愛中理化工業 List of Products and Services

We would like to introduce the "cutting equipment" that we possess. We have NC lathes, machining centers, apron-type and hanger-type shot blasters, as well as drill presses, tappers, single-purpose machines, and automatic deburring machines. By combining these with parts feeders, we can achieve labor-saving and cost reduction through automated lines. Please feel free to contact us if you have any requests. 【Equipment Owned】 ■ NC Lathe ■ Machining Center ■ Shot Blaster (Apron-type, Hanger-type) ■ Drill Press, Tapper, Single-purpose Machine, Automatic Deburring Machine *For more details, please feel free to contact us.

• lathe
• Machining Center
• Drill press

We would like to introduce the "inspection equipment" that we have. We possess an "X-ray inspection machine" that can check the condition of air pockets in die-cast parts, as well as a "three-dimensional measuring machine" that measures dimensions, angles, surface shapes, and 3D shapes by pressing a probe, known as a contact sensor, against the object. Additionally, we have a "melt issuing analysis device" that can analyze materials rescued from the furnace, not just the mill sheets from material manufacturers, to confirm whether they meet specifications. 【Equipment Owned】 ■ X-ray inspection machine ■ Three-dimensional measuring machine ■ Melt issuing analysis device *For more details, please feel free to contact us.

• X-ray inspection equipment
• 3D measuring device
• Analytical Equipment and Devices

We would like to introduce the "die casting machines" that we own. We have "cold chamber die casting machines" that primarily produce ADC12, with capacities ranging from 125t to 250t, and can also handle special materials such as ZA27 and NA8. Additionally, we have "hot chamber die casting machines" that primarily produce ZDC2, with capacities ranging from 15t to 250t. We have extensive experience in producing automotive seat belt components, door mirrors, key-related parts, bearings, motorcycle-related products, everyday household items, gas-related products, musical instruments, and more. 【Features】 ■ Capable of mass production with 24-hour operation ■ Comprehensive services from mold manufacturing to processing and surface treatment *For more details, please feel free to contact us.

• Other processing machines

We would like to introduce our "Automatic Centrifugal Barrel Polisher." It can be used for polishing die-cast products and metal products, as well as for the appearance parts of drills, eyeglass frames, artificial bones, automobiles, motorcycles, etc., including polishing and deburring before plating. If you are considering automating the buffing process, please provide us with samples, and you can try it out to check the results. 【Features】 ■ Finishing can be achieved with consistent quality without the need for skilled craftsmanship. ■ Can be utilized for polishing and deburring before plating. *For more details, please feel free to contact us.

• Wafer processing/polishing equipment

"Zinc plating" involves immersing the item to be plated in a plating bath containing dissolved zinc, allowing a zinc plating film to coat the item. It is possible to plate materials with relatively complex shapes with a nearly uniform thickness. It is widely used for decorative and functional plating, and black zinc plating is also available. Due to its barrel-type process, it excels in handling large quantities of mass-produced items, but please feel free to consult us even for small quantities. 【Features】 ■ Capable of plating materials with relatively complex shapes with a nearly uniform thickness ■ Black zinc plating is also available ■ Widely used for decorative and functional plating *For more details, please feel free to contact us.

• Processing Contract

"Copper-nickel-chrome" is a processing procedure where nickel plating is applied over copper plating, and chrome plating is applied over nickel chrome. Our nickel plating uses double nickel, which includes semi-gloss nickel and glossy nickel. If you provide a sample, we can do a trial (TRY) and you can check the results. We specialize in die-cast (ZDC2 products) and are adept at both aesthetic and functional parts, and we can accommodate detailed requests such as wanting nickel plating. 【Features】 ■ Adoption of double nickel with semi-gloss nickel and glossy nickel ■ Improved corrosion resistance ■ Ability to accommodate detailed requests such as wanting nickel plating ■ Fully automated process *For more details, please feel free to contact us.

• Processing Contract

This document introduces a case study that addresses challenges in black chrome plating of automotive parts. The process involves multiple steps: casting → machining → feathering → plating, resulting in a long production cycle. If there is a failure in the final process, the product is discarded, leading to significant loss costs and long lead times in logistics. After improvements were made by creating additional jigs for the electrode rods, the defect rate for sticking was reduced from 30% to 0%. [Contents] ■ Before Improvement ■ Proposed Solutions ■ Customer Feedback and Points of Satisfaction *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This document introduces a case study on the improvement of automotive parts molds. Abnormalities could not be detected visually, and issues were discovered after the products were manufactured. By utilizing a thermal camera to identify temperature differences, we were able to visualize the data, which provided reassurance and allowed us to deliver stable quality to our customers. [Contents] ■ Proposed Solutions *For more details, please refer to the PDF document or feel free to contact us.*

• Processing Contract

This document introduces a case study that addresses challenges in the shot blasting process for zinc automotive parts. In the hanger-type shot blasting, shot pellets are sprayed from above, and they hit the design surface, causing pellets with a diameter of φ0.40 or larger to get stuck in the recesses of the text area, which has a width of 0.45. Since the areas where the pellets get stuck are not consistent, it was necessary to check the entire text area. By creating and modifying a jig that allows for shot blasting directed downward onto the design surface, we resolved the issue of pellet blockage on the design surface. [Contents] ■ Improvement details ■ Customer feedback and points of satisfaction *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This document introduces a case of improvement in the mold structure of aluminum automotive parts. Before the improvement, if the slide of the mold did not fully descend to the correct position, interference occurred between the slide component and the product when ejecting the product from the mold, resulting in product chipping. Additionally, the shape of the fixed bolt for the slide stopper was set as an elongated hole, which caused positional misalignment. By reviewing the shape of the fixed bolt for the slide stopper, the workability and reproducibility of the installation were improved, eliminating positional misalignment. [Contents] ■ Before Improvement ■ After Improvement *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This document introduces a case study on the improvement of the mold structure for aluminum automotive parts. Before the improvement, the slide structure was not stepped, which led to a decline in mold quality and caused the slide to retract under injection pressure due to insufficient holding force. After revising the specifications to a stepped slide structure, the holding force of the slide was enhanced, successfully reducing slide retraction caused by injection pressure. [Contents] ■ Before Improvement ■ After Improvement *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This document introduces a case study that addresses the challenges of machining deep holes in automotive parts. The background of the request was that during machining, when drilling deep holes, chips were getting stuck at the back, causing issues during assembly. By adding a coolant-through spindle to the machining process and injecting oil from the tool during drilling, we improved the chip removal during deep hole machining. [Contents] - Examples of machining products (aluminum products) - Background of the request - Proposed solutions - Customer feedback and points of satisfaction *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This document introduces a case study that addresses the challenges of machining automotive parts. The background of the request was that the machining time was long due to the machining process, leading to increased costs. To address this, we implemented an index type of machining that rotates the fixture base, allowing for all machining to be done in one chucking. This resulted in a reduction of time for workpiece loading and unloading. [Contents] ■ Background of the request ■ Proposed solutions ■ Customer feedback and points of satisfaction *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

This document includes examples of solutions to issues such as zinc-chromate plated automotive parts. We introduce "machined automotive parts" that have achieved a reduction in processing time through machining based on index specifications, as well as "machined deep-hole automotive parts" that have resolved chip issues. It also features customer testimonials and points of satisfaction, making it an easy-to-reference book. We encourage you to read it. [Contents] ■ Zinc-chromate plated automotive parts ■ Machined automotive parts ■ Machined deep-hole automotive parts *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts

This document includes examples of solutions to challenges in the trimming process of aluminum automotive parts. We introduce the "mold for aluminum automotive parts" with improved slide retention and the "shot blasting process for zinc automotive parts" that resolves shot ball issues. It is presented with images for easy understanding, making it a useful reference. We encourage you to read it. [Contents] ■ Trimming process for aluminum automotive parts ■ Mold for aluminum automotive parts ■ Shot blasting process for zinc automotive parts ■ Improvement of automotive parts molds ■ Black chrome plating for automotive parts *For more details, please refer to the PDF document or feel free to contact us.

• Other Auto Parts

Our company offers integrated production not only for die casting but also from mold making to processing and plating, all in-house! We are also focusing on initiatives such as the automation of deburring (using robots)! Using various casting methods, including die casting, we apply suitable processing according to the product's application and functionality, providing high-quality products. By manufacturing under a consistent production system, we conduct thorough quality control, and in the event of product defects, we perform rapid verification and correction to continue providing high-quality, high-performance products. 【Features】 ■ We can reduce not only production costs but also transportation costs. ■ We can respond quickly from order to production and delivery. ■ We strive to meet customer needs as much as possible, including small lots and short delivery times. ■ By producing around the clock, we can also accept orders for large-volume mass-produced items. *For more details, please refer to the related links or feel free to contact us.

• Processing Contract

We would like to introduce the technological capabilities of Aichu Rika Kogyo. Our company produces three types of die-cast products: aluminum die-casting, zinc die-casting, and ZA27, allowing us to cater to various applications. By acquiring technology for surface treatments such as zinc plating and chrome plating, we have been able to provide functionality and a high-quality appearance, which has earned us high praise. 【Strengths】 ■ Consistent handling of die-casting and plating ■ Capable of die-casting both aluminum and zinc ■ Comprehensive support from buffing to processing ■ Capable of handling die-casting only / plating only ■ 24-hour support for short delivery times ■ Able to accept large lot projects 【Production Achievements】 ■ Automotive parts ・ Car seat belts ・ Key cylinders ■ Shower hangers (for bathrooms) ■ Motorcycle parts ・ Gasoline tank parts ・ Turn signal lamps ■ Musical instrument parts ■ Gas appliances ■ Pachinko machines ■ Ashtrays ■ Souvenirs ■ Fishing reel and more *For more details, please refer to the related links or feel free to contact us.

• aluminum

We would like to introduce the main equipment of Aichu Rika Kogyo Co., Ltd. The surface treatment department is equipped with a "fully automatic chrome plating machine" and a "fully automatic zinc plating machine," while the casting department offers a variety of equipment including "die casting machines" and "automatic lubricators." Additionally, the machine tool department features a lineup that includes "electrical discharge machines," "NC milling machines," and "surface grinding machines." 【Main Equipment (Partial)】 ■ Surface Treatment Department - Fully automatic chrome plating machine - Fully automatic zinc plating machine - Fully automatic black chrome plating machine - Ultrasonic cleaning machine - Shot blasting machine *For more details, please refer to the related links or feel free to contact us.

• Ultrasonic Cleaner