1. Essential Knowledge about Mold spring
Mold spring classification
Mold spring includes: Japanese standard mold springs, German standard mold spring, MQB-
type nitrogen spring, MQJ nitrogen spring, MQC-type nitrogen spring, MQH nitrogen spring
and polyurethane spring. The mold spring usually refers to rectangular mold spring.
Mold spring material selection
The mold spring material generally uses the chromium alloy steel. The chromium alloy spring
steel has heat resistance, rigidity and long life characteristics.
Characteristics of mould springs
Rectangular mold spring has small size, good elasticity, large rigidity, high precision,
production materials are rectangular, surface is coated (plated) by different colors to
distinguish different weight, beautiful looks and other characteristics.
Application of mold spring
is widely used in the stamping die, metal die-casting mold, plastic mold and other elastic
motion precision machinery and equipment, automotive and other fields.
Mold spring production standard
Now the standardized mold spring production standards include: ISO9001: 2000, Japanese
JIS, ISO10243, NAAMS (North American Automotive Metric Standards), the springs

2. produced according to the different standards are Intraday standard spring, the American
standard spring, ISO10243 German standard Carbon stainless alloy steel automobile, etc.
Poor quality spring will have a great impact on mold precision and quality
The mold spring is the special spring that needs to expose a variety of complex situations.
The mold springs are the core components of stamping dies, injection molds and other
manufacturing equipment. Because it work repeatedly at high-speed in a narrow space, it
always is required to play the best performance characteristics under the high heat, high-
amplitude, high pressure complex conditions. The quality of mould springs begins with the
best choice of materials and its material should use that produced by specialized
manufacturers. Generally, rolling the circular oil tempered wire or other material into the mold
spring material by by non-specialized materials manufacturers will generate a fatal problem
the performance of the mold spring, which is deformation or breakage, etc. The quality of the
spring 80% depends on the raw material, the use of poor quality spring will have a great
impact on mold precision and quality.
Contemporary mold spring supplier should have sound system
Product quality largely depends on the state-of-the-art equipment. The contemporary world
best spring manufacturing equipment can directly make precision machining and strictly use
a variety of roller guide. In addition, technical force and strict quality management is also one
of the important factors. Mold springs far reach fatigue test requirements of 300,000, 500,000
and one million times. In terms with spring, from the choice of materials to the design and
interpretation of a series of process measurement, the durability and reliability of the product
are ensured from a variety of ways in testing, evaluation and automation. Owning the sound
system to develop and provide spring products is what the contemporary mold spring
supplier should have.
www.wire-spring.net is a custom spring manufacturer located in Foshan City, Guangdong
Province, China, providing in custom made spring products like flat spring, mould coil spring,
and all sorts of wire spring: compression spring, torsion spring, extension spring, and
manufacturing requirements to all industries, such as electronics, automobile, toys, house
ware, electrical appliances and industry.

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mold-spring.htm