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About
We are proud to have supplied a wide range of high quality aluminum die castings for over 20 years to customers around the world across multiple industries.
About Ningbo Hersin Mold Co.
Ningbo Hexin Mould Co., LTD., founded in November 2010, is located in Ningbo Beilun, the hometown of mould in China. It is a professional company engaged in the research and development, application, production and sales of aluminum alloy casting mould. (Aluminum alloy casting company based on auto parts) At present, the company is committed to the expansion and development of low-pressure casting new energy field.
The main business areas of the company are as follows:
1, low voltage mold manufacturing; 2, low voltage product production;
3. Gravity mold manufacturing; 4. Gravity product production;
5, High pressure mold manufacturing; 6, High pressure product production;
7, mold structure analysis; 8, product molding analysis
Diversified development, focusing on the manufacture of aluminum alloy products, has been the company is committed to aluminum alloy and its related industries casting production.
HEXIN PRODUCT SHOW
In the development and production of aluminum casting (pressure casting, gravity casting, low pressure casting) projects, Hershey is recognized as a safe and reliable partner by our customers worldwide. We take pride in the satisfaction of our customers.
Introduction to Hole Processing Methods - Drilling, Reaming, Countersinking, and Reaming
Drilling The method of processing holes in solid material with a twist drill is called drilling. General processing can be up to the size tolerance grade IT14 ~ IT11, surface roughness Ra value of 50 ~ 12.5μm. Commonly used drilling machines are: desktop drilling machine, vertical drilling machine and rocker arm drilling machines. 1, drilling machine 1) desktop drilling machine referred to as table drill (Figure 1), is a small machine tool, placed in the clamping table to use. Its drilling diameter is generally below 12mm. Mainly used for processing small workpieces on a variety of holes, clamping in the most used. Fig. 1 Benchtop drilling machine 1-Table 2-Feeding handle 3-Spindle 4-Belt cover 5-Motor 6-Spindle holder 7-Column 8 (2) Vertical drilling machine, referred to as vertical drill (Figure 2), is generally used to drill holes in medium-sized workpieces, and its specifications are expressed in terms of the maximum drilling diameter. Commonly used are 25mm, 35mm, 40mm, 50mm, etc...
05-29
2025
Chrome-free surface passivation for aluminum alloys
Aluminum alloys are widely used in aerospace, automotive, electronics and other fields due to their light weight, high strength and corrosion resistance. However, the traditional chromate passivation process has been strictly limited by international environmental regulations due to the high toxicity and serious pollution of hexavalent chromium. In this paper, the research on chromium-free passivation technology is carried out to explore the film-forming mechanism of silane/rare earth salt composite system, to improve the corrosion resistance of passivation film by optimizing the process parameters, and to analyze its environmental protection and economic value, so as to provide theoretical and technical references for the alternative chromate process. From this paper, we can learn: Aluminum applications and corrosion challenges - the key role of aluminum in industry and the need for corrosion protection. The shortcomings of the chromate process - the toxicity hazards of hexavalent chromium and environmental regulatory restrictions. Chromium-free passivation solutions - Advances in research on environmentally friendly alternative technologies such as silanes and rare earth salts. Experimental approaches...
05-17
2025
Aluminum alloy TIG and MIG welding process analysis: technology comparison, operation points and industry applications
Challenges and Importance of Welding Aluminum Alloys Aluminum alloys are widely used in automotive, aerospace and shipbuilding applications due to their light weight, high strength and corrosion resistance. However, its high thermal conductivity, oxidizability and susceptibility to thermal cracking make the welding process a serious challenge. Take the battery tray of new energy vehicles as an example, the weld needs to be both high strength and airtight, which is difficult to meet the needs of traditional processes, and TIG and MIG welding technology provides an efficient solution for this. Aluminum alloy features: low density: the density of aluminum alloy is smaller than that of steel and copper, about 2.7 g/cm3, so aluminum alloy products are lighter than steel products of the same volume. High strength: Aluminum alloy has high strength and hardness, and its strength and hardness can be significantly improved after heat treatment. Good electrical conductivity: the electrical conductivity of aluminum alloy is better than pure copper and steel...
05-12
2025
How many types of aluminum corrosion are there?
Types of Aluminum Corrosion 1. Atmospheric Corrosion The most common form of aluminum corrosion. Atmospheric corrosion of aluminum occurs due to exposure to natural elements. Because of its likelihood of occurring in most places, atmospheric corrosion accounts for the largest share of the total damage to aluminum caused by all types of corrosion combined in the world. Atmospheric corrosion can be categorized into three sub-categories. They are dry, wet and moist, depending on the humidity level of the service environment. Dry corrosion (humidity 60%): a thick liquid film accelerates ionic migration and the corrosion rate is significantly higher. Since moisture content can vary greatly depending on your geographic location, some areas will show more...
05-08
2025
A380 aluminum alloy composition and physical properties analysis
As a highly efficient solution for die casting, A380 is the most popular die casting aluminum because it combines the properties of easy casting, ease of machining, and good thermal conductivity. It has a high degree of variability, load-bearing capacity, and resistance to high-temperature splitting. Although Type A380 has always been considered easy to machine, it is slightly rough due to its high silicon content. It is utilized in a wide variety of products including motor equipment chassis, engine mounts, gearboxes, furniture, generators, and hand tools. The following is a visual presentation of its core technical parameters through professional data comparison: A380 Aluminum Alloy Composition Table Elemental Content Range (wt%) Functional Role Aluminum (Al) 85.0-89.5 Matrix material to ensure a lightweight base Silicon (Si) 7.5-9.5 Enhances fluidity and wear resistance Copper (Cu) 3.0-4.0 Enhances high-temperature strength and hardness...
Reasons for choosing Ningbo Huxin as a supplier
As a technology leader in the field of aluminum alloy casting for more than 20 years, Ningbo Hexin has become a preferred partner in the automotive, new energy and high-end equipment manufacturing fields by virtue of the layout of the whole industrial chain and continuous innovation. The following is an analysis of the core competitiveness of the enterprise from the three dimensions of intellectual ability, quality control and technology cross-border:
✅ Smart Express
Digital full-process production, intelligent die-casting clusters to support rapid customization, delivery cycle speed up beyond the industry standard, yield rate is steadily high.
✅ Military quality
International standard certification system, strict control of casting internal defects, double precision testing to ensure the stability of extreme working conditions.
✅ Cross-border innovation
Multi-field material database support, 5G heat dissipation/photovoltaic bracket technology breakthroughs, adapted to new energy, high-end equipment and other cutting-edge needs.
