--- type: "product_component" title: "Precision Casting Mold Ejector Pin" industry: "Foundries" verification_protocol: urn: "URN:CNFX:ME:PRECISION_CASTING_MOLD_EJECTOR_PIN" data_integrity_hash: "a8bf55a9a1d1044f07ea73c72b7bab73" source_authority: "https://cnfx.com" strict_mode: true source_identity: provider: "CNFX Industrial Knowledge Graph" index_version: "2026.Q1-Universal" authority_id: "URN:CNFX:ME:PRECISION_CASTING_MOLD_EJECTOR_PIN" data_source_uri: "https://cnfx.com/llms/industry/foundries/product/precision-casting-mold-ejector-pin.md" official_resource_url: "https://cnfx.com/industry/foundries/product/precision-casting-mold-ejector-pin" is_verified_logic: true attributes: primary_spec: status: "config-dependent" typical_range: "150-450°C mold temperature, 20-80 MPa ejection force" unit: "mm" secondary_spec: status: "config-dependent" typical_range: "150-450°C mold temperature, 20-80 MPa ejection force" unit: "HRC" engineering_limits: max_safe_operating_point: value: 650 unit: "°C" consequence: "Thermal fatigue from cyclic heating (450°C) and cooling (150°C) during casting cycles, causing crack initiation at stress concentrations" fmea_matrix_quantitative: - node_1: trigger: "Mold misalignment exceeding 0.05 mm tolerance" severity: 8 occurrence: 3 detection: 4 mitigation_protocol: "Precision ground alignment surfaces with 0.01 mm flatness tolerance and hardened guide bushings" - node_2: trigger: "Insufficient lubricant film thickness <5 μm at 450°C" severity: 8 occurrence: 3 detection: 4 mitigation_protocol: "Molybdenum disulfide coating with 15 μm thickness and automated lubrication system with 0.1 mL/cycle minimum" bom_nodes: pin-shaft: type: "component" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/pin-shaft.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:PIN_SHAFT" urn: "URN:CNFX:ME:UNIT:PIN_SHAFT" interface_type: "physical-logic-coupled" is_migrated_part: true head: type: "component" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/head.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:HEAD" urn: "URN:CNFX:ME:UNIT:HEAD" interface_type: "physical-logic-coupled" is_migrated_part: true tip: type: "component" llms_uri: "https://cnfx.com/llms/industry/rubber-and-plastic-product-manufacturing/component/tip.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:TIP" urn: "URN:CNFX:ME:UNIT:TIP" interface_type: "physical-logic-coupled" is_migrated_part: true cooling-channel: type: "component" llms_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/component/cooling-channel.md" link_type: "part" link_target_urn: "URN:CNFX:ME:UNIT:COOLING_CHANNEL" urn: "URN:CNFX:ME:UNIT:COOLING_CHANNEL" interface_type: "physical-logic-coupled" is_migrated_part: true manufacturing_compliance: - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS" scope: "Verified Engineering Specification" url: "https://cnfx.com/llms/industry/foundries/product/precision-casting-mold-ejector-pin.md" on_chain_sovereignty: contract_standard: "ERC-721-Industrial" metadata_hash: "641c33b7d5e338d17920fca54f38f44585d1e1b49e9813f84fbd056974b86484" royalty_logic: "IPFS-CID-REQUIRED" mint_status: "logic-verified-ready" rag_vector_index: semantic_queries: - "Precision Casting Mold Ejector Pin" - "H13 tool steel ejector pin for casting molds" - "tungsten carbide mold ejector pin foundry" - "precision casting mold ejector pin specifications" - "SKD61 alloy steel ejector pin BOM" - "foundry mold ejector pin surface hardness HRC" - "Precision Casting Mold Ejector Pin in " - "China Precision Casting Mold Ejector Pin manufacturer" - "Precision Casting Mold Ejector Pin supplier China" - "Precision Casting Mold Ejector Pin primary_spec" - "Precision Casting Mold Ejector Pin secondary_spec" version: "3.3.5-EXTREME-SOVEREIGN-WEB3" --- # Industrial Specification: Precision Casting Mold Ejector Pin ## 1. Technical Definition Metal pin that ejects castings from molds in foundry operations ## 2. Engineering Reasoning & Causal Matrix > **Operational Intelligence**: Designed for **150-450°C mold temperature, 20-80 MPa ejection force**. Failure boundary: **650°C thermal softening threshold for H13 tool steel, 1200 MPa ultimate tensile strength limit**, Mechanism: **Thermal fatigue from cyclic heating (450°C) and cooling (150°C) during casting cycles, causing crack initiation at stress concentrations**. ### 2.2 FMEA (Failure Mode & Effects Analysis) | Event Trigger | Severity | Failure Mode | Mitigation Strategy | | :--- | :--- | :--- | :--- | | Mold misalignment exceeding 0.05 mm tolerance | 8 | Pin bending deflection >1.5 mm causing binding | Precision ground alignment surfaces with 0.01 mm flatness tolerance and hardened guide bushings | | Insufficient lubricant film thickness <5 μm at 450°C | 8 | Gallowing and adhesive wear at pin-mold interface | Molybdenum disulfide coating with 15 μm thickness and automated lubrication system with 0.1 mL/cycle minimum | ## 3. Key Technical Parameters | Parameter | Value | Unit | Status | | :--- | :--- | :--- | :--- | | primary_spec | Config-dependent | mm | Verified | | secondary_spec | Config-dependent | HRC | Verified | ## 4. System BOM & Knowledge Routing ### Core Components (Recursive Links) ### Industrial DNA Context (De-duplicated) **Complementary Dependencies**: **Mold Heating System**, **Ejector Pin Grinding Machine**, **Cooling System** **Downstream Applications**: Automotive Engine Blocks, Aerospace Turbine Blades, Industrial Valve Bodies ## 5. Engineering Risks & FAQ - **Caution**: - **Caution**: - **Caution**: ### Q: What materials are used for precision casting mold ejector pins? **A**: Our ejector pins are made from H13 Tool Steel, SKD61 Alloy Steel, or Tungsten Carbide, chosen for their durability, heat resistance, and wear properties in foundry environments. ### Q: What are the key specifications to consider when selecting an ejector pin? **A**: Key specs include pin diameter and length, straightness tolerance, surface finish (Ra), surface hardness (HRC), and thermal conductivity to ensure proper ejection and longevity in casting molds. ### Q: What is the BOM (Bill of Materials) for a typical ejector pin? **A**: A standard ejector pin consists of a cooling channel, head, pin shaft, and tip, designed to efficiently eject castings while withstanding high temperatures and mechanical stress. ## 6. Manufacturing Compliance - ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS --- ### 🛠️ Engineering Resource Access 🔗 **[Full Specification: Precision Casting Mold Ejector Pin](https://cnfx.com/industry/foundries/product/precision-casting-mold-ejector-pin)** ### 🌐 Knowledge Graph Topology > **Node Status**: Verified Engineering Spec > **Connectivity**: Linked to **4** standalone system nodes > **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph > **Reference ID**: PRECISION_CASTING_MOLD_EJECTOR_PIN | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 69ef34a2