DWR DAWOORI CO.,LTD. RIVET SUPER FINISHING STONE

DWR Contents History Rivet - Why DWR Rivet? - Rivet's drawing - Sample picture of Rivet - Rivet Manufacturing Process of Rivet Super Finishing Stone - DWR Super Finishing Stone - Super Finishing Stone's Drawing - Specifications Questionnaire Of Super Finishing Stone's - Specifications Of Super Finishing Stone - Manufacturing process Of Super Finishing Stone 4. Quality And Environmental Certification 5. Contact Us

DWR History Jul.1984. Established Sejin Machinery Import Rivets, Super stone, Diamond grinding wheel dresser Jul.1987. Founded Taesung Industry Established Rivet manufacture factory, started localizing rivet Jun.1989. Increased rivet machine Succeeded localization of ingredients Jun.1992. Succeeded rivet machine localization Dec.1996. Merged Taesung Industry and Sejin Machine Jan.2000. Changed name to DAWOORI Mar.2000. Succeeded Honing Stone localization May.2000. Acquired ISO 9001 certification Jul. 2001. Exported to SKF France Apr.2002. Added 81 rivet machine Aug.2002. Acquired ISO 14001 certification Oct. 2002. Succeeded Super stone localization Jan.2003. Delivered Super stone WX4000 to FAG Changwon Factory May.2003. Delivered Super stone WG3000 to FAG Jeonju Factory

DWR Jun.2003. Delivered Super stone WG6000 to FAG Changwon Factory 2005. Added riveting machine equipment's (total 104) Annual production of rivets 350/ton 2010. Exported rivets to Japanese TODO (China) 2011. Exported Super stone to FAG (India) 2011. Added 8 rivet machine facilities (total 112) 2013. Dawoori Factory's expansion 2013. Exported rivets to ORS (Turkey)

DWR RIVET

DWR Why DWR Rivet? DWR rivets are the best quality product in terms of material, appearance and dimensions by strict material control and precision manufacturing management. We can supply our customer with DWR rivets, made out of automotive equipment and stable material, provide with competitive price. DWR rivets comply with 100% deadline for customer. The customer is provided free of charge upon request DWR rivet's Sample. DWR rivets have been recognized as a good quality product and exported to foreign companies such as SKF, TODO, ORS, etc. The research and development to improve the quality of DWR rivets are always ongoing in Research Institute. DWR rivets are a high quality with reasonable price than rivets of other offshore industry. DWR rivets respond immediately to the needs of professional customers, based on the long-accumulated technology and are committed to customer satisfaction.

DWR Rivet's drawing * 70 kinds of production. 규격 D1 D2 D3 DH H R I L L1 L2 L3 1.00x2.4 1.00 0.90 0.60 1.40 0.50 0.70 0.25 2.40 1.05 1.18x2.6 1.18 1.08 0.80 1.80 2.60 1.18x2.8 2.80 1.15 1.41x3.2 1.41 1.31 2.00 3.20 1.35 1.6x3.75 1.60 1.46 1.20 0.65 1.30 3.75 2.30 0.40 1.6x4.15 4.15 2.50 1.6x4.55 4.55 2.70 1.95x4.45 1.95 1.82 1.50 4.45 2.28x5.35 2.28 2.14 1.94 3.70 1.85 5.35 3.10 2.58x6.25 2.58 2.45 2.15 4.20 2.10 6.25 3.80 1.00x0.90x2.35 2.35 0.45 1.25 1.00x0.90x2.80 0.85 1.18x1.08x2.60 0.55 1.19x1.08x3.10 1.19 0.88 1.90 0.95 1.41x1.31x3.65 3.65 1.55 1.42x1.31x3.20 1.42 1.61x1.46x4.35 1.61 1.10 4.35 2.25 1.96x1.82x4.65 1.96 4.65 2.55 1.96x1.82x5.10 5.10 2.58x2.45x6.25 2.91x2.76x6.70 2.91 2.76 2.41 4.70 6.70 4.05 3.15x3.00x7.29 3.15 3.00 2.54 7.29 4.19 * 70 kinds of production.   * All products can be manufactured to order.

DWR Sample picture of Rivet

Raw material inspection DWR Manufacturing Process of Rivet 1 Raw material inspection Before stocking the raw materials, carry on appearance, diameter, and hardness check Form Appearance, item test often carried on for quality management Screening A primary and a secondary screening Managing the nonconforming accurately Surface treatment With oil and sawdust barrel Increasing the roughness and corrosion features

Deiling,anti-rust,drying DWR Manufacturing Process of Rivet 2 Cleaning Removing debris Maintaining cleanliness Deiling,anti-rust,drying After removal of the rivet's oil, deposition in anti-rust oil, Enhancing anti-rust function by drying Packaging With vacuum nitrogen packaging Completely blocking the oxygen and the rivets Inspection All requirement check by a three-dimensional measuring instrument Strict quality control

DWR Super Finishing Stone

DWR DWR Super Finishing Stone Super Finishing Stone is used for the final finishing product to make a very high quality product. Stone are generally produced tailored (shape, size) according to customer requirements. Artificial abrasive material #1000 to #8000 is used for product for Bearing. The abrasive grains is used by the state of the Japanese company F. F's grains are excellent and reliable products that Dawoori as well as several leading companies use. (import WA, GC, CA, A) The following products are used with the Super Finishing Stone. Super Finishing Stone is used to finish Taper Bearing, Taper Roller Bearing, Ball Bearing. (IR & OR) Finishing of the hydraulic cylinder and piston Mold Making Mold making is used in a number of products according to the bearing shaft of the rotary compressor and the pump and other needs.

DWR Dawoori's Super Finishing Stone High workability Long life Dawoori Succeeded development of Super Finishing Stone in 2002 and supplies it to the leading bearing company. Keep working on the sustainable development and let customer suggest the best product for the products quality specifications and the customized products if needed. Try to complete the Super Finishing Stone for better performance through stringent verification by the Stone Test Machine. Dawoori's Super Finishing Stone High workability Long life Good quality Cost reduction We will be the best partner, doing the best to produce better quality products to meet the customer's need

DWR Super Finishing Stone's Drawing Approved drawing

DWR Specifications Questionnaire Of Super Finishing Stone's

DWR Specifications Of Super Finishing Stone

DWR Specifications Of Super Finishing Stone 1 The first bond of Dawoori 2 The second bond of Dawoori 3 Picture of the third bond of Dawoori The bond acts as a skeleton which binds the abrasive grain, pore and different types of grinding wheel materials. Characteristics of the product of 1,2 and 3 bonds can be changed in accordance with the ratio. Therefore, we strictly control in accordance with the self-regulation of the production control of bond 4 Picture of pore system The roles of pore system are heat generation in the grinding process by securing a space between the abrasive grain and bond and preventing development of eyes dream of wheel and creating the surface of good quality. Dawoori imports pore system from Japanese Company S.

DWR Manufacturing process Of Super Finishing Stone1 Formulation Stone raw materials formulations of various kinds of stone The process of blending the precise amount of time and amount Naturally drying Pouring the frame after completion of formulations Periodically drying Completely drying Dryer more than 50 ℃ Drying for 10 to 15days Removing air Using a vacuum machine Removing air in the product

Cutting and processing DWR Manufacturing process Of Super Finishing Stone2 Heat Treatment In dried grinding wheel block in electric furnace. Annealing to the precise temperature control (between 900℃ to 1500℃) Hardness Precisely measured by durometer Used only qualified product Surface treatment According to the drawings of the finished product The surface treatment with sulfur or wax Cutting and processing Drawings in accordance with customer requirements Precisely cutting and processing

DWR Quality And Environmental Certification

DWR Dawoori Co., Ltd. Contact Us 723-60,Geolmi-ro, Juksan-myeon Anseong-si, Gyeonggi-do KOREA Tel. +82-31-676-8871~4 Fax. +82-31-676-6696 E-mail. dawoori@dawoori.com www.dawoori.com