摘要:
A coating aluminized steel sheet suitable for fuel tanks, which comprises (a) a steel sheet, (b) an aluminized-plating layer formed on one or both sides of the steel sheet and based on aluminum or an aluminum alloy containing 2-15 wt% silicon, and (c) a coating layer formed on at least one of the aluminizing layers and selected from the group consisting of i) a resin chromate film having a film thickness of 0.1-2 &mgr;m and containing a resin and a chromic acid compound, with the resin/metal chromium weight ratio in the range of 0.5-18, ii) an inorganic-based chromate film with the coating layer formed to 10-200 mg/m2 in terms of metallic chromium, which comprises 100 parts by weight of a chromic acid compound in terms of metallic chromium and 100-1000 parts by weight of colloidal silica, and further comprises any one or more of 100-600 parts by weight of a phosphoric acid compound, 10-200 parts by weight of a phosphonic acid or phosphonic acid salt compound and less than 50 parts by weight of a resin, and iii) an inorganic-based chromate film with a coating amount of at least 10 mg/m2 and less than 35 mg/m2 in terms of metallic chromium. There are provided automobile fuel tanks with excellent durability, forming formability and weldability, and a seam welding process for fuel tanks.
摘要翻译:一种适用于燃料箱的涂覆镀铝钢板,其包括(a)钢板,(b)在钢板的一面或两面上形成的铝镀层,并且基于铝或含有2-15重量份的铝合金 %硅,和(c)形成在至少一个所述镀铝层上的涂层,并且选自i)树脂铬酸盐膜,其膜厚度为0.1-2μm,并含有树脂和铬酸化合物 ,其中树脂/金属铬重量比在0.5-18的范围内,ii)以金属铬计为10-200mg / m 2的涂层的无机类铬酸盐膜,其包含100重量份的 以金属铬计的铬酸化合物和100-1000重量份的胶体二氧化硅,还包括100-600重量份的磷酸化合物,10-200重量份的膦酸中的一种或多种 或膦酸盐化合物,并且小于50份 h的树脂,和iii)以金属铬计,涂布量为至少10mg / m 2且小于35mg / m 2的无机类铬酸盐膜。 提供了具有优异的耐久性,成形性和可焊性的汽车燃料箱和用于燃料箱的缝焊工艺。
摘要:
The present invention provides a hot-dip Al-plated steel sheet for fuel tanks excellent in air-tightness after welding and corrosion resistance subsequent to forming. The present invention provides, as concrete means, a hot-dip Al-plated steel sheet comprising a steel sheet comprising up to 0.003% of C, up to 0.03% of Si, up to 0.3% of Mn, up to 0.02% of P, up to 0.006% of N, up to 0.1% of Ti, Ti and Nb in a total amount of at least the atomic equivalent of (C+N) and up to 0.2%, 1 to 30 ppm of B, and the balance Fe and unavoidable impurities, and a plating layer comprising 2 to 13% of Si, and the balance Al and unavoidable impurities on the surface of the steel sheet, the steel sheet showing a total elongation of at least 45% after plating. Alternately, the hot-dip Al-plated steel sheet may have a chromate coating in an amount of 5 to 100 mg/m2 on the surface, and it may also have a resin coating on the top surface. As a result, the Al-plated steel sheet is excellent in elongation after Al plating. The Al-plated steel sheet is, therefore, significantly excellent in corrosion resistance subsequent to forming in the internal environment of fuel tanks compared with conventional steel sheets. Accordingly, the Al-plated steel sheet also having excellent air-tightness after welding is most appropriate as a material for fuel tanks of automobiles.
摘要:
A hot-dipped aluminum coated steel sheet including, on the surface thereof, a coating layer consisting of 2 to 15 wt % of Si, not greater than 1.2 wt % of Fe, 0.005 to 0.6 wt % of Mn, 0.002 to 0.05 wt % of Cr and the balance of Al and unavoidable impurities, and an alloy layer disposed between the coating layer and the steel sheet, having a thickness of not greater than 7 .mu.m and having a mean composition consisting of 20 to 50 wt % of Fe, 3 to 20 wt % of Si, 0.1 to 10 wt % of Mn, 0.05 to 1.0 wt % of Cr and the balance substantially consisting of Al. This steel sheet can be produced by conducting coating in a coating bath consisting of 3 to 15 wt % of Si, 0.5 to 3.5 wt % of Fe, 0.05 to 1.5 wt % of Mn, 0.01 to 0.2 wt % of Cr and the balance substantially consisting of Al, or by adjusting the sum of the concentrations of Zn and Sn in the impurities in the coating layer to not greater than 1 wt %.
摘要:
A hot-dip aluminium coated steel sheet having excellent corrosion resistance and heat resistance, comprising a steel substrate containing 3 to 18% chromium, not more than 0.02% carbon, 0.1 to 1.5% manganese, 0.005 to 0.08% aluminium, not more than 0.1% silicon, with the balance being iron and unavoidable impurities, and aluminium coating on said sheet substrate. The coated sheet may further comprises a coating layer of nickel or nickel-iron alloy (Ni: 1 to 99%) beneath the aluminium coating, or an Al-Fe-Si-Ni-Cr alloy coating layer of 1 to 10.mu. in thickness and containing 0.05 to 5% nickel, 0.2 to 10% chromium, beneath the aluminium coating.
摘要:
A brake force detecting device for detecting strain in a caliper bracket. The brake force detecting device includes a sensor plate fixed to the outside surface of a brake load receiving portion of the caliper bracket in the circumferential direction of a brake disc and a strain gauge attached to the sensor plate for detecting strain generated in the sensor plate. The strain gauge is connected to an amplifier.
摘要:
A brake force detecting device for detecting strain in a caliper bracket. The brake force detecting device includes a sensor plate fixed to the outside surface of a brake load receiving portion of the caliper bracket in the circumferential direction of a brake disc and a strain gauge attached to the sensor plate for detecting strain generated in the sensor plate. The strain gauge is connected to an amplifier.
摘要:
In response to the recent various requests, the present invention provides a method for manufacturing filler neck to facilitate jointing a mouthpiece and a feeding pipe which were manufactured separately into an integrated filler neck having an excellent hermeticity. The method for manufacturing a filler neck 1 comprises the following steps: jointing an inner face of the circumferential wall portion 16 of a feeding pipe and an outer face of the circumferential wall portion 12 of the mouthpiece, and integrating with the mouthpiece 2 and the feeding pipe 3, wherein the outer of the mouthpiece and the inner face of the feeding pipe are in relation to be fitted in a press-fitted condition, a seam welding is executed to the welding area W provided in a range of the overlapped area S defined by the width of the circumferential wall portions.
摘要:
There is provided a control unit including a vehicle speed sensor for detecting a vehicle speed, a vehicle stop determination module for determining whether or not a vehicle is stopping based on a detection result of the vehicle sensor and a controller, wherein the controller operates an inclination component of gravity acceleration in a longitudinal direction of the vehicle on a road surface on which the vehicle is running based on an output of the power source detected by a power source output sensor and a brake torque detected by a brake torque sensors when the stop determination unit is determining that the vehicle is in a stopped state and controls either of the output of the power source and the brake force based on the result of the calculation when the vehicle starts.
摘要:
A brake force detecting device having a sensor plate fixed to a knuckle. A straight line connecting the centers of two bolts for fixing a caliper bracket to the knuckle is perpendicular to a straight line connecting the centers of two bolts for fixing the sensor plate to the knuckle as viewed in side elevation. A strain gauge is attached to the sensor plate.
摘要:
A brake apparatus for a vehicle includes a brake operation unit, a master cylinder, and an electrically controlled hydraulic source. The brake apparatus also includes a wheel cylinder to retard rotation of a wheel using hydraulic pressure generated either by the master cylinder or the electrically controlled hydraulic source. The brake apparatus further includes a hydraulic path connecting the master cylinder, the wheel cylinder, and the electrically controlled hydraulic source. The brake apparatus further includes a shut-off valve electrically controlled and operated to alternatively close and open part of the hydraulic path, an operation pressure measuring unit measuring hydraulic pressure generated by the master cylinder, and a braking pressure measuring unit measuring hydraulic pressure acting on the wheel cylinder. Operation of the apparatus is controlled by a control unit capable of changing magnitude of drive current to be supplied to the shut-off valves depending on values measured by the operation pressure measuring unit and the braking pressure measuring unit.