PROBLEM TO BE SOLVED: To provide a hollow fiber membrane module in which the damage of a hollow fiber membrane can be avoided without sticking a buffer plate to a part of a hollow fiber membrane bundle even when a potting agent creeps up, and to provide a method for manufacturing the hollow fiber membrane module and a tool for forming a potting part, which is used at a potting step.SOLUTION: Each of both ends of the hollow fiber membrane bundle 5 is sealed by the potting part 10. The inside of a casing 2 is divided into an empty space for the liquid to be treated through which the liquid to be treated is made to pass and an empty space for a treated liquid through which the treated liquid is made to pass. A connection port becoming a supply port or a discharge port of the liquid to be treated is arranged and communicated with the empty space for the liquid to be treated. The inflow port 13 or the outflow port of the treated liquid is arranged and communicated with the empty space for the treated liquid. The buffer plate 41 is arranged between the opening of the inflow port 13 or that of the outflow port and the hollow fiber membrane bundle 5. A recessed part 45 for storage for temporarily storing the potting agent for forming the potting part 10 is formed on the inner periphery surface of the casing 2 in the position closer to the end side of the casing than the tip of the buffer plate 14.COPYRIGHT: (C)2006,JPO&NCIPI【課題】ポッティング剤の這い上がりが生じても緩衝板と中空糸束の一部とが固着することなく、中空糸膜の損傷を回避できる中空糸型モジュール、その製造方法、及びポッティング工程で使用するポッティング部形成用治具を提供する。【解決手段】中空糸束5の両端部をポッティング部10で封止してケーシング2内を被処理液が通る被処理液空間と処理液が通る処理液空間とに区画し、被処理液の供給口または排出口となる接続口を設けて被処理液空間と連通し、処理液の流入口13または流出口を設けて処理液空間と連通し、流入口13または流出口の開口と中空糸束5との間に緩衝板41を設けた中空糸型モジュールであって、ケーシング2の内周面における緩衝板41の先端部よりもケーシング端部側に、ポッティング部10を形成するポッティング剤を一時的に貯留する貯留凹部45を形成する。【選択図】 図2
