2023年3月3日 · ZSM-5 nanosheets are promising catalysts for the catalytic reactions controlled by diffusion limitations. This study reveals its significant application in the alkylation of benzene with methanol.

2021年9月23日 · Five-axis machining is taking the machining world by storm, and for good reason. This type of manufacturing, in which computer numerical control is used to move cutting parts or tools along five different axes simultaneously, unlocks incredible potential for any shop.

2020年9月20日 · With the addition of powerful B-axis milling spindles and automatic toolchangers, turn-mills combine the best of milling and turning worlds. For many machine shop people, the B-axis turn-mill platform is the first that comes to mind when they think of “multitasking machines” that often can complete parts in one setup.

2010年2月10日 · Most call the first rotary axis the B axis ( on my Sodick it's called the W axis) and any additional rotary axes are labelled whatever. The primary rotary axis is typically oriented horizontally like a lathe and can be an indexing axis or a fully interpolating axis that allows the cutting of spirals or other weird geometry.

2020年8月1日 · The b-axis oriented H-form ZSM-5 catalyst exhibited a longer catalyst lifetime and a higher propylene selectivity in the MTP reaction compared to that of ZSM-5 made by a conventional method. The better catalytic performance was ascribed to the relatively low content of strong acid sites especially those on the external surface of the b-axis ...

2024年11月1日 · MFI-topology nanosheets with a b-axis-oriented structure are valuable catalysts in diffusion-controlled acid-catalyzed reactions. Therefore, b-axis-oriented ZSM-5 nanosheets were synthesized herein in a fluoride-free solution without using special additives and …

Our MULTUS B400II, equipped with B-axis head, is the ultimate fusion of turn-mill operations, with lathe, vertical, or horizontal machining center and material-handling operations consolidated into one 10- to 12-inch chuck class machine.

A B-axis is a rotational axis in a CNC machine that allows the cutting tool to move in a circular motion around the workpiece. It is typically used in 5-axis machining to enable the machine to access difficult-to-reach areas of the workpiece and perform complex cuts.

4 天之前 · VOCs diffuse into ZSM-5 nanosheets mainly through the b -axis of samples. ZSM-5 nanosheets with shorten b -axis exhibits higher toluene diffusion rate. ZSM-5 with 30 nm b -axis exhibits a 1.3-fold higher toluene adsorption capacity. Dichloromethane adsorption capacities rely only on microporous structure.

2012年6月20日 · On other turn-mill machines, though, the linear motion that enables a second spindle or subspindle to approach the main spindle for a workpiece pick-off is referred to as a B axis. Use of a machine with the contouring B axis capability is best suited for complex geometry parts in lower volumes.