摘要:
The invention relates to a case hardened steel which comprises, in weight percent, 0.14 to 0.23 % of carbon, 0.2 to 0.4 % of silicon, 0.6 to 1.7 % of manganese, up to 0.035 % of phosphorus, up to 1.5 % of nickel, 0.7 to 1.7 % of chromium, up to 0.5 % of molybdenum, up to 0.04 % of titanium and 0.01 to 0.02 % of nitrogen and other additives conventionally used for steel. The steel also comprises, in weight percent, 0.02 to 0.06 % of niobium, preferably 0.04 to 0.06 % of niobium, and an oxygen content of 40 to 70 ppm and an aluminum content of 100 ppm.
摘要:
A recoil starter capable of readily staring an engine and reducing the number of components and manufacturing costs thereof and reducing a size and weight thereof. The recoil starter is so constructed that a rotational force accumulated in a cushioning and force accumulating means (12) interposed between a rope reel (4) and a cam (9) is transmitted via the cam (9) to a drive pulley (6), to thereby start the engine. A ratchet mechanism (14, 30, 40, 50) is provided between the rope reel (4) and the cam (9) so as to uncouple the cam (9) from the rope reel (4) when the rope reel (4) is rotated in an engine starting direction and so as to couple the cam (9) to the rope reel (4) when the rope reel (4) is rotated in a direction opposite to the engine starting direction, thus rotating the cam (9) and the rope reel (4) together in said opposite direction.
摘要:
A method for crystallization of a weakly acidic and/or weakly basic compound having an uncharged form and at least one charged form comprises the steps of: a) providing a solution of said compound in a solvent having an initial pH-value and an initial total concentration of said compound, said initial pH-value being chosen such that the compound is present in said solution predominantly in said charged form, said initial total concentration being chosen larger than the intrinsic solubility of said uncharged form; b) gradually changing the pH-value of said solution in a direction that leads to a decrease of said compound's solubility until reaching a predetermined target pH-value at which said solution is in a substantially saturated state and the concentration of said uncharged form is substantially equal to said intrinsic solubility thereof; and c) maintaining said solution in a substantially saturated state while allowing formation of crystals of said compound.
摘要:
The invention relates to a method for producing a fragrance and/or aroma composition using a composition database that contains recipe vectors and attribute vectors associated with groups of base compositions. According to the inventive method, a target attribute vectors is defined, an operator effecting the transformation of recipe vectors to attribute vectors in at least one surrounding of the target attribute vector is determined, a target recipe vector is determined under the proviso that it is transformed to the target attribute vector using said operator, and defined substance components are mixed with one another in proportions according to the target recipe vector.
摘要:
Die Erfindung betrifft einen thermoplastisch verarbeitbaren Verbundwerkstoff aus A. mindestens einer Faservliesschicht aus Thermoplasstfasern und gegebenenfalls Verstärkungsfasern und B. einer Gewebe- oder Gelege- Schicht aus Verstärkungsfasern, wobei die Schichten A und B zusammengenadelt sind.
摘要翻译:在包含(A)至少一种面积重量为100-2000g / m 2>的纤维无纺布层的新的可热塑性加工复合片材(I)中,由10-90wt。 %热塑性纤维和0-90wt。 %增强纤维,(B)面积重量为100-1000g / m 2>的加强纤维的织造或组装层,将层(A)和(B)一起针刺。 包括生产(I)的独立权利要求,通过梳理或空气铺设方法制备层(A),然后连续接触和针刺一层(B)和一层或两层(A)。
摘要:
The invention relates to a personal cooling element for patients, comprising at least one cooling zone (2) that can be pre-tensioned against the surface (10) of the body of a person wearing the personal cooling element. The cooling zone (2) consists of three layers: an internal layer (4) that faces the body; an external layer (6) that faces away from the body; and an evaporation zone (8) that is located between said layers. The internal layer (4) and the external layer (6) are configured respectively from a waterproof layer and a layer that is permeable to water vapour. The element is equipped with water supply means (14, 16) for supplying the evaporation zone (8) with water.
摘要:
A method for processing a set of spectra, particularly NMR spectra, comprising the steps of: a) selecting a principal spectral range; a) recording a plurality of principal spectra in said principal spectral range; c) obtaining a reference principal spectrum in said principal spectral range; d) carrying out, for each one of said principal spectra, a bin-wise division of the principal spectrum by said reference principal spectrum to obtain a corresponding set of spectral quotients; e) calculating, for at least one of said principal spectra, an associated set of statistical measures derived from the corresponding set of spectral quotients; and f) carrying out, for at least one of said sets of statistical measures, an outlier detection test.
摘要:
The invention relates to a manufactured steel chain blank comprising, in weight percent, between 0.17 and 0.26 % carbon, between 0.9 and 1.5 % manganese, up to 0.02 % phosphorus, up to 0.02 % sulphur, between 0.9 and 1.5 % nickel, between 0.3 and 1.0 % chromium, up to 0.25 % copper, between 0.4 and 1.0 % molybdenum, between 0.02 and 0.05 % aluminium, between 0.02 and 0.06 % titanium and up to 0.012 % nitrogen, in addition to admixtures that are usually used in the production of steel. The silicon content lies between 1.0 and 1.6 wt %.
摘要:
A semiconductor device (10) with a wire loop comprises a wire (3) connecting a first bonding point (A) and a second bonding point (Z) therethrough, wherein the wire (3) has a crushed part (3c) formed therein by crushing the part of the wire (3) and a top of a ball (30) bonded to the first bonding point (A) with a capillary. The wire loop is formed by a wire bonding method which includes: bonding the wire (3) to the first bonding point (A) ; moving the capillary (4) horizontally and vertically while carrying out loop control; bonding by crushing a part of the wire (3) and the top of said ball (30) with the capillary to form a crushed part (3c) in the wire (3) to the vicinity of the top of the ball (30) bonded to the first bonding point (A); and thereafter, moving the capillary (4) horizontally and vertically to the second bonding point (Z) while delivering the wire (3) and carrying out loop control, and then bonding the wire (3) to the second bonding point (Z).
摘要:
Die Erfindung betrifft ein Verfahren zur Herstellung von Leichtbauteilen mit einer Dichte von 0,3 bis 0,9 g/cm3 aus faserverstärkten thermoplastischen Kunststoffen durch Einspritzen einer Thermoplastschmelze, die Verstärkungsfasern sowie ein chemisches Treibmittel enthält, in ein Formwerkzeug, - wobei in einem Extruder ein thermoplastischer Kunststoff aufgeschmolzen und mit dem Treibmittel sowie mit Verstärkungsfasern einer Länge von mehr als 25 mm vermischt wird, wobei die Fasern durch Scherwirkung gebrochen werden, und - wobei die Mischung in ein Formwerkzeug eingespritzt wird und dabei aufschäumt, dadurch gekennzeichnet, - dass das chemische Treibmittel in Form eines Konzentrats in dem Thermoplasten zugegeben wird, wobei die Menge an Treibmittel 1 bis 10 Gew.%, bezogen auf die Gesamtmenge an thermoplastischem Kunststoff beträgt, und - dass das Formwerkzeug zwei Formhälften aufweist, die beim Einspritzen nicht gegeneinander verschoben werden, und - dass die Fasern auf eine Länge von 2 bis 20 mm gebrochen werden.