scholarly journals Development of Manufacturing Technology for High-Strength Hull Steel Reducing Production Cycle and Providing High-Quality Sheets

2019 ◽  
Vol 239 (5) ◽  
pp. 536-543
Author(s):  
V. G. Milyuts ◽  
◽  
V. V. Tsukanov ◽  
E. I. Pryakhin ◽  
L. B. Nikitina ◽  
...  
Keyword(s):  
High Strength ◽  
Manufacturing Technology ◽  
Production Cycle ◽  
High Quality ◽  
Hull Steel

Production of Forged Rolls High-Quality Instrument from Adamite Steel

2012 ◽  
Vol 628 ◽  
pp. 482-485
Author(s):  
Yulia A. Lukina ◽  
Andrey V. Stepanov ◽  
Evgeny N. Bobrov
Keyword(s):  
Mechanical Properties ◽  
Heat Treatments ◽  
Manufacturing Technology ◽  
High Quality ◽  
Heavy Machinery ◽  
Microstructure And Mechanical Properties ◽  
Quality Instrument

The paper deals with manufacturing technology for the forged rolls and sleeves from adamite steel at Electrostal Plant of Heavy Machinery (JSC «EZTM»). The influence of different heat treatments on microstructure and mechanical properties of the level of adamite steel is presented.

scholarly journals Finite Element Analysis of Damping Properties of High Strength Aluminum A356 Alloy Composite

2019 ◽  
Vol 8 (12S2) ◽  
pp. 298-300
Keyword(s):  
Silicon Content ◽  
A356 Alloy ◽  
High Strength ◽  
Mode Shapes ◽  
Damping Properties ◽  
High Quality ◽  
Element Analysis ◽  
Present Evaluation ◽  
Aluminum A356 Alloy ◽  
Numerical Examination

Aluminum composites are in reality notably used as a piece of various programs due to their tremendous load to quality homes. Many studies works had been finished to ponder and improve the mechanical houses of aluminum mixes. The formation of alloying segments anticipate a fundamental component in choosing the properties of a mix. The eventual results of numerical systems have been recognized via and massive as they eagerly facilitate with the check comes to fruition. In the present evaluation a numerical examination contraption i.E., restrained section examination (FEA) is used. The paintings presented in this paper is away for the examination of effect of vibration traits of aluminum blends of various sport plans. The displaying and evaluation is finished the usage of ANSYS programming. A secluded assessment is carried out to recognize the vibration direct i.E., trademark repeat and mode shapes, of the cloth considered. The mode shapes and fashionable Recurrence receive a essential part within the framework Of dynamic machines. The consonant evaluation has been made to choose repeat traits. The examination software scrutinizes the information from the records archive shapes the information and makes the yield document containing the nodal migrations and nodal stretch estimations of various nerves. From the examination it's miles assumed that as the copper and silicon content material within the amalgams grows winding decreases then again. ANSYS comes about insist the smallest Modulus twisting and a definitive tractable strengthincaseofthe380 mixes of 380 additions with the extension in copper and silicon content. Subsequently Al 380 amalgams show high-quality fine with least vibration.

scholarly journals Digital Workflow for Homemade Aligner

2021 ◽  
Author(s):  
Dalal Elmoutawakkil ◽  
Nabil Hacib
Keyword(s):  
New Technology ◽  
Digital Technologies ◽  
High Strength ◽  
High Quality ◽  
Digital Devices ◽  
The World ◽  
3D Printers ◽  
Dental Profession ◽  
Dental Offices ◽  
Clear Aligner

Advanced digital technology is rapidly changing the world, as well as transforming the dental profession. The adoption of digital technologies in dental offices allied with efficient processes and accurate high-strength materials are replacing conventional aligners workflows to improve overall patients’ experiences and outcomes. Various digital devices such as 3D printers, intraoral and face scanners, cone-beam computed tomography (CBCT), software for computer 3D ortho setup, and 3D printing provide new potential alternatives to replace the traditional outsourced workflow for aligners. With this new technology, the entire process for bringing clear aligner production in-office can significantly reduce laboratory bills and increase patient case acceptance to provide high-quality and customized aligner therapy.

Freshwater pearl culture in China.

2020 ◽  
Author(s):  
Lin Cao
Keyword(s):  
Shell Length ◽  
Culture Period ◽  
Production Cycle ◽  
High Quality ◽  
Host Fish ◽  
Genetic Quality ◽  
Operative Care ◽  
Artificial Breeding

Abstract Artificial breeding of freshwater pearl mussels is widely used to improve the yield of pearl culture. All phases of the production cycle, including collection and culture of the broodstock, release of the glochidia, provision of the host fish for glochidia to attach to, and collection of mussel seeds, can be controlled artificially. The advantages of artificial breeding are that it can help to produce high quality pearls and improve the genetic quality of pearl mussels. Collected mussel seed are transferred from holding jars into small 200 µm mesh baskets (10 cm diameter x 5 cm). Each basket was supplied individually with 0.1-0.2 L of water per minute. When the mussels' shell length reaches over 10 cm, they can be operated to culture pearl. After post-operative care the implanted mussels are stocked in ponds. The mussels are kept in nylon bags (2 mussels per bag) and are hung from bamboo or PVC pipes and placed in ponds at 1 m depth. Periodical checking of mussels, with removal of dead ones and cleaning of bags, is required throughout the culture period of 12-18 months.

Description of the PM Process by Using Ishikawa-Analysis

2013 ◽  
Vol 752 ◽  
pp. 48-56
Author(s):  
Andrea Simon ◽  
Károly Kovács ◽  
C. Hakan Gür ◽  
Tadeusz Pieczonka ◽  
Zoltán Gácsi
Keyword(s):  
Thermal Conductivity ◽  
Thermal Expansion ◽  
Powder Metallurgy ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
High Strength ◽  
Manufacturing Technology ◽  
Low Density ◽  
Composite Manufacturing ◽  
Low Thermal Expansion

Composites are special material which can provide individual properties such as high strength with low density or good thermal conductivity with low thermal expansion coefficient. Composites conform to the constantly evolving and more complex expectations. In order to make a product with good quality, it is important to choose suitable materials and technology. In this research powder metallurgy (PM), as one of the most common composite manufacturing technology, was examined -which factors and mechanisms influence mostly the properties of the product. Ishikawa method was used to reveal these correlations.

scholarly journals Achieving high quality surface of laminated glass-reinforced plastics during milling

2018 ◽  
Vol 224 ◽  
pp. 01044 ◽  
Author(s):  
Daniel Rychkov ◽  
Dmitry Lobanov ◽  
Aleksey Kuznetsov
Keyword(s):  
Glass Fiber ◽  
Cutting Speed ◽  
Laminated Composite ◽  
High Strength ◽  
High Quality ◽  
Fiber Plastic ◽  
Flank Surface ◽  
Cutting Modes ◽  
Quality Surface ◽  
High Quality Surface

Milling is one of the most common ways of workpiece machining, but obtaining a high quality surface of laminated composite materials is difficult due to their layered structure, high strength characteristics and low heat conductivity. This poses a problem of creating a milling technology that provides a high quality surface. This research investigates STEF -1 glass-fiber plastic with fine grain structure processed on the equipment with high cutting speed. The object of the research is roughness Ra as a quality criterion. Our glass-fiber plastic milling experiments demonstrate that the surface quality depends to a large extent on the cutting modes and the wear level of the tool cutting edge which is determined by the size of the wear bevel on the flank surface. The blade of the cutting tool is established to wear unevenly during glass-fiber plastic processing as it interacts with two different materials. We recommend the wear bevel on the flank surface to be less than 0.35 mm to ensure the high quality of the laminated composite material surface. The cutting modes should be within the following range: feed per tooth is 0.15 ÷ 0.17 mm/tooth, cutting depth is 0.5 ÷ 0.9 mm, cutting speed is above 45 m/s, with the cutting part of the tool being made of high-strength instrumental materials.

The Contribution of the Transition Zone to the Strength of High Quality Silica Fume Concretes

1987 ◽  
Vol 114 ◽  
Author(s):  
A. Bentur ◽  
A. Goldman ◽  
M. D. Cohen
Keyword(s):  
Pore Structure ◽  
Transition Zone ◽  
Silica Fume ◽  
Fresh Concrete ◽  
High Strength ◽  
High Quality ◽  
The One

ABSTRACTThe strength of high strength silica fume concretes is usually attributed to the reduction in w/c ratio and the refinement of the pore structure. A study of concretes and pastes, with and without silica fume, suggests that the contribution of the silica fume to strength is also the result of the densification of the transition zone. It is argued here that this influence is as important as the one due to the reduction in w/c ratio. It is suggested that the densification of the transition zone is the result of the effect of the silica fume on the nature of the fresh concrete.

scholarly journals Arvedi ESP for High-Quality Hot-Strip Production at Rizhao Steel

2016 ◽  
Vol 854 ◽  
pp. 207-214 ◽  
Author(s):  
Bernd Linzer ◽  
Andreas Jungbauer
Keyword(s):  
High Strength ◽  
Production Costs ◽  
High Quality ◽  
Export Markets ◽  
Operation Costs ◽  
Hot Strip ◽  
Steel Grades ◽  
Efficient Induction ◽  
Training And Support ◽  
Strip Production

With five Arvedi ESP lines, Rizhao Steel in China is now focusing on the highly attractive local and export markets for high-quality, thin-gauge strip products. The first lines began operations in 2015.High-strength but lightweight car bodies, ultra-thin structures paired with the highest tensile strength – and all at the lowest production costs. Innovative processes are required in order to fulfil the demands of the car and metals industries. With precise thermo-mechanical rolling and rigorous temperature guidance in the narrowest possible operations windows Arvedi ESP opens the door to producing demanding steel grades in the shortest implementation times and at reduced alloying costs. Low operation costs are also provided by efficient induction heating and the resulting energy savings.This paper presents the ESP plant setup of Rizhao Steel as well as the training and support program. Additionally the potentials of AHSS production with ESP will be described by referencing the results of the first ESP plant in operation since 2009 at Arvedi Steel, Italy, and the ESP plants of Rizhao steel.

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