Time filter

Source Type

Patent
Sumitomo Heavy Industries | Date: 2016-11-18

A forming apparatus that forms a metal pipe includes: a heating unit which heats a metal pipe material; a gas supply unit which supplies gas into a heated metal pipe material, thereby expanding the metal pipe material; a die which forms the metal pipe by bringing the expanded metal pipe material into contact with the die; a cooling unit which cools the metal pipe after the forming by a cooling medium; and a control unit which controls an operation of the die, the gas supply unit, and the cooling unit, wherein the control unit makes cooling of the metal pipe by the cooling medium be performed, by controlling an operation of the die such that the die is opened and controlling the cooling unit such that the cooling unit brings the cooling medium into contact with the metal pipe, subsequently to completion of forming by the die.


Patent
Sumitomo Heavy Industries | Date: 2017-01-25

Disclosed is a granular material simulation method capable of reducing a calculation time of a particular dynamics simulation. A granular material S which is a simulation target, in which a force acting on each grain is expressed by a potential dependent term depending on an interaction potential between grains and a dissipation term depending on dissipation of energy, is defined. Physical quantities included in the potential dependent term of a motion equation of each grain of the granular material S are renormalization-transformed so that the form of a Hamiltonian expressed by a kinetic energy of each grain of the granular material S and a potential energy based on the interaction potential doesnotchange. Physical quantities included in the dissipation term are renormalization-transformed so that a rate of change of the potential dependent term and a rate of change of the dissipation term based on the renormalization transformation become equal to each other. Temporal development of a renormalized granular material S is calculated by performing numerical integration with respect to a motion equation of each grain of the granular material S.


Patent
Sumitomo Heavy Industries and Kyoto University | Date: 2017-03-01

Provided is a neutron capture therapy system which can improve a therapeutic efficacy. A neutron capture therapy system (1) in which a patient (S) is irradiated with a neutron beam (N) includes an irradiation chamber (3) which is surrounded by a shielding wall (W) blocking the neutron beam (N) from being radiated from the inside to the outside of the chamber and in which the patient (S) is arranged inside the chamber and is irradiated with the neutron beam (N), a neutron beam irradiation unit (8) that irradiates the inside of the irradiation chamber (3) with the neutron beam (N), a shielding door (D1) that closes a gate (3b) provided in the shielding wall (W), a medicine supply pump (17) that supplies a medicine to the patient (S), and a medicine supply tube (18) through which the medicine is introduced from the medicine supply pump (17) to the patient (S) arranged inside the irradiation chamber (3). The medicine supply pump (17) has a control unit (17a) which controls a supply quantity of the medicine and is arranged outside the irradiation chamber (3).


Patent
Sumitomo Heavy Industries | Date: 2017-03-29

An injection molding machine includes: a platen main body portion (13a); a pair of link attachment portions (13b) which protrudes from the platen main body portion (13a) and each includes top portions to which links of a toggle mechanism are attached; and a transmission portion (13d) which overlaps a straight line (L) which connects the pair of link attachment portions (13b) to each other when viewed in a mold opening and closing directions, and transmits forces in opposite directions acting on the pair of link attachment portions (13b) when a mold is clamped to a portion between the pair of link attachment portions.


Patent
Sumitomo Heavy Industries | Date: 2017-03-01

To provide an injection unit in which the inertia of objects to be driven by an injection motor is small and a pressure applied to a molding material can be accurately detected. An injection unit includes an injection frame (51) to which a stator (45a) of a plasticizing motor (45) and a stator (46a) of an injection motor (46) are fixed, a rotation movement shaft (52) which is connected to a rotor (45b) of the plasticizing motor (45) to be movable forward and backward with respect to the rotor (45b) and rotates along with the rotor (45b) of the plasticizing motor (45), a drive shaft (53) which is movable forward and backward with respect to the injection frame (51) and transmits a propulsive force generated by the injection motor (46) to the rotation movement shaft (52), and a pressure detector (47) which is disposed between the rotation movement shaft (52) and the drive shaft (53).


Patent
Sumitomo Heavy Industries | Date: 2017-03-22

An injection molding machine includes a cylinder (41) which heats a molding material supplied from a supply port (41a) to the inner portion of the cylinder, a screw (43) which is movable forward and backward and is rotatable in the cylinder (41), a drive source (46) which moves the screw (43) forward and backward, a controller (90) which controls the drive source (46), a check valve (48) which is provided on a front end portion of the screw (43) and prevents backflow of the molding material from the front side of the screw; and a liquid pressure detector (49) which detects a liquid pressure of a melted molding material on the rear side of the check valve (48) and the front side of the supply port (41a), in which the controller (90) controls the drive source (46) on the basis of the liquid pressure which is detected by the liquid pressure detector (49).


Patent
Sumitomo Heavy Industries | Date: 2017-01-25

Disclosed is a method of performing a simulation by applying renormalization transformation in which a velocity distribution of grains is maintained. A renormalization transformation process is performed with respect to a granular system S which is a simulation target based on a renormalization factor depending on the number of renormalizations. A position vector and a momentum vector of a grain of a renormalized granular system S are calculated by executing molecular dynamics calculation with respect to the renormalized granular system S. An interaction potential between the grains of the granular system S is expressed as (r) = f((r-r_(0))/), where represents an interaction coefficient having a dimension of energy, f represents a non-dimensional function, r_(0) and represent parameters characterizing a grain, and r represents an inter-grain distance. When a dimensionality of a space of the granular system S is represented as d, by applying transformation laws expressed as N =N/^(d), m =m^(d), =^(d), r_(0) =r_(0), and =, the molecular dynamics calculation is executed based on an interaction potential of the renormalized granular system S expressed as (r) = f ((r-r_(0))/).


Patent
Sumitomo Heavy Industries | Date: 2017-01-04

An injection molding machine that improves the stability of pressure control in a holding pressure process is provided. The injection molding machine includes a cylinder that heats a molding material that fills the inside of a mold unit; an injection member that is disposed within the cylinder so as to be movable forward and backward; a driving source that moves the injection member forward and backward; and a controller that controls the driving source. The controller lowers a control gain used for the control of the driving source during in a holding pressure process when driving the driving source.


Patent
Sumitomo Heavy Industries | Date: 2017-03-29

Provided are a forming apparatus and a forming method, in which it is possible to obtain a forming product having suitable characteristics. A control unit (70) makes cooling of the metal pipe (80) by a cooling medium be performed, by controlling an operation of a blow forming die (13) such that the blow forming die (13) is opened and controlling the cooling unit (90) such that the cooling unit (90) brings the cooling medium into contact with the metal pipe (80), subsequently to completion of forming by the blow forming die (13). In this manner, by performing the cooling by contact with the cooling medium, it is possible to slow down a cooling rate, compared to the cooling by contact with the blow forming die (13), and thus quenching to enhance the toughness of the metal pipe (80) becomes possible. Further, in a case of performing cooling by using the cooling medium, by adjusting a contact time with the cooling medium, the amount of the cooling medium, the temperature of the cooling medium, or the like, it is possible to easily perform adjustment of hardenability, compared to the cooling by contact with the die.


Patent
Sumitomo Heavy Industries | Date: 2017-01-18

A shovel according to an embodiment of the present invention has a first pump (14L) that discharges a first hydraulic oil, a second pump (14R) that discharges a second hydraulic oil, a pump/motor (14A) that discharges a third hydraulic oil, an arm cylinder (8) that at least the first hydraulic oil can flow into, and a boom cylinder (7) that at least the second hydraulic oil can flow into. When the arm cylinder (8) and the boom cylinder (7) operate simultaneously, the arm cylinder (8) is actuated by the first hydraulic oil or the third hydraulic oil, and the boom cylinder (7) is actuated by the second hydraulic oil.

Loading Sumitomo Heavy Industries collaborators
Loading Sumitomo Heavy Industries collaborators