Analyzed and compared are the NDT items between the three commonly-used steel linepipe standards namely,API Spec. 5L-2000,GB/T9711.1-1997and GB/T9711.2-1999(SAW parts)in a bid to guide production,inspection and purchase of steel tubular products.
The wire-mesh belt furnace adapts to heat treatment of varieties and a large quantity of plate parts, especially in circular saw made of spring steels (diameter φ≤450 mm, thickness δ = 0. 95 - 3. 00 mm) on woodworking, gardening and cotton machinery.
A comparison of the diamond saw blade using ordinary diamond with that using Ti-plated diamond reveals that the desquamating grade of diamond reduces from 72.2% to 32.3%,representing a decrease of 39.9%;
Control engineering saw rapid development in many countries in the period immediately following the Second World War.
Consideration was given to calculations of the parameters of transition between two opposite-magnetization domains in a thin-film working layer of the hard magnetic disk with regard for the saw-toothed form of transition.
On the interaction of finite-amplitude saw-tooth sound waves with an axisymmetric supersonic jet
The results of an experimental investigation of the interaction of finite-amplitude saw-tooth sound waves (with a sound pressure level of 170 dB) with an axisymmetric supersonic air jet are presented.
Internal streamwise action of saw-tooth sound waves on turbulent jets