硬化クローム工業 List of Products and Services

The "KR Series" features a unique "frosted texture standard" for hardened chrome cooling rolls, taking into account not only roughness but also gloss and transfer to resin. It allows for highly reproducible repeat processing. By freely combining various elements such as the type of blasting material and the amount of polishing, it creates surface shapes. Additionally, if you provide a target sample, we can conduct an investigation and propose surface shapes. 【Features】 ■ Highly reproducible repeat processing is possible ■ If you provide a target sample, we can conduct an investigation and propose surface shapes ■ Combines five elements to create a wide variety of surface shapes ■ Selection of polishing methods is also possible *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment
• Plating Equipment

"KR-BK" suppresses light reflection from the roll surface, which can cause noise in film thickness measurement and image inspection using optical systems. The volume resistivity of black ceramics is 1×10^4 Ω·cm or less, eliminating concerns about static electricity. Additionally, the thermal spray coating is porous, making it prone to liquid penetration and dirt accumulation; however, our original advanced sealing treatment, MS processing, ensures that the pores are 100% sealed. 【Features】 ■ Anti-reflection performance - Suppresses light reflection from the roll surface, which can cause noise in film thickness measurement and image inspection using optical systems. ■ Anti-static performance - The volume resistivity of black ceramics is 1×10^4 Ω·cm or less. - No concerns about static electricity. *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment

At Hard Chrome Industries, we have a dedicated mirror-finish factory and utilize optimal polishing methods derived from years of experience to finish our customers' rolls. We can achieve a maximum roughness of 30nm (0.03μm) or less. The roll precision is within 3μm for cylindricity, roundness, and waviness. Please feel free to consult us when you need our services. 【Features】 ■ Coatings that can be polished: plating, thermal spraying ■ Maximum roughness: below 30nm (0.03μm) ■ Roll precision - Cylindricity: below 3μm - Roundness: below 3μm - Waviness: below 3μm (actual values for Cr plating) *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• Other surface treatment equipment
• Plating Equipment

"KR-MS" is a treatment that seals microcracks found in hard chrome plating and porosity in thermal spray coatings. With improved anti-fouling properties, surface cleaning becomes easy. It can also be used in corrosive environments and with adhesive resins. Additionally, organic solvents such as IPA, ethyl acetate, and acetone can be used during maintenance. 【Features】 ■ Improved anti-fouling properties: Easy surface cleaning ■ Enhanced corrosion resistance: Usable in corrosive environments ■ Improved release properties: Usable with adhesive resins ■ Covers defects caused by microcracks and porosity ■ Can be processed into ultra-mirror and matte surfaces *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• Plating Equipment

"Hard Chrome Plating" is based on the patent "Method for Depositing Thick Metal Chrome" by our founder and has been developed over 70 years, leveraging experience in rapidly advancing application fields. The adhesion, wear resistance, hardness, and other properties of the plating are exceptionally superior, with minimal variation and consistent stability. It can be processed on almost all metal materials, including steel, copper, steel alloys, aluminum alloys, zinc alloys, and tungsten. 【Features】 ■ The adhesion, wear resistance, hardness, and other properties of the plating are exceptionally superior. ■ Unlike other platings, there is no intermediate plating. ■ The defects inherent in the material are magnified as they are, while the plating surface becomes beautiful. ■ Industrial chrome and nickel plating can be reprocessed multiple times. *For more details, please refer to the PDF document or feel free to contact us.

• Other machine elements
• Plating Equipment

The "Heat Pipe Cooling Roll" is a high-performance cooling roll that applies heat exchange technology and the principles of heat pipes to cover the shortcomings of traditional spiral structures. To achieve uniform cooling of the roll surface, it improves quality without cooling unevenness. It prevents condensation on the surface, thereby reducing resin change time. It solves issues such as "the occurrence of condensation (during operation and when stopped)" and "variability in roll surface temperature" found in spiral cooling rolls. 【Features】 ■ Uniform cooling of the roll surface ■ Improved quality without cooling unevenness ■ Increased production speed with high cooling performance ■ No condensation due to high temperatures at both ends *For more details, please refer to the PDF document or feel free to contact us.

• roller
• Other machine elements

We would like to introduce our pearlescent chrome plating 'KR-GP'. We pursue an optimal surface shape and finish for guide rolls, taking into account the trade-off relationship between "traction" and "wrinkles." This achieves a hemispherical micro-rough surface without edges and a micron-order fine surface without protrusions. 【Features】 ■ Surface shape optimized for web handling ■ No slip or wrinkle occurrence ■ Hemispherical micro-rough surface without edges ■ Micron-order fine surface without protrusions *For more details, please refer to the PDF document or feel free to contact us.

• Other surface treatment equipment
• roller
• Plating Equipment

Are you experiencing issues such as 'wrinkles occurring in the film,' 'the film curling,' or 'the roll shape being transferred onto the film'? Our company offers not only roll types and surface shapes but also transport simulations. We calculate based on your usage conditions such as film material, hugging angle, tension, and line angle to derive the most suitable guide roll. Please feel free to share your concerns from the production site with us. 【Features】 ■ Choose from three types: - Pipe-type aluminum guide roll: low cost, short delivery time - Rim-type aluminum guide roll: low inertia, lightweight, difficult to slip - Carbon roll: low deflection, lightweight, re-coatable ■ In addition to roll types and surface shapes, transport simulations are also possible. *For more details, please refer to the PDF document or feel free to contact us.

• roller
• Other machine elements

This is a product currently under development. We aim to start sales within 2023. Patent number 6511200 A revolutionary function has been added to the surface of the cooling roll for film casting. It eliminates the need for pinning wires and touch rolls, allowing the cooling roll to independently adsorb and cool the molten resin sheet. The entire surface, including the film cut sections, adheres uniformly across the full width of the roll surface. This reduces oligomer contamination on the film contact surface and both ends. There is no internal charging of the film, eliminating the need for internal charge removal in subsequent processes. By using a combination of JR force and assist (pinning wire) electrodes in the electrostatic adhesion casting method, it is possible to perform melt extrusion film molding of all types of thermoplastic resins using electrostatic adhesion methods, regardless of insulation resistance values. *For more details, please refer to the PDF document or feel free to contact us.

• roller

New long-length plating equipment finally introduced! Up to 6m! Materials such as carbon rolls, iron rolls, and aluminum rolls are welcome. Please feel free to consult with us. - Electrodeposited nickel plating for the base layer - Hard chrome plating Support for two types of plating Double plating with electrodeposited nickel for corrosion environment measures is also possible! *For details, please request materials or view the PDF data from the download.

• Resin processing machine

With the complete in-house production of sandblasting processing, it has become possible to achieve complex surface shapes. Processing is possible for outer diameters of φ1500, lengths of 5m, and weights of up to 5t. Please consult us if you have any issues with blasting processing. Main materials: - Alumina - Silica sand - Glass beads With complete automation, there are no concerns about feed marks or unevenness, achieving uniformity of the surface.

• Extrusion Machine

Our model name: [KR-BK] □ High anti-reflective performance (uniform matte finish) It suppresses light reflection from the roll surface, which can cause noise in optical system measurements and image processing inspections. The surface, free from appearance irregularities, enhances thickness measurement using laser methods to below sub-micron levels. □ High wear resistance and long lifespan Coating hardness: Hv740 It has high wear resistance against light loads similar to film and is less prone to scratching. □ Impermeability and dirt resistance Coated with our original advanced surface treatment, it prevents liquid penetration and dirt adhesion. □ Low friction coefficient and film sliding properties The matte section has uniform peak heights, creating a smooth texture with a pleasant touch. It features good sliding properties with films and excellent peelability. □ Can be processed on rolls currently in use (steel, aluminum).

• Resin processing machine

The "KR-MS Series" is a surface treatment that seals micro-cracks in chrome plating using inorganic materials. It maintains the characteristics of chrome plating while enhancing the following properties: ■ Stain resistance ■ Cleanability ■ Release properties Experience this advanced surface treatment, which has been adopted over 100 times in the film industry! 【We solve these problems!】 When using mirror rolls: ◎ Cleaning the surface is difficult due to the ultra-mirror finish... ◎ Poor film release due to the ultra-mirror finish... When using T-dies: ◎ Productivity is low due to issues with lip tip residue... ◎ Cleaning T-dies during resin or color changes is challenging... ◎ Corrosion occurs because chlorine-based resins are used... Additionally: ◎ Using Teflon (PTFE) rolls, but they wear out... ◎ Roll surfaces get dirty from ink or oligomers... ◎ Poor film release due to the use of adhesive resins... *For more detailed information, please view the PDF data from "Download." We look forward to your "Inquiry."

• plastic
• Extrusion Machine

This product is a heat pipe non-powder (NP) cooling roll for extrusion lamination. It features a completely powderless design and has a uniform surface temperature compared to spiral cooling rolls. It prevents condensation both during operation and when stopped, reducing time and material loss during startup. *The cooling heat pipe roll is a product developed in partnership with Sasakura Co., Ltd. 【Features】 ■ Completely powderless design ■ Uniform surface temperature ■ Condensation prevention (during operation and when stopped) ■ Reduction of startup loss (time and materials) ■ High cooling capacity *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Other machine elements
• roller

I will introduce the characteristics and application examples of representative materials. High-speed frame thermal spraying equipment is used to form coatings of cermet with high density and integrated strength. Moreover, the coatings exhibit excellent wear resistance, making them suitable for use in harsh environmental conditions. There are many representative materials, including alumina, which has properties of electrical insulation, chemical resistance, and wear resistance (HV800~1000). 【Characteristics and Application Examples (Excerpt)】 <Oxides> ■ Alumina, Titania: Electrical insulation, chemical resistance, wear resistance (HV800~1000), insulating substrates, relatively easy to polish ■ Chromia: Dense, high hardness (HV800~1000), chemical resistance, good wear resistance among oxide ceramics, shows low dynamic friction coefficient ■ Gray Alumina: A balanced thermal spray material with electrical insulation, wear resistance, and chemical resistance ■ Alumina Titania: Dense, mirror-like gloss, semiconductor, black, tape running surface of magnetic heads, various thread guides for textile machinery, heating plates *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Other machine elements

Introducing "Thermal Spray Rolls and Mirror/Special Matte Finishes." Our "High-Speed Frame Thermal Spray (HVOF)" allows for thermal spray coating and matte processing on the surface of laminated cooling rolls. Additionally, we can achieve a thermal spray mirror finish of 0.2S or less. As a result, these rolls exhibit superior wear resistance and corrosion resistance compared to conventional chrome-plated cooling rolls. [Examples of Work] ■ Thermal Spray WC-NiCr (HVOF) Cooling Roll 0.2S Super Mirror Finish ■ Thermal Spray Cr3C2-NiCr Series Cooling Roll Repeat Matte Type (for Process Paper and Urethane) *For more details, please refer to the PDF materials or feel free to contact us.

• Plating Equipment
• Other machine elements

We would like to introduce "Extrusion and Other Components." Our company offers a variety of extrusions, including the "Coating Roll," known for its high precision and quality, as well as the "Cameron Lower Blade Roll" for scratch removal grinding, and the "Herringbone Roll." We also have components suitable for resolving uneven cooling in cooling rolls. 【Product Lineup (Excerpt)】 ■ Coating Roll ■ Cameron Lower Blade Roll ■ Herringbone Roll ■ Screw for Extruder ■ Guide Roll *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Other machine elements

Introducing the "KR Type Variants and Super Mirror." We offer various cooling rolls with different surface treatments, starting with the "Standard Type," which is suitable for cakes and semi-fresh confections, as well as "Semi-Mirror Pocket Type," "Double Matte Type," and more. Additionally, our company provides a total service that includes design, roll manufacturing, and various surface treatments to meet our customers' needs. Reprocessing is possible multiple times, allowing you to use it as new each time. 【Various Surface Treatments for Cooling Rolls (Excerpt)】 ■ Standard Type (Post-treatment method) ■ Semi-Mirror Pocket Type (Post-treatment method) ■ Double Matte Type ■ AP Type (Intermediate treatment method) ■ Mirror Pocket ■ Matte Finish Plating *For more details, please refer to the PDF document or feel free to contact us.

• Plating Equipment
• Surface treatment contract service

"KR plating" is a special plating method developed by our company that demonstrates excellent performance for cooling rolls. In addition to the industrial chrome plating standards in JIS-certified factories, we have achieved our own unique standardization. This allows for smoother selection of specifications that meet customer needs, and we have received high praise from the plastics film and sheet industry. [Features] ■ Various roughness, surface shapes, and gloss levels are selectable. *For more details, please refer to the PDF materials or feel free to contact us.

• Plating Equipment
• Surface treatment contract service

"Super Mirror - Ultra Mirror Finish" Widely adopted for optical films Capable of providing an ultra mirror finish that leaves no polishing marks visible to the naked eye ■ Coatings that can be polished: Hardened chrome plating, thermal spray coatings (super hard, ceramics) ■ Maximum roughness: Roughness below 30nm (0.03μm) ■ Roll accuracy: Cylindricity below 3μm Roundness below 3μm Runout below 3μm *Performance values for hardened chrome plating Polishing is performed in a dedicated factory under controlled room temperature, allowing for the provision of high-quality and stable products. Polishing is possible not only for hardened chrome plating but also for thermal spray coatings. Examples: WC/Co, WC/NiCr, Al2O3, Al2O3/TiO2

• Extrusion Machine

Solving the problems of production sites! High-performance chrome plating [KR-MS] that can be expected to improve cleaning properties, reduce cleaning time, and decrease production losses! ■ Reduces friction resistance in the flow path, suppressing resin stagnation and preventing issues like burning ■ Suppresses discoloration of the T-die and mold due to heat ■ Stabilizes the fluidity of the resin, preventing the occurrence of eye mucus ■ Reduces the amount of resin adhesion in the flow path, shortening the time for color changes and resin exchanges Numerous successful implementations!

• Extrusion Machine

We provide overhaul services for various types of T-dies, including re-plating, ultra-mirror flat grinding, and sharp edge processing. We also offer repairs for coat hanger type T-dies, separate lip type T-dies, chalk bars, and lips only. We can accommodate small T-dies as well as large T-dies over 3000mm in width.

• Extrusion Machine

This is a special matte chrome plating that solves slip scratches during the production of optical films and other thin films. It effectively grips the fine matte surface irregularities while allowing air to escape, preventing scratches on the film during high-speed transport between the roll and the film. Features: - Excellent wear resistance due to chrome plating. - Processable regardless of roll material: carbon rolls, aluminum rolls, or iron rolls. - Uniform surface shape without protrusions. - Customizable roughness adjustments available. - Existing rolls can be re-plated. - Unlike grooved rolls, repairs and re-plating are easy, leading to longer-lasting rolls.

• Extrusion Machine

Our company offers a variety of matte finishes through shot blasting before and after plating. By applying a matte chrome plating, we provide release and slip properties for sheets and films. Additionally, we can customize the haze settings for sheets and films. We can suggest suitable options from hundreds of types of matte surfaces. 【Features】 - Provides release and slip properties for sheets and films - Customizable haze settings for sheets and films - Custom-made matte shapes available - Suggestions from hundreds of types of matte surfaces - Proposals can be made if you provide target samples *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
• Plating Equipment

【Features】 ■Uniform cooling of the roll surface ■No condensation occurring at the ends of the roll ■Increased production speed due to high cooling performance ■Awarded the 27th Mechanical Promotion Association Award ◇The "Heat Pipe Cooling Roll" has significantly improved cooling performance by incorporating a heat exchange function inside. ◇It enables uniform cooling of the roll surface without being affected by temperature variations in the cooling water. Additionally, the ends of the roll are maintained at a higher temperature than the cooling water, preventing condensation during operation. ◇It can be used for applications such as film and sheet manufacturing processes or as a replacement for conventional spiral cooling rolls. ■Cooling rolls (laminator machines, EC machines) ■Casting rolls *For more details, please refer to the PDF document or feel free to contact us. Laminators, lamination machines

• Cooling system
• others

We recommend "high-purity electroplated nickel" as the base for chrome plating. No gloss agents or additives are used, and due to the high purity of 99.9% nickel, it has good compatibility with chrome plating. Compared to chrome plating alone, corrosion resistance is dramatically improved. A special surface treatment is performed before plating, increasing adhesion with aluminum and iron. It can also be used for applications such as guide rolls (aluminum and iron) and cooling rolls. We recommend this to film manufacturers, extrusion machine manufacturers, and customers facing corrosion issues with rolls. 【Features】 ■ Industrial base nickel plating that requires reliability ■ Increased adhesion compared to electroless Ni plating ■ Improved corrosion resistance ■ Thicker plating for dimensional restoration is also possible *For more details, please feel free to contact us.

• Surface treatment contract service
• Plating Equipment

The "KR-MS Series" is a surface treatment that seals micro-cracks in chrome plating using inorganic materials. [For cooling rolls, temperature control rolls, and guide rolls] By preventing adhesion (oligomers), buildup (deposits) is reduced. This allows for a decrease in maintenance frequency, such as cleaning, which can increase productivity. The peelability of the film is also improved, leading to enhanced production speed. It is recommended for film and sheet manufacturers and those looking to increase production speed with adhesive resins. [For T-dies] It enables a reduction in cleaning time, a decrease in cleaning frequency, and a shortening of resin changeover time. Additionally, it offers increased corrosion resistance and prevents seizing! ★ Currently, we are giving away board samples to the first five applicants! If you are interested, please contact us. *For more details, please refer to the PDF materials or feel free to contact us.

• Other surface treatment equipment
• Processing Contract