Kepco Nuclear Fuel Co., Ltd.

Shl Co., Ltd.

Ho Yeon Hwang

Ki Bum Park

Kyung Tae Kim

Sang Jin Han

In Kyu Kim

Min Sung Kwon

Jung Cheol Shin

Min Young Park

Pyeong Mo Yeo

Jeong Jin Jang

Sang Soon Choi

Yong Shin Choi

Disclosed is a composition of a lubricant for cold pilgering of zirconium alloy tubes. More particularly, disclosed is a composition of an external lubricant for cold pilgering of a zirconium alloy cladding tube, the composition exhibiting excellent lubricity and decomposition against microbes.

Composition of external lubricant for cold pilgering

A gap control device for a Pilger die assembly of cold Pilger mills. The gap control device can independently control the height of a pair of bearing blocks which axially support an upper die. A lower plate has first and second receiving holes which respectively correspond to the upper portions of a pair of bearing blocks. First and second wedge plates are fitted into the receiving holes, and respectively have inclined surfaces on the upper portions thereof. First and second adjustment blocks respectively have inclined guide surfaces to be in surface contact with the inclined surfaces of the wedge plates, and are movable horizontally with respect to the lower plate. An upper plate is assembled to the upper portion of the lower plate to cover the adjustment blocks. First and second adjustment bolts allow the first and second adjustment blocks to be respectively manipulated in a horizontal direction.

Gap control device for pilger die assembly of cold pilger mills

Growing community of inventors

Daejeon, South Korea

Ho Yeon Hwang