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Visual symbols of CNC machine tool operation instructions
Introduction
Numerically Controlled (NC) machining is an automated process used to cut complex shapes into pieces of material. NC machining requires an operator to be trained on the use of a programmable interface to control the machinery. This requires the operator to first understand the variou......
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Reform plan and implementation of machine tool numerical control
Modern CNC machining reform plan and implementation
1 Introduction
At present, CNC machine tools are widely used in many fields, not only meeting the needs of various stages of production, but also playing a very important role in the production process. In order to provide better service to cus......
Technical conditions for cold-formed steel (GB/T 6725-1992)
GB/T 6725-1992 Cold-bent steel technical conditions
This general technical conditions for cold-bent steel GB/T 6725-1992 stipulates the order and technical requirements for the cold-bent of steel plates and narrow strips.
This code is applicable to cold-bent steel plates with thickness of ≤1.5......
ASTM A484M-1998 General requirements for stainless and heat-resistant steel bars, billets, and forgings
Abstract
This specification covers general requirements for wrought stainless steels and heat resisting steels in the form of bars, billets, blooms, and forgings for general requirements. The steel shall conform to chemical composition requirements, in which cost-effectiveness shall be considered......
Guaranteed hardenability structural steel (GB 5216-85)
Overview
The GB 5216-85 is the Chinese national standard for Quenched and Tempered Structural Steels. It contains minimum requirements for chemical and mechanical properties, testing, and inspection practices. Under this standard, steels are classified and evaluated in service depending on their ......
GB 1499-91 Rebar for Reinforced Concrete with Waste Heat Treatment
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Heat Treatment of Steel Reinforcement for Reinforced Concrete
Heat treatment of steel reinforcement is necessary when constructing reinforced concrete components. This process is used to improve the performance of the concrete component, by enhancing the properties of the steel reinforcement. T......
Carbon dioxide shielded welding steel wire GB 8110-87
Carbon dioxide gas shielded welding (CO2 gas shielded welding) is a method of welding mainly conducted in an atmosphere of carbon dioxide gas, and is widely used in industry. It is one of the standard processes of automatic welding, and accounts for about 90% of the total world welding consumable ......
GB 1173-86 Specifications for Casting Aluminum Alloys
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2500 Words on Casting Aluminum Alloy Technology
The casting of aluminum alloys is an important process for producing components of various shapes and sizes. The technology has been around since ancient times and has been used to create tools, weapons, and sculptures. In this paper, ......
High-temperature alloy hot-rolled and forged bars for ordinary load-bearing parts (YB/T5245-1993)
Introduction
High temperature alloy hot-rolled and forged barstock for ordinary bearings are widely used in aerospace, automotive and bearing industry due to their excellent performance in high temperature and wear resistance. In order to better develop and use it, YB/T 5245-1993 High Temperature ......
Hot-rolled steel strip for pressure vessels (GB/T5139-1993)
High strength hot rolled steel strip for pressure vessel (GB/T5139-1993)
Pressure vessels are closed containers for storing liquids and gases at high pressure, and their structural and performance requirements are very demanding. The high-strength hot-rolled steel strip for pressure vessels produ......
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