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    汽車發動機氣缸體的檢測?

    來源:http://www.philiprobert.com發布時間:2021-04-27 16:20:01

    汽車氣缸體裂紋檢測
    Crack detection of automobile cylinder block
    磁性熒光探傷與磁力探傷的工作原理相同,區別在于前者將鐵粉加在熒光液里。當受測零件上生成磁場后,將鐵粉熒光液噴在零件上。在黑光燈下查看時,裂紋將顯現為鮮艷的白色亮條。
    The working principle of magnetic fluorescent flaw detection is the same as that of magnetic flaw detection, but the difference is that the former adds iron powder into the fluorescent liquid. When the magnetic field is generated on the tested part, the iron powder fluorescent liquid is sprayed on the part. When viewed under the black light, the crack will appear as a bright white bar.
    染色滲透劑多用于查找鋁制件(鋁缸蓋、鋁缸體及鋁歧管)中的裂紋,也可以用于不能使用磁力探傷的鑄鐵件。
    Dye penetrant is mostly used to find cracks in aluminum parts (aluminum cylinder head, aluminum cylinder block and aluminum manifold), and can also be used for iron castings that cannot be detected by magnetic detection.
    氣缸體翹曲檢測
    Cylinder block warpage detection
    缸體表面不平度或缸體上平面的翹曲用直尺和塞尺測量。如果舊的氣缸墊燒穿或泄漏,應進行此項檢查。新型鋁缸體容易扭曲變形,也應進行此項檢查。檢查時應在下圖所示的六個方向上進行氣缸體上表面變形量的測量。
    The surface unevenness of the cylinder block or the warpage of the upper plane of the cylinder block shall be measured with a ruler and a feeler gauge. If the old cylinder head gasket is burnt out or leaked, this inspection should be carried out. The new aluminum cylinder block is easy to twist and deform, so this inspection should also be carried out. During the inspection, measure the deformation of the upper surface of the cylinder block in the six directions shown in the figure below.

                                                     濟南大眾汽車保養
    氣缸孔壁外觀檢測
    Appearance inspection of cylinder bore wall
    由氣缸底部點一個燈照亮氣缸,檢查缸壁有無麻坑、裂紋或由過熱和摩擦造成的擦傷或拉傷。檢查缸壁有無活塞環折斷造成的拉傷,檢查有無因連桿彎曲造成的擦痕。還應檢查缸壁的交叉網紋,網紋磨光是磨損過度的一個明顯跡象。
    Light up the cylinder with a light at the bottom of the cylinder, and check the cylinder wall for pits, cracks or scratches or strains caused by overheating and friction. Check the cylinder wall for strain caused by broken piston rings and for scratches caused by bent connecting rod. The cylinder wall should also be checked for cross netting, which is an obvious sign of excessive wear.
    氣缸孔測量檢查
    Measurement and inspection of cylinder bore
    在缸筒頂部下面3 個測量高度上測量缸筒的內徑。首先在曲軸的垂直方向( 成十字或在90°處)測量, 然后再讀取另外兩個讀數。在缸筒頂部附近的十字交叉位置測量缸徑。在缸筒中部附近測量,然后測量缸筒底部。
    Measure the inner diameter of the cylinder at three measuring heights below the top of the cylinder. First, in the vertical direction of the crankshaft (crossed or at 90 degrees) ° Then take another two readings. Measure the cylinder diameter at the cross position near the top of the cylinder. Measure near the middle of the cylinder, then measure the bottom of the cylinder.

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