scholarly journals MENINGKATKAN MUTU PRODUK PLASTIK DENGAN METODE TAGUCHI

2012 ◽  
Vol 13 (1) ◽  
pp. 93 ◽  
Author(s):  
Moh. Hartono
Keyword(s):  
Tensile Strength ◽  
Plastic Material ◽  
Design Method ◽  
Signal To Noise Ratio ◽  
Waste Utilization ◽  
Plastic Waste ◽  
Material Composition ◽  
Plastic Type ◽  
Experimental Design Method

Plastic waste is one type of waste that can not be broken down into the organic waste. Utilization of waste plastics to berecycled into plastic with better quality are rarely implemented. This study aims to utilize plastic waste in order to improve the quality of plastic products by Taguchi experimental design method that combines the pure plastic material composition of ore and recycled plastic (type PP/Polypropilena) with a certain pressure and temperature to produce a tensile strength of the plastic the better. From the experimental results, obtained by a combination of material composition of 30% recycled plastic, the pressure of 6.5 atm and a temperature of 180 °C. The composition obtained by the average tensile strength of 991.667 Newton, and Signal to Noise ratio (Larger is better) by 59, 9255. Statistically, tur ulang he combination was significantly affected by alpha at 0:05 Taguchi method through experiments with a matrix orthogonal array L8 (23).

scholarly journals Development Parameters of Pneumatic Slotted Sprayers for Treatment Potato Tubers

2019 ◽  
Vol 9 (2) ◽  
pp. 1200-1203
Keyword(s):  
Experimental Design ◽  
Design Method ◽  
Working Fluid ◽  
Potato Tubers ◽  
Flow Rates ◽  
Financial Costs ◽  
Experimental Design Method ◽  
Potato Planter ◽  
Spray Gun

This article presents the results of developing the design of the device and optimizing the parameters of the pneumatic slotted spray gun recommended for treating tubers with working fluids. In connection with the task, the flow rates of the working fluid by the sprayer were determined by the experimental design method and the speed characteristics of the airborne droplet for treating tubers in the coulters of a potato planter. It was found that the use of a device for processing tubers during the planting process contributes to the intensification of the cultivation of tubers while reducing financial costs and improving the quality of processing.

scholarly journals Studies of a Rotary–Centrifugal Grain Grinder Using a Multifactorial Experimental Design Method

2019 ◽  
Vol 11 (19) ◽  
pp. 5362 ◽  
Author(s):  
Marczuk ◽  
Blicharz-Kania ◽  
Savinykh ◽  
Isupov ◽  
Palichyn ◽  
...  
Keyword(s):  
Experimental Design ◽  
Design Method ◽  
Technical Condition ◽  
Technical Literature ◽  
Optimization Criteria ◽  
Impact Cutting ◽  
Experimental Design Method ◽  
Dust Fraction ◽  
Experimental Design Methodology

A scientific and technical literature review on machines designed to grind fodder grain revealed that the existing designs of grinding machines—those based on destruction by impact, cutting, or chipping—have various drawbacks. Some disadvantages include high metal and energy intensity, an uneven particle size distribution of the ground (crushed) product, a high percentage of dust fraction, the rapid wear of work tools (units), and heating of the product. To eliminate most of the identified shortcomings, the design of a rotary–centrifugal grain grinder is proposed in this paper. The optimization of the grinder’s working process was carried out using experimental design methodology. The following factors were studied: the grain material feed, rotor speed (rpm), opening of the separating surface, number of knives (blades) on the inner and outer rings, technical conditions of the knives (sharpened or unsharpened), and the presence of a special insert that is installed in the radial grooves of the distribution bowl. The optimization criteria were based on the amount of electricity consumed by and the performance of the rotary–centrifugal grain grinder. The quality of performance was quantified by the finished product, based on the percentage of particles larger than 3 mm in size. An analysis of the results of the multifactorial experiment allowed us to establish a relationship (interaction) between the factors and their influence on the optimization criteria, as well as to determine the most significant factors and to define further directions for the research of a centrifugal–rotary grain grinder. From our experimental results, we found that the grinder is underutilized in the selected range of factor variation. Furthermore, the number of knives installed at the second stage of the grinder, the gap (clearance) of the separating surface, and the technical condition of the knives are among the most important factors influencing the power consumption and the quality of the resulting product. A reduction in the number of knives at the first stage has a positive effect on all the selected optimization criteria; and by varying the factors in the selected range, it is possible to obtain a product corresponding to medium and coarse grinding.

scholarly journals A Theoretical and Experimental Research on the Influence of FDM Parameters on Tensile Strength and Hardness of Parts Made of Polylactic Acid

2021 ◽  
Vol 11 (4) ◽  
pp. 7458-7463
Author(s):  
D. G. Zisopol ◽  
I. Nae ◽  
A. I. Portoaca ◽  
I. Ramadan
Keyword(s):  
Tensile Strength ◽  
Rapid Prototyping ◽  
Polylactic Acid ◽  
Experimental Research ◽  
Fused Deposition Modeling ◽  
Plastic Material ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Plastic Parts

Fused Deposition Modeling (FDM) is a rapid prototyping method, widely used in the manufacture of plastic parts with complex geometric shapes. The quality of the parts manufactured by this process depends on the plastic material used and the FDM parameters. In this context, this paper will present the results of a theoretical and experimental research on how FDM parameters influence the tensile strength and hardness of samples made of PLA (Polylactic Acid).

scholarly journals Influence of process parameters on the weld quality of dissimilar Cu-Al magnetic pulse welded sheets

2016 ◽  
Vol 7 (1) ◽  
pp. 8 ◽  
Author(s):  
Wim Demonie ◽  
Koen Faes ◽  
Wim De Waele
Keyword(s):  
Design Method ◽  
Geometrical Parameters ◽  
Magnetic Pulse ◽  
Weld Quality ◽  
Influence Of Process Parameters ◽  
Free Length ◽  
Lap Shear ◽  
Experimental Design Method ◽  
Pulse Welding

Little is known about the influence of the main geometrical parameters (overlap, stand-off and free length) and the energy input on welds formed by electromagnetic pulse welding. The Taguchi experimental design method was applied for determining the underlying relations for dissimilar sheet welding of copper and aluminium. The weld quality was evaluated based on four output parameters: the weld length, the size of the interfacial layer, the lap shear strength and the thickness reduction of the flyer sheet. The influence of the overlap and free length showed to be non-negligible; this in contrast to the small amount of attention these parameters receive in other publications.

scholarly journals SYNTHESIS OF CHITOSAN-FILM COMPOSITE TiO2 USING SORBITOL AS PLASTICIZER

2017 ◽  
Vol 13 (1) ◽  
pp. 75
Author(s):  
Imelda Fajriati ◽  
Endaruji Sedyadi ◽  
Sudarlin Sudarlin
Keyword(s):  
Tensile Strength ◽  
Composite Film ◽  
Plastic Material ◽  
Anatase Phase ◽  
Homogeneous Solution ◽  
Chitosan Film ◽  
Film Composite ◽  
Chitosan Matrix ◽  
Uv Rays

<p>The synthesis of chitosan–TiO<sub>2</sub> film composite using sorbitol as plasticizer has been conducted. This research aims to develop environmental friendly plastic material which is safe for health due to the use of biodegradable chitosan - TiO<sub>2 </sub>that can block UV rays and therefore, maintain the quality of product from damage caused by UV rays. The anatase phase TiO<sub>2</sub> nanocrystal was synthesized in chitosan matrix at room temperature and aging process. The solution was then added and blended in sorbitol for 24 hours to obtain homogeneous solution. The composite film was formed by coating method on a plate substrate, followed by drying. The characterization of film composite by XRD, TEM and FTIR showed the forming of anatase phase TiO<sub>2</sub> nanocrystal that dispersed in chitosan matrix and formed the hydrogen bond. Meanwhile, from the physical properties characterization it was observed that the use of sorbitol as plasticizer had improved the plasticity tensile strength and elongation of the composite film. However, the excess sorbitol reduced the elasticity, tensile strength and elongation of the plastic. The best quality of plasticity obtained from film composite added by 3 % of sorbitol.</p>

scholarly journals PENINGKATAN PERAN AKTIF APARATUR DESA DAN PARTISIPASI MASYARAKAT DALAM UPAYA PELESTARIAN LINGKUNGAN MELALUI PELATIHAN PEMBUATAN ECOBRICKS

2019 ◽  
Vol 2 (2) ◽  
pp. 183
Author(s):  
Dini Sri Istiningdias ◽  
Dewi Noor Azijah ◽  
Gili Argenti
Keyword(s):  
Community Service ◽  
Negative Impact ◽  
Plastic Material ◽  
Plastic Waste ◽  
Government Agencies ◽  
Crucial Problem ◽  
Service Activity ◽  
Continuous Activities ◽  
The Impact

Kegiatan pengabdian ini mengacu kepada upaya untuk dapat mengurangi dampak dari sampah plastik yang tidak diolah dan mempengaruhi kualitas lingkungan di Desa Siluman Kabupaten Subang. Permasalahan sampah merupakan permasalahan krusial seperti sampah bermaterial plastik yang sangat sukar untuk terurai. Oleh sebab itu diperlukan upaya sinergis dari berbagai pihak baik lembaga pemerintah maupun masyarakat umum untuk dapat menuntaskan permasalahan sampah terutama yang disebabkan oleh sampah plastik. Sehingga dampak negatif dari sampah plastik tersebut dapat dikurangi bahkan dihentikan.Tujuan dari kegiatan pengabdian ini adalah untuk Menumbuhkan kesadaran tentang betapa pentingnya menjaga lingkungan dari penumpukan sampah terutama yang berbahan material plastik; Mendorong keterlibatan aparatur desa serta masyarakat untuk bersinergi dalam menjaga lingkungan, dan; Memotivasi masyarakat untuk terus melakukan inovasi dalam rangka mengurangi dampak sampah terutama yang berbahan material plastik.Seluruh kegiatan Pengabdian ini diselenggarakan selama 6 bulan, di Karawang. Melalui beberapa kegiatan yang berkesinambungan yaitu: (a). Identifikasi Permasalahan sampah melalui FGD, (b). Sosialisasi program Ecobriks,(c) Pelaksanaan simulasi pembuatan produk hasil Ecobriks. This article refers to efforts for reducing the impact of untreated plastic waste that affects the quality of the environment in Siluman Village, Subang Regency. The problem regarding rubbish is a crucial problem, especially with plastic material waste which is very difficult to decompose. Therefore, we need a synergistic effort from various parties, incliuding government agencies and the general public to be able to solve the rubbish problem, especially those caused by plastic waste. So that the negative impact of plastic waste can be reduced or even stopped.The purpose of this community service activity is to raise awareness about how important it is to protect the environment from the accumulation of rubbish, especially those made from plastic material; Encourage the involvement of village officials and the community to work together in protecting the environment, and; Motivate the community to continue the innovation in order to reduce the impact of rubbish, especially those made from plastic materials.The entire Community Service activity was around 6 months. Through several continuous activities, namely: (a). Rubbish problem identification through FGD, (b). Socialization of the Ecobrics program, (c) Implementation of the simulation of making Ecobriks products.

scholarly journals SYNTHESIS OF CHITOSAN-FILM COMPOSITE TiO2 USING SORBITOL AS PLASTICIZER

2017 ◽  
Vol 13 (1) ◽  
pp. 75
Author(s):  
Imelda Fajriati ◽  
Endaruji Sedyadi ◽  
Sudarlin Sudarlin
Keyword(s):  
Tensile Strength ◽  
Composite Film ◽  
Plastic Material ◽  
Anatase Phase ◽  
Homogeneous Solution ◽  
Chitosan Film ◽  
Film Composite ◽  
Chitosan Matrix ◽  
Uv Rays

<p>The synthesis of chitosan–TiO<sub>2</sub> film composite using sorbitol as plasticizer has been conducted. This research aims to develop environmental friendly plastic material which is safe for health due to the use of biodegradable chitosan - TiO<sub>2 </sub>that can block UV rays and therefore, maintain the quality of product from damage caused by UV rays. The anatase phase TiO<sub>2</sub> nanocrystal was synthesized in chitosan matrix at room temperature and aging process. The solution was then added and blended in sorbitol for 24 hours to obtain homogeneous solution. The composite film was formed by coating method on a plate substrate, followed by drying. The characterization of film composite by XRD, TEM and FTIR showed the forming of anatase phase TiO<sub>2</sub> nanocrystal that dispersed in chitosan matrix and formed the hydrogen bond. Meanwhile, from the physical properties characterization it was observed that the use of sorbitol as plasticizer had improved the plasticity tensile strength and elongation of the composite film. However, the excess sorbitol reduced the elasticity, tensile strength and elongation of the plastic. The best quality of plasticity obtained from film composite added by 3 % of sorbitol.</p>

scholarly journals FLUID FLOW BODIES FOR THE PULP AND PAPER INDUSTRY

2020 ◽  
pp. 519-527
Author(s):  
Yuriy Davidovich Alashkevich ◽  
Mikhail Semenovich Lur'e ◽  
Ol'ga Mikhaylovna Lur'e ◽  
Aleksandr Sergeyevich Frolov
Keyword(s):  
Strouhal Number ◽  
Numerical Study ◽  
Design Method ◽  
Signal To Noise Ratio ◽  
Paper Industry ◽  
Vortex Generator ◽  
Pulp And Paper ◽  
Operating Conditions ◽  
Flow Rates ◽  
Experimental Design Method

The question of the use of vortex flowmeters with different versions of the flow body (TO) under operating conditions on the technological lines of pulp and paper production is considered. It is shown that when using different TO in vortex flowmeters, an error occurs in the working range of speeds (flow rates). The observed error arises due to a change in the Strouhal number (Sh) and is associated with the measurement method. In this case, the Strouhal number begins to depend not only on the TO used as a vortex generator, but also on the flow velocity and the concentration of the fibrous suspension. As the main comparative factor for the investigated TOs, the force action on the sensitive element (flexible electrode) located inside the TO was taken. The study was carried out in several stages using numerical modeling and experimental design method. According to the results of a numerical study, the dependence of the Strouhal number (Sh) on the flow rate (V) and the concentration of the suspension (c) is presented. In a comparative analysis of the deviation of the Strouhal number from the average values, it was revealed that MOT No. 1 has a minimal effect on the concentration of the suspension in the working range of flow rates (± 0.5%). This circumstance makes it possible to verify and test flow meters with such maintenance in conventional pouring installations. The analysis of the maintenance with respect to the signal-to-noise ratio shows that the purest signal is generated by the cylindrical maintenance (maintenance No. 3), and maintenance No. 2 and No. 1 have noticeably large noise. The differences are explained by the absence on the surface of a cylindrical TO of extra protrusions, faces, which leads to a smoother flow of a suspension around its surface, as well as to a decrease in internal spurious noise.

Synergistic Analysis of Seawater Parameters’ Effect on Corrosion Rate of Austenitic Stainless Steels 304 and 316

2010 ◽  
Author(s):  
Mahmood Pakshir ◽  
Sanam Atashin ◽  
Arash Yazdani
Keyword(s):  
Corrosion Rate ◽  
Stainless Steels ◽  
Design Method ◽  
Austenitic Stainless Steels ◽  
Average Value ◽  
Experimental Design Method ◽  
Engineering Designs ◽  
Marine Engineering ◽  
The Individual

In this research the synergistic effect of environmental factors on corrosion rate of austenitic stainless steels 304 and 316 has been assessed. The behavior and resistance of these alloys are studied in aerated synthetic seawater, using potentiodynamic polarization scan. The salinity, velocity, pH and temperature are the considered parameters. To study the individual and interactive contribution percentage of parameters on changing the average value of corrosion rate, a quantitative full two-level factorial experimental design method is applied. Beside this quantitative analysis, qualitative analysis has been used to predict the variation direction. By means of these two analyses we can predict the magnitude and quality of each parameter’s effect. This research has a potential in prediction of alloys’ behavior, which is really valuable in marine engineering designs.

Study on Modification of Micro-Crystal Muscovite by Using of Amino Silane

2012 ◽  
Vol 430-432 ◽  
pp. 119-122 ◽  
Author(s):  
Jing Liu ◽  
Zi Wen Hu ◽  
Ming Gong Zhang
Keyword(s):  
Tensile Strength ◽  
Bending Strength ◽  
Design Method ◽  
Good Effect ◽  
Orthogonal Experimental Design ◽  
Organic Media ◽  
Organic Hybrid ◽  
Amino Silane ◽  
Powder Body ◽  
Experimental Design Method

This study took orthogonal experimental design method to study the use of amino-silane modified microcrystalline muscovite process, and by viscosity, modified powder / PVC composite mechanical testing to characterize the effects of the modification. The results showed that: modified microcrystalline muscovite powder could improve processing rheological property of the powder / organic hybrid system remarkably, the processing rheology has a good effect of further improving filling amount of the powder in organic media, and allows powder Body / PVC composite impact strength, bending strength and tensile strength to get a certain degree of improvement.

Sign in / Sign up

Export Citation Format

Share Document