Quality of lathe of 99.8% numerical control raises sampling o

Published on 2018-01-26

Logarithm of near future of total bureau of national qualitative check accused lathe product quality to undertake the country is supervised selective examination. Chinese industry signs up for reporter know, selectived examination this in all 33 kinds of products that 33 enterprises produce 11 provinces such as Tianjin, Heilongjiang, Liaoning, Zhejiang, Jiangsu, Shaanxi, Shandong, Hunan, Hubei, Henan, Guangdong, municipality directly under the Central Government (do not involve exit product) , sampling percent of pass of product objective quality is 99.8% .
Selective examination this to reach the requirement that relevant product standard sets according to national relevant specification, it is protection of precision, dormant to the leakage of product of numerical control lathe, geometry danger, mechanical overload, dangerous to twine be involved in, extruding and cut danger, spacing the device, measure that prevent a pine, unusual stop, interlocking protection, clip maintains the device, equalizer, device that discharge bits, control equipment.
Selective examination to make clear as a result, the product quality of industry of numerical control lathe had very big rise. It is protection of precision of the leakage that selectives examination this, geometry, dormant danger, mechanical overload, dangerous to twine be involved in, extruding and cut dangerous, spacing percent of pass all achieves the 34 projects individual event such as the device, measure that prevent a pine, noise, safe guard 100% .
Nevertheless, the discovery in pledging inspect bureau comrade is selectiving examination still has product of machine tool of partial numerical control to put in the quality problem of different level: It is individual product electrical shock defends unqualified. Mandatory national level GB5226.1-2002 " mechanical and safe mechanical and electric equipment the 1st part: Current technology condition ” regulation, it is dangerous inside electric ark to all appearing the straight contact report of voltage place defends grade should achieve IP2X. There is partial product electrical shock to defend in selectiving examination unqualified, basically be 380V power source appears into line terminal and contactor terminal is bare, did not achieve defend requirement. 2 it is individual product protective ground connection is successional do not accord with a standard to ask. Mandatory national level GB5226.1-2002 ” mechanical and safe mechanical and electric equipment the 1st part: Current technology condition ” regulation, of electric equipment and machinery all appearing but electric part should receive circuit of protective ground connection to go up repeatedly. There is partial product to protect ground connection in selectiving examination successional do not accord with a standard to ask.
Be aimed at the main quality problem that in selectiving examination, discovers, total bureau of national qualitative check already enjoined technology of each district quality supervises a branch to wait for the regulation of concerned law laws and regulations strictly according to product quality standard, right the enterprise of off quality of the product in selectiving examination undertakes handling lawfully, deadline is rectified and reform. In the meantime, right the business with the better quality in selectiving examination, increase propagandist strength, guide consumption. Total bureau of national qualitative check will continue to undertake dogging selectiving examination to quality of product of numerical control lathe, make industry of numerical control lathe rectify what the constitution measures a level to rise.