摘要:
In prior art linear motor, large burden is applied to a mechanism for supporting a moving member because magnetic attracting force acts in one direction between armature and moving member and the structure is distorted to cause various troubles. In inventive linear motor, a stator having armature winding and moving member having permanent magnets are arranged to move relatively. The linear motor stator includes a ring-shaped core, armature teeth and armature winding to form a magnetic circuit. Slit grooves are formed in armature teeth opposed to both of front and rear surfaces of the permanent magnets of the moving member with an air gap defined between stator and moving member. Projected members movable along the slit grooves of the armature teeth are provided on the permanent magnet surfaces. Thus magnetic attracting force can be canceled and the member having the permanent magnets can have a high rigidity.
摘要:
A fumigating method for fumigating a large place such as a cultural facility with a compact installation and an apparatus used for the fumigating method. The fumigating method which comprises providing an argon gas tank (1) and a PO tank (8) filled with liquid propylene oxide, introducing an argon gas fed from the argon gas tank (1) and liquid propylene oxide fed from the PO tank (8) in advance to a gas-liquid mixer (5) for mixture, introducing the resultant gas-liquid mixture from the gas-liquid mixer (5) to a vaporizer (25) for vaporization, and then introducing the resultant gas mixture to a place (31) to be fumigated; and an apparatus for conducting such a method.
摘要:
A carbon dioxide consuming material and a method for manufacturing it from waste released in the building industry, including: a primary crushing step 5 for crushing concrete fragments 1 under a pressure; a secondary crushing step 7 for crushing or smashing primary-crushed concrete fragments 11 from the primary crushing step by utilizing a grinding motion in a highly dense and pressurized condition; and a screening and separating step 8 for mixture of products obtained by the secondary crushing step.