行业组件数据 · 2026

上下压板

Upper and lower platens are precision-machined flat plates that apply uniform pressure to form industrial washing machine drums in hydraulic presses.

技术定义与适配语境
典型 上下压板 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。

Upper and lower platens are critical components in industrial washing machine drum forming presses, consisting of two parallel, rigid plates that sandwich sheet metal during the forming process. The upper platen descends under hydraulic pressure to shape the material against the stationary lower platen, creating precise drum geometries with consistent wall thickness and dimensional accuracy. These platens are engineered to withstand extreme compressive forces while maintaining flatness tolerances within 0.05mm/m² to prevent material wrinkling or uneven forming.

组件规格

定义
Upper and lower platens are critical components in industrial washing machine drum forming presses, consisting of two parallel, rigid plates that sandwich sheet metal during the forming process. The upper platen descends under hydraulic pressure to shape the material against the stationary lower platen, creating precise drum geometries with consistent wall thickness and dimensional accuracy. These platens are engineered to withstand extreme compressive forces while maintaining flatness tolerances within 0.05mm/m² to prevent material wrinkling or uneven forming.
工作原理
The platens operate on hydraulic pressure transmission principles. When activated, the hydraulic cylinder drives the upper platen downward with controlled force (typically 500-2000 tons), while the lower platen remains fixed. The sheet metal blank is positioned between them, and as pressure increases, the material plastically deforms into the desired drum shape through a combination of bending, stretching, and drawing mechanics. Precision alignment guides ensure parallel movement throughout the stroke.
材料
High-strength alloy steel (AISI 4140 or equivalent)heat-treated to 40-45 HRC hardness with nitrided surface treatment (0.3-0.5mm depth) for wear resistance. Alternative: Ductile iron (Grade 80-55-06) for cost-sensitive applications.
Parallelism
≤0.1mm total
Platen dimensions
2500×1500×300mm (typical)
Surface roughness
Ra 0.8μm
Flatness tolerance
≤0.05mm/m²
Mounting hole pattern
ISO 273 medium series
Maximum pressure capacity
2000 tons
Temperature operating range
-10°C to 80°C
标准
ISO 1219-2DIN 24342ISO 2768-mK

行业分类与别名

上下压板 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

Cyclic loading exceeding material endurance limit->Fatigue cracks initiating from mounting holes->Implement finite element analysis (FEA) during design, use shot peening to induce compressive stresses, schedule non-destructive testing every 6 months
Abrasive wear from sheet metal contact->Increased surface roughness affecting material release->Apply tungsten carbide coating to high-wear areas, use lubricated blanks, establish preventive grinding at 0.1mm wear depth
Thermal gradients during continuous operation->Loss of flatness due to uneven expansion->Install cooling channels in platen design, monitor temperature with embedded sensors, implement cooldown cycles between batches

工业生态与工程逻辑

0
Fatigue cracking under cyclic loading
1
Surface wear leading to dimensional inaccuracy
2
Misalignment causing asymmetric forming
3
Thermal expansion affecting flatness

合规与检测

tolerance
Geometric tolerances per ISO 2768-mK, flatness per ISO 1219-2 Class B
test method
Laser interferometry for flatness verification, ultrasonic testing for internal defects, coordinate measuring machine (CMM) for dimensional accuracy

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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 maintenance is required for press platens?

Regular inspection for flatness (quarterly), surface cleaning to prevent material adhesion, lubrication of guide systems monthly, and hardness testing annually to detect wear.

Can platens be resurfaced if worn?

Yes, through precision grinding up to 5mm total material removal, followed by re-nitriding to restore surface hardness, provided structural integrity is maintained.

How do platens affect product quality?

Platen flatness directly impacts material flow uniformity—deviations cause wrinkles, thinning, or dimensional inconsistencies in formed drums.

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CNFX Industrial Component Index · 机械和设备制造

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URN:CNFX:ME:UNIT:UPPER_AND_LOWER_PLATENS