A Review and Technology Analysis of Rolling Channel Sections in Rolling Mills in the CIS

Author(s):  
Serhiy Yershov ◽  
Serhiy Mel’nik ◽  
Еkaterina Kravchenko

Requirements for the quality of finished products is continuously increasing. It adducts to improve existing and develop of new schemes roll design. This paper contains the analysis of technological schemes for rolling channels, which are used in the CIS countries. Were described different ways of rolling channels and design features roughing and finishing passes. The authors were compared schemes of UPN-shaped profiles’ rolling on different Iron and Steel Works. The article describes methods for improving the roll design, proposed and implemented by domestic developers. These methods are based on the gained experiences of flange profiles’ rolling and developments of the modern world. It makes possible to reduce manufacturing costs and improve product quality of the channels.

2018 ◽  
Vol 170 ◽  
pp. 03011 ◽  
Author(s):  
Viktor Artiukh ◽  
Vladlen Mazur ◽  
Sergey Kargin ◽  
Nikolay Bushuev

Necessity and reasonability to use gapless connection between contact surfaces of lining straps of work rolls chocks and facing strips of housings (inner lining straps of back-up rolls chocks) to reduce dynamic horizontal forces during rolling and increase durability of equipment are considered. Technical solution is described on base of roughing reversing rolling stand of thick sheet rolling mill 3000 of PJSC ‘ILYICH iron and steel works’ (Mariupol city, Ukraine) which can be used on most heavy loaded sheet and tube rolling mills.


Author(s):  
Selamet Riadi ◽  
Shiro Esa Emerzet ◽  
Dani Prasetyo

Case heater & case blower is one of component product used to make car air conditioner. The function of case heater & case blower is as a holder for various car A/C components. Case heater & case blower is produced with a mould with the support of plastic injection machine. The process is to inject the material melt into the mould. When the product comes out of the machine, it checks the product to remove the burr on the product. Burr is a minor type of defect in the product, meaning the product can still be said OK but an additional process should be done to clean the product. Additional process is called burritori, which is a process to clean burr by using cutter. Allowed burr standard of 0.1 ~ 0.3 mm, above it must be done burritori process. With the company's slogan of QUALITY FIRST, the quality of product is very important. Therefore the burritory process can not be eliminated. With the burritory process, so have additional man power to do that activity. Actually unneeded additional man power to do burritori process if product out of mould in good condition that there is no burr on product. This study aims to improve product quality by addressing the product burr problem after being out of mold. So with the increased product quality that is the absence of burr, then the burritory process previously done no longer need to be done because the product comes out of the mold already good quality (no burr). In this research using PDCA method in solving existing problems.


2019 ◽  
Vol 8 (2) ◽  
pp. 83
Author(s):  
Nikita Karundeng ◽  
Johnny A. F. Kalangi ◽  
Olivia F. C. Walangitan

This study aims to determine whether Product Quality has an effect on Consumer Buying Interest. Speaking with quality and buying interest is certainly very tied to marketing. The essence of marketing according to Daryanto (2011) "marketing is a social and managerial process where individuals and groups get their needs and desires by creating, offering, and exchanging something of value with each other". This type of research is quantitative research with data analysis techniques using a skla likert research instrument, test validity, reliability, simple linear regression analysis and hypothesis testing. Based on the results of the study the influence of product quality is a variable that does not affect consumer buying interest. Then it can be concluded that product quality does not significantly influence consumer buying interest. If the quality of the product is good, there will be buying interest and consumers will feel satisfied. In this case, Pia Deisy's business must further improve product quality so that it will be more attractive and will have a good impact on Pia Deisy's home business.


2015 ◽  
Vol 756 ◽  
pp. 592-597 ◽  
Author(s):  
Alexander Sergeevich Karandaev ◽  
Vadim Rifhatovich Khramshin ◽  
Igor Yuryevich Andryushin ◽  
Andrew Grigoryevich Shubin ◽  
Boris Mikhailovich Loginov

The paper studies issues of improvement of the automatic gauge control system (AGCS) in the continuous hot-strip train. The factors influencing longitudinal strip gauge deviations have been classified. It has been proved that Davy McKee AGCS installed at the 2,000 mill of OJSC Magnitogorsk Iron and Steel Works (OAO MMK) does not provide control accuracy factors required at the light gauge strip rolling. The paper considers the functional chart of the improved AGCS realizing algorithm of the dynamic gauge correction. Experimental studies confirm that the developed chart helps to decrease longitudinal strip gauge deviations and, hence – to improve the quality of the products.


2011 ◽  
Vol 396-398 ◽  
pp. 2141-2144
Author(s):  
Tian Bo Liu ◽  
Fang Jun Luan ◽  
Li Mei Sun

Product evaluation is the basis for product decisions,and it is also the basis for the correct formulation of the product strategy. The product quality of rural residential buildings related to the pace of building new socialist countryside, to improve product quality, to establish product fuzzy logic-based evaluation model, and through case demonstrates the feasibility and value.


2020 ◽  
Vol 2 (2) ◽  
pp. 85
Author(s):  
Purnomo Purnomo ◽  
Dwi Sulistyaningsih ◽  
R. Ery Wibowo Agung

The availability of breadfruit is abundant in the village of Meteseh in RW. X Tembalang District, Semarang City. BAROKAH farmers group develops breadfruit chip business. This group of farmers utilizes the abundantly available breadfruit fruit in the Meteseh area to make breadfruit chips. BAROKAH has problems in terms of limited equipment to support product manufacturing, and limited knowledge and skills in the processing and diversification of breadfruit preparations. The purpose of this activity is to develop a business through diversification of BAROKAH breadfruit processed products so that this business and all the people involved are able to become economically independent communities. It also improved product quality, creative and innovative skills, skills in using appropriate technology in the cutting, draining, and packaging of breadfruit processed products. The method used is to improve product quality, creative and innovative skills through the use of appropriate technology in the cutting, draining, and packaging of processed breadfruit products. In addition, diversification of breadfruit processed products was also developed. The results show that the application of appropriate technology has been able to increase the capacity of chopping, and the durability of processed products from breadfruit. In addition, the quality of processed breadfruit products has increased.


2021 ◽  
Vol 2 (2) ◽  
pp. 1-12
Author(s):  
Nanda Hidayan Sono ◽  
Rizqiyatul Hasanah Hidayan

The tight competition in the business world requires every business actor to develop business with various kinds of competition in all fields, one of which is by processing human resources, because the quality of human resources greatly affects the quality of production. The production process is usually associated with productivity, if productivity increases it will also be followed by an increase in the performance of the company. Human Resources is one of the keys to the success of the company in order to increase competition and improve product quality. The method used in this study is a descriptive type of qualitative approach. The data collection technique was through observation, interviews and documentation, the data source being from UD Slamet Situbondo. The purpose of the study was to determine the effect of human resources on improving product quality. The results of the study indicate that the existence of quality possessed by human resources is very decisive for improving product quality in the future. For measuring product quality, it can be known through customer satisfaction, free from damage, the size of the durability of the product, product accuracy, and easy to operate and maintain. Meanwhile, from a marketing point of view, product quality is measured in terms of the buyer's perception of the quality of the product


2000 ◽  
Vol 6 (3) ◽  
pp. 227-234 ◽  
Author(s):  
N. Sanjuan ◽  
J. Benedito ◽  
G. Clemente ◽  
A. Mulet

Different blanching treatments were applied to sliced broccoli stems prior to dehydration in order to improve product quality. The pretreatments used were a conventional blanching in water at 100°C, and a stepwise blanching using different temperatures for the first step (50, 55, 60, 65 and 70°C). Five rehydration temperatures were used (25, 40, 55, 65 and 80 °C). Rehydration rate, chlorophyll content and texture of the rehydrated product were evaluated. Rehydration was modeled based on Fick's diffusion equation. A good agreement between the model and the experimental data was obtained when D eff and W e values were identified for each temperature (average percent variation 99.3). Samples stepwise blanched at 60 °C showed, on average, the lowest We and Ea values. Stepwise blanching at 60 and 65 °C and rehydration at 25, 40 and 55 °C were the combinations that gave the firmest product. Stepwise blanching at 50 °C and rehydration between 25 and 65 °C was the combination that preserved the highest chlorophyll content. From these results, it seems difficult to obtain firm samples with high chlorophyll content without any chemical additive.


2021 ◽  
Vol 939 (1) ◽  
pp. 012073
Author(s):  
M Agzamov ◽  
M Rakhmatov ◽  
M Agzamov ◽  
O Olimov ◽  
K Nosirov

Abstract This article presents the results of research on increasing fiber yield and improving product quality by using a new design of the vas deferens from the working chamber. It has been experimentally established that the most rational in terms of yield and quality of fiber, seeds and gin productivity is the position of the seed comb when the axes of its pegs are directed 5-10 degrees above the axis of the saw cylinder. The smallest value of complete hairiness of seeds after gin was obtained when installing a lamellar seed comb. Its average value was 13.8%. At the same time, the fiber yield was maximum - 34.66%, and the highest productivity - 8.5 kg of fiber per saw per hour. The influence of the distance between the ends of the seed comb pegs and grates at their values of 10, 20, 30 mm on the ginning indices was investigated. A distance of 20 mm is recognized as optimal taking into account all indicators - fiber yield, complete pubescence, productivity, quality of fiber and seeds. An experimental working chamber equipped with lamellar combs was made. It has been tested in the production conditions of a pilot cotton mill.


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