The experimental structures are basically divided into three types: all steel structure; Steel wood structure; For the whole wood structure, the following installation steps and requirements are made for the test bench of the above three structures.

1、 Installation steps of all steel test bench:

Step 1: check the height of the adjusting feet at the bottom of the cabinet, and rotate all the adjusting feet to a distance of 5mm from the ground for adjustment when the ground is uneven.

Step 2: put various types of cabinets in place according to the drawings and observe whether the top table is high or low. If it is not flat, adjust the bottom foot of the cabinet and measure it with a level ruler to make it horizontal and vertical. After the edges of the cabinet are aligned, connect it with screws or cap bolts. When connecting, pay attention to the flatness of the surface and whether there is concave convex. Each adjusting foot must touch the ground and be able to bear gravity.

Step 3: after fixing the side sealing plate, you can enter the installation of the table. If there are water tank and reagent rack column holes on the table, open them before gluing the table.

There are basically two methods for installing the table:

1、 Adhesive valve; 2、 Screw fixation method.

(1) Apply silica gel evenly on the bonding surface of the connected cabinet body, and the silica gel around is 10mm-15mm away from the edge of the cabinet body to prevent glue overflow after pressing it.

(2) After the glue is finished, put the table surface flat on the cabinet body. When it is flat, put it in the position as far as possible at one time without dislocation, so as to prevent the glue from spilling and falling on the cabinet body when moving, which is not easy to clean and affects the bonding effect.

(3) The lines placed on the table are transitional and flat. If the table is not flat, two treatment methods can be used: leveling and heavy pressing. That is, the position shall be padded with hard materials, and the height shall be pressed down with heavy objects, depending on the situation. There is also a method of using screws as mediation. Drill holes on the folding edge of the rigid cabinet, and then use the length of screws to adjust the height of the table. With 4mm screws, the hole diameter should be 3.2mm.

(4) After the glue is dry, press the material on the front table, and then do the table joint treatment. If the corners of the table top are rounded, there shall be no seam between the table top and the table top; If the edges and corners of the table top are made into right angles, a gap ≤ 3mm shall be reserved for glue filling. Refer to the content in (2). The steps are as follows:

① First paste masking paper on the joint of the two countertops;

② Apply silica gel or epoxy resin glue with the same color as the table. If 3mm seam is left on the table, the glue must be filled to prevent crack in front of the seam and glue peeling;

③ After 20 minutes, scrape the adhesive on the table with a metal sheet or scraper, quickly tear off the textured paper and clean it