English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Spiral pipe mill in which submerged arc welding is made immediately after pipe forming limits the productivity by the welding speed. The higher welding speed is restrained by occurrence of inner bead defects such as undercutting and concave shape.The high speed spiral welding techniques including development of new flux and determination of proper welding parameters were established by laboratory simulation tests.By applying these techniques to actual spiral pipe mill, it became possible to obtain 4m/min in welding speed.

Optimization of welding materials and conditions for high speed submerged arc welding of spiral pipe.