Civil Air Defense Lost Foam Castings

"Civil air defense engineering is the abbreviation of civil air defense engineering. Civil air defense engineering includes underground protective buildings built separately to ensure wartime personnel and material shelter, civil air defense command, medical rescue, etc., as well as wartime can be used for air defense built in combination with ground buildings. Basement. Civil air defense project is an important facility to protect urban residents from nearby shelter during wartime and reduce casualties. Civil air defense project is usually used as storage room, parking lot, shopping mall, crossing passage, etc. Biological and chemical weapons and other air strike weapons cause harm to people, to ensure the sheltering of personnel and materials in wartime, civil air defense command, medical rescue, etc. Civil air defense castings refer to the parts and components that are related to this use.

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. has lost foam casting, sand casting, investment casting, shell casting and water glass casting processes. Manufacturers from various countries are expected to consult Civil Air Defense Lost Foam Castings.

Product Description

Civil Air Defense Lost Foam Castings Basic Facts

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:

Tin bronze, silicon bronze, aluminum bronze, brass, copper, titanium alloy, high manganese steel, high chromium steel, high nickel steel, carbon steel, alloy steel, stainless steel, gray iron, cast iron, cast steel, cast aluminum, etc. Customized according to customer requirements.

Production Process

Lost Foam Castings process:

Classification And Composition Of Civil Air Defense Engineering

1. Classification of civil air defense projects

Civil air defense engineering can be divided into command engineering, air defense professional team engineering, medical rescue engineering, personnel sheltering engineering and supporting engineering according to the functions used in wartime. The command project is used by the civil air defense command organs in wartime; the air defense professional team project is used by the professional team members who perform tasks in wartime; the medical rescue project is a place for early treatment of the wounded in wartime; the personnel shelter project can be used in wartime It is used by people who stay in the city to cover. Supporting projects can ensure people's wartime water, electricity, material reserves and so on. For ordinary residents staying in the city, when sheltering in wartime, they should follow the guidance of the staff to enter the personnel sheltering project.

2. The mouth of civil air defense engineering

The entrance and exit are the openings for personnel and equipment to enter and exit the civil air defense project. When used in wartime, each civil air defense project has at least two entrances and exits, one of which is the main entrance and exit, and the other is the secondary entrance and exit. In addition, the entrances and exits of the civil air defense projects that are only used in peacetime must be blocked during wartime, and personnel are not allowed to enter and exit.

The main entrance and exit of the personnel sheltering project shall have at least two civil defense doors. Between the two civil defense doors is the anti-virus channel. During the airtight protection of the civil air defense project in wartime, personnel entering and leaving the project must pass through two civil air defense doors and anti-virus passages, so that people inside can be protected from air raid weapons and poisonous gases. During the airtight protection of the civil air defense project, the secondary entrances and exits are generally not allowed to be used, but when the main entrances and exits are damaged, the secondary entrances and exits can be used.

3. The main body of civil air defense engineering

The main body of the civil air defense project is the internal space used to cover personnel, materials, and vehicle equipment. Each space in the civil air defense project that independently shields people or materials is divided into a protective unit, and each protective unit has its own entrance and exit, independent protective facilities and equipment, ensuring that the interior becomes an independent protective space. For personnel sheltering projects, in order to facilitate personnel activities, there are generally rest areas, office areas, toilets, drinking rooms and equipment operation rooms in the protection unit. For ordinary personnel, they must operate in the designated area according to the requirements of the staff, and are not allowed to enter the equipment operation room without authorization. Each protection unit is divided into several anti-explosion units. When part of the project is damaged, it can ensure that other parts are not directly damaged.

4. Facilities and equipment in civil air defense projects

There are many facilities and equipment in the civil air defense project to protect everyone's safety. There are very solid air defense doors installed at the entrances and exits, which can block bomb shrapnel and explosion shock waves from entering the project; there are explosion-proof wave valves, dust filters, and filter absorbers installed on the ventilation ducts, which can convert the outdoor poisoned air into clean air. Enter the project for personnel to breathe; the decontamination facilities installed in the anti-virus channel can clean the dust contaminated by the personnel entering the project; in addition, the project also has emergency power supply, water source, communication, nuclear biochemical monitoring and automatic control equipment. These equipments ensure the safety of masking personnel, and non-professionals are not allowed to operate these professional equipments, so as to avoid accidents or even loss of protective function of the entire project. So there will be many kinds of Civil Air Defense Lost Foam Castings.

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.