CN210266236U

CN210266236U - Rectangular process pipe with chamfer at automobile engine hole site

Info

Publication number: CN210266236U
Application number: CN201920603346.9U
Authority: CN
Inventors: 俞新星
Original assignee: Shanghai Zunma Auto Pipe Co ltd
Current assignee: Shanghai Zunma Auto Pipe Co ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-04-07
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses an automobile engine hole site area chamfer rectangle technology pipe, its characterized in that, by tensile strength for being more than or equal to 520MPa, the yield strength is more than or equal to 210MPa, the percentage elongation is welded after rolling up for the stainless steel sheet material that is more than or equal to 35%, wherein the external diameter is 12mm x 30mm, the wall thickness is 0.7-1.5mm, the external diameter tolerance control is within 0.2 mm; the straightness is controlled to be 2.5 mm/m; a plurality of holes are uniformly distributed on the wall of one short side of the rectangular process pipe with the chamfer at the hole site of the automobile engine along the axial direction, and a chamfer of 0.4-0.8mm is poured at the outer end of each hole. The stainless steel rectangular tube for the gasoline engine has the characteristics of difficult corrosion, difficult deformation, high strength, good safety, long service life, good sealing property, convenience for installing other matched parts and the like. Can be used as the main fluid and gas conveying pipeline of the gasoline engine transmission system.

Description

Rectangular process pipe with chamfer at automobile engine hole site

Technical Field

The utility model relates to an automobile engine is pipe technical field for transmission system, in particular to automobile engine hole site area chamfer rectangle technology pipe.

Background

The engine is the heart of the automobile and provides power for the walking of the automobile, and the dynamic property, the economical efficiency and the environmental protection property of the automobile are all the same. The engine is simply an energy conversion mechanism, namely the heat energy of gasoline (diesel oil) or natural gas is converted into mechanical energy by pushing a piston to do work when the combustion gas expands in a sealed cylinder, which is the most basic principle of the engine. Complex transmission systems are required to achieve this function, and the transmission systems cannot be separated from the pipeline. The pipelines used by the existing engine transmission system are all made of carbon steel or other materials, and have the defects of easy corrosion, easy deformation, low strength, poor safety, short service life, poor sealing property and the like.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a stainless steel rectangular new process pipe for a gasoline engine aiming at the problems of the pipeline used by the existing engine transmission system; the stainless steel rectangular pipe for the gasoline engine has the characteristics of corrosion resistance, deformation resistance, high strength, good safety, long service life, good sealing property and the like, and is a main fluid, gas and other conveying pipeline of a gasoline engine transmission system.

The utility model discloses the technical problem that will solve can realize through following technical scheme:

the rectangular process pipe with the chamfer at the hole site of the automobile engine is formed by rolling and welding stainless steel plates with the tensile strength of more than or equal to 520MPa, the yield strength of more than or equal to 210MPa and the elongation of more than or equal to 35 percent, wherein the outer diameter is 12mm multiplied by 30mm, the wall thickness is 0.7-1.5mm, and the tolerance of the outer diameter is controlled within +/-0.2 mm; the straightness is controlled to be 2.5 mm/m; a plurality of holes are uniformly distributed on the wall of one short side of the rectangular process pipe with the chamfer at the hole site of the automobile engine along the axial direction, and a chamfer of 0.4-0.8mm is poured at the outer end of each hole.

The stainless steel rectangular tube for the gasoline engine has the characteristics of difficult corrosion, difficult deformation, high strength, good safety, long service life, good sealing property, convenience for installing other matched parts and the like. Can be used as the main fluid and gas conveying pipeline of the gasoline engine transmission system.

Drawings

Fig. 1 is the structure schematic diagram of the rectangular process pipe with chamfer at the hole site of the automobile engine.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 to 4, the rectangular process tube 1 with chamfers at the hole site of the automobile engine shown in the figures is formed by rolling and welding stainless steel plates with tensile strength of more than or equal to 520MPa, yield strength of more than or equal to 210MPa and elongation of more than or equal to 35%, wherein the outer diameter is 12mm multiplied by 30mm, the wall thickness is 0.7-1.5mm, and the tolerance of the outer diameter is controlled within +/-0.2 mm; the straightness is controlled to be 2.5 mm/m; a plurality of holes 2 are uniformly distributed on a short-side pipe wall 1a of a rectangular process pipe 1 with chamfers at the hole site of an automobile engine along the axial direction, and chamfers C of 0.4-C0.8mm are poured at the outer end of each hole 2. The length of the tube can be cut according to the requirement.

The utility model discloses a 4 flat 5 stand to pay 9 continuous finishing techniques of mould altogether, with external diameter accuracy control in 0.2mm tolerance range, adopted a punching press, seted up a plurality of holes 2 and accomplished the punching press of chamfer C simultaneously along the axial equipartition on automobile engine hole site area chamfer rectangle technology pipe 1's a minor face pipe wall 1a to obtain 2 pipes of taking chamfer C that punch a hole, reduce the sub-assembly of customer's back assembly, reduce the cost of product.

By the control method, uniform and consistent products meeting or exceeding the requirements of customers and national standards are obtained.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The rectangular process pipe with the chamfer at the hole site of the automobile engine is characterized by being formed by rolling and welding stainless steel plates with the tensile strength of more than or equal to 520MPa, the yield strength of more than or equal to 210MPa and the elongation of more than or equal to 35 percent, wherein the outer diameter is 12mm multiplied by 30mm, the wall thickness is 0.7-1.5mm, and the tolerance of the outer diameter is controlled within +/-0.2 mm; the straightness is controlled to be 2.5 mm/m; a plurality of holes are uniformly distributed on the wall of one short side of the rectangular process pipe with the chamfer at the hole site of the automobile engine along the axial direction, and a chamfer of 0.4-0.8mm is poured at the outer end of each hole.