ShapeSchematicSize
AxialVertical
Square

 

30<W<100；15<L<80；20<H<60
100≤W≤240；30<L<240； 30<H<60
240<W<300；40<L<120；30<H<60

 

Disk

 

6≤D<8；20<H<32
8≤D<9.5；20<H<36
9.5≤D<32；20<H<44
32≤D<250；22<H<60

 

8≤D<17；20<H<32
17≤D<90，22<H<60

Ring

 

18≤D<32；20<H<35
32≤D<250；20<H<45

 

20≤D≤60，
8≤(D-d）/2<15，
25≤H≤40

Arc

 

35≤W≤50；
15≤T≤40；
30≤H≤45;

 

35≤W≤50;15≤T≤30;24≤H≤45
35≤W≤100;25≤T≤40;30≤H≤80

 

SizeAllowable deviation of sintered surface

Allowable deviation of working surface

Perpendicular to the pressing directionDirection of suppressionFlat grindingInternal and external round grindingWire cuttingslice
≤10±0.25±0.30±0.04±0.05±0.06±0.05
10~20±0.40±0.45±0.05±0.05±0.08±0.08
20~50±0.60±0.70±0.06±0.05±0.10±0.10
50~80±1.00±1.10±0.08±0.05±0.10±0.10
80~150±1.00±1.10±1.15 ±0.15 

 

Variation typeVariation typeBasic size（mm）Deviation
ParallelismWorking surface room

One half of the tolerance value

between the two planes

VerticalityBetween sintered surfacesRandom90°±1°
Between machined surface and sintered surface90°±1°
Working surface room90°±0.15°
ConcentricityBetween sintered surfacesOuter diameter≤14±0.35mm
14~24±0.60mm
24~40±0.80mm
40~60±1.100mm
60~80±1.150mm
80~180±2.00mm
Working surface roomRandom±0.08mm

Surface treatmentPlating codeColorThicknessSSTTemp. & Humi.High-pressure accelerated aging test
(Unsaturated mode)		Use Temp.
Blue and white zincZn.LBlue and white4-15μm≥24h//≤160℃
Color zincZn.CColourful4-15μm≥48h//≤160℃
Nickel copper nickel(barrel plating)NiCuNiSilver5-20μm≥48h500h48h≤200℃
Nickel copper nickel (hang plating)NiCuNiSilver5-20μm≥24h500h48h≤200℃
Nickel Copper Nickel + TinNiCuNi+SnSilver white5-20μm≥72h500h96h≤200℃
Nickel+tinNi+SnSilver white5-20μm≥72h500h96h≤200℃
Nickel+silverNi+AgSilver5-20μm≥72h72h96h≤160℃
Nickel+goldNi+AuGolden5-20μm≥72h500h96h≤200℃
Nickel + chemical nickel (hang plating)Ni+Ap.NiSilver3-20μm≥24h500h48h≤200℃
Nickel + chemical nickel (barrel plating)Ni+Ap.NiSilver3-20μm≥72h500h48h≤200℃
EpoxyEpoxyBlack, grey10-30μm≥72h72h200h≤160℃
Nickel copper + epoxyNiCu+EpoxyBlack, grey20-40μm≥500h500h200h≤160℃
AluminumPVD.AlSilver white2-15μm≥100h500h200h≤400℃
Aluminum + epoxyPVD.Al+Epoxyblack, grey15-30μm≥200h500h200h≤160℃
ParyleneParyleneColorless and transparent20-50≥220h500h48h≤120℃
Note: The corrosion resistance of different products depends on the actual shape;

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