N.K.System CO.,LTDN.K.System CO.,LTD

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CASE STUDY

CASE STUDY
Delivery example

This is an introduction of the inspection equipment manufactured by our company Since it is order-made, it is possible to upgrade the system according to your request. We respond flexibly to various discomforts that arise during continuous use, such as "I tried using it and it didn't feel right" or "I needed to review the function due to a change in specifications."

  • ULTRASONIC INSPECTION SYSTEM TO MEASURE THE GRAPHITE SPHEROIDIZING RATIO

    Numerous delivery records to major domestic and foreign automobile manufacturers

    Graphite spheroidization rate determination device

    Since this material sound velocity has a proportional relationship with the graphite spheroidization rate, it will calculate and judge the spheroidization rate.
    There is no need to polish the surface and check with a microscope.
    For material to be measured, it is possible to control the spheroidization rate by measuring the actual product or by measuring the test piece in front of the furnace.

  • HAMMERING TEST SYSTEM

    Analyze the natural frequency of the material and apply it to various inspections such as cracks and foreign materials

    Hammering inspection device

    By analyzing the sound of hitting the inspection material, it is possible to apply it to various inspections such as discrimination of cracks and foreign materials. The main method of this inspection is to make a judgment by the worker's ear, but by using this device, it is possible to perform a quantitative inspection that is not bound by the individual ability of the worker, and it is possible to save the inspection results. It is possible to manufacture equipment according to various situations, such as a portable type for use in the field and an in-line type for use on the production line at the site.

  • ULTRASONIC SCANNING INSPECTION SYSTEM

    A specified range can be inspected by operating the ultrasonic probe

    Ultrasonic scanning inspection device

    A specified range can be inspected by operating the ultrasonic probe Ultrasonic scanning inspection device By operating the ultrasonic probe, it is possible to perform ultrasonic inspection in an area instead of a point.
    There are two types of inspection methods: the type that inspects in a water tank and the type that inspects while spraying water. Equipment can be constructed according to the size of the inspection material.

  • MULTI-CHANNEL ULTRASONIC INSPECTION SYSTEM

    Simultaneous measurement of product internal defects, material judgment, etc. at multiple inspection points using ultrasonic waves.

    Multi-channel ultrasonic inspection device

    We use ultrasonic waves to measure graphite spheroidization rate and detect internal defects in products such as steering knuckles (ductile cast iron FCD), which are one of the most important safety parts for automobiles. For internal flaw detection, it is possible to simultaneously measure multiple inspection points by using multi-channel ultrasonic waves.
    Various products is possible to be inspected.

  • ULTRASONIC & HAMMERING COMBINED INSPECTION SYSTEM

    Inspection for internal defects, surface cracks, material identification, and wall thickness measurement in one system

    Ultrasonic.hammering combined inspection device

    For product inspection, we use hammering sound to identify cracks and ultrasonic waves to inspect internal defects as a single system. Products that pass these two test results are stamped to manage traceability. Various products can be inspected.

  • COPPER BAR ULTRASONIC INSPECTION SYSTEM

    Detecting internal scratches in round steel bars by using the ultrasonic waves

    Copper bar ultrasonic inspection device

    This device performs water immersion vertical flaw detection from the circumferential direction of the workpiece using an ultrasonic probe fixed to a jig. It`s detect internal scratches.
    After setting the target work, it is possible to automatically transfer and inspect the work in conveyance, and to issue OK or NG based on the inspection results.
    The flaw detection results are displayed on the monitor of the control/operating panel, also the flaw detection results data is saved in the data processing PC and can be checked after inspection.

  • ULTRASONIC INSPECTION SYSTEM FOR THE FORGING CROSS ROLLS

    Circumference inspection is possible by rotating the workpiece

    Forging cross rolls inspection flaws device

    Ultrasonic inspection is used to detect cracks that occur inside the shaft of forged cross rolls. By applying the sensor to the inspection point and rotating the workpiece, it is possible to inspect the entire circumference.It is also possible to build a simple inspection system by using a simple jig and a commercially available portable flaw detector.

  • ULTRASONIC INSPECTION SYSTEM FOR THE PISTON ABRASION RESISTANT RING

    Simultaneous measurement at multiple inspection points such as product internal defects, wall thickness, bonding state, etc. using ultrasonic waves

    Piston ultrasonic inspection device

    We use ultrasonic waves to inspect for unbonded wear-resistant rings (cast iron) cast in aluminum pistons, defects inside pistons, and eccentricity of oil galleries. By converting the ultrasonic wave into multiple channels and rotating the product, it is possible to simultaneously measure multiple inspection points in one lap. This kind of inspection can be applied to various product.

  • EDDY CURRENT INSPECTION SYSTEM

    Automatically measure and detect surface crack on product using eddy current inspection

    Eddy current inspection system

    Detect surface crack that occur in the product. non-destruction, non-contect inspection is possible.
    Depanding on the product inspection specifications, it is possible to carry out the complete inline process from loading, inspection, delivery and payout.

  • EDDY CURRENT TEST SYSTEM FOR THE PISTON PIN

    Full-surface high speed inspection that detects surface crack of the cylindrial shape on medal products

    Piston pin eddy current flaw device

    A sensor that generates the eddy current at high speed rotation, by passing the product through cracks inspection the entire circumferences surface of the product can be performed in a short time.

  • EDDY CURRENT TEST SYSTEM FOR THE BRAKE DISC ROTOR

    Using eddy currents to automatically detect surface cracks in multi-channel products and shorten the inspection time

    Brake disc rotor eddy current flaw device

    Eddy current flaw detection detects surface flaws (cracks) that occur on the pad surface of brake disc rotors (high-carbon cast iron), which are the most important safety parts for automobiles. The entire pad surface is inspected by moving the eddy current sensor while rotating the workpiece. (Photo shows inline equipment)

CUSTOMERSList of main customers (honorifics omitted, in no particular order)

JAPAN

  • AISIN TAKAOKA CO.,LTD.
  • SUZUKI MOTOR CORPORATION
  • MAHLE Japan Ltd.
  • ART METAL MFG. CO.,LTD.
  • KOLBENSCHMIDT K.K.
  • SAMTECH Co., Ltd.
  • JATCO Ltd.
  • DAIHATSU METAL CO.,LTD.
  • MAZUDA MOTOR CORPORATION
  • YOSHIWA KOGYO Co Ltd.
  • NISSAN MOTOR CO.,LTD.
  • NISSIN KOGYO Co., Ltd
  • NIHON SEALAKE CO.,LTD.
  • Hitachi Astemo,Ltd.
  • YUTAKA TECHNO CORPORATION
  • KITAGAWA CORPORATION.
  • JFE CORPORATION
    (WEST JAPAN STEEL WORKS)
  • JFE STEEL CORPORATION.
  • NICHIZO TECH INC.
  • KOHAN KOGYO CO.,LTD.
  • ASAMA GIKEN CO.,LTD.
  • NIPPON STEEL CORPORATION.
    (YAWATA DISTRICT)
  • NIPPON STEEL TECHNOLOGY CO.,Ltd.
  • PROTERIAL, Ltd. (HITACHI METAL)
  • AT KYUSHU CO.,LTD.
  • KAWASAKI HEAVY INDUSTRIES, Ltd.
  • Komatsu Ltd.
  • MITSUBISHI ELECTRIC CORPORATION
  •  

OVERSEA

  • Honda Foundry (Asian)Co.,Ltd
  • MAHLE Engine Components India Private Limited
  • MAHLE Engine Components (Yingkou) Co., Ltd.
  • MAHLE Engine Components (Thailand) Co., Ltd.
  • MAHLE Engine Components (Nanjing) Co., Ltd.
  • ART-SERINA PISTON COMPANY LIMITED
  • PT.ART PISTON INDONESIA
  • Binzhou Yatai Art Power Parts Co., Ltd.
  • Shandong Binzhou Bohai Piston Co., Ltd.
  • SUNG JIN FO-MA
  • JIANGSU HYUNDAI WIA CO.,LTD
  • Mando Corporation
  • DONG YANG PISTON CO.,LTD.