Armored Vehicle Water Glass Investment Casting

Armored vehicle water glass investment casting

1. The expert team will cast satisfactory products for you

The old, middle and young design team has various national qualifications.

All kinds of equipment, exquisite craftsmanship, and comprehensive quality management system.

Castings have high cost performance, low price for the same quality, and excellent quality for the same price.

2. Various production equipment to improve production efficiency

It can produce inoculated cast iron of various grades of resin sand, with a single weight of up to 2 tons!

Years of production history, has accumulated rich production experience.

With the production of water glass investment molding process, can produce all kinds: automobile molds, cylinder blocks and machine tool accessories.

All kinds of equipment, exquisite craftsmanship and comprehensive quality management system, with an annual production capacity of 10,000+ tons.

Zhongwei Precision is willing to work with each customer to achieve the vision of win-win, coexistence and common development.

Product Description

Basic situation of Armored vehicle water glass investment casting

1. Implementation standards: The company strictly implements ISO9001 & TS 16949 certification.

2. Product material standards: ISO, GB, ASTM, SAE, ISO, EN, DIN, JIS, BS

3. Main processes: sand casting, silica sol investment casting, water glass investment casting,shell casting,deburring, sand blasting, machining, heat treatment, leak testing, surface treatment, etc.

4. Available materials:

High manganese steel, high chromium steel, high nickel steel, carbon steel, alloy steel, stainless steel, gray iron, cast iron, cast steel, cast aluminum, cast copper, etc. can be customized according to customer requirements.

Armored Vehicle Water Glass Investment Casting Lightweight

Having said that, in the past armored vehicles, if you want high defense, you don't have high maneuverability, and if you want high maneuverability, you don't have high defense. Therefore, there are light tanks with high mobility and heavy tanks with high firepower. However, with the efforts of various new armor materials, high defense and high mobility are no longer fish and bears.

Metal bulletproof material may be the armor material that armored vehicles have been using since its birth. With the development of weapons, metal bulletproof materials have developed from ordinary steel plates to high-hardness steels, double-hardness steels, as well as aluminum alloys and titanium alloys, and their protective capabilities have been continuously improved.

The above picture shows the properties of several typical foreign high-hardness and ultra-high-hardness armor steels.

In theory, in order to achieve better protection, it is enough to thicken the steel plate. But the heavy armor makes it difficult to maneuver, reduces flexibility, and increases engine failure rates. The heavy and super-heavy tanks that appeared during World War II proved that monsters with poor mobility played a limited role on the battlefield. It can not only make armored vehicles lighter, but also "meat", and it has to rely on other materials to help.

In addition to steel, aluminum alloys and titanium alloys are also good armor materials. Aluminum is lighter than steel. Using aluminum alloy armor instead of steel armor can generally reduce the weight by about 20% without reducing the anti-ballistic performance. Alcoa, an American aluminum giant, has received huge orders from the U.S. Army in recent years to provide it with aluminum alloy armor solutions. However, the melting point of aluminum alloy is low, it is easy to soften at high temperature, the aluminum particles will burn, and the fracture strength is also lower than that of steel armor.

Titanium alloys are only 60% denser than steel armor, but are comparable in strength to Jun steel and tougher than most aluminum alloy armors. Of course, titanium alloys have their own troubles - too expensive and difficult to machine.

In order to improve the protection ability, homogeneous armor is often not used (that is, the armor is made of the same material), such as aluminum-titanium multi-layer composite, aluminum-steel composite, ceramic, composite material and metal material combination, etc.

Ceramic has high hardness and compressive strength, which is conducive to resisting high-speed armor-piercing projectiles, and its density is lower than that of steel, so it is conducive to reducing the weight of armor.

But ceramic is a brittle material, so it cannot be used as a separate armor material, but is made into composite armor with metal or fiber. Also, composite armor usually uses modular ceramic blocks, so that when one ceramic is shattered, the others remain effective.

Currently, the three major ceramic materials used for bulletproofing are alumina (Al2O3), silicon carbide (SiC), and boron carbide (B4C). Their advantages and disadvantages are also very obvious.

Aluminum oxide armor, which is widely used due to cost advantages, is currently most likely to be replaced by silicon carbide. In areas where cost is not considered and weight reduction is a priority, boron carbide composite armor can be applied.

However, the ceramic materials used for armor have poor plasticity and low fracture strength, and cannot be imitated twice. Therefore, the current research focus of ceramic armor is to solve the problems of poor toughness and high cost. For example, the ceramic gradient materials that appear today can continuously change the composition and structure of the composite of ceramic and metal through a special process, so that the transition from the ceramic side to the metal side forms a physical parameter that also changes continuously. Ceramic gradient materials are much more resilient than composite armors combined with ceramic faceplates and metal backplates.

Resin matrix composites are also a good solution for lightweight armor materials. As early as World War II, the United States has successfully developed glass fiber/polyester armor materials. At present, the main application fibers of resin-based composite materials are E glass fiber, S glass fiber and aramid fiber.

High-performance glass fiber reinforced plastic is regarded as the first generation of composite armor materials, and it has been equipped as early as World War II. Their ballistic resistance is several times that of steel. The earliest T-64 main battle tank developed by the former Soviet Union was made of steel-fiberglass-steel composite armor, and it was one of the earliest armored vehicles to use composite armor. Of course, their weight is not relatively dominant in the fiber.

Aramid fiber, better known as Kevlar, a DuPont brand in the United States, is even more effective than fiberglass in terms of weight loss. Under the same quality, the ballistic resistance of the aramid composite material is 2 to 3 times that of the glass fiber composite material and about 5 times that of the steel. Under the condition of the same protection ability, the weight of the bulletproof material made of it can be reduced by at least 1/3 or more.

The US Army main battle tank M1 uses aramid fiber laminate and steel plate composite as armor, which can resist anti-tank missiles with a thickness of about 700mm, and can also reduce the instantaneous formation in the cockpit caused by being hit by armor-piercing projectiles. stress effect. Not only that, but key parts in the armored vehicle can also be equipped with aramid fiber composite materials to provide after-effect armor protection.

Among the high-performance fibers that have been developed, UHMWPE (Ultra High Molecular Weight Polyethylene) is less dense than water, 2/3 that of aramid, 1/3 that of aluminum and 1/8 of steel. In addition to being light, high strength, high modulus, and low elongation make it currently recognized as the fiber with the best anti-ballistic properties, but it is not as many as aramid fibers in application scenarios.

Similarly, the composite materials mentioned above cannot independently resist anti-armor weapons such as armor-piercing projectiles. Therefore, composite materials appear as composite armor intermediate materials. For example, the earliest T-64 main battle tank developed by the former Soviet Union used composite armor of steel-fiberglass-steel, and it was one of the earliest armored vehicles to use composite armor. Then the T-80U tank used steel plates and glass fiber composite materials alternately superimposed, a total of 5 layers of composite.

In addition, armored vehicles have also developed stealth materials, reactive armor, and intelligent armor systems to improve battlefield survivability.

In the future, armor materials should still develop in the direction of lighter protection and better performance.

Post Casting Process

1. Heat treatment: annealing, carbonization, tempering, quenching, normalizing, surface tempering

2. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

3. Surface treatment: powder spraying, chrome plating, painting, sandblasting, nickel plating, galvanizing, blackening, polishing, bluing, etc.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: flaw detection, spectrum analyzer, golden image analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine;

4. Provide after-sales service.

5. The quality can be traced back.