发日期:1900-01-01
作废日期:1900-01-01
归口单位:全国有色金属标委会
起草单位:铜陵有色金属(集团)公司精升矿冶设备制造公司
出版社:中国标准出版社
出版日期:2004-04-19
页数:16开, 页数:9, 字数:15千字
书号:155066.2-15666
适用范围

本标准规定高气压环形潜孔钻机的型式、工作方式、技术要求、安全要求、试验方法、验收规则及标志、包装、运输、贮存。本标准适用于矿山、隧道、水利等岩土工程中进行全方位大直径深孔凿岩的高气压环形潜孔钻机。

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所属分类: 机械 通用机械与设备 凿岩机械 采矿和矿产品 采矿设备 巷道掘进和敷设管道设备