摘要:
A successively joinable carbon electrode for use in gouging or blasting metallic articles comprises a copper coated electrode body having one end formed into a coaxial connecting projection and the other end formed with a coaxial tapered socket for receiving the connecting projection of another carbon electrode of identical construction. The connecting projection consists of a tapered stem portion adjacent the electrode body and a cylindrical portion on one side of the stem portion opposite to the electrode body such that the projection of one carbon electrode can tightly be fitted into the socket of another carbon electrode with the copper layer on such one carbon electrode electrically connected to the copper layer on such another carbon electrode.
摘要:
A gouging wire electrode comprising a metal shell, and a powdery or particulate filler section packed into the metal shell, the composition of the filler section comprising 80-95% by weight of carbon and 5-20% by weight of thermosetting resin binder, the bulk density of the filler section being 1.2-1.7 g/cm.sup.3 and the cross-sectional area of the filler section being 60-90% of the total cross-sectional area. It produces stabilized arcs during electric discharge and is consumed slowly and can replace the conventional carbon electrode.
摘要:
An expandable resin composition comprising:(A) 100 parts by weight of HDPE (high density polyethylene) having a DSC melting point of about 127 to about 136 degrees C.; a density of 0.945 to 0.967 gram per cubic centimeter; and a melt flow rate of about 0.1 to about 10 grams per 10 minutes, and for each 100 parts by weight of component (A),(B) about 2 to about 50 parts by weight of polypropylene having a DSC melting point of at least about 130 degrees C.;(C) about 50 to about 200 parts by weight of an ethylene/alpha-olefin copolymer, prepared with a metallocene catalyst, having a DSC melting point of about 98 to about 121 degrees C.; a density of 0.900 to 0.935 gram per cubic centimeter; and a melt flow rate of about 0.5 to about 3 grams per 10 minutes;(D) about 0.1 to about 5 parts by weight of a polysiloxane-polyether block copolymer having the following formula:R.sub.3 --Si--O--R.sub.2 (SiO).sub.m --RX(SiO).sub.n --SiR.sub.3 wherein each R is independently a monovalent alkyl, alkoxy, hydroxy, aryl, or aralkyl group;X has the formula: --(CH.sub.2).sub.p --(O).sub.q --(C.sub.t H.sub.2t O).sub.s --R';R' is the same as R above and (C.sub.t H.sub.2t O).sub.s is a radical group of ethylene oxide or propylene oxide polymer; andm is 5 to 300; n is 2 to 20; p is 0 or 2; q is 0 or 1; t is 2 or 3; and s is 5 to 100; and(E) about 0.02 to about 5 parts by weight of a nucleating agent selected from the group consisting of azodicarbonamide, talc, and mixtures thereof.
摘要:
Two catalytic converters are disposed in series midway in an engine exhaust passage, and a by-pass valve selectively introduces exhaust into the upstream converter and a by-pass passage which by-passes the converter. When the catalyst temperature of the upstream catalytic converter exceeds a threshold value A, exhaust is routed to the by-pass passage. The catalyst temperature in the state when exhaust is routed to the upstream catalytic converter under steady state engine running conditions is stored as a convergence temperature depending on the engine running conditions. When exhaust is routed to the by-pass passage, exhaust is re-introduced into the upstream converter only when both the catalyst temperature and the convergence temperature corresponding to the running conditions at that time are less than a threshold value B which is less than the threshold value A. In this way, hunting of the by-pass valve operation is prevented.
摘要:
There is disclosed a fuel supply system having a fuel delivery pipe for distributing fuels to injectors of cylinders. This system further includes an inner pipe fixedly inserted into the delivery pipe to constitute part of a fuel passageway, the inner pipe having a length approximate to the delivery pipe. Fuel feed and feedback pipes close to each other are connected to a proximal portion of the fuel passageway consisting of the delivery pipe and the inner pipe.
摘要:
A flame retardant composition comprising (A) about 50 to about 95 percent by weight of at least one ethylene co-polymer selected from an ethylene/vinyl ester copolymer; ethylene/alpha, beta unsaturated carboxylate copolymer; and very low density ethylene/alpha-olefin copolymer; and (B) about 5 to about 50 percent by weight of an ethylene/alpha-olefin copolymer having been prepared with a single site catalyst, and, for each 100 parts by weight of component (A) and component (B) combined, (C) about 2 to about 50 parts by weight of a polyethylene modified with a functional group containing compound; (D) about 5 to about 250 parts by weight of a metal hydrate; (E) about 1 to about 12 parts by weight of a triazine ring containing compound; and (F) about 0.5 to about 5 parts by weight of a flame retardant compound selected from the group consisting of a boron compound, a molybdenum compound, and a silicone.
摘要:
A moisture curable polyolefin composition comprising: (a) a polyolefin, and for each 100 parts by weight of component (a), (b) 0.1 to 10 parts by weight of an unsaturated alkoxy silane; (c) 0.01 to 2 parts by weight of an organic peroxide; (d) 0.01 to 2 parts by weight of a silanol condensation catalyst; (e) 0.02 to 2 parts by weight of a hindered amine stabilizer; (f) 0.01 to 1 part by weight of a hindered phenol antioxidant; and (g) 0.01 to 1 part by weight of an arylamine antioxidant.
摘要:
A composition comprising:(i) a mixture of about 40 to about 80 percent by weight of a copolymer of ethylene and an alpha-olefin having a melt index in the range of about 0.1 to about 10 grams per 10 minutes and a density in the range of 0.870 to 0.930 gram per cubic centimeter and about 20 to about 60 percent by weight of a copolymer of ethylene and ethyl acrylate having a melt index in the range of about 0.1 to about 50 grams per 10 minutes and an ethyl acrylate content in the range of about 10 to about 40 percent by weight, and for each 100 parts by weight of said mixture,(ii) about 30 to about 150 parts by weight of a mixture of talc and calcium carbonate wherein the weight ratio of talc to calcium carbonate is in the range of about 0.3:1 to about 1.2:1; and(iii) about 1 to about 20 parts by weight of an organopolysiloxane having a kinematic viscosity in the range of about 0.06 to about 2 meters per second as measured at 23 degrees C.
摘要:
A burner skeleton made of a composition including calcium aluminate and a silica compound. The calcium aluminate contains 15 to 40 wt % of lime, 35 to 80 wt % of alumina and 0.3 to 20 wt % of iron oxide. The composition may include titanium oxide.
摘要:
A dynamic reconfiguration supporting method that generates a driver function to cause a dynamic reconfiguration circuit to execute a program of an application described in a predetermined language, includes acquiring a configuration defining file representing a configuration of a cluster of the dynamic reconfiguration circuit in execution of the process of the application, generating an address map representing an address of a processing element (to be referred to as “PE” hereinafter) in the cluster on the basis of the configuration defining file acquired by the acquiring operation, generating a driver function that associates the function and an address of the PE which executes the function with reference to the address map, when a PE which executes a function described in the application is allocated from the PE, and creating a driver function file that stores the driver function.