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Rice husk is waste from rice milling which can pollute the environment. Current pollution problems are also in the form of plastic raw materials, to minimize plastic waste as an alternative by utilizing rice husks that are easily available in all regions in Indonesia because Indonesian staple food rice is made as a composite material natural. Through the utilization of rice husk waste as a natural composite raw material by the hot press process, this study aims to make small plate product molds. In this study using a static simulation method using mechanical and thermomechanical load variations and thermal distribution simulation on Solidwork with mold dimensions of 200x200x50 mm using Stainless Steel with variations in wall thickness of molds 10mm, 15mm, 20mm and using variations of 1000N, 2000N, 3000N to test the strength of mold thickness parameters. The results of static and thermal simulations conducted concluded that the most perfect mold thickness for thermomechanics is 10mm because it has a maximum value than other thickness variations, while the results of thermal simulation not significant of temperature. [ABSTRACT FROM AUTHOR]

Plastic waste is one of the problems that requires more attention. Apart from the large amount, plastic waste is also very difficult to decompose. One solution to solve this problem is to utilize plastic waste to be recycled into useful products, one of which is roof tiles. This research aims to see whether making plastic roof tiles is feasible as a business. Determination of feasibility analysis is carried out based on three aspects, namely technical aspects, financial aspects and marketing aspects. Based on the results of the analysis of the technical aspects, the selling price of the roof tile is Rp.5,288, which means that the price of plastic roof tiles is relatively cheaper than the price of clay tiles at Rp.6,000 Based on the financial aspects, the results show a positive NPV, IRR of 58%, PP for 1 year, BEP unit of 695,510 units and BEP price of Rp.365,882,218, which means that financially, this roof tile making business is quite promising. In marketing, Indonesia has several areas that often experience earthquakes, this area is an area with great potential to utilize plastic roof tiles because plastic roof tiles are more resistant to earthquakes or other natural disasters than soil tiles. Based on the three feasibility analyses, it can be said that the plastic tile business has the opportunity to be realized. [ABSTRACT FROM AUTHOR]

Multilayered packaging (MLP) waste is one of Indonesia's most plastic waste types. MLP have various composition, ranges from paper to plastics to metals, and short lifespan making their waste management became harder. Here we present an innovative method to recycle multilayered packaging waste as a paving block. This can assist in providing a recycling process options on reducing the negative impact of MLP waste to the environment. Shredded MLP waste is mixed with shredded polyethylene (PE) bag waste then the mixture is processed by the hot press at 240°C. Six formulas were used to mold the paving block, and the weight ratio of PE to MLP were varied from 0.33 to 3. Paving blocks were tested for their compression strength, according to ASTM D695, to investigate the effect of MLP addition on compressive properties and its compliance to the compressive requirement from SNI 03-0691-1996. According to ASTM D792 and SNI 03-0691-1996, the density and water absorption tests were conducted to support the investigation. MLP Increment increases the compression strength and influences the density. MLP can act as binder and filler, thus filling the void inside the paving block and increasing compression strength. From the obtained results it can be concluded that LDPE_MLP (75) paving block can follow the SNI minimum requirement, in term of compression strength (50.4 MPa) and water absorption (9.95%). [ABSTRACT FROM AUTHOR]

Plastic waste has become one of the critical environmental issues for all people on earth. Therefore, how to overcome that problem is become a highly demanding effort. In this research, we discuss about the recycling process of plastic waste using a simple method named hot press method. The plastic waste resources used are LOPE, PET, Melamine, and Bakelite. The outcome of this research is a paving block that expected to be complied to the National Standard of Indonesia. Sequence analysis addressed to the specimen are including SEM, FTIR, density test, compression test, and water absorbability test. The highest compression stress of the specimen is 24.13 Mpa for 15%wt of bakelite addition. The lightest density of the specimen is 1.0042 gram/cm3 that attributed to the specimen with 15%wt of bakelite addition. The resulted paving block in this research can be categorized as B type based on SNI 03-0691-1996 and SNI 03-3449-2002 standard. [ABSTRACT FROM AUTHOR]

The pulp and paper making industry is looking for new main raw material based on its physical, chemical and morphological characteristics. Currently in this industry, bagasse is the most useful raw material in pulp and paper industry. The objective of this study is to determine its suitability for pulping. Acacia auriculiformis is a fast-growing tree normally found in Indonesia and Australia. Acacia auriculiformis leaf contains of cellulose, hemi-cellulose and lignin. The range of lignin content in Acacia auriculiformis is 19%-20%. The hemi-cellulose and lignin contents was removed by soda-pulping process using different concentrations as followed; 3%, 5%, 10%, 15% and 20%. In order to determine the optimum pulping conditions for Acacia auriculiformis craft paper, several tests were conducted such as apparent density, tear test, tensile strength test and moisture absorption. It was found that the Acacia auriculiformis fibre treated with 3% sodium hydroxide (NaOH) solutions gave good tear test of the paper. For apparent density test, the best concentration of NaOH used for treating Acacia auriculiformis pulping is at 15%. From the study, the optimum concentration of NaOH in treating Acacia auriculiformis fibre is at 5% for best result in tensile strength. Hence, from the overall tests, 5% concentration of NaOH is the optimum value. From the findings, Acacia auriculiformis fibre has a potential to be used in paper making and food packaging industry. [ABSTRACT FROM AUTHOR]

In this paper discussed about research conducted on an automotive manufacturing company in Indonesia. This company produces spark plug. This research discusses the modification of loading and unloading machines so that it works automatically. Specifically, it is related to the process of loading and unloading the insulator on the marking and glaing machine in the insulator line. This automatic unloading loading machine is targeted to have a flexible and precise displacement movement capability to take the insulator from the tray and store it in the pallet. We design and program the Universal Robot UR3 arm robot to perform the insulator capture and storage process. With the robot arm, the unloading and loading machine can function automatically and integrated with the marking machine. [ABSTRACT FROM AUTHOR]

A manufacturer of brake system located in Jakarta, Indonesia, produces drum brakes and disk brakes for automobile as well as master cylinders and disc brakes for motorcycle. One of the products is 4-wheel drum brakes that are used in several car brands. There are 22 types of 4-wheel drum brake, which different for each type of car. Based on the collected data, non-conforming products of plate assembly on the CED Painting Line exceed the company's target of 13. 43% of the total monthly production. The high level of non-conforming products causes loss of time and money. This study aims to improve quality performance of the product using Six Sigma included phases of define, measure, analysis, improve, and control (DMAIC). There are 2 types of non-conforming most commonly found, i.e. bubble with percentage 82.03% and spots paint/orange peel with percentage 11.24%. In measure phase, DPMO of product is measured by the value of 54.330 with the sigma value of 3.103σ. after analysis phase, 12 solutions were proposed to solve problems. To assure continuity of the improvement, some control strategies were planned i.e. (a) reward and punishment system, (b) routine checking, (c) routine briefing, (d) conduct supplier evaluation regarding the quality, and (e) Implement Kaizen event. [ABSTRACT FROM AUTHOR]