Abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing, which leads to part of the workpiece being worn away by friction. While finishing a material often means polishing it to gain a smooth, reflective surface, the process can also involve roughening as in satin, matte or beaded finishes. In short, the ceramics which are used to cut, grind and polish other softer materials are known as abrasives.
Cutting tool or cutter is used to cut, shape, and remove material from a workpiece by means of machining tools as well as shear deformation. There are several different types of single edge cutting tools that are made from a variety of hardened metal alloys that are vary in size as well as alloy composition depending on the size and the type of material being turned. These cutting tools are held stationary by what is known as a tool post which is what manipulates the tools to cut the material into the desired shape.
Inspections ensure accuracy and standard. Inspection can be a visual inspection or involve sensing technologies such as ultrasonic testing, accomplished with a direct physical presence or remotely such as a remote visual inspection, and manually or automatically such as an automated optical inspection. Non-contact optical measurement and photogrammetry have become common NDT methods for inspection of manufactured components and design optimization.
Machining is a process in which a material (often metal) is cut to a desired final shape and size by a controlled material-removal process. The processes that have this common theme are collectively called subtractive manufacturing, which utilizes machine tools, in contrast to additive manufacturing (3D printing), which uses controlled addition of material.
Material testing is an interdisciplinary field of materials science that covers the discovery of new materials and characteristic, classify particularly solids. The field is also commonly termed materials science and engineering emphasizing engineering aspects of building useful items, and materials physics, which emphasizes the use of physics to describe material properties.
Metrology is defined by the International Bureau of Weights and Measures (BIPM) as "the science of measurement, embracing both experimental and theoretical determinations at any level of uncertainty in any field of science and technology". It establishes a common understanding of units, crucial to human activity. Metrology is a wide reaching field, but can be summarized through three basic activities: the definition of internationally accepted units of measurement, the realisation of these units of measurement in practice, and the application of chains of traceability (linking measurements to reference standards). These concepts apply in different degrees to metrology's three main fields: scientific metrology; applied, technical or industrial metrology, and legal metrology.
Overall maintenance functions can defined as maintenance, repair and overhaul (MRO), and MRO is also used for maintenance, repair and operations. The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, and residential installations. Over time, this has come to include multiple wordings that describe various cost-effective practices to keep equipment operational; these activities occur either before or after a failure.
Sawing are commonly used for cutting hard materials. They are used extensively in forestry, construction, demolition, medicine, and hunting. saw is a tool consisting of a tough blade, wire, or chain with a hard toothed edge. It is used to cut through material, very often wood, though sometimes metal or stone. The cut is made by placing the toothed edge against the material and moving it forcefully forth and less vigorously back or continuously forward. This force may be applied by hand, or powered by steam, water, electricity or other power source. An abrasive saw has a powered circular blade designed to cut through metal or ceramic.
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(“Vallianz” and together with its subsidiaries, associate and joint venture companies, the “Group“) is an established provider of offshore support vessels (“OSVs“) and integrated offshore marine solutions to the oil and gas industry.
Headquartered in Singapore, Vallianz serves oil majors and national oil companies worldwide, and focuses on supporting customers’ offshore oil and gas exploration and production operations. Today, the Group owns and operates a young fleet of 62 OSVs while its associate owns and operates another 14 OSVs. Vallianz covers markets in the Middle East, North Africa, Central Asia and Southeast Asia.
Vallianz is continually working to enhance its customer value-add by broadening the spectrum of its marine services and solutions to address the unique requirements of customers’ offshore oil and gas field operations. The Group conceptualised and developed its flagship vessel – Rawabi Integrity, which is the world’s first and only specialised offshore floating storage and supply vessel – to provide a cost-effective and productivity enhancing solution for a key customer.
Offshore marine services include:
We have invested in industry experts to operate and manage our fleet of OSVs which include anchor handling tugs with supply capabilities, platform supply vessels, offshore floating storage and supply vessel, submersible launch barges, maintenance and accommodation vessel, utility support vessels, flat top cargo barges, accommodation work barge, towing tugs, utility vessel, liftboats and crew boat.
Besides transporting equipment and pipes, materials and supplies to support upstream activities, our vessels are also employed for anchor handling of construction barges, positioning of drilling rigs and to provide assistance in maintaining and safeguarding offshore facilities.
The Group also owns a shipyard in Indonesia (Batam) which serves as a marine base for vessel docking, repair and maintenance works. Our shipyard operations possess strong in-house fabrication and engineering capabilities.
Leveraging on its established market position in the Middle East, the Group’s strategy will be to continue strengthening existing customer relationships and seeking opportunities to increase its penetration in the major and emerging offshore oil and gas markets. We will focus on delivering operational and service excellence, and broadening our range of marine assets and solutions to address customers’ needs.
Vallianz is listed on the Catalist Board of the Singapore Exchange.
We are continually looking for people that will join the dynamic, offshore world of Vallianz and contribute to the realization of its vision to be recognized as a world-class provider company in the offshore marine industry.
If you are interested in working at Vallianz, please send your resume via e-mail to wengkeng.chan@vallianzholdings.com
Awalnya dipublikasikan pada7 May 2020 @ 11:21 AM
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