Factory Technology Learning __ Automotive Electronics

Wenzhou factory visit back, record under the factory process content:

A. mould:

Mold is used to form the tool, it is mainly through the physical state of the molding material changes to achieve the shape of the product processing.

Modern mold production process is as follows:
1 ESI (earlier Supplier evolvement vendor early involvement): this phase is mainly between the customer and the supplier on product design and mold development and other aspects of technical discussion, the main purpose is to enable suppliers to clearly understand the product designer's design intent and precision requirements , but also let the product designer to better understand the mold production capacity, product process performance, so as to make a more reasonable design.
2 quotation (quotation): including the price of the mold, mold life, turnover flow, the number of tons of machine requirements and mold delivery. (more detailed quotation should include the product size weight, mold size weight, etc. information.) ）
3 orders (Purchase order): Customer orders, deposit issued and supplier orders to accept.
4 die production planning and scheduling (Production planning and Schedule arrangement): This phase requires a response to the customer on the specific date of delivery of the tooling.
5) Mold Design: May use the design software has Pro/engineer, UG, Solidworks, AutoCAD, CATIA and so on
6) Procurement of materials
7 Mold Processing (machining): involved in the process is roughly the car, gong (milling), heat treatment, grinding, computer gongs (CNC), EDM (EDM), wire cutting (WEDM), coordinate grinding (JIG gringing), laser lettering, polishing and so on.
8) Die Assembly (Assembly)
9 Mould Test Mould (Trial Run)
10) Model evaluation report (SER)
11) Sample evaluation report approval (SER Approval)

two. Injection Molding

Injection molding is a kind of industrial product modelling method, the product usually uses the rubber injection molding and the plastic injection molding. Injection molding can also be divided into injection molding and die-casting method.

Injection molding machine (injection machine or injection molding machine) is a thermoplastic or thermosetting materials using plastic molding mold into various shapes of plastic products, the main molding equipment, injection molding is through the injection molding machine and mold to achieve.

three. Stamping:

Stamping is to rely on the press and die on the plate, strip, pipe and profile, etc. exert external forces to produce plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping parts) of the forming process method.

four. SMD:

Electronic Circuit Surface Assembly technology (Surface Mount Technology,smt), known as surface mount or surface mount technology, is currently one of the most popular technologies and processes in the electronic assembly industry.

It is a type of pin or short lead surface assembly components (SMC/SMD, in Chinese, it is mounted on the surface of the printed circuit board (printed circuit BOARD,PCB) or on the surfaces of other substrates, and is welded and assembled by means of reflow or dip welding.

SMT Basic Process elements: screen printing (or dispensing), mounting , reflow soldering (curing), cleaning , testing , repair
1, Screen Printing: Its role is to solder paste or patch plastic leak printed to the PCB pad, for the components of the welding preparation. The equipment used for screen printing machine (screen printing press), is located in the forefront of SMT production line.
1, point glue: It is the glue drops to the PCB board fixed position, its main role is to fix the components to the PCB board. The equipment used is a dispensing machine, which is located at the front of the SMT production line or behind the testing equipment.
2, Mount: Its role is to install the surface of the components accurately installed to the fixed position of the PCB. The equipment used for Mounter, is located in the SMT production line in the back of the screen printing machine.

3, curing: Its role is to paste the glue melts, so that the surface assembly components and PCB board firmly bonded together. The equipment used for curing furnace, is located in the SMT production line in the back of the Mounter.
3, Reflow soldering: Its role is to melt the solder paste, so that the surface assembly components and PCB board firmly glued together. The equipment used for reflow soldering furnace, located in the SMT production line in the back of the patch machine.
4, Cleaning: Its role is to assemble a good PCB board on the human body harmful welding residues such as flux, such as removal. The equipment used for cleaning machine, the location can not be fixed, can be online, but also not on the line.
5, Detection: Its role is to assemble a good PCB board for welding quality and assembly quality testing. The equipment has magnifier, microscope, on-line tester (ICT), flying needle tester, Automatic optical inspection (AOI), X-ray detection system, function tester, etc. Location according to the needs of the inspection, can be configured in the appropriate place in the production line.
6, Repair: Its role is to detect the failure of the PCB board for rework. Tools used for soldering iron, repair workstations and so on. Configured in any position in the production line.

Five. Assembling:

Assembly line is an effective combination of human and machine, the most fully embodies the flexibility of equipment, it will be conveying systems, accompanying fixture and online plane, testing equipment organic combination to meet the requirements of the Assembly of many varieties of products.

assembly line transmission mode has synchronous transmission/(mandatory) can also be asynchronous transmission/(flexible), according to the choice of configuration, the realization of manual assembly or semi-automatic assembly.

Six. The Experiment

Various experiments: EMC, current, rotational force, pressure, metering, durability, temperature, etc.