摘要:
In an electronic component mounting method, electronic components are picked up from a component supply unit in which first and second tray supply mechanisms are arranged, and mounted on substrates. In the method, a first substrate and a second substrate different in type from the first substrate are transported by first and second substrate transport lanes, respectively, and a first component to be mounted on the first substrate and a second component to be mounted on the second substrate are supplied by the first and second tray supply mechanisms, respectively. If use stop setting indicating that the pickup of the electronic components is no longer conducted is enabled in one tray supply mechanism, the controller prohibits an access of a mounting head to the one tray supply mechanism, and permits an operation access of an operator to a tray housing unit of the one tray supply mechanism.
摘要:
A relief device includes a relief housing constituted by a relief inflow portion, a valve passage portion, a recess, and an oil discharge portion having a relief hole; a relief valve having a small-diameter portion between a first large-diameter portion and a second large-diameter portion; and a spring elastically biasing the relief valve toward the relief inflow portion. The recess is formed at a position that is closer to the relief inflow portion side than to the oil discharge portion, the axial length of the recess is larger than the axial length of the first large-diameter portion of the relief valve, and the shortest axial distance between the recess and the relief hole is less than the axial length of the small-diameter portion.
摘要:
A method of optimizing an order of component mounting which includes optimizing an order of component mounting for any one pattern among the plurality of patterns, calculating a quotient and a remainder by dividing the total number of the patterns included in the board by the number of mounters, determining the quotient as the number of patterns to be allocated in a case where the remainder is zero. The optimization method also includes determining a number, which is the quotient plus one, as the number of patterns to be allocated to the same number of the mounters as the remainder, starting from the mounter in a process farthest upstream, determining the quotient as the number of patterns to be allocated to the rest of the mounters, in the case where the remainder is one or greater, and allocating the allocated number of patterns, to each of the mounters.
摘要:
A method for identifying apparatuses to be recalled that enables identifying the locations of the products to be recalled, the method including: collecting steps (S2 and S4) of collecting the information items stored in IC tags from the apparatuses with the IC tag via a communication network, a checking step (S6) of checking the information items collected in the collecting step with the information items related to the apparatuses to be recalled, and an identifying step (S8) of identifying the apparatuses to be recalled in the apparatuses with the IC tag based on the checking results.
摘要:
The present invention provides a component mounting sequence optimizing method, a component mounting device, a program for executing the component mounting sequence optimizing method, and recording medium in which the program is recorded, in the component mounting device with a component holding head capable of holding a plurality of components and having a component recognition camera. The invention includes a component mounting sequence optimizing device (300) and a mounting sequence for components is determined on basis of a result of comparison between conveyance times for the components and recognition times required for recognitions of the components. Thus cycle time for mounting can be reduced, in comparison with conventional arts, in mounting of components with a component holding head having a plurality of component holding members and having a component recognition camera.
摘要:
The present invention presents a high tensile strength cold rolled steel sheet having excellent formability, impact resistance and strain age hardening characteristics, and the production thereof. As a specific means, a slab having a composition which contains, by mass %, 0.15% or less of C, 0.02% or less of Al, and 0.0050 to 0.0250% of N at N/Al of 0.3 or higher, and has N in a solid solution state at 0.0010% or more, is first hot rolled at the finish rolling delivery-side temperature of 800° C. or above, and is subsequently coiled at the coiling temperature of 750° C. or below to prepare a hot rolled plate. Then, after cold rolling, the hot rolled plate is continuously cooled at a temperature from the recrystallization temperature to 900° C. at a holding time of 10 to 120 seconds, and is cooled by primary cooling in which the hot rolled plate is cooled to 500° C. or below at a cooling rate of 10 to 300° C./s, and furthermore if necessary, by secondary cooling in which a residence time is 300 seconds or less in a temperature range of the primary cooling stopping temperature or below and 350° C. or higher. Provided is a steel sheet containing a ferritic phase having an average crystal grain size of 10 &mgr;m or less at an area ratio of 50% or more, and if necessary, a martensitic phase at an area ratio of 3% or more as a second phase.
摘要:
Provided is an image forming method including: applying an ink to a print medium and heating the print medium to which the ink is applied at a heating temperature of 60 degrees C. or higher. The ink contains pigment-encapsulating resin particles comprising a pigment and a resin encapsulating the pigment. A proportion of the pigment alone exposed without being encapsulated with the resin is 10% by mass or less relative to solid components contained in the ink. Amass ratio of the pigment to the resin in the pigment-encapsulating resin particles is 0.25 or greater but 1.0 or less. A contact angle θm (°) of the ink when the ink is dropped by 5 microliters onto a print medium at 73 degrees C. is 25° or less.
摘要:
An ink, includes water; a coloring material; and a cross-linked copolymer having a structure unit represented by the following Chemical formula 1, and a structure unit represented by the following Chemical formula 2, in Chemical formula 1, X represents a hydrogen atom or a cation and R1 represents a hydrogen atom or a methyl group, in Chemical formula 2, R2 represents a hydrogen atom or a methyl group, L represents an alkylene group having 2 to 18 carbon atoms, and * represents an atomic bond.
摘要:
An ink contains water, a pigment, and a polymer having a structure unit represented by the following Chemical structure 1, where R1 represents an organic group having at least carbon and oxygen.
摘要:
Consumed energy is minimized to reduce running cost. Final formed products of uniform quality are successively obtained. High productivity is provided. A primary forming step of obtaining a primary formed product by plastically working a heated steel sheet with a primary forming die set for a predetermined time period, a secondary forming step of machining the primary formed product with the secondary forming die set for a predetermined time period to obtain a secondary formed product, and a hardening step of allowing a cooling die set placed in a hydraulic press controlled by a servomotor to hold the secondary formed product under pressure for a longer time period than the time period of each of the primary and secondary forming steps to obtain a hardened final formed product are successively performed in sequence. The hardening step is performed independently without coordinating with the primary and secondary forming steps.