鑽尾自攻釘的技術要求 sae j 78 - 1998

1996年8月1日 · It is the objective of this document to ensure that carbon steel self-drilling tapping screws, by meeting the mechanical and performance requirements specified, shall drill a hole and form or cut mating threads in materials into which they are driven without deforming their own thread and without breaking during assembly.

全滲 碳深度是從 硬化的表面 到一個 與 化學 或物理性不相同之點 的距離 . 或者使用微小硬度轉 換 到硬度值HRC 42 時 之垂直距離 . 滲 碳表面和心 部不能明顯 的過 長 (參 閱 SAE J423). in 的位置測 試 . 當 全滲 碳深度£0.004 in 時 , 可用100g 的荷重在螺絲 表面下. in 處 測 試 . 當 檢 測 表面硬度和滲 碳深度時 , 為 確 保鑲 埋材料能適 當 支撐 , 讀 值將 取自從 中心到超過 中心線. 的範 圍 內 之縱 剖面測 量,以保証 在鑲 埋介質 中獲 得足夠 的支撐 . 在斷 面的金相試 樣 上量測 螺絲 外 …

5 天之前 · sae j78-2013的标准全文信息,该 sae 标准涵盖了适用于一般应用的碳钢自钻自攻螺钉的尺寸和一般规格，包括性能要求。 本标准的目的是确保碳钢自钻自攻螺钉满足规定的机械和性能要求，能够在其所驱动的材料中钻孔并形成或切割配合螺纹，而不会使其自身的螺纹 ...

It is the objective of this document to ensure that carbon steel self-drilling tapping screws, by meeting the mechanical and performance requirements specified, shall drill a hole and form or cut mating threads in materials into which they are driven without deforming their own thread and without breaking during assembly.

2021年7月28日 · It is the objective of this document to ensure that carbon steel self-drilling tapping screws, by meeting the mechanical and performance requirements specified, shall drill a hole and form or cut mating threads in materials into which they are driven without deforming their own thread and without breaking during assembly.

钻尾自攻钉的技术要求 sae j 78 - 1998

SAE J78 is a standard published by SAE International that covers the dimensional and general specifications for carbon steel self-drilling tapping screws. These screws are designed to drill, tap, and fasten in a single operation, making them ideal …

2022年4月14日 · This SAE Standard covers the dimensional and general specifications, including performance requirements, for carbon steel self-drilling tapping screws suitable for use in general applications having point Styles 2, 3, 4, and 5.

2025年3月4日 · SAE J78-2021的标准全文信息,钢制自钻孔自攻丝螺钉, Steel Self-Drilling Tapping Screws, 提供SAE J78-2021的发布时间、引用、替代关系、发布机构、适用范围等信息，也提供PDF预览（如果有PDF）以及下载地址（如果可以下载）。