ナラサキ産業 List of Products and Services

Narasaki Industries provides contract processing services that accommodate not only ceramics but also engineering plastics, metals, carbon/CFRP, and glass processing, as well as surface treatments such as coating and precision cleaning. This document explains the reasons why we can offer our specialty "short lead time ceramic processing service" in an easy-to-understand manner, covering: - The ceramics manufacturing process - Why we can respond to short lead times Additionally, we introduce advanced technologies such as "water laser processing technology," which differs from conventional CO2 and fiber thermal lasers, and "ceramics 3D printer technology," which enables the molding of hollow, lattice, and complex structures, along with processing examples. We also present various types and characteristics of "surface treatment technologies" and their processes. <For those with the following concerns> ◎ Looking for a processing partner for ceramics or special materials ◎ Need support for small quantities and short lead times ◎ Want to consult comprehensively from material selection to processing proposals *Please take this opportunity to obtain the handbook. You can view it immediately by downloading the catalog.

The selection of plate materials is diverse (AL, SUS, heat-resistant glass, SIC, AlN, composite materials). We will customize heaters to meet the needs of our customers.

Ultra-quality processing using short pulse and short wavelength lasers 【Features】 ○ Fine processing with small spots (less than φ20μm) is possible ○ Non-thermal processing through optical ablation is possible ○ Processing of various materials is possible ● For more details, please contact us or download the catalog.

[Narasaki Sangyo Co., Ltd. Comprehensive Catalog] We can provide a one-stop solution for various needs, from machinable ceramics, fine ceramics, engineering plastics, and special metals such as titanium and high melting point metals, to surface treatments like ion plating and thermal spraying. We offer a range of functional materials centered around ceramics, focusing on short delivery times, low costs, and high quality, from prototyping to mass production. In particular, we have received positive feedback from many customers for our high-precision processing of machinable ceramics and fine ceramics, as well as our ability to respond to short delivery times for ceramics, which are typically long-lead-time materials, through all machining processes. Based on the know-how cultivated in ceramics, we are engaged in various high-performance material contract processing. Please feel free to contact us. [Contents] - Machinable Ceramics - Fine Ceramics - Special Section on Fine Ceramics: "Silicon Nitride," "Silicon Carbide" - Heat Dissipation Ceramics - Special Metals - Engineering Plastics - Surface Treatment/Coating, etc. We have listed various handled materials and their physical properties. For more details, please contact us or download the PDF materials.

Compared to conventional polyimide molded products, heat resistance, oxygen plasma durability, outgassing characteristics, machinability, and water absorption have been significantly improved. Achieved a thermal deformation temperature of 470 degrees, the highest class among organic materials. ●Features - Ultra heat resistance (thermal deformation temperature 470°C) - Excellent oxygen plasma resistance - Low outgassing - Low impurity concentration - Low water absorption

Alumina ceramics (AL203) are fine ceramics with excellent electrical insulation, wear resistance, and chemical stability. As a fine ceramic, alumina is a difficult material to machine, but by utilizing our accumulated processing know-how, we can handle machining in various shapes, large, medium, and small. Additionally, alumina can accommodate various applications such as improving surface roughness through polishing and surface treatments. Our standard material is 99.5% alumina, but we also offer high-purity alumina, low-purity economical alumina, heat-dissipating alumina, plasma-resistant alumina, porous alumina, and various other options. [Features] ■ Good machinability among fine ceramics, providing advantages in delivery times ■ Can be offered at a low cost among fine ceramics ■ Balanced properties in all aspects, including high strength, insulation, heat resistance, wear resistance, and corrosion resistance, which are characteristics of ceramics ■ Electrical insulation and heat resistance (up to 1500°C) [Examples of Applications] ■ Precision parts (vacuum chucks, insulation rings, guides, etc.) ■ Flat plates (XY tables, air sliders, etc.) *For more details, please refer to the PDF document or feel free to contact us.

"PBI (SCM7000)" is a super engineering plastic that excels in high heat resistance and high mechanical strength. The high heat-resistant resin PBI = polybenzimidazole demonstrates its excellent heat resistance and high strength, providing outstanding performance against various concerns in manufacturing processes, such as high-temperature environments, corrosive environments like process gases, environments that are sensitive to impurities, and areas where mechanical strength is required due to wear concerns. In particular, it outperforms conventional polyimide materials widely used in the harsh environments of semiconductor and liquid crystal manufacturing processes. Although it is considered a difficult-to-machine material due to its processability and handling challenges, our company leverages its extensive track record and processing examples to address customer issues. 【Features】 ■ High heat resistance and high mechanical strength ■ Heat resistance up to 435℃ ■ Bending strength approximately twice that of PI, suitable for mass production with injection molding grades ■ Good resistance to oxygen plasma 【Examples of Applications】 ■ Holding parts for wafers/glass in etching equipment ■ Sliding and vacuum components ■ Wear-resistant parts for glass transport systems *For more details, please refer to the PDF document or feel free to contact us.

Aluminum nitride (AlN) is a ceramic that excels in high-temperature characteristics. It boasts an extremely high thermal conductivity, comparable to silicon carbide among fine ceramics, with a thermal conductivity of 170 W. Its coefficient of thermal expansion is close to that of silicon, and it also has excellent corrosion resistance, making it widely used as components and substrates for semiconductor manufacturing equipment. Additionally, due to its thermal properties, it is suitable for heater applications. It is also used as a heater tool for semiconductor back-end bonding, which requires strict flatness, parallelism, and surface roughness. Our company has handled numerous tools in the past and possesses a wealth of experience and processing know-how. 【Features】 - High thermal conductivity and radiation among fine ceramics - High electrical insulation and excellent corrosion resistance - High-cost material among ceramics - Possesses high strength, high thermal conductivity, high Young's modulus, and low expansion rate 【Examples of Applications】 - Heat sinks, insulating glass, protective tubes, heat dissipation bases, etc. - Electrical components requiring heat dissipation and insulation, etc. *For more details, please refer to the PDF document or feel free to contact us.

Silicon nitride (Si3N4) is a ceramic with excellent heat resistance and hardness. As a fine ceramic, silicon nitride is a difficult material to machine, but it is particularly hard and challenging to process. Depending on the shape, we can offer short lead times for machined parts from sintered materials, so please feel free to contact us. Silicon nitride is highly resistant to thermal shock, maintains strength at high temperatures, and has a low coefficient of thermal expansion, making it suitable for use in high-stress environments. It is also widely used as wear-resistant and sliding components. **Features** - Excellent thermal shock resistance among fine ceramics - Maintains strength at high temperatures, with high toughness and excellent wear resistance - Considered expensive in terms of material costs and is a difficult material to machine among fine ceramics - Superior strength, thermal shock resistance, and wear resistance at high temperatures **Examples of Applications** - Hot guides, rollers, positioning pins, die-cast sleeves, etc. - Locations and rings for electric welding, etc. - Positioning components for XY tables, etc. - Crucibles for aluminum molten metal *For more details, please refer to the PDF document or feel free to contact us.*

The heat-dissipating ceramic "N-9H," developed for heat sinks, has a density of over 99% alumina. By using a special manufacturing process to minimize the residual sintering binder, it achieves an ultra-dense sintered body that maximizes the heat dissipation properties unique to alumina. Its heat dissipation capability makes it ideal for heat sinks, and it is actively used in various fields. *For more details, please refer to the technical documentation "Heat Dissipating Ceramic N-9H - Ideal for Heat Sinks." [Features] 1. The ceramics produced using a unique method have high thermal radiation characteristics (emissivity), achieving excellent thermal management. 2. Ideal for preventing unwanted radiation and noise (also serves as an insulating sheet). 3. Simplification of shapes, miniaturization, and cost reduction are realized. 4. Custom shapes can also be accommodated (capable of supporting from prototyping to mass production). 5. Optimal as a heat dissipation plate for LEDs and lamps.

"Shaparl HI M-soft" is a high-performance machinable ceramic with excellent thermal conductivity. It has a very high thermal conductivity among machinable ceramics and also boasts high strength. Its thermal conductivity is approximately 90W due to the inclusion of aluminum nitride, and it has excellent machinability as a composite material with BN. While it is easy to machine, its high strength places this product in the relatively difficult-to-machine category among machinable ceramics. Since it is only available through machining from plate material, there are shapes that cannot be processed. [Features] - Excellent machinability - Excellent vacuum properties - High thermal conductivity (90W/m·K) - High strength - Low thermal expansion rate - Excellent electrical insulation - Low dielectric constant and dielectric loss - Composite of AIN and BN [Examples of Applications] - Vacuum components - Various electrical components requiring heat dissipation and insulation - Jigs requiring low thermal expansion rate - Heat sinks *For more details, please refer to the PDF document or feel free to contact us.

"Hotobear" is a machinable ceramic with excellent electrical insulation and thermal insulation properties. It has versatility and outstanding performance, making it suitable for a wide range of processing from simple shapes to complex shapes, fine and high-precision machining. Its machinability also provides delivery advantages, making it effective for small-scale prototypes starting from one piece to urgent projects. In the case of fine ceramics, which are difficult to machine, there are many situations where they are over-specified, and our product is well-suited as an alternative in such cases. Due to its heat resistance and extremely low thermal conductivity, it is also used as an insulating material in high-temperature environments where conventional insulation materials cannot be applied. Moreover, the processing precision that cannot be achieved with conventional insulation materials is made possible with ceramics, allowing our product to be utilized as a high-precision insulating material. [Features] - Fast processing speed due to machinability, providing delivery advantages - Low cost - Low thermal conductivity with insulating properties - Excellent electrical insulation - Superior thermal insulation [Application Examples] - Insulating materials for semiconductor manufacturing equipment - Insulating components - Vacuum device components - Heat treatment jigs *For more details, please refer to the PDF document or feel free to contact us.

Silicon carbide (SiC) is a material that excels in heat resistance among fine ceramics and maintains its strength even at high temperatures. As a fine ceramic, silicon carbide is a difficult-to-machine material, but it is particularly hard and challenging to process. Depending on the shape, it is possible to respond to short delivery times through machining from pre-fired materials, so please feel free to inquire. Silicon carbide maintains its strength even at high temperatures of 1400°C, is not an insulator but a semiconductor, and due to its high corrosion resistance, it can be used in harsh environments. 【Features】 ■ Excellent corrosion resistance among fine ceramics ■ Hard and excellent in wear resistance and sliding among fine ceramics ■ High thermal conductivity, with some grades having conductivity equivalent to aluminum nitride ■ Excellent properties as a high-temperature structural material and corrosion-resistant material ■ High creep resistance and oxidation resistance 【Examples of Applications】 ■ Plates, chucks, base plates, and fingers for semiconductor manufacturing equipment ■ Wear-resistant nozzles and mechanical seals ■ Corrosion-resistant reaction tubes and acid treatment jigs *For more details, please refer to the PDF document or feel free to contact us.

Zirconia (ZrO2) is a ceramic with excellent mechanical strength and wear resistance. As a fine ceramic, zirconia is a difficult material to machine, but our company can accommodate various shapes through precision and fine processing. We also offer various types such as partially stabilized zirconia, stabilized zirconia, and conductive zirconia, as well as black zirconia. Due to its unstable crystal structure, zirconia has limited use at high temperatures. Therefore, we also handle zirconia suitable for specific applications, such as stabilized zirconia with added Y2O3. [Features] - Among fine ceramics, it has the highest toughness, making it less prone to cracking and chipping. - Its high thermal expansion rate is close to that of metals, allowing for consideration of combined use. - Its low thermal conductivity provides expected insulation effects. - The crystal structure changes with temperature fluctuations, making it unstable and prone to degradation. - Its high temperature and high fracture toughness are 3 to 4 times that of conventional ceramics. - It excels in insulation effects. [Examples of Applications] - Insulation blocks, guide spacers, grinding balls, nozzles, etc. - Fitting parts with metals, pump components, reaction tubes, etc. *For more details, please refer to the PDF document or feel free to contact us.

At Narasaki Sangyo, we are currently offering a document titled "Introduction to Ceramics Vol. 3 - About Processing Accuracy and Shapes," which introduces standard processing accuracy for ceramics, reference values for our processing accuracy, and actual processing examples! The document includes photos showcasing various processing examples such as flat grinding and mirror finishing, blast treatment on alumina, round blade processing on zirconia, and screw shape processing on macor. It also introduces the processing machines used. Along with "Vol. 1 What Materials Are Available?" and "Vol. 2 Four Keywords for Material Selection," this serves as a useful introductory resource for ceramic processing. [Contents] - Various physical properties of ceramics - About processing accuracy - Dimensional tolerances - Flatness and parallelism - Surface roughness - Fine holes/grooves - Examples of special shapes *For more details, please refer to the PDF document or feel free to contact us.

The high-performance plastic material "PLAVIS" possesses top-class heat resistance, low friction, wear resistance, electrical insulation, mechanical properties, radiation resistance, chemical resistance, and low gas emission characteristics among plastic materials. It achieves excellent machinability at a low cost. 【Features】 ■ It has heat resistance that allows stable use from extremely low temperatures to ultra-high temperature ranges. ■ The tensile strength and flexural elasticity in relation to temperature are exceptionally high. 　→ Suitable for products that require high-temperature environments and wear resistance. ■ When used under high-temperature vacuum conditions, there is almost no gas emission. ■ It shows high limit PV values and low friction coefficients across a wide temperature range. ■ Particle generation is extremely low under various driving conditions. ■ It exhibits excellent electrical insulation even under harsh conditions of a wide temperature range and high radiation. ■ Even after long-term exposure to organic solvents across a wide temperature range, there is almost no impact on morphological stability and mechanical properties. ■ It can be applied to metal cutting technology, allowing relatively easy machining of precision parts. *For more details, please contact us or refer to the catalog.

We would like to introduce our "Ceramics Adhesive Bonding Products." These are components that bond ceramics or high-hardness materials only in areas where wear resistance is needed, achieving cost reductions and improved productivity. If you have any issues in your production process, please feel free to consult us. 【Features】 ■ Restoration of parts supplied by customers is possible ■ Parts scheduled for disposal can also be reused ■ More cost-effective than all-ceramic components ■ Many applications in electronic component wear parts and downstream transport devices *For more details, please download the PDF or feel free to contact us.

We would like to introduce our product, "GD Coat." It enables surface modification for almost all materials. By applying a base treatment, its performance can be further enhanced. Additionally, due to its monolayer structure created by a chemical reaction layer, it exhibits excellent strength and durability. 【Features】 ■ Thin film fluorine-based coating ■ Heat resistance up to 500℃ ■ Can be applied to precision parts such as molds ■ Coating can be customized with recipes tailored to the base material *For more details, please download the PDF or feel free to contact us.