昆山瑞腾精密自动化有限公司

昆山瑞腾精密自动化有限公司

产品名称:压铸机用ASK耐震压力表

产品型号:AKS-G1/2-100X40MPa-GR14.5

产品报价:

产品特点:AKS-G1/2-100X40MPa-GR14.5日本压铸机用ASK耐震压力表,在压铸机的运行与控制中,压力表的选择需结合其核心工作环节(如锁模、压射、保压、液压系统)的压力特性、精度需求及工况环境,不存在单一通用型压力表,而是需根据具体功能模块匹配专用类型。

AKS-G1/2-100X40MPa-GR14.5压铸机用ASK耐震压力表的详细资料:

AKS-G1/2-100X40MPa-GR14.5日本压铸机用ASK耐震压力表

压铸机需要使用什么压力表

在压铸机的运行与控制中,压力表的选择需结合其核心工作环节(如锁模、压射、保压、液压系统)的压力特性、精度需求及工况环境,不存在单一通用型压力表,而是需根据具体功能模块匹配专用类型。以下是压铸机各关键系统对应的压力表选型方案,及核心选型参数说明:

一、压铸机核心系统与对应压力表类型

压铸机的压力控制集中在液压系统和压射系统两大模块,不同模块对压力表的功能需求差异显著,具体匹配如下:


核心作用推荐压力表类型选型原因与优势
液压动力系统监测油泵出口、主油路压力(如锁模缸、顶出缸供油压力)耐震压力表(或充油式)液压系统压力波动频繁(如换向阀切换时),充油(甘油 / 硅油)可阻尼指针抖动,避免读数误差;外壳防震动损坏,适应压铸机高频震动工况。
压射系统(低压 / 高压)精准监测压射速度切换压力、高速压射压力、保压压力数显压力表(带峰值记忆功能)压射过程压力变化极快(毫秒级),机械表指针响应滞后,数显表可实时捕捉瞬时压力值;峰值记忆功能可记录保压阶段最大压力,便于工艺调试与质量追溯。
模具冷却水路监测冷却 water 压力(防止水路堵塞、确保冷却效率)普通铜接头压力表(低压型)冷却水路压力低(通常 0.3-0.8MPa),无剧烈震动,普通低压压力表(量程 0-1.6MPa)即可满足,成本低且读数直观。
气动辅助系统监测气动元件(如料饼推出、模具清洁气缸)压力气动专用压力表(带压力调节阀)气动压力稳定(通常 0.4-0.6MPa),需搭配调节阀实现压力微调,压力表量程多为 0-1MPa,接口适配气动管路(如 G1/4 螺纹)。








AKS-G1/2-100X40MPa-GR14.5日本压铸机用ASK耐震压力表

无论选择哪种类型,需重点关注以下 5 个参数,避免因选型不当导致测量不准或设备损坏:

1. 量程(量程比 1.5-2 倍为宜)

压铸机各系统压力范围差异大,量程需覆盖实际工作压力的 1.5-2 倍(避免过载损坏,同时保证精度):

液压主油路:通常工作压力 12-25MPa,选0-40MPa量程;

压射保压:工作压力 30-50MPa,选0-60MPa量程;

冷却水路 / 气动系统:工作压力 0.3-0.8MPa,选0-1.6MPa量程。

2. 精度等级(关键环节≥1.6 级)

精度等级代表测量误差范围,压铸机不同环节要求不同:

核心控制环节(压射、保压):需1.0 级或 1.6 级(误差≤1.6%),确保压射力精准控制(直接影响铸件密度、缺陷率);

辅助环节(冷却、气动):可选2.5 级(误差≤2.5%),满足基础压力监测即可。

3. 接口规格(匹配压铸机管路)

压力表接口需与压铸机液压 / 气动管路螺纹一致,常见规格:

液压系统:G1/4,G3/8,G1/2


4. 耐温与耐腐蚀性能(适应压铸环境)

压铸车间存在高温(模具散热)、油雾、冷却液(如水基脱模剂),压力表需满足:

环境温度:-20℃~80℃(常规耐震表可覆盖);

介质兼容性:液压系统选铜合金或不锈钢接头(耐液压油腐蚀);冷却水路选不锈钢接头(防水垢、防锈)。

5. 防护等级(防粉尘、防油雾)

压铸车间粉尘、油雾较多,压力表防护等级需≥IP65(防尘、防喷射状液体),避免内部元件污染导致故障。

三、选型注意事项

避免 “大马拉小车":如压射系统实际压力 50MPa,若选 0-100MPa 量程,会导致小压力变化无法识别,影响工艺精度;

优先选 “耐震型":压铸机工作时震动剧烈,普通非耐震表指针易卡滞、表盘易碎裂,寿命通常不足 3 个月,而耐震表寿命可达 1-2 年;

数显表需带信号输出:若需接入压铸机 PLC 系统(实现自动压力监控、报警),数显表需支持 4-20mA 模拟量输出或 RS485 通讯功能;

定期校准:根据《压铸机维护规范》,压力表需每 6 个月校准 1 次(送至计量机构),确保测量精度,避免因压力误判导致铸件报废或设备过载。

总结

压铸机压力表选型的核心逻辑是:“按系统选类型,按工况定参数"—— 液压主油路用耐震机械表,压射 / 保压用高精度数显表,辅助系统用普通低压表,同时严格匹配量程、精度、接口与防护等级,才能确保压力监测精准、设备稳定运行。

压铸机用耐震压力表

在压铸机的液压动力系统(如锁模缸、顶出缸、主油路)中,耐震压力表(充油式压力表)是核心监测部件,其设计专门应对压铸机高频震动、压力波动频繁的工况,能稳定显示油路压力,避免因震动导致的读数误差或设备损坏。以下从选型关键参数、适用场景、安装维护要点三方面,详细说明压铸机用耐震压力表的核心信息:

一、压铸机用耐震压力表的核心选型参数(必须匹配)

压铸机液压系统压力高、震动强,选型时需重点锁定以下 6 个参数,直接影响测量精度与使用寿命:

1. 量程:按液压系统实际压力的 1.5-2 倍选择

压铸机液压主油路的工作压力通常为 12-25MPa(中小型压铸机)或 25-35MPa(大型压铸机,如压铸汽车结构件),因此量程需覆盖该范围且留有余量:

中小型压铸机(12-25MPa 工作压力):优先选 0-40MPa 量程;

大型压铸机(25-35MPa 工作压力):优先选 0-60MPa 量程;

严禁选量程过大(如 0-100MPa),否则小压力波动无法识别,导致锁模力、顶出力控制不准;也不能选量程过小(如 0-25MPa),易因压力过载导致表芯损坏。

2. 精度等级:≥1.6 级(核心要求)

液压系统压力监测直接影响锁模稳定性(防止飞边)、顶出力度(避免铸件变形),精度等级需满足:

主油路关键监测点(如油泵出口、锁模缸压力):选 1.0 级(误差≤1.0%),确保压力控制精准;

次要油路(如辅助顶出缸):可选 1.6 级(误差≤1.6%),平衡精度与成本;

低于 2.5 级的耐震表不建议使用,会因误差过大导致工艺参数误判。

3. 充油类型:根据环境温度选甘油或硅油

耐震表的 “耐震" 核心来自表壳内填充的阻尼油,需根据压铸车间温度选择:

常规环境(-10℃~60℃):选 甘油填充(阻尼效果好,成本低,适合多数压铸车间);

低温环境(-20℃~40℃)或高温环境(50℃~80℃):选 硅油填充(耐高低温,粘度稳定,避免低温凝固或高温变稀导致的指针抖动);

4. 接口规格:匹配液压管路螺纹

必须与压铸机液压管路的接口螺纹一致,否则会导致漏油,常见规格:

国内压铸机(如力劲、伊之密):主流 M20×1.5(大口径油路)、M14×1.5(小口径辅助油路);

进口压铸机(如布勒、宇部):多为 G1/4(英制螺纹);

若接口不匹配,需搭配专用转换接头(如 M20×1.5 转 G1/4),且接头需选黄铜或不锈钢材质(耐液压油腐蚀)。

5. 材质:抗腐蚀、耐冲击

压铸车间存在液压油、脱模剂(部分为酸性)、高温粉尘,材质需满足:

表壳:不锈钢 304(防碰撞变形,耐油雾腐蚀,比铁壳寿命长 3 倍以上);

表芯 / 接头:铜合金(H62 黄铜)或不锈钢 316(黄铜适合普通液压油,不锈钢 316 适合含腐蚀性添加剂的液压油或水 - 乙二醇液压液);

6. 防护等级:≥IP65

压铸车间粉尘多、油雾重,防护等级需达到 IP65(防尘,可防喷射状液体侵入),避免油雾渗入表芯导致指针卡滞,或粉尘堆积影响读数。

二、适用场景与优势

耐震压力表在压铸机中主要用于液压动力系统的压力监测,具体场景及优势如下:

锁模系统:监测锁模缸压力,确保锁模力足够(防止压射时模具张开产生飞边),耐震设计可避免锁模换向时的压力冲击导致指针抖动;

顶出系统:监测顶出缸压力,控制顶出力大小(防止顶出过猛导致铸件开裂),稳定读数便于工艺调试;

主油路 / 油泵出口:实时监测油泵工作压力,若压力异常(如骤降、超压)可及时停机,避免油泵过载损坏;

优势对比:相较于普通非耐震压力表,其寿命从 3-6 个月延长至 1-2 年,读数误差降低 50% 以上,能适应压铸机 10-50Hz 的高频震动。

三、安装与维护要点(延长寿命 + 保证精度)

安装位置:远离震动源 + 便于读数

避免直接安装在油泵、电机等强震动部件旁,可通过 “压力缓冲管"(如盘管式缓冲器)连接,减少震动传递;

安装高度需与操作人员视线平齐(通常 1.5-1.8m),表盘朝向正面,避免逆光读数。

安装方式:垂直安装(优先)

耐震压力表需垂直安装(表盘与地面垂直),若水平安装,阻尼油会偏向一侧,影响阻尼效果,导致指针响应变慢。

定期维护:2 个关键动作

定期排气:新表安装或长期使用后,表壳内可能残留空气(导致指针跳动),需打开表壳顶部的排气螺丝,排出空气后重新拧紧;

定期校准:按《压铸机维护规范》要求,每 6 个月送计量机构校准 1 次,若发现指针卡滞、读数偏差超 10%,需立即更换,避免因压力误判导致铸件报废或设备故障。

异常处理:3 种常见问题解决

指针不动:可能是表芯堵塞(液压油杂质过多),需拆解清洗或直接更换;

读数波动过大:检查阻尼油是否泄漏(表壳内油位下降),若泄漏需补充对应型号的阻尼油;

接头漏油:更换密封垫片(选耐油丁腈橡胶材质),或重新缠绕生料带(注意缠绕方向与螺纹旋向一致)。

总结

压铸机用耐震压力表的选型核心是 “量程匹配 + 精度达标 + 材质耐腐",优先选择不锈钢壳、1.0-1.6 级精度、甘油 / 硅油填充的型号,安装时远离震动源并垂直固定,定期校准维护,才能确保液压系统压力监测稳定,为压铸工艺精度和设备安全提供保障。


AKS-G1/2-100X40MPa-GR14.5 ASK Vibration-Resistant Pressure Gauge for Die-Casting Machines (Japan)

What Pressure Gauge is Required for Die-Casting Machines?

In the operation and control of die-casting machines, the selection of pressure gauges must be based on the pressure characteristics, accuracy requirements, and working environment of core processes such as mold clamping, injection, pressure holding, and the hydraulic system. There is no single universal pressure gauge; instead, dedicated types must be matched to specific functional modules. Below is the pressure gauge selection scheme for each key system of die-casting machines, along with core selection parameters.

I. Core Systems of Die-Casting Machines and Corresponding Pressure Gauge Types

Pressure control of die-casting machines focuses on two major modules: the hydraulic system and the injection system, with significantly different functional requirements for pressure gauges between modules. The matching details are as follows:
表格
Core FunctionRecommended Pressure Gauge TypeReasons & Advantages
Hydraulic Power System
(Monitors pressure at the oil pump outlet and main oil circuit, e.g., clamping cylinder, ejector cylinder supply pressure)
Vibration-resistant (oil-filled) pressure gaugeFrequent pressure fluctuations in the hydraulic system (e.g., during directional valve switching); oil filling (glycerin/silicone oil) damps pointer flutter and avoids reading errors. The case is shockproof, adapting to the high-frequency vibration of die-casting machines.
Injection System (Low/High Pressure)
(Precisely monitors injection speed switching pressure, high-speed injection pressure, and pressure holding pressure)
Digital pressure gauge (with peak memory function)Pressure changes extremely fast (millisecond-level) during injection, causing slow response of mechanical gauge pointers. Digital gauges capture instantaneous pressure values in real time. The peak memory function records the maximum pressure during pressure holding, facilitating process debugging and quality traceability.
Mold Cooling Water Circuit
(Monitors cooling water pressure to prevent blockage and ensure cooling efficiency)
Standard brass-connection pressure gauge (low-pressure type)Low pressure in the cooling water circuit (typically 0.3–0.8MPa) with no severe vibration. A standard low-pressure gauge (0–1.6MPa range) suffices, offering low cost and intuitive readings.
Pneumatic Auxiliary System
(Monitors pressure of pneumatic components such as cake ejection and mold cleaning cylinders)
Special pneumatic pressure gauge (with pressure regulating valve)Stable pneumatic pressure (typically 0.4–0.6MPa), requiring a regulating valve for fine pressure adjustment. Most have a 0–1MPa range and interfaces compatible with pneumatic pipelines (e.g., G1/4 thread).

AKS-G1/2-100X40MPa-GR14.5 ASK Vibration-Resistant Pressure Gauge for Die-Casting Machines (Japan)

Whichever type is selected, the following 5 key parameters must be prioritized to avoid inaccurate measurement or equipment damage due to improper selection.

1. Measuring Range (1.5–2 times the working pressure is recommended)

Pressure ranges vary widely across die-casting machine systems. The range must cover 1.5–2 times the actual working pressure (to prevent overload damage while ensuring accuracy):
  • Main hydraulic oil circuit: typical working pressure 12–25MPa → select 0–40MPa

  • Injection & pressure holding: working pressure 30–50MPa → select 0–60MPa

  • Cooling water circuit / pneumatic system: working pressure 0.3–0.8MPa → select 0–1.6MPa

2. Accuracy Class (≥1.6 for critical processes)

Accuracy class represents the measurement error range, with different requirements for different die-casting machine sections:
  • Critical control sections (injection, pressure holding): Class 1.0 or 1.6 (error ≤1.6%) required to ensure precise control of injection force (directly affecting casting density and defect rate).

  • Auxiliary sections (cooling, pneumatics): Class 2.5 (error ≤2.5%) acceptable for basic pressure monitoring.

3. Connection Specification (Matching Die-Casting Machine Pipelines)

Pressure gauge threads must match hydraulic/pneumatic pipeline threads. Common specifications:
  • Hydraulic systems: G1/4, G3/8, G1/2

4. Temperature & Corrosion Resistance (Adapting to Die-Casting Environments)

Die-casting workshops feature high temperatures (mold heat dissipation), oil mist, and cooling agents (e.g., water-based release agents). Pressure gauges must meet:
  • Ambient temperature: -20℃ ~ 80℃ (covered by standard vibration-resistant gauges)

  • Media compatibility: copper alloy or stainless steel connections for hydraulic systems (resist hydraulic oil corrosion); stainless steel connections for cooling water circuits (anti-scale, rustproof)

5. Protection Class (Dustproof & Oil Mist Resistant)

With heavy dust and oil mist in die-casting workshops, the protection class must be ≥IP65 (dustproof, resistant to splashing liquids) to avoid internal component contamination and failure.

III. Selection Notes

  • Avoid oversizing the range: e.g., actual injection pressure 50MPa with a 0–100MPa gauge will make small pressure changes unrecognizable, reducing process precision.

  • Prioritize vibration-resistant types: severe vibration during die-casting machine operation causes standard non-vibration-resistant gauges to stick or break, with a service life of less than 3 months. Vibration-resistant gauges last 1–2 years.

  • Digital gauges with signal output: for integration with the die-casting machine PLC (automatic pressure monitoring & alarms), digital gauges must support 4–20mA analog output or RS485 communication.

  • Regular calibration: per Die-Casting Machine Maintenance Specifications, calibrate gauges every 6 months at a metrology institution to ensure accuracy and prevent scrapped castings or equipment overload from misreadings.

Summary

The core logic for selecting die-casting machine pressure gauges is:
Choose type by system, define parameters by working conditions
  • Main hydraulic oil circuit: vibration-resistant mechanical gauge

  • Injection/pressure holding: high-precision digital gauge

  • Auxiliary systems: standard low-pressure gauge

Strictly match range, accuracy, connection, and protection class to ensure accurate pressure monitoring and stable equipment operation.

Vibration-Resistant Pressure Gauge for Die-Casting Machines

In the hydraulic power system of die-casting machines (clamping cylinders, ejector cylinders, main oil circuit), the vibration-resistant (oil-filled) pressure gauge is the core monitoring component. Designed specifically for high-frequency vibration and frequent pressure fluctuations, it stably displays oil circuit pressure and avoids reading errors or equipment damage caused by vibration. Below is key information on selection parameters, applications, installation, and maintenance.

I. Core Selection Parameters (Must Be Matched)

Given high pressure and strong vibration in die-casting machine hydraulic systems, the following 6 parameters directly affect accuracy and service life.

1. Range: 1.5–2 times the actual hydraulic system pressure

  • Small/medium die-casting machines (12–25MPa): 0–40MPa

  • Large die-casting machines (25–35MPa): 0–60MPa

2. Accuracy Class: ≥1.6 (minimum requirement)

  • Main oil circuit critical points: Class 1.0

  • Secondary oil circuits: Class 1.6

  • Class below 2.5 is not recommended.

3. Oil-Filled Type: Glycerin or Silicone Oil

  • General environment (-10℃~60℃): glycerin

  • Low/high temperature (-20℃~40℃ or 50℃~80℃): silicone oil

4. Connection Specification

  • Domestic machines: M20×1.5, M14×1.5

  • Imported machines: G1/4

5. Material

  • Case: SUS304 stainless steel

  • Movement/connection: brass alloy or SUS316 stainless steel

6. Protection Class: ≥IP65

II. Application Scenarios & Advantages

  • Mold clamping system: monitors clamping cylinder pressure

  • Ejection system: controls ejection force

  • Main oil circuit/pump outlet: real-time pressure monitoring

Compared to standard gauges, service life extends from 3–6 months to 1–2 years, reading error reduced by over 50%, adapting to 10–50Hz high-frequency vibration.

III. Installation & Maintenance

  • Install vertically, away from vibration sources, using a snubber tube if needed.

  • Vent air periodically to prevent pointer fluctuation.

  • Calibrate every 6 months.

  • Troubleshoot stuck pointer, unstable reading, or thread leakage promptly.

Summary

Select a stainless steel, Class 1.0–1.6, glycerin/silicone oil-filled vibration-resistant pressure gauge with properly matched range. Install correctly and maintain regularly to ensure stable hydraulic pressure monitoring, precise die-casting processes, and equipment safety.

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    请输入计算结果(填写阿拉伯数字),如:三加四=7
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