Die-casting mold base for automotive gearbox housing - Gearbox Housing - Conventional Mould Base - Products - Kejia (Changxing) Mould Base Manufacturing Co., Ltd.

Product Description

01.

Conventional automotive gearbox housings mainly rely on casting molding, and cast parts usually have some surface defects such as air holes, shrinkage holes, cracks, etc., after post-treatment, will affect the physical properties of the product, and may even cause the product to be unusable. The mechanical properties and surface quality of castings are low, with coarse grains and loose structure, requiring further processing. Casting process is difficult to avoid due to the product surface roughness, unevenness, and not suitable for some specific processing, high requirements for mold materials, mold manufacturing costs. Chemical substances and high temperature heating equipment used in casting production may release harmful substances and pollute the environment. The energy consumption of casting production is high, which may lead to the waste of energy resources.
02.

The safety performance assessment of the mold base is an important part to ensure the safety and reliability of the mold in the process of use. The assessment includes the structural safety of the mold, the safety of the material, the safety of the heat treatment process. Through the assessment, potential safety hazards can be found in time and corresponding measures can be taken to improve.
03.

It has high hardness and wear resistance, which can effectively resist the wear of plastics, rubber and other materials, and extend the service life of the mold. At the same time, its toughness is also very good, can withstand a greater impact at the same time to maintain good stability. In addition, 718 mold steel also has excellent corrosion resistance and heat resistance, can be in high temperature, humidity and other harsh environments to maintain good performance.

Product Application

Die casting mold base for automotive gearbox housing

Product Parameter
- High efficiency. In all the casting methods, die casting is a method of the highest productivity, which is mainly by the characteristics of the die casting process decision, and with the further development of mechanization and automation in the production process, it has improved. The production time of one cylinder is generally about 3 minutes, which is less time-consuming than conventional low-pressure or sand casting.
- High precision. Only individual parts need to be processed for use.
- High strength and surface hardness of castings.
- Energy-saving and consumption-saving. Generally, each equipment can produce about 70,000 pieces per year.
- Small footprint.
- Short process. In the traditional casting process, cylinder production need to go through modeling, core making, pouring, cooling, sand, cleaning, machining and heat treatment and many other processes. Die-casting only need to process the mold in advance, remove the cylinder block blank castings from the die casting island soon after pouring (die casting machine and peripheral equipment are collectively referred to as die casting island), or by manual removal of burr and flashing, followed by inspection, processing, etc.

Product Parameters

The relative depth tolerance of the frame is +-0.02

The relative depth tolerance of the frame is +-0.02, the die-casting mold base requires the relative depth of the frame to be precise, so as to meet the various parts in the installation to ensure that the relative depth of the direction of the fit in line with the design requirements of the tolerance. We use special processing technology to ensure that the depth of the cavity in accordance with the unified standards of one-time processing molding, to meet the performance requirements of the product.
Main frame tolerance technical requirements: +0.12 to +0.16.

With the acceleration of the automotive mold development cycle, the requirements for the products are getting higher and higher. This will inevitably require to shorten the production cycle of the mold base. The adjustment workload of die casting mold and mold core determines the time of the entire mold production cycle, so the tolerance requirements of the main frame of the mold base is very high, the mold core must be adjusted successfully at one time, and ensure the fit gap with the mold frame. The main frame tolerance of the die casting mold base produced by our company meets such requirements, which greatly shortens the processing cycle of the mold base and improves the production efficiency.
Cavity perpendicularity requirement: +-0.02.

Quality inspection and control is an important means to ensure the quality of the mold base. In the manufacturing process of the mold base, it is necessary to carry out strict quality inspection of each component to ensure that the dimensional accuracy, surface quality, material properties and so on meet the design requirements. At the same time, it is also necessary to monitor the use of the mold, discover and deal with quality problems in time, and ensure the stability and reliability of the mold.
Assembly requirements

We will carry out the final cleaning and trial assembly of the mold base after processing and testing is completed, check the assembly of all parts and the main plate, and confirm the fit gap between each part in advance to to ensure the mold core can complete test after loading to the mold base.

Product Video