Characteristic of zinc
die casting products:
1. High specific density, more
strength than plastic injection molding.
2. Good casting performance, Producing complex shape and Thin-walled precision die casting
parts,
3. Easy do the surface treatment: Plating, powder
coating, Painting.
4. Do not attract iron when Melt and die casting, do
not corrosion Zinc Die Casting Mould and Non-stick mold.
5. Have good room temperature mechanical properties
and wear resistance.
6. Low melting point, Melts at 385℃, more easily forming
than aluminum alloy die-casting molding.
M Domestic commonly used
die-casting zinc alloy material performance:
The traditional
die-casting zinc alloy: No.2, No.3, No.5, No.7. ZA8 Currently the most widely
used is zinc alloy No.3.
The application of
commonly used zinc alloy:
No.2: It is used to those mechanical fittings that
have special need in mechanical capability, and need high rigidity and normal dimension and precision.
No.3: Good liquidity and
mechanical properties, and the best combination of mechanical properties, casting properties and
economical. It applied to the die casting part which the mechanical strength requirement
is not high. Such as toys, light parts, decorations and part of the electric
parts.
No.5: Good fluidity and
good mechanical properties, high wear resistance. It applied to the zinc die
casting part which has requirements of mechanical strength. Such as auto parts,
mechanical and electrical parts, machinery parts, electrical components.
Domestic main zamak
chemical composition %
Die-casting zinc alloy
mechanical properties
The precision of the Zinc Alloy Die Casting: ±0.05mm;
Smoothness of surface of rough part: Ra1.6~Ra3.2;
Shrinkage rate of zinc die casting products: 0.3%;
Material wastage rate: 5%;
General zinc die-casting machining allowance: 0.3mm~0.5mm;
Surface preparation methods: Sand blasted, Shot blasting, Powder coating,
Painting, Plating, Electrophoresis, Polishing
The zinc alloy die casting production and QC control
Zinc Die Casting Parts, Zinc Die Cast, Zinc Alloy Die Casting, Zinc Die Castings, Zamak Die Casting Part, Zamak Injection Part NINGBO BEILUN LEMA MACHINERY TECHNOLOGY CO.,LTD , http://www.china-lema.com
Introduction :
 YPD-200C Pill Hardness Tester is special instrument for testing quality in hardness of pill, applicable to the test of hardness of pill. It becomes an inessential test instrument in laboratories of pharmacy factories, Medicine Teaching & Research, Medicine Science & Research, Medicament Testing Departments.Â
The hardness tester has many advantages such as convenience of operation, high precision of test, good performance of repeating, directly and clearly showing of reader, automatically setting of reader with zero when tester is started, automatically stopping when the pill breaks into pieces, maintaining reader of hardness for several seconds.Â
The tester can provide useful reference to relevant experimental data such as hardness of pills, reliability of methods of package and transportation, collapsing degree and releasing degree of pills.Â
Main Feature:
1. Micro Computer Control
2. Automatically measure and test the maximum, minimum, standard deviation and the mean difference.
3. Blue LCD Display
Main Data:
Tablets Pressure Range
1~30
Max. Tablet Diameter
2-30mm
Hardness Accurate
±0.5%
Resolution
0.01
Power
30W
Noise
<50dB
Power Supply
220V±10% 50Hz
the surface of Zinc Die Casting part is smooth.
Ypd-300d Digital Tablet Hardness Tester Instrument with LCD Display
Model NO.: YPD-300D
Place of Origin: Zhejiang, China (Mainland)
Brand Name: Ltpm China
Condition: New
Product Type: Hardness Tester
Max. Tablet Diameter: 2-30mm
Power: 30W
YPD-300D Automatic Hardness TesterÂ