CONNECTION TUBE AND ITS METHOD OF MANUFACTURING

    公开(公告)号:US20190314877A1

    公开(公告)日:2019-10-17

    申请号:US16472238

    申请日:2017-12-22

    Abstract: A connection tube (1) for connecting two tubes (8, 9) of different alloys, wherein the connection tube has a central through-hole extending along a longitudinal axis and comprises a first end portion (2) of a first alloy, 5 a second end portion (3) of a second alloy, and a middle portion (4) which is at least partly double-layered with said second alloy forming an annular inner layer and said first alloy forming an annular outer layer, wherein a metallic bond has been formed between said layers. The inner and outer layers are mechanically interlocked by means of at 10 least one helically extending thread formed in an interface between said layers. The connection tube is manufactured from a base component and an outer component threaded onto the base component to form a work piece, which is hot worked to form a metallic bond. 15

    Method to machine a metal work piece by turning

    公开(公告)号:US10421128B2

    公开(公告)日:2019-09-24

    申请号:US15893111

    申请日:2018-02-09

    Abstract: A method to form a surface on a metal work piece includes providing a turning insert that has a nose angle formed between first and second cutting edges less than or equal to 85°; providing a turning tool having a tool body with an insert seat in which the turning insert is mountable; arranging the orientation of the second cutting edge such that it forms a back clearance angle of more than 90° in a feed direction; rotating the metal work piece around a rotational axis in a first direction; moving the turning insert in a direction parallel to or at an angle less than 45° relative to the rotational axis; and setting the longitudinal axis of the tool body at an angle greater than zero but less than or equal to 90° relative to the rotational axis of the metal work piece.

    ROLL CRUSHER CRUSHING TEETH ATTACHMENT
    45.
    发明申请

    公开(公告)号:US20190283035A1

    公开(公告)日:2019-09-19

    申请号:US16463069

    申请日:2016-11-23

    Abstract: A crushing segment forming part of a crushing roll of a roll crusher, the segment including a main body to mount at least one crushing tooth. A filler material is interposed between respective first and second mount faces provided at the tooth and main body so as to provide enhanced surface area contact between the tooth and segment and increase the capability of the tooth and segment assembly to withstand significantly high loading forces during use.

    Friction bolt
    46.
    发明授权

    公开(公告)号:US10370968B2

    公开(公告)日:2019-08-06

    申请号:US15779536

    申请日:2016-11-25

    Abstract: A friction bolt assembly to frictionally engage a bore formed in rock strata includes an elongate tube and an expander mechanism acted on by an anchor mechanism via an elongate bar or cable. A retainer mechanism is mounted to act between the bar or cable and the tube to prevent ejection of the bar or cable from the assembly should the bar or cable break.

    Cone crusher, bearing plate, and kit of bearing plates

    公开(公告)号:US10352363B2

    公开(公告)日:2019-07-16

    申请号:US15179298

    申请日:2016-06-10

    Abstract: A gyratory cone crusher includes a first and a second crushing shell defining a crushing gap. The first crushing shell is arranged to gyrate around a vertical axis, in order to crush material entering the crushing gap, and is vertically supported by a thrust bearing including first and second bearing plates defining a spherical sliding interface. One of the bearing plates has one or more cooling and/or lubricating grooves at the sliding interface, each groove defining a channel, extending from the center of the sliding interface to the periphery thereof. In order to obtain a uniform distribution of grooves, the cooling/lubricating grooves are in the form of one or more spirals extending from the center of the sliding interface to the periphery thereof. The disclosure further relates to a bearing plate and a kit of bearing plates involving such a bearing plate.

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