行业组件数据 · 2026

螺纹嵌件

繁體:螺紋嵌件

螺纹嵌件是工程紧固装置,设计用于永久安装到较软或脆性材料中,以提供坚固、耐磨且可重复使用的内螺纹。

技术定义与适配语境
典型 螺纹嵌件 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

螺纹嵌件是工程紧固装置,设计用于永久安装到较软或脆性材料(如塑料、复合材料或软金属)中,以提供坚固、耐磨且可重复使用的内螺纹。在探头安装块中,它们对于将探头、传感器或其他附件牢固地连接到安装块上至关重要,允许反复装配和拆卸而不会损坏基体材料。它们能有效分布载荷,防止基体材料中的螺纹失效。 螺纹嵌件的工作原理是将其安装到基体材料上预钻的孔中。安装方法(如压入、超声波插入、热插入或自攻)会使嵌件的外部特征(如滚花、肋或倒钩)变形,从而将其牢固锁定到位。这创建了一个永久的金属对金属螺纹接口。当配合的螺钉或螺栓旋入嵌件时,载荷通过嵌件坚固的金属体传递到基体材料上更大的面积,防止应力集中和螺纹拉脱。

组件规格

定义
螺纹嵌件是工程紧固装置,设计用于永久安装到较软或脆性材料(如塑料、复合材料或软金属)中,以提供坚固、耐磨且可重复使用的内螺纹。在探头安装块中,它们对于将探头、传感器或其他附件牢固地连接到安装块上至关重要,允许反复装配和拆卸而不会损坏基体材料。它们能有效分布载荷,防止基体材料中的螺纹失效。

螺纹嵌件的工作原理是将其安装到基体材料上预钻的孔中。安装方法(如压入、超声波插入、热插入或自攻)会使嵌件的外部特征(如滚花、肋或倒钩)变形,从而将其牢固锁定到位。这创建了一个永久的金属对金属螺纹接口。当配合的螺钉或螺栓旋入嵌件时,载荷通过嵌件坚固的金属体传递到基体材料上更大的面积,防止应力集中和螺纹拉脱。
工作原理
Threaded inserts work by being installed into a pre-drilled hole in the base material. Installation methods (such as press-fitting, ultrasonic insertion, thermal insertion, or self-tapping) deform the insert's external features (like knurls, ribs, or barbs) to lock it securely in place. This creates a permanent, metal-on-metal threaded interface. When a mating screw or bolt is threaded into the insert, the load is transferred through the insert's robust metal body into the base material over a larger area, preventing stress concentration and thread pull-out.
材料
常见材料包括黄铜(C36000具有良好的机加工性和耐腐蚀性)、不锈钢(AISI 303/304/316具有高强度和耐腐蚀性)、碳钢(通常镀锌或镀镍)以及铝合金(用于轻量化应用)。材料选择取决于所需的强度、耐腐蚀性、热性能以及与基体材料的兼容性。
Thread Size
M3 to M12 (metric) or #4-40 to 1/2-13 (imperial) are common
Insert Length
Typically 1.5D to 3D of thread diameter
Pull-Out Strength
Rated in Newtons or pounds-force (e.g., 2000-10000 N)
Installation Torque
Varies by size and material (e.g., 1-10 Nm)
Installation Hole Diameter
Precision-drilled to specific size per insert design
Operating Temperature Range
-40°C to +120°C (standard), up to +800°C for high-temp variants
标准
ISO 7379ISO 15480DIN 7967DIN 929ISO 10664

行业分类与别名

螺纹嵌件 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Incorrect hole size or depth during block machining.->Insert does not seat properly, leading to low pull-out strength, misalignment, or spinning.->Implement strict process controls for drilling operations, use calibrated gauges, and follow manufacturer-specified hole preparation guidelines.
Cross-threading during probe screw installation.->Damage to internal threads of insert, requiring rework or replacement of the entire mounting block.->Use alignment guides or fixtures for initial screw engagement, train operators on proper hand-threading techniques, and consider using screws with lead-in threads.
Material incompatibility (e.g., stainless steel insert in aluminum block without isolation).->Galvanic corrosion, leading to thread seizure, reduced strength, and potential block failure.->Select insert materials compatible with the base material (e.g., brass for aluminum), use corrosion-resistant coatings, or apply anti-seize compounds during assembly.

工业生态与工程逻辑

0
Improper installation leading to insert spinning or pull-out
1
Galvanic corrosion between dissimilar insert and base materials
2
Thread damage from cross-threading during probe installation
3
Thermal expansion mismatch causing stress cracks

合规与检测

tolerance
Thread tolerance typically 6H per ISO 965-1 for internal threads. Installation hole diameter tolerance: ±0.05 mm for press-fit types.
test method
Pull-out strength tested per ISO 898-1 or ASTM F606. Torque-to-failure tested per ISO 16047. Dimensional inspection per ISO 2768-mK.

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制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the main advantage of using a threaded insert in a probe mounting block?

The primary advantage is creating durable, reusable threads in materials (like aluminum or plastic blocks) that would otherwise wear out or strip with direct threading. This allows for repeated installation and removal of probes without damaging the mounting block.

How do I choose the right installation method for a threaded insert?

Selection depends on the base material and production requirements. Press-fit inserts are for rigid plastics/metals, ultrasonic inserts for thermoplastics, thermal inserts for high-volume thermoplastic molding, and self-tapping inserts for softer materials. Consult manufacturer datasheets for compatibility.

Can threaded inserts be used in high-vibration environments?

Yes, but specific designs like helical wire inserts (e.g., Helicoil) or key-locked inserts are recommended for high-vibration applications (e.g., automotive or aerospace probe mounts) as they resist loosening better than standard press-fit types.

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URN:CNFX:ME:UNIT:THREADED_INSERTS