53results about How to "Avoid deformation and fracture" patented technology

An improved window-type air conditioner for easy installation includes: a main unit having a base plate on which heavy components of the air conditioner, such as a compressor, and indoor and outdoor heat-exchangers, are mounted; a cabinet for receiving the main unit through an opening in the front side thereof; and an inclination section for maintaining a predetermined downward inclination of the main unit in the cabinet. The inclination section includes at least two guide rails formed on a bottom of the cabinet at a predetermined downward inclination toward the outside for supporting the lower side of the base plate.

A terminal fitting (T) includes an inner conductor (11), an outer conductor (12) and a dielectric (13) interposed between these conductors. The inner conductor (11) is connected to a core (51) of a shielded cable (W). The outer conductor (12) includes two shield crimping pieces (45) deformable along an outer periphery of a braided wire (53) of the shielded cable (W). Further, the terminal fitting (T) includes a cover (14) including a shield-side surrounding portion (84) for surrounding the shield crimping pieces (45) along outer peripheries thereof.

The invention discloses a wellhead suspension device suitable for small-diameter coiled tubing operations, including a hanger, a conversion device and a guide device; the hanger is used for hanging small-diameter coiled tubing at the wellhead, and at the same time plays a role of sealing the small-diameter coiled tubing and gas well tubing ring The role of space, by changing the internal structure of the hanger, the passage and suspension requirements of the small-diameter coiled tubing downhole tool string with the upper, lower, and larger "┻" structures are realized; the conversion device is used to connect the blowout prevention system during daily injection operations, providing Daily blowout prevention, and at the same time, it is used to connect the guiding device when the small-diameter coiled tubing is suspended at the wellhead, which can prevent the small-diameter coiled tubing from being deformed and broken due to excessive bending.

The invention discloses a mounting and fixing method of a fixed structure for mounting a micro-motor. The method comprises the steps as follows: (a) a mounting hole of a micro-motor mounting plate is aligned at the mounting hole of an air conditioner shell; two elastic arms are extruded inwards to deform; the upper end of a movable limiting rod is clamped into a groove of a limiting arm; the movable limiting rod rotates around a hinge point by inward force of the limiting arm; and the upper end of the movable limiting rod is propped against the inner walls of the elastic arms provided with support rods; and (b) the two elastic arms pass through the mounting hole of the micro-motor mounting plate and the mounting hole of the air conditioner shell; the inward extrusion force to the two elastic arms is removed; the two elastic arms return towards two sides; two limiting blocks are clamped on the lower end surface of the air conditioner shell for limiting; and a pressing seat is pressed on the upper end surface of the micro-motor mounting plate. The mounting and fixing method has the advantages that (1) the mounting and fixing method is convenient to mount and dismantle and firm to connect, and damage to the micro-motor mounting plate and the air conditioner shell is avoided; and (2) deformation and fracture of the elastic arms due to overlarge pressure are avoided.

The invention specifically relates to a high-strength low-yield-ratio steel and its preparation method and application, belonging to the technical field of steelmaking. The high-strength low-yield ratio steel provided by the invention, in terms of mass fraction, has a chemical composition comprising: : C: 0.055~0.065%, Si: 0.10~0.30%, Mn: 1.80~2.10%, P: ≤0.008%, S: ≤0.0015%, Alt: 0.02~0.04%, Nb: 0.07~0.08%, Ti: 0.010~0.020%, Ni: 0.20~0.50%, Cr: 0.15~0.30%, Cu: 0.15~0.30%, Mo: 0.15~0.30%, the balance is Fe and unavoidable impurity elements; the high strength provided by the present invention Low yield ratio steel with the following properties: tensile strength of 760-800MPa, yield ratio of 0.70-0.75, toughness of ‑40°C Charpy impact energy ≥ 400J, and excellent dynamic fatigue resistance, ‑40 ℃ Charpy impact shear area ≥ 90%.