METHOD FOR MANUFACTURING MOLDING MATERIAL FOR RESIN GEAR, AND METHOD FOR MANUFACTURING RESIN GEAR

• Main Authors: OZAWA MASAYA, FUKAO TAKESHI, YOSHIKI KAZUYA
• Format: Patent
• Language: English; Japanese
• Published: 01.11.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a method for manufacturing a molding material for a resin gear, that can strengthen the resin gear and is easy to handle, and a method for manufacturing the resin gear.SOLUTION: A method for manufacturing a molding material 6 for a resin gear comprises: a first step for preparing a raw material 5 containing a thermocurable resin powder 2 and a wet fiber 3; and a second step for forming the molding material 6 for the resin gear by mixing the raw material 5 by a mixer 10 for a predetermined time. The wet fiber 3 contains a first fiber 3P being a para-aramid fiber, and a second fiber 3M being a meta-aramid fiber. A fiber length of the first fiber 3P is 3±1 mm. A fiber length of the second fiber 3M is longer than the fiber length of the first fiber 3P.SELECTED DRAWING: Figure 2 【課題】樹脂製歯車の高強度化が可能で且つ取扱いが容易な樹脂製歯車用成形材料の製造方法、及び樹脂製歯車の製造方法を提供する。【解決手段】樹脂製歯車用成形材料６を製造する方法であって、熱硬化性を有する樹脂粉末２とウェット繊維３とを含む原料５を準備する第１工程と、原料５を混合機１０によって所定時間混合することにより樹脂製歯車用成形材料６を形成する第２工程と、を備える。ウェット繊維３は、パラ系アラミド繊維である第１繊維３Ｐと、メタ系アラミド繊維である第２繊維３Ｍと、を含む。第１繊維３Ｐの繊維長は、３ｍｍ±１ｍｍであり、第２繊維３Ｍの繊維長は、第１繊維３Ｐの繊維長よりも長い。【選択図】図２