ACF hot press machine is a device that heats two parts pre coated with solder flux tin (ACF conductive adhesive) to a temperature sufficient to melt and flow the solder (ACF conductive adhesive), solidifies, and forms a permanent electrical and mechanical connection between the parts and the solder (ACF conductive adhesive). Different products have different heating rates to choose from. The hot press head ensures average temperature, rapid heating, and long service life. The pressure head adopts a horizontally adjustable design to ensure that the components are evenly compressed. Temperature numerical control, clear and precise. Equipped with a digital pressure gauge that can preset the pressure range.
Chinese name: ACF Hot press machine
Features: Multi stage heating control
Nickname: ACF Bonder
Category: Soldering, ACF, ACP, etc
Introduction:
Hot press machine, also known as bonding machine. According to the different media used for hot pressing, it can be divided into soldering, ACF (anisotropic conductive tape), ACP (anisotropic conductive adhesive), and TBF (hot melt adhesive film). Suitable for connecting FPC (flexible circuit board), HSC (zebra paper), TAB with LCD and PCB. Due to the trend of miniaturization in the pitch of PCB or FPC in consumer electronic products, traditional soldering processes are no longer able to meet the requirements of extremely fine hot pressing. The ACF process has gradually been applied by mobile phone designers.
Characteristic:
1. Using pulse heating technology, temperature control is precise, with a temperature sampling frequency of 0.1s
2. Diversified work modes such as single work platform, rotating work platform, and left and right mobile platform.
3. Multi stage temperature control.
4. Real time temperature curve display.
5. Silicon tape indexing mechanism.
6. CCD vision system provides precise alignment.
7. Large capacity program pre storage.
8. Touch control interface, program password protection.
Working principle:
Pulse heating principle. Due to the special design of the welding head surface, the resistance of the welding surface is very small, and the current will pass through the section with the smallest resistance. By continuously changing the voltage, adjusting the current level, and using the soldering head to quickly generate heat.
Categories:
Constant temperature hot press, pulse hot press, dual station hot press, dual head pulse hot press, desktop hot press, vertical hot press, etc
Application areas:
1. Mobile phone manufacturers, 2 TV manufacturers, 3. Touch screen manufacturers, 4. Computer manufacturers, 5. LCD/LED/OLED and other display screen production and maintenance manufacturers, 5. Printers, 6. Film switches, etc
Constant temperature ACF hot press machine
Constant temperature hot press machine is a type of hot press machine that can work continuously at a constant temperature. It is the most widely used equipment in the assembly process of LCD panels.
OL-FD006 Single up and down positioning plate form moving FOGOL-F0712,7-12inch double head,180mm long head FOG FOB bonding machine
Product Introduction
Its main function is to establish a mechanical and electronic connection between ITO, ACF, and FPC on the LCD panel. With the rapid development of the domestic LCD industry in recent years, the related equipment industry has also developed rapidly. Currently, the main manufacturers of constant temperature hot press machines are gathered in Bao’an, Shenzhen.
Constant temperature hot press belongs to the branch of semiconductor equipment in electronic manufacturing equipment, so the precision requirements of the equipment are high. Generally, it is equipped with a visual system, and the equipment design generally prohibits the generation of components that pollute the air, such as oil stains.
Therefore, general accessories such as cylinders and precision linear slides are used, while oil-free air machines are used to provide air sources. On the one hand, it is beneficial for the lifespan of the equipment, and on the other hand, it will not produce significant oil particles in the working environment.
Structural composition:
It consists of hot pressing components, fine-tuning fixtures, visual systems, and other parts.
Product classification
Constant temperature hot press machines can be divided into vertical constant temperature hot press machines and desktop constant temperature hot press machines according to their installation methods. According to the hot pressing head components, it can be divided into single head constant temperature hot press, double head constant temperature hot press, triple head constant temperature hot press, and multi head constant temperature hot press. According to their usage functions, they can be divided into simple constant temperature hot press machines and multifunctional constant temperature hot press machines. According to visual alignment, it can be divided into upper alignment constant temperature hot press, lower alignment constant temperature hot press, and upper and lower alignment constant temperature hot press. According to whether the platform is movable, it can be divided into fixed platform hot press, front and rear platform mobile hot press, and rotating platform hot press.
Usage conditions of constant temperature hot press machine
The normal use of a constant temperature hot press machine must meet the following conditions: the power supply voltage fluctuation at the location of the machine is small, the ambient temperature is below 30 degrees Celsius, and the relative humidity is less than 80%.
The position of the machine should be away from the vibration source, avoid direct sunlight and thermal radiation, and avoid the influence of moisture and airflow. If there is a vibration source near the machine tool, anti vibration grooves should be set up around the machine tool. Otherwise, it will directly affect the machining accuracy and stability of the machine, causing poor contact of electronic components, resulting in malfunctions and affecting the reliability of the machine. The best option is to use a Class 10000 clean room with no vibration source nearby.
Pulse ACF hot press machine
OL-FDP005 PULSE HEATING BONDING MACHINEOL-FP005 PULSE HEATING FOG FOB BONDER
Introduction:
The pulse hot press uses a transformer to generate a low voltage and high current, which quickly heats up through the welded joint. Pulse current refers to the ratio of the ON and OFF frequencies of the current. The larger the pulse ratio, the greater the current output, and the faster the temperature rise of the welded joint. The pulse hot press places the workpiece in the fixture (if necessary, vacuum can be activated to fix it). Place the fixture under the welding head, press the double start button, press the workpiece under the welding head (start heating), and the temperature will quickly rise and accurately maintain a constant temperature according to the input parameters, up to 4 temperature zones (solder reflow at this time), blow air for cooling (solder solidification), and the welding head will rise (complete).
Working principle
The pulse hot press machine applies a certain pulse voltage to the hot press head, which heats up the connected objects. When the temperature reaches the melting point of the solder (i.e., the pre-set temperature), the tin between the connected objects is melted and connected together The general pulse hot press uses temperature closed-loop control.
Characteristic
Pulse hot press machines are mainly used for soldering devices that cannot be soldered using normal SMT+reflow ovens. When soldering with a soldering iron, inconsistent and uneven soldering appearance, virtual soldering, and product damage are prone to occur. The pulse hot press is different from the constant temperature soldering iron. The pulse hot press can reach the desired temperature at the moment of power on, and once no voltage is applied to the two ends of the soldering head, it can instantly reach room temperature; And the welding head is flat, so the appearance of the welded product is flat and consistent, with very few instances of poor soldering.
Pulse heating welding machine can prevent temperature drop caused by heat dissipation through temperature feedback function, which is more efficient compared to constant temperature heating method. The pulse current heating method in preloading engineering can more effectively control and manage temperature. The heat hardening method after pressurization can prevent the displacement of ACF or the unconnected conductive particles
1. Pulse heating technology for rapid heating and cooling
2. Equipped with temperature correction/timely temperature compensation function, built-in hot press head temperature over temperature protection function
3. Four high-definition cameras can independently fine tune, focus, and align accurately along the up and down, left and right, and front and rear axes
4. Equipped with a color touch operation screen and high-resolution LCD display, allowing for clear viewing of alignment before hot pressing
5. PLC programmable controller, capable of setting and storing various work programs
6. Can replace titanium alloy indenters of different sizes, hot press various brands of mobile phone cables/COF
7. The unique dual cylinder structure can eliminate the self weight of the pressure head, achieve precise pressure balance, and ensure stability
8. Different heating rates, hot pressing times, hot pressing pressures, etc. can be configured according to different products and ACF tape requirements
9. The workbench uses a micrometer to adjust the X, Y, Z, and θ axes for fine adjustment and positioning
10. Suitable for various mobile phone touch films and display cables, COF screen hot press bonding
11. Cable arrangement, the platform can design dedicated positioning molds according to the product, and be equipped with vacuum adsorption to ensure yield
Scope of application:
Serving mobile phone manufacturers, touch screen manufacturers, computer, printer and other manufacturers,
Purpose:
Pulse hot press machines are applied in the production processes of the following products: hot pressing of COF and flexible screens, hot pressing of COF and PCB, hot pressing of COF and FPC, hot pressing of ribbon cables, soldering of flexible ribbon cable FFC and flexible circuit board FPC or rigid circuit board PCB, soldering between TCP and circuit board PCB or flexible circuit board FPC, soldering between flexible circuit board FPC and circuit board PCB, etc.
