摘要:
A friction drive belt (B) includes a pulley contacting portion (13) which is made of a rubber composition of an ethylene-α-olefin elastomer as raw rubber in which carbon black having an iodine adsorption number of 40 mg/g or lower, and 3-10 parts by mass of short aramid fiber (14) relative to 100 parts by mass of the raw rubber are blended.
摘要:
A belt body (10) of a friction transmission belt (B) includes a pulley contacting portion (13) made of a rubber composition. The rubber composition forming the pulley contacting portion (13) includes an ethylene-α-olefin elastomer as a rubber component, and in the rubber composition, 10-50 parts by mass of calcium carbonate relative to 100 parts by mass of the rubber component, and carbon black whose DBP oil absorption amount measured according to the method A specified in Japanese Industrial Standards (JIS) K 6217-4 is 300 cm3/100 g or more are mixed.
摘要:
A friction drive belt (B) includes a pulley contacting portion (13) which is made of a rubber composition of an ethylene-α-olefin elastomer as raw rubber in which carbon black having an iodine adsorption number of 40 mg/g or lower, and 3-10 parts by mass of short aramid fiber (14) relative to 100 parts by mass of the raw rubber are blended.
摘要:
A belt body (10) of a friction transmission belt (B) includes a pulley contacting portion (13) made of a rubber composition. The rubber composition forming the pulley contacting portion (13) includes an ethylene-α-olefin elastomer as a rubber component, and in the rubber composition, 10-50 parts by mass of calcium carbonate relative to 100 parts by mass of the rubber component, and carbon black whose DBP oil absorption amount measured according to the method A specified in Japanese Industrial Standards (JIS) K 6217-4 is 300 cm3/100 g or more are mixed.
摘要:
A tissue fastener production method of clamping two living tissues together by bringing the two living tissues into close contact includes the following steps: fixing one end of a wire material made of a metal to a shaft body, and winding the wire material around an outer periphery of the shaft body while twisting the wire material round an axis of the wire material, thereby forming a coil on which a predetermined force is exerted in the winding direction; heat treating the wire material to impart superelasticity thereto; and deforming the wire material to which the superelasticity is imparted in a range in which the wire material is elastically deformable, and reversing the winding direction of the coil in a direction reverse to the winding direction of the coil wound in the step of forming the coil so as to obtain an initial tension corresponding to the predetermined force.
摘要:
A powder valve is propose which is simple in structure and small in size, which can prevent powder from getting stuck in the valve, and can withstand high feed pressure. The valve includes a valve casing 21, a valve shaft 25, and a valve body 22 mounted in the valve casing 21 and supported by the valve shaft 25. The valve body 22 has a spherical outer surface 27 configured to be brought into contact with a valve seat 23 of the valve casing 21 to close the valve. The valve body 22 is formed with a communication hole 26 extending in a direction perpendicular to the valve shaft 25 so that when the valve body 22 is rotated about the valve shaft 25 in either of two opposite directions from the closed position, the valve is configured to open through the communication hole 26. The communication hole 26 is open on the back side of the valve body 22 over the entire length thereof. With this arrangement, it is possible to ensure the advantages of a ball valve, i.e. full-bore properties and high rigidity. Since the pressure of powder flowing through the communication hole 26 acts on the inner periphery of the valve casing 21, the flow of powder blows off and removes any powder which could otherwise get stuck on the inner periphery of the valve casing 21. By rotating the valve body 22 in both directions, powder can be removed on both sides of the valve shaft 25.
摘要:
The present invention aims at providing a porous molded product comprising magnesium and aluminum which is satisfactory in both of a specific surface area and mechanical properties, can be suitably used as filters, drying agents, adsorbents, purifying agents, deodorants, carriers for catalysts, etc., includes a large amount of micropores, and has a large specific surface area and a high strength, as well as a process for producing the porous molded product. The porous molded product of the present invention comprises at least magnesium and aluminum, and having a magnesium content of 10 to 50% by weight in terms of a magnesium atom, an aluminum content of 5 to 35% by weight in terms of an aluminum atom, a pore volume of 0.01 to 0.5 cm3/g, an average pore diameter of not more than 300 Å and an average collapse strength of not less than 3 kg, and can be produced by molding hydrotalcite comprising at least magnesium and aluminum and then calcining the resulting molded product at a temperature of 500 to 1500° C.
摘要:
Provided is a process and an apparatus for producing at low cost gas hydrate pellets having an excellent storability. A gas hydrate generated from a raw-material gas and raw-material water is dewatered and simultaneously molded into pellets with compression-molding means under conditions suitable for generating the gas hydrate while the gas hydrate is generated from the raw-material gas and the raw-material water that exist among particles of the gas hydrate.
摘要:
A suturing device for suturing tissues by using a suturing unit having an anchor mounted to an end portion of a suturing thread is provided, the suturing device including: a pair of first and second jaws which are opened or closed so as to grip the tissue; a hollow needle tube which receives the anchor in an inner cavity thereof; and a pusher which is inserted through the needle tube in a freely advancing and retracting manner and is capable of pushing the anchor received in the needle tube toward a distal end of the needle tube, in which the needle tube is disposed so as to intersect the first jaw and to allow the distal end thereof to face the second jaw, and in which, when the tissue is gripped by the first and second jaws, the needle tube is inserted into the tissue.
摘要:
A frame structure provided for a body frame that can be used in common to vehicles with different types of rear suspensions. The frame structure includes a sub-frame assembly for an independent suspension type rear suspension that can be mounted to a body frame by using pivot brackets for supporting a swing arm provided in the body frame, and also using an upper mount for supporting a rear cushion provided in the body frame.