三共理化学 List of Products and Services

What comes to mind when you hear the word "metal"? Perhaps you think of familiar ones like iron or stainless steel? There are various types of metals. Iron, stainless steel, aluminum, copper—these metals are widely used in everything from everyday items to industrial products. The reason these metals are frequently utilized is closely related to the properties each metal possesses. In this document, we will introduce the properties of different types of metals and their compatibility with polishing. [Contents] ■ What kind of metal is iron? Is it really a suitable material for polishing and processing? ■ What are the characteristics of stainless steel? It’s less prone to rust than other metals, but is it unsuitable for polishing? ■ Is aluminum difficult to polish? The advantages and disadvantages of using aluminum. ■ Introducing suitable polishing materials for polishing iron (carbon steel), stainless steel, and aluminum! ■ Understand the properties of metals to make polishing more comfortable! *For more details, please refer to the PDF document or feel free to contact us.

• Hand polishing and filing

What do you do when you have to make a lot of the same thing? The amount may vary. For example, if you need three, it’s quite reasonable to make them one by one. So, what should you do when you need 200? In such cases, "molds" come into play. This document introduces "molds," the key players in mass production. [Contents] ■ Are there benefits to using molds? Features and materials of molds ■ Is it true that polishing is necessary for mold manufacturing? ■ What are the methods for polishing molds? Why is the finishing polish done by hand? ■ Automating mold polishing is suitable for cost reduction ■ Let’s aim for efficient production by automating mold polishing! *For more details, please refer to the PDF document or feel free to contact us.

• Hand polishing and filing

The beauty of a brilliantly polished mirror finish is truly wonderful, isn't it? While the aesthetic of a mirror finish is exceptional, take a look around at the metal products around you. You might notice that there aren't as many items with a shiny mirror polish as you might think. For example, door knobs and elevator control panels are more textured than shiny. Window frames are not mirror finished either. Although mirror finishes are supposed to be glossy and visually appealing, do you know the two main reasons why these products do not adopt a mirror finish? Table of Contents 1. A brilliantly polished mirror finish is beautiful, yet it is not widely adopted!? What is the purpose of surface treatment for metals? 2. What is hairline finish? It actually has many advantages! Why is hairline processing done through polishing? 3. What polishing methods are good for hairline processing? What is the best way to achieve hairline finishes for metal and resin surface treatment? 4. For surface treatment of metals through polishing, trust Sankyo Chemical Co., Ltd.! 5. By performing surface treatment on metals and resins through polishing, new opportunities for value creation arise!

• Wafer processing/polishing equipment

Collection of Solutions for Grinding Issues: Problems related to grinding, such as mirror finishing, burr removal, inner diameter polishing, automation, cost reduction, environmental measures, and improvement of work environments (dust prevention), as well as quality enhancement (maintenance), are endless. Sankyo Rika Chemical Co., Ltd. can compare various grinding methods and propose the most suitable method for your processing objectives! We will introduce examples of how our grinding equipment and materials have solved customer issues. Case 1: We want to implement dust prevention measures for environmental protection and to reduce the burden on workers. Case 2: We want to eliminate variations in quality and work time caused by operators. Case 3: Our monthly electricity costs are high and are becoming a burden on management. We are considering multiple nozzles but are worried about the electricity costs. Case 4: We want to automate and simplify the burr removal for cross holes. Case 5: We were looking for a more precise grinding method using our own blasting machine. Case 6: We were searching for grinding equipment capable of achieving mirror finishes on inner and outer diameters. Our products consistently require high quality and polishing precision. Sankyo Rika Chemical Co., Ltd., as a specialist in grinding, offers the perfect grinding equipment and methods to solve the problems faced by those in the manufacturing industry.

• Other abrasives

Metal products do indeed last longer than plastic ones, but over time, they can become dull and unsightly. Good news for those who have such concerns! By taking care of metal products, you can restore their shine and make them look as good as new. Let's read this article and start polishing the metal products around us to make them shine! 【Table of Contents】 1. What is mirror finish? Can polishing restore the mirror finish of metal? 2. What materials can be mirror finished? Is it possible to achieve a mirror polish on iron and stainless steel? 3. What are the advantages and disadvantages of mirror finishing? What can be gained from mirror polishing? 4. Mirror polishing can restore the shine of iron and stainless steel! What is the method for achieving a successful mirror finish? 5. The shine of metal can be restored with polishing; let's regain that like-new brilliance! *For more details, please refer to the PDF document or feel free to contact us.

• Wafer processing/polishing equipment

Metal products certainly last longer than plastic ones, but over time, they can become dull and unsightly. For those of you who have this concern, here’s some good news! By taking care of metal products, you can restore their shine and make them look as good as new. Let's read this article and start polishing the metal items around you to make them shine! Table of Contents 1. What is mirror finishing? Can polishing restore the mirror finish of metal? 2. What can be subjected to mirror finishing? Is it possible to achieve a mirror polish on iron and stainless steel? 3. What are the advantages and disadvantages of mirror finishing? What can be gained from mirror polishing? 4. The shine of iron and stainless steel can be restored with mirror polishing! What is the method for achieving a successful mirror finish? 5. The shine of metal can be restored with polishing; let’s regain that like-new brilliance! 1. What is mirror finishing? Can polishing restore the mirror finish of metal? Are you familiar with the term "mirror finishing"? Mirror finishing refers to a state that is shiny and reflective, much like a mirror, as you might imagine. In this article, we will introduce the methods and subjects related to mirror finishing.

• Wafer processing/polishing equipment

Our uniquely developed elastic polishing material "Lappin" allows for polishing while sliding, making it possible to strip DLC coatings without damaging the workpiece. DLC coatings are used in various applications such as precision molds and cutting tools, but many people may struggle with coating removal during regeneration and reuse. Additionally, you may face issues where excessive removal leads to a rough surface. The thickness of DLC coatings is very thin, typically 1-2μm. Our elastic polishing material "Lappin" can strip the thickness of DLC coatings without damaging the target object due to its sliding polishing action. The hardness also varies depending on the hydrogen content during the film formation, so we will conduct work tests at our company. Please feel free to contact us.

• Other abrasives

Isn't it a common experience for anyone to find that a bicycle left outside has rusted without them noticing? Metal rusts, iron rusts easily, and stainless steel rusts less easily—these phenomena are often taken for granted, but are they really true? In this article, we will introduce the benefits of rust removal and methods to do so. Table of Contents 1. What is rust? What are the benefits of removing rust through polishing? 2. Before removing rust through polishing… Is it true that iron rusts easily and stainless steel does not? 3. What is the method for removing rust through polishing? A simple explanation of how to remove rust from iron and stainless steel. 4. For stubborn rust removal, polishing materials are recommended—Sankyo Rika's polishing materials are also ideal for rust removal. 5. After removing rust through polishing, be sure to prevent rust—let's restore the metal to a shiny state! 1. What is rust? What are the benefits of removing rust through polishing? Where does rust come from in the first place? For example, it is easy to imagine that leaving wet iron will cause it to rust. Common rust occurs when the conditions of oxygen and moisture are present. *For more details, please refer to the PDF document or feel free to contact us.*

• Other abrasives

Finally completed, while taking a breather and carefully looking at the processed item, many of you may have experienced finding jagged edges left behind. The true nature of those jagged edges is called "burr." If burrs are left, it doesn't look good, and you want it to be clean, right? "Burr removal" refers to the process of eliminating burrs, and it is a "critical process" that affects the precision and safety of the product. This time, I will explain about burr removal (the elimination of burrs). Table of Contents 1. Removing burrs through polishing: What are the burrs that occur in metals and resins? 2. Benefits and effects of burr removal through polishing 3. I want to remove burrs! Methods for burr removal through polishing and their advantages and disadvantages 4. How to efficiently remove burrs through polishing – leave burr removal to Sankyo Chemical 5. I want to remove burrs! In such cases, let's optimize the burr removal process with polishing equipment 1. Removing burrs through polishing: What are the burrs that occur in metals and resins? "Burr" refers to the jagged edges that occur during the processing of metals and resins. *For more details, please refer to the PDF document or feel free to contact us.

• Wafer processing/polishing equipment

Are you familiar with the processing method called "pear skin finish" (nashiji)? As the name suggests, it is a method of finishing the surface of metal to achieve a rough texture similar to that of a pear's skin. Even those who have never heard of the term "pear skin finish" will surely be surprised to learn that this processing technique is utilized in many metal products around us, such as doorknobs and cups. The widespread use of this technique is related to the fact that pear skin finishing offers numerous advantages and is a highly useful method for metal processing. In this article, we will explain the pear skin finish for metals. Table of Contents 1. What is pear skin finishing for metals? A perfect match with plating: pear skin finish for stainless steel 2. What are the advantages and disadvantages of pear skin finishing for stainless steel? Why apply pear skin finish to metals? 3. What methods are used to apply pear skin finish to metals? What is the best method for pear skin finishing stainless steel? 4. The blast equipment from Sankyo Rika is recommended for pear skin finishing metals – effective for stainless steel as well 5. Unlocking new possibilities for metals through pear skin finishing *For more details, please refer to the PDF document or feel free to contact us.

• Wafer processing/polishing equipment

Lappin is a special polishing material developed independently by Sankyo Rika Kagaku for blast polishing equipment. It is an elastic medium coated with fine abrasive particles, capable of removing fine burrs and surface coatings without damaging the underlying material. In 2021, new particle sizes #220, #320, #400, and #600 were added to the existing range of #1500 to #10000, providing a comprehensive lineup that can handle everything from "rough polishing" to "finishing" in blast processing! Lappin is compatible with various materials. We have received inquiries from customers in industries we had not previously anticipated, leading to the adoption of Lappin and blast equipment. Lappin has been well-received for achieving time savings and efficiency in mold processing. Unlike conventional media that are only used for finishing, Lappin, which also supports "rough polishing," should provide excellent polishing power. Customization of equipment to match customer workpieces and support for automated systems are also possible, so please feel free to contact us. We also encourage you to read the "Case Studies for Solving Polishing Problems" in our catalog materials.

• Wafer processing/polishing equipment

What kind of scene do you imagine when you hear about metal cutting processing? Some may be surprised that seemingly hard metals can be easily cut. Indeed, it is understandable that even hard metals can be cut with something harder. However, many of the tools used in cutting processing are also made of metal, just like the material being cut. In fact, it is possible to cut smoothly, like with a pencil, by applying a large force on a very small contact area between metals. Additionally, when thinking of metal cutting processing, one might instinctively imagine a rough finish, but in reality, cutting processing is a very convenient method that can accurately process small and complex shaped parts. This time, I will briefly explain metal cutting processing. Table of Contents 1. What is metal cutting processing? There are many types and benefits of cutting processing! 2. What are the types and methods of metal cutting processing? What kind of work is milling? 3. What are the advantages and disadvantages of metal cutting processing? 4. The finishing process of Sankyo Chemical is optimal for metals after cutting processing. 5. Summary - Learn about metal cutting processing and expand your processing capabilities. *For more details, please refer to the PDF document or feel free to contact us.*

• Other abrasives

Do you have any metal products that are covered in rust or dirt? When rust or dirt accumulates, they can quickly look old and worn out. However, in reality, metal can regain a shiny luster through polishing. In this article, we will briefly explain metal polishing and mirror finishing. Table of Contents 1. What is metal polishing? A mirror finish is necessary to restore the shiny luster of iron. 2. What types of metals can be polished? Can mirror polishing restore the shiny luster of iron? 3. How to restore the shiny luster of iron with mirror polishing? Tips for metal polishing (from surface preparation to glossing (mirror finish)). 4. Points to note for metal mirror finishing polishing! Let's restore the shiny luster of iron without any mistakes! 5. Polish the metal to a mirror finish and enjoy the revived shiny luster! 1. What is metal polishing? A mirror finish is necessary to restore the shiny luster of iron. There are several types of metal processing expressions similar to "metal polishing," including: - Cutting - Grinding - Polishing Here, we will explain one type of polishing finish, the mirror finish. *For more details, please refer to the related links or feel free to contact us.

• Other abrasives

Although metal polishing can refer to various materials such as iron, stainless steel, and aluminum, many people may be struggling with polishing methods, including resin polishing for plastics. We will introduce the most suitable polishing methods for both metal and resin. Sankyo Chemical Co., Ltd. is a comprehensive manufacturer of polishing solutions. We not only handle polishing materials and offer consultations on polishing methods, but we also provide a wide range of polishing equipment to meet the needs of automation in polishing. By transitioning from manual polishing to automated machine polishing, we achieve improved precision and work efficiency in the polishing process. Our polishing equipment can be customized to fit the specific materials and objectives of our customers. We will propose a dedicated polishing machine for you after providing samples and conducting polishing tests with our test equipment. We look forward to your inquiries regarding polishing. If you want to learn more about polishing materials, are struggling with methods for deburring and polishing iron, wish to fully automate your polishing process with polishing equipment, or want to reduce the man-hours in your current polishing process, Sankyo Chemical Co., Ltd. is a specialist in polishing that can address all of these needs. If you are interested in polishing or polishing equipment, please do not hesitate to contact us. We will propose polishing methods that suit your work and polishing style!

• Wafer processing/polishing equipment

In mold polishing, by using the special media Lappin, which boasts high polishability, we achieve a reduction in processing time! It is also ideal for removing tool marks and discharge machining marks from molds! The 'Lappin' media, which can grind and polish, is coated with fine abrasive grains on an elastic base material and is a media developed exclusively for blast polishing equipment by Sankyo Chemical. It allows for polishing without damaging the object being polished due to its sliding action. We offer a range of media that can accommodate all processes in mold polishing! 【Features】 ◆ Fine abrasive grains coated on an elastic base material ◆ Compatible with various materials ◆ Allows for removal of fine burrs and surface polishing without damaging the substrate 【About the blast equipment used】 ◆ Compatible with both blower-type and compressor-type systems ◆ Automation of the equipment and customization to fit the workpiece are possible *For more details, please refer to the PDF materials or feel free to contact us.

• Other abrasives

Our company has made it possible to perform blasting processing on parts that were previously considered difficult by utilizing the "negative pressure suction blast device." With the discharge-type blast machine, blasting treatment that previously required complete sealing in large cabinets for dust control can now be used in an open environment. Additionally, by adding optional units, we can manufacture machines ranging from manual to automatic according to your needs. We customize to suitable devices with our proposal capabilities that match your objectives and product content. We provide and suggest polishing methods and materials. 【System Usage Examples】 ◆ Spot Areas - Processing of pinpoint areas - Capable of handling various works in a spot manner ◆ Flat Surfaces - Film mat processing - Removal of surface contaminants, etc. *For more details, please refer to the PDF materials or feel free to contact us.

• Other machine tools

We propose a "tape polishing device" that is easier to manage compared to whetstone grinding, allowing anyone to achieve the same finish. You can select the width of the polishing film according to the product, which increases production efficiency and achieves low costs. The polishing film can be easily replaced, allowing for the desired surface roughness according to the purpose. 【Features】 ◆ Precise finishing is possible even for those without experience. ◆ Polishing while feeding the tape ensures a uniform finish with a constantly new abrasive surface. ◆ Precision finishing is possible for inner diameters, outer diameters, and elliptical shapes. ◆ Usable for both dry and wet processes, with a clean and compact processing environment. ◆ Customization of the polishing device is possible according to the purpose and product. *For more details, please refer to the PDF document or feel free to contact us.

• Wafer processing/polishing equipment

Precision grinding film abrasives - Powertrain finishing grinding delivery rate of 90%, a reliable track record! Mirror film focused on grinding performance and lapping film focused on finishing quality. We can also introduce the grinding machines used! We propose the optimal grinding method with grinding equipment + abrasives! Ideal for finishing grinding of automotive powertrains! Delivery rate of 90% to major automotive manufacturers. Different types can be used depending on the required precision! Also ideal for end-face polishing of optical fibers. We have established a process for dedicated lapping films and successfully achieved a cost reduction of 20% to 30%. Sankyo Rika Co., Ltd.'s film abrasive products enable precise and uniform surface finishing efficiently and easily. Fixed abrasive grinding has many advantages compared to free abrasive grinding. Easy process management → Reduced working time + Improved working environment. Mirror Film https://fujistar.com/introduce/mirro_film/ Lapping Film https://fujistar.com/introduce/lapping_film/

• Wafer processing/polishing equipment

Ideal for polishing and cleaning molds, as well as precision fine deburring of resin parts! Achieve energy savings and cost reduction with automated polishing that improves work efficiency! Blower-type blast polishing equipment. 1) A polishing device that simultaneously achieves "energy savings + cost reduction." The blower-type blast polishing equipment from Sankyo Rika Kogaku utilizes a Roots blower as the air source, achieving a 70% reduction in electricity costs compared to conventional compressor-type polishing equipment, along with a reduction in CO2 emissions. 2) The secret to improved work efficiency is "automation of polishing." Automation is possible for mold polishing, precise fine deburring of resin products, bulk polishing of small cylindrical items, and polishing of complex shapes! Whether you want to partially remove burrs or just deburr the work surface, the blower-type blast polishing equipment can achieve both. 3) Flexible customization to suit your work and polishing style. By adding new polishing functions such as "turntable type," "barrel type," or "multiple nozzles," you can reduce time and improve production efficiency. Various types of polishing materials can also be selected according to the application! *For more details, please refer to the PDF document or feel free to contact us.

• Wafer processing/polishing equipment

The "negative pressure suction blast" is a blasting method that performs internal cleaning of products by sucking in air from the open end and drawing abrasive materials through turbulent flow (tornado) from the other end. By connecting multiple workpieces, it enables processing of several items in the same time as a single unit. While compressor-type blasting machines required dust control measures, this method has no dust generation points, maintaining a clean and open working environment. Additionally, it is capable of processing long materials and can also use fine media. 【Features】 ◆ Reduction of processing time ◆ Prevention of dust generation, environmentally friendly and safe for humans ◆ Capability to process long materials ◆ Various media can be used ◆ Custom manufacturing from manual to automatic machines according to requirements using optional units *For more details, please refer to the PDF document or feel free to contact us.

• Other machine tools

Attention those struggling with internal surface polishing of cylinders! Using a blower blast combined with suction, it is possible to easily polish the interior surface! We can finish internal surface processing, burrs, and precision in a short time! ~ A groundbreaking solution that also holds new possibilities for hard film removal and internal groove burr removal ~ By reviewing the processing steps, it is possible to increase production efficiency! We will find and propose conditions that meet your requirements. ◆ Our headquarters factory in Saitama Prefecture is equipped with blasting machines and polishing machines, so on-site testing is also possible. ◆ The polishing materials are domestically produced, and we conduct quality control. ◆ We accept samples and test processing at any time. Since it uses a suction method, there is no attenuation of wind speed, and uniform negative pressure is applied throughout the entire length of the pipe, allowing for uniform polishing from entrance to exit. It can serve as an alternative to high-pressure washing and chemical cleaning, and there is no dust generation, which is a problem with injection-type blasting. By combining with various polishing media, it is possible to achieve both rough and high-precision surfaces.

• Other machine tools