Polish-English Basic Dictionary of Archaeological Terminology of Modern Tobacco Pipe Findings with Elements of Pipe Production and Tobacco Smoking in the Modern Period

The aim of this work is to present the translation of professional terminology concerning tobacco pipes acquired by excavation methods, supplementing the already existing term base of concepts with a Polish-English translation, important in the context of the current research on this subject. This dictionary is a translation of the basic terms used in English-language works (also used in works of researchers from Central and Eastern Europe) concerning descriptions of tobacco pipe remains (based on finds of stub-stemmed pipes, one-piece clay pipes and porcelain pipes) in archaeological research, the production of such paraphernalia and elements of history of tobacco smoking, which were additionally supplemented with terms currently used in Polish archaeological literature. This dictionary should be treated as a contribution to further work on standardisation of European archaeological terminology, which should provide an aid for both specialists and enthusiasts reaching for professional literature on antique pipes.

Improved Design of Steel Pipe Transfer Device Turnover Mechanism

In the steel pipe manufacturing industry, the steel pipe manufacturing process is completed by multiple processes. And on the automatic production line, the transfer process between steel pipe working procedure is realized by the steel pipe transfer device. The unreasonable structural design of related parts in the steel pipe transfer device will result in the failure of the steel pipe transfer process to proceed smoothly, which will directly affect the normal operation of steel pipe production line, resulting in steel pipe productivity’s decrease and causing losses to steel pipe manufacturers. This article proposes an improved design method of the turnover mechanism of transfer device between steel pipe manufacturing processes.

Model of Layer-by-Layer Cooling Trajectory in Rolled Products by TMCP

The paper describes some aspects of a scientific and research project dedicated to mechanical property prediction in plates for pipe production rolled at PJSC MMK 5000 Mill. The prediction is based on billet thermal state modelling by thermo-mechanical control process (TMCP) of rolling and subsequent cooling. The central focus of the modelling is the calculation of billet layer-by-layer cooling trajectory. The paper presents some results of model verification by test rolling.

A New Transient Thermal Model for Predicting Cooling Temperature and Cooldown Time of a Subsea Pipe-in-Pipe Flowline System Transporting Waxy Hydrocarbons

The proper understanding of cooling temperature and cooldown time for the operation of a subsea system producing hydrocarbons from the reservoir to the host facility is one of the important flow assurance issues for managing heat retention in the production system due to solids formation and their deposition. In this paper, an analytical transient thermal model is developed for determining the cooling temperature and cooldown time for shut-in operations of a subsea pipe-in-pipe production system, transporting waxy crude oil from the reservoir to the host facility. Here, the cooldown time is defined as the time when the fluid temperature approaches the wax appearance temperature before reaching the hydrate formation temperature during any shut-in operations. The analytical model builds upon an inhomogeneous transient method incorporating an internal temperature gradient. The model results are benchmarked against the commercial OLGA simulation results for a few selected deepwater pipe-in-pipe flowline configuration. The model predictions resemble well with OLGA results over a range of conditions. The analytical model could optimize dry insulation and cooldown time requirements efficiently for the assumed PIP flowline configurations and fluid properties under any subsea environments.

Havana Tradition Platform Pipe Production and Disposition: Implications for Interpreting Regional Variation in Midwestern Hopewell Ceremonialism

This study documents the contexts of platform pipe creation, distribution, and disposition at Illinois Havana Hopewell Tradition (50 BC to AD 200–250) sites to identify regional variation in Hopewell ceremonialism and exchange. We observe that the large deposits of stone pipes buried during communal rituals in the Scioto Valley and the continued influence of the Hopewell Sphere of Interaction have skewed archaeological interpretation. Aside from the several large deposits, pipes are limited in the Scioto Tradition and seldom found in habitation areas. In Illinois, pipe fabrication debris commonly occurs in habitation areas along with numerous examples of pipe repair and maintenance. Local pipestones—often from northern Illinois Sterling deposits—predominate, and exotic imported pipestones are unusual. Pipes are rare inclusions with individual burials as indicators of status, spiritual prowess, achievement, or group membership. The high value placed on pipes as communal sacra in Ohio and their value in Illinois as items of personal influence parallels their common occurrence in Illinois and their unique context in Ohio Hopewell. This study of the contexts of pipe manufacture and deposition reinforces current discussions of such artifact assemblages as important in documenting local variations in political, social, and religious mortuary ceremonialism across the “Hopewellian sphere.”

ASSESSMENT OF THE IMPACT OF HARMFUL AND HAZARDOUS PRODUC TION FACTORS ON THE OPERATOR OF THE PRE-INSULATED PIPE PRODUCTION SITE

Hazardous and dangerous production factors on the operator of the pre-insulated pipe production site is considered. It is shown that working conditions correspond to hazard class 3.2.

Spiral welded pipe improvement by implementation of Six Sigma

PurposeOnline spiral pipe manufacturing is one of the most common processes for producing water and gas transmission pipes. Weld quality and pipe circumstances are the most important qualitative characteristics of these pipes determining the overall cost of production. The purpose of this paper is describing how to implement Six Sigma on the production of spiral welded pipes with a real case study.Design/methodology/approachFirst, the capability of the pipe production process has been performed by using the defects per million opportunities to allow for comparison and analysis of the project effectiveness. Then, the variation pattern of this index, after an improvement project, has been investigated. Finally, Taguchi's loss functions are used to evaluate the effectiveness of these projects.FindingsThe results represent a significant improvement in the production process and a reduction in production costs regarding both weld quality and pipe circumstances. Due to the successful implementation of Six Sigma project in welding and pipe quality improvement, the Define, Measure, Analyze, Improve and Control (DMAIC) method can be used effectively in defining weld and pipe quality.Originality/valueIn this proposed work, for the first time, research on the implementation of Six Sigma in the pipeline and welding industries on two online spiral production machines has been investigated. The DMAIC method has been used for the first time to improve the dimensional quality and weld quality of spiral pipes.